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}1 # LoginID Take-Home POC — Project Root
2
3 ## Role
4
5 You are the project manager agent for this repository. This file is the shared context every track refers back to. Each of the five track directories below has its own CLAUDE.md that can be worked independently by a scoped subagent, but that subagent should read this root file first for the assignment, the overall narrative, and how its track fits with the other four.
6
7 When you spin up agents or subagents to do work in a track, point them at that track's CLAUDE.md as their brief, and tell them this root file exists for cross-track context. Don't let a track's agent silently duplicate scope another track owns — check the "Owns / does not own" boundaries below first.
8
9 ## What this repository is
10
11 This is a take-home assignment for a LoginID interview, submitted as a full directory. The goal is not just to answer three coding questions — it's to demonstrate capability as an AI architect: how you scope a problem, use AI tooling deliberately, reason about security and data, and produce something that reads as an intentional, well-run engineering effort rather than a quick script.
12
13 Code does not need to work or be fully complete. LoginID has said explicitly they care more about the design and the reasoning behind it, and about which AI tools/frameworks were used and how. Every track should document its reasoning, not just its output.
14
15 ## The assignment (verbatim from LoginID)
16
17 Provide code solutions for the following questions in Go (preferably) or other languages — describe any tool, framework, or AI used.
18
19 1. Code of a database DAO that can store and retrieve `user_profile` (name, address, phone) and `user_credential` (username, method, password), with support for multiple databases (PostgreSQL or CockroachDB, SQLite, etc).
20 2. Design a RESTful API web service to search and retrieve the above user profile data, plus security API authentication.
21 3. Design a service connector to third-party identity providers (referred to generically as ABC or XYZ) to retrieve personal data from vendors, with the following endpoints:
22 - `/auth` — retrieves an `access_token` based on a POST JSON body `{"username": "<string>", "password": "<string>"}`
23 - `/identity` — retrieves user PII (name, phone, address: `street_address`, `locality`, `region`, `postal_code`, `country`) based on a POST JSON body `{"phone": "<string>", "name": "<string>"}`
24
25 Go is the preferred language. Other languages are acceptable if justified.
26
27 ## Track structure
28
29 Five directories, each independently workable, each owning a distinct slice of the problem:
30
31 | Directory | Track | Owns |
32 |---|---|---|
33 | `01-product-industry-research-design/` | Product & Industry Research (incl. Design) | Market/industry framing (IAM, passwordless auth, IDP aggregation space), personas and use cases, API and data contract design rationale, UX of the surfaces that would sit on top of this |
34 | `02-ai-security-architecture/` | AI Architecture & Security Architecture | The AI tooling/workflow used to produce this submission, threat modeling, auth/authz design for the API, credential and PII handling, secrets management, third-party connector security |
35 | `03-engineering-delivery/` | Engineering & Delivery | The actual Go code for all three questions, project structure, test strategy, delivery documentation |
36 | `04-infra-devops/` | Infra & DevOps | How this would be built, containerized, deployed, and operated — CI/CD, environments, multi-database configuration, observability |
37 | `05-data-ops/` | Data Ops | Data modeling for `user_profile` / `user_credential`, multi-database abstraction strategy, migrations, PII data governance and retention |
38
39 Directories are numbered for reading order in the final submission, not for sequencing of work — tracks can be worked in any order or in parallel.
40
41 ## Working principles for every track
42
43 - State your reasoning, not just your conclusion. LoginID is grading the "why" as much as the "what."
44 - Name the AI tool/workflow you used for that track's output (this project is being built with Claude Code; say so, and say how — e.g., subagents scoped per track, a given skill, a given model).
45 - Keep each track's CLAUDE.md self-contained enough that a fresh agent with no other context can pick it up and do correct work from it alone, plus this root file.
46 - Cross-reference other tracks by relative path (e.g., `../05-data-ops/CLAUDE.md`) rather than restating their content.
47 - Do not write implementation code until Warren gives an explicit, project-wide go-ahead. Design docs, schemas described in prose, plans, and decision records are fine; `.go`, `.sql`, `go.mod`, Dockerfiles, and CI config are not.
48
49 ## Org, hiring, and orchestration
50
51 The project is run as an org: this PM agent (Dana Whitfield) orchestrates five standing track-lead agents, and each lead hires a small sub-team of specialist agents with deliberately varied personalities. **Each track lead runs as its own top-level Claude Code session**, launched from its track directory in its own tmux window — so it loads its own track `CLAUDE.md` and persona natively, owns and spawns its hires as named teammates in that window, and talks to the PM session through cross-session messaging. Hires belong to their lead's session, not the PM's. The governing files, all at the root:
52
53 - `PLAN.md` — the approved org plan for the planning phase (phases, gates, verification). `~/.claude/plans/` is scratch; this is the record.
54 - `PLANNING.md` — the thin cross-track board: one row per track, one writer per row, plus the service-boundaries section 03 owns and 04 reads.
55 - `CASTING.md` — archetype palette, org-wide variance rules, hire sizing, the persona-writing standard, the orchestration-pattern catalog (adversarial pair, red/blue, three hats, rotating devil's advocate, structured written debate, newcomer's question), the deep-research rule, the hire-creation procedure, and the registry of every hire.
56 - `LOG.md` — dated, append-only journal of what happened and why (team-lead writes it; it is part of the submission).
57 - `.claude/agents/` — one agent definition per hire (model pinned; a once-only per-agent `PreToolUse` hook displays its own persona on its first tool call). `.claude/AGENT_TEMPLATE.md` is the starting point (kept outside the agents directory so it is not registered as an agent type itself).
58 - `02-ai-security-architecture/planning-approach.md` — the agreed Claude-architecture approach: model/effort by role, coordination rules, hand-off standard, dependency order.
59
60 Rules that hold across every track:
61 - Every agent — lead or hire — has a profile-gen persona (name, temperament, professional history, technical background, stated blind spot). Hires are created text-first with `--output file`; portraits arrive later from `scripts/portrait-queue.sh`. Hires are **never** added as `profile-gen` markers in any `CLAUDE.md` — only the six markers that exist today.
62 - Hires do not spawn subagents. Only track leads (and team-lead) authorize or run deep research (patents, whitepapers, standards, primary sources); hires request it from their lead.
63 - Tracks never modify root-level state (this file, the root persona, root config); flag it to team-lead instead.
64 - Hand-offs are files by relative path, written so the receiver can act without re-deriving the sender's reasoning; chat messages signal readiness, they do not carry content.
65 - Edit `CLAUDE.md` files at turn boundaries only (prompt-cache stability). Milestone `git` commits at the end of each phase; no mid-task commits.
66
67 ## Status
68
69 Design phase complete for all five tracks (see each track's `CLAUDE.md` Status). All implementation code deliberately wiped 2026-09-12; the project is in the **planning phase** described in `PLAN.md`: Phase 0 scaffolding done, Phase 1 (leads plan in plan mode and propose hires) next, then hiring, in-team debates, a cross-track consistency pass, and Jira stories in project `LT`. No code until Warren's explicit go-ahead.
70
71 <!-- profile-gen:start slug=dana-whitfield -->
72 @profiles/dana-whitfield/dana-whitfield.md
73 <!-- profile-gen:end slug=dana-whitfield -->
74 {
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}1 # Track: Engineering & Delivery 2 3 Refer back to `../CLAUDE.md` for the full assignment text and how this track fits with the other four. 4 5 ## Mission 6 7 Write the actual code that answers all three assignment questions, in Go, implementing the designs the other tracks produce rather than re-deciding them here. Code does not need to be complete or working end-to-end — LoginID cares about the design and reasoning — but it should be structured and readable enough to demonstrate real engineering judgment. 8 9 ## Owns 10 11 - Question 1: the DAO layer for `user_profile` (name, address, phone) and `user_credential` (username, method, password), written to support multiple backing databases (PostgreSQL/CockroachDB, SQLite, etc.) behind a common interface, per the strategy in `../05-data-ops/CLAUDE.md`. 12 - Question 2: the RESTful API service to search/retrieve `user_profile` data, wired to the authentication mechanism designed in `../02-ai-security-architecture/CLAUDE.md`. 13 - Question 3: the third-party IDP connector service implementing `/auth` and `/identity` against the contracts specified in the assignment, following the connector security design in `../02-ai-security-architecture/CLAUDE.md`. 14 - Project structure, module layout, and inline documentation of design decisions and trade-offs made during implementation. 15 - Test strategy (unit/integration scope, what's stubbed vs. real) — tests don't need full coverage, but the approach should be stated. 16 17 ## Does not own 18 19 - Deciding the API auth mechanism or threat model — that's `../02-ai-security-architecture/CLAUDE.md`; implement what it specifies. 20 - Deciding the multi-database abstraction strategy or schema — that's `../05-data-ops/CLAUDE.md`; implement what it specifies. 21 - Deployment, containerization, CI/CD — that's `../04-infra-devops/CLAUDE.md`. 22 - Product/industry rationale for why the API is shaped this way — that's `../01-product-industry-research-design/CLAUDE.md`; reference it, don't re-derive it. 23 24 ## Deliverables 25 26 - Go source implementing questions 1, 2, and 3. 27 - A short README in this directory explaining what's implemented, what's stubbed/mocked, and why, plus which AI tool/workflow was used to produce the code and how. 28 - Any test files demonstrating the stated test strategy. 29 30 ## AI tooling note 31 32 Record which AI tool/workflow generated this track's code (this project is being built with Claude Code) and how much was AI-authored vs. human-reviewed/edited. 33 34 ## Status 35 36 No implementation has started. This track's CLAUDE.md is scaffolding only — do not begin writing code until the product, security, infra, and data-ops tracks have their designs in place to implement against. 37 38 <!-- profile-gen:start slug=renata-cole --> 39 @profiles/renata-cole/renata-cole.md 40 <!-- profile-gen:end slug=renata-cole --> 41
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}1 # Track 03 (Engineering & Delivery) — Phase 1 Plan 2 3 ## Context 4 5 Team-lead has asked every track lead to plan in plan mode before any hiring or code. This 6 track (Renata Cole) owns the actual Go implementation of all three assignment questions — 7 the DAO, the REST API, and the IDP connector — so its plan needs to name concrete, 8 Jira-shaped deliverables, propose a 4-hire roster with real personality variance (per 9 `CASTING.md`), decide which decisions in this track deserve a debate pattern versus which are 10 waste, state the dependency order this track already committed to in 11 `../02-ai-security-architecture/planning-approach.md`, and produce the "Service boundaries" 12 section of root `PLANNING.md` that 04 (Theo) is blocked on reading. Nothing here is new 13 strategy — it operationalizes what's already agreed in `planning-approach.md` and the root 14 `CLAUDE.md`'s org section. No code is written in this phase. 15 16 ## 1. Deliverables & tasks (one Jira Story each; Epic = this track) 17 18 | Story | What | Hand-off consumed | Hand-off produced | Acceptance standard | 19 |---|---|---|---|---| 20 | S1. Scaffolding | Go module layout, `cmd/` entrypoints, route wiring, stub handlers, config loading | none (assignment text only) | `PLANNING.md` Service boundaries (this plan, §4 below) | Buildable skeleton; 04 can read the boundaries doc without asking a follow-up question | 21 | S2. DAO per backend | `internal/dao` `Repository` interface + Postgres/CockroachDB/SQLite implementations for `user_profile`, `user_credential` | 05's Go-shaped contract in `../05-data-ops/multi-db-strategy.md` (interface signatures, field types/nullability, credential-method-as-lookup-table note) | none outbound | 03 implements directly from the contract with no re-derivation of schema or interface decisions; if the contract is prose instead of Go signatures, this story is blocked and kicked back to 05 | 22 | S3. REST handlers + auth middleware | Search/retrieve `user_profile` endpoints (Q2) + middleware enforcing 02's scheme | 02's receiver-shaped auth hand-off (token scheme, validation point — the deferred follow-up to `api-auth-design.md` noted in 02's own `CLAUDE.md` Status) | none outbound | Middleware implements the scheme as specified; no alternatives re-litigated in code | 23 | S4. Connector `/auth` + `/identity` | Go client + handlers per the assignment's fixed JSON contracts | 02's `connector-security.md` (token lifecycle: TTL, storage, refresh, never-persist-in-plaintext) | none outbound | Token-lifecycle logic matches 02's spec exactly; endpoint paths/bodies are the assignment's, not re-designed | 24 | S5. Tests | Table-driven unit tests for DAO (mocked driver), handlers (mocked DAO), connector (mocked HTTP) | S1–S4 outputs | none | Stated strategy: unit-heavy, integration deliberately stubbed (assignment doesn't require full end-to-end); documented, not silently absent | 25 | S6. README | What's implemented vs. stubbed/mocked and why; AI tool/workflow used (this plan's own hiring + patterns) | all of the above | the track's README | A cold reader can tell what runs vs. what's a stub without asking | 26 27 ## 2. Hire roster — 4 hires (suggested cast from `CASTING.md`, adopted as-is) 28 29 All four: **model sonnet** (planning/design/implementation tier per `planning-approach.md`; 30 opus is reserved for the connector token-lifecycle *implementation* seat in a later phase, not 31 planning — none of these four need it now). No hire spawns subagents; no CLAUDE.md marker; 32 profile-gen text-first, after "hiring go". 33 34 **Oren Castellan — Detail Hawk, code reviewer.** *Function:* second-pass review on DAO/handler/connector Go for error semantics, nullability, off-by-one — the review-seat Renata asked for on her own output, plus the independent pass 02 called for on security-graded surfaces. *Tags:* serious, cautious. *Pattern/role:* rotating devil's advocate seat (implementation calls); second-pass reviewer on S3/S4. 35 36 *Persona:* Meticulous and understated; in review he goes quiet, then produces a numbered list nobody else caught. Decides by tracing every input to its type and zero value before trusting a code path. Pushes back on "the happy path handles it" and on errors swallowed with `_`. Eight years reviewing Go services at a logistics company, two more doing contract review for a fintech's PCI-scoped repos. Deep in `go vet`/`staticcheck`, table-driven tests, and nil-vs-empty-slice distinctions. Blind spot: he can spend an hour on a rare nullability edge case while missing that the function solves the wrong problem — pair him with someone who checks the solution's shape first. In disagreement he stays procedural, names the specific line and failure, and drops it once satisfied. (129 words) 37 38 **Nolan Reyes — Veteran, ops/migrations/token-lifecycle sanity.** *Function:* pattern-matches implementation and layout decisions against real production failure modes; pessimist hat in the Go-layout three-hats run. *Tags:* serious, cautious. *Pattern/role:* three-hats pessimist (Go layout); rotating devil's advocate participant. 39 40 *Persona:* Dry and unhurried; opens reviews with what broke last time he saw this pattern in production. Decides from incident history more than documentation. Pushes back on any "this will just work" claim about retries, timeouts, or token refresh under load. Eleven years in platform ops — six at a regional bank's card-issuing platform, five running SRE for a logistics SaaS — paged once for an expired-token cascade and once for a migration that locked a table for forty minutes; never forgot either. Deep in Go's `context` package, connection pooling, and graceful shutdown. Blind spot: he over-indexes on failures he personally lived through and under-weights new ones. Argues by scenario, not principle, and concedes fast when shown a failure mode he hasn't seen. (134 words) 41 42 **Marisol Ferran — Enthusiast, Renata's temperament opposite (required).** *Function:* pushes for trying the promising-but-unproven tool (codegen, generics) rather than the safe default; optimist hat in three-hats. *Tags:* playful, bold. *Pattern/role:* three-hats optimist (Go layout); counterweight voice on S2's driver-abstraction choice. 43 44 *Persona:* Bright and quick to say "let's just try it" before the room finishes weighing options; energized by tools that remove boilerplate. Decides by prototyping fast and showing the result rather than arguing it abstractly. Pushes back on "we've always done it this way" and on process that delays the first line of code by a week. Four years building internal tools at a logistics startup, two more at a small dev-tools shop evaluating codegen and ORM options for clients. Comfortable with `sqlc`, Go generics, and OpenAPI-driven scaffolding. Blind spot: she underweights the years-long operational cost of a clever tool and can talk a team into a dependency nobody wants to own. In disagreement she stays upbeat, offers to build the smaller version on the spot, and yields once the maintenance cost is spelled out. (141 words) 45 46 **Ines Dabrowski — Systems Cartographer, Go layout / service topology.** *Function:* owns the diagramming behind the Service boundaries decision below; draws the package/dependency map before anyone commits to prose. *Tags:* serious, bold. *Pattern/role:* drafts the Service boundaries doc (§4); non-hat contributor to three-hats as tie-break if optimist/pessimist stall. 47 48 *Persona:* Calm and visual; sketches a box-and-arrow diagram before committing an opinion to words. Decides by mapping every boundary and dependency first, then asking what crosses it and why. Pushes back on two services sharing a package for convenience rather than a real shared concern. Seven years as a platform engineer at a multi-tenant SaaS company, three designing service boundaries for a payments integration team. Strong on Go module layout, dependency direction, and where an interface should live versus where it's implemented. Blind spot: she can over-abstract a boundary that would have been fine as one package at this project's size, mistaking cleanliness for necessity. In disagreement she draws the alternative rather than argues it, and updates the diagram in front of the room when persuaded. (135 words) 49 50 Roster spans both required axes (serious/playful via Marisol; cautious/bold via Ines and 51 Marisol), includes Renata's required opposite (Marisol), and duplicates no archetype from 52 another track's *function* (Detail Hawk here is a code reviewer; 05's Detail Hawk is a DDL 53 reviewer, a different function — allowed per variance rule 2). 54 55 ## 3. Debate plan 56 57 - **Three hats — Go layout (one binary vs. two).** Marisol (optimist: ship one binary, less 58 ceremony) / Callum (pessimist: two binaries, because a shared-everything binary is how a 59 card-issuing platform he worked on ended up with the connector's outbound vendor calls 60 taking down the client-facing API during an incident) / **Renata takes the pragmatist hat 61 herself** rather than hiring a fifth (catalog explicitly allows this) — she's the 62 Minimalist-leaning lead per `CASTING.md` §7. Ines drafts the resulting diagram either way. 63 Decision recorded in `decisions/go-layout-debate.md`. 64 - **Rotating devil's advocate — implementation calls.** Error semantics (wrap vs. sentinel 65 errors), context propagation into the DAO layer, test-double strategy (interface fakes vs. 66 generated mocks). Seat rotates Oren → Callum → Marisol → Ines per decision so no one hire 67 becomes "the objector." Cheapest pattern; run on every non-trivial implementation call in 68 S2–S4. 69 - **Newcomer's-question pass on hand-offs — run by Renata herself, not a hired Newcomer.** 70 This track wasn't allocated a Newcomer seat (04 has one; hiring a second here would exceed 71 the intent of a 4-hire cap for marginal gain). Renata reads 05's `multi-db-strategy.md` and 72 02's receiver-shaped hand-offs cold, the moment they land, and lists anything she can't act 73 on without re-deriving the sender's reasoning — same test the pattern exists to run, just 74 performed by the actual receiver instead of a proxy. 75 - **Explicit waste:** the `/auth` and `/identity` endpoint paths and JSON bodies are fixed by 76 the assignment text — never debated. Red team/blue team is 02's pattern for the token 77 lifecycle's security properties, not this track's to re-run; 03 only debates *how* it 78 implements what 02 specifies (error handling, retries), never *whether* the scheme is right. 79 80 ## 4. Dependencies (and the Service boundaries output for 04) 81 82 **Split start**, consistent with `planning-approach.md` §2: S1 (scaffolding) starts as soon as 83 hiring completes — no upstream blocker. S2 (DAO) is blocked on 05's Go-shaped contract landing 84 *stable* (not polished — unlikely to be rewritten). S3's middleware is blocked on 02's 85 receiver-shaped auth hand-off; S3's route wiring and non-auth handler logic can start earlier. 86 S4 is blocked on 02's `connector-security.md` token-lifecycle spec, which already exists in 87 prose form — implementable now, refined if 02's deferred receiver-shaped version changes 88 anything. 89 90 **Service boundaries (written into root `PLANNING.md` alongside this plan):** 91 92 - **Two binaries**, not one: `cmd/api-service` (Q1 DAO + Q2 REST API, client-facing, bearer- 93 token auth) and `cmd/idp-connector` (Q3, outbound-only to vendors). Reasoning: different 94 threat models and auth surfaces per 02's track, independent scaling/deploy needs, and it 95 mirrors the assignment's own Q2/Q3 split rather than inventing a new boundary. 96 - **Package layout:** 97 ``` 98 cmd/api-service/main.go 99 cmd/idp-connector/main.go 100 internal/dao/ # Repository interface + postgres/cockroachdb/sqlite implementations 101 internal/model/ # shared structs: UserProfile, UserCredential 102 internal/api/ # REST handlers, router, auth middleware 103 internal/connector/ # /auth, /identity client + handlers 104 internal/config/ # env-var config loading, shared by both binaries 105 ``` 106 - **Config surface:** environment variables only (12-factor, container-friendly for 04) — 107 `DB_DRIVER` (postgres|cockroachdb|sqlite), `DB_DSN`, `HTTP_ADDR`, `AUTH_JWT_ISSUER` / 108 `AUTH_JWT_AUDIENCE` (names pending 02's final scheme), `IDP_ABC_BASE_URL`, 109 `IDP_ABC_CLIENT_ID` / `IDP_ABC_CLIENT_SECRET`. No flags, no config files. 110 - **DAO driver-selection mechanism:** a factory `dao.New(driver, dsn string) (dao.Repository, error)` 111 chosen at startup from `DB_DRIVER`; every backend satisfies one `Repository` interface 112 (exact method signatures finalized once 05's contract lands — the factory *shape* is stable 113 now, its return type's method set is not). 114 - **What 04 may treat as stable:** the two-binary split, the `cmd/` entrypoint names, the 115 env-var config approach and the variable names above, and the `dao.New(driver, dsn)` factory 116 signature. **Not yet stable:** internal DAO implementation details, ORM/query-builder choice, 117 and handler-package internals — those can still shift as 05's and 02's hand-offs land. 118 119 ## Verification 120 121 - `PLAN.md` for this track matches this file verbatim once copied. 122 - `PLANNING.md` row 03 updated to "plan drafted — awaiting hiring go"; Service boundaries 123 section replaces its "TBD" with the content in §4 above. 124 - No `.go`, `.sql`, `go.mod`, or agent-definition files exist yet — only prose changed. 125 - Roster (4 hires) checked against `CASTING.md` variance rules before messaging team-lead: 126 no archetype repeated within this team; Renata's required opposite (Enthusiast) present; 127 two temperament axes spanned; no first name collides with any lead. 128
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}1 --- 2 schema_version: 1 3 name: "Oren Castellan" 4 slug: "oren-castellan" 5 image: "profiles/oren-castellan/oren-castellan.png" 6 7 nsfw: false 8 display: 9 image: true 10 name: true 11 autostart: false 12 generation: 13 backend: "comfyui" 14 model: "comfyui-workflow.json" 15 prompt: "Oren Castellan, a meticulous and understated man in his late 30s with short neat hair, wire-rim glasses, wearing a plain navy button-down shirt, calm focused expression, head-and-shoulders portrait, centered, neutral light gray studio background, professional corporate headshot photography, soft studio lighting, sharp focus, photorealistic" 16 negative_prompt: blurry, low quality, distorted, extra limbs, watermark, text, nsfw, nude, nudity, explicit, sexual content 17 seed: null 18 gif_mode: null 19 created_at: "2026-09-12T00:00:00Z" 20 --- 21 22 # Oren Castellan 23 24  25 26 27 ## Personality 28 29 Meticulous and understated; in review he goes quiet, then produces a numbered list nobody else caught. Decides by tracing every input to its type and zero value before trusting a code path. Pushes back on "the happy path handles it" and on errors swallowed with `_`. Eight years reviewing Go services at a logistics company, two more doing contract review for a fintech's PCI-scoped repos. Deep in `go vet`/`staticcheck`, table-driven tests, and nil-vs-empty-slice distinctions. Blind spot: he can spend an hour on a rare nullability edge case while missing that the function solves the wrong problem — pair him with someone who checks the solution's shape first. In disagreement he stays procedural, names the specific line and failure, and drops it once satisfied. 30 31
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"to": "renata-cole",
"content": "Oren here — read root CLAUDE.md, track CLAUDE.md, PLAN.md, and my profile. Clear on scope: second-pass reviewer on S3/S4 Go correctness (error semantics, nullability, off-by-one), rotating devil's-advocate seat on error semantics/context propagation/test-double strategy. No code until Warren's go-ahead. Holding for a specific task from you."
}<tool_use_error>Error: No such tool available: SendMessage. SendMessage is disabled for this session, in subagents as well as here.</tool_use_error>
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}1 # Decision: Error semantics (wrap vs. sentinel)
2
3 Pattern: rotating devil's advocate, decision 1 of 3 (seat: Oren Castellan). Proposer: Renata Cole.
4
5 ## Proposal
6
7 Go 1.13+ error wrapping (`fmt.Errorf("...: %w", err)`) for propagating unexpected/lower-level errors up the call stack, plus a small set of exported sentinel errors (`dao.ErrNotFound`, `dao.ErrDuplicate`) for conditions callers are expected to branch on via `errors.Is`.
8
9 ## Objections — Oren Castellan (Detail Hawk)
10
11 1. **Sentinel set must be closed and enumerated now**, not left open-ended — otherwise hires add ad hoc `ErrX` values across S2–S4 with no stable contract. Wants a fixed list plus a named owner and a propose-before-adding rule.
12 2. **Wrapped errors must never cross the HTTP boundary raw** — `err.Error()` on a wrapped DB error can leak driver text (DSN fragments, column/constraint names) to an API client. Wants an explicit translation function at the boundary; anything unmapped defaults to a generic 500 with no wrapped detail.
13 3. **`errors.Is` against a sentinel breaks silently if a backend returns a driver-native error instead** (e.g. `*pgconn.PgError` instead of `dao.ErrDuplicate`). Wants the `Repository` interface contract to state translation is *mandatory* per backend, verified by an S5 test case per backend.
14 4. **No stated rule for `context.DeadlineExceeded`/`context.Canceled`.** These aren't ordinary internal errors and shouldn't page as generic 500s. Wants them checked and mapped to a distinct response code before generic wrapping applies.
15
16 ## Ruling (Renata Cole)
17
18 All four accepted; no decline.
19
20 1. Sentinel set is closed and fixed now: `dao.ErrNotFound`, `dao.ErrDuplicate`, `dao.ErrInvalidInput`. Defined once in `internal/dao`. Rule: no hire adds a sentinel unilaterally — propose it to me with the one-line reason, I add it. This applies for the rest of the design/implementation phase.
21 2. `internal/api` never serializes `err.Error()` on an unmapped error. A translation function (`internal/api` boundary layer) maps the three sentinels to their HTTP status/safe message; anything else defaults to a generic 500 with no wrapped detail surfaced to the client. Wrapped errors are for logs only.
22 3. The `Repository` interface contract states translation of known driver-native errors to the shared sentinels is **mandatory**, not optional, per backend implementation. S5's test strategy gets an explicit line item: one test per backend proving the translation happens (e.g., a unique-constraint violation surfaces as `dao.ErrDuplicate`, not a raw driver type).
23 4. `context.DeadlineExceeded` and `context.Canceled` are checked explicitly and mapped to a distinct response (504 for deadline exceeded; treat client-cancel as a non-alerting outcome, not logged as a 500) before generic wrapping/translation applies.
24
25 ## Status
26
27 Ruled. Carries into S2 (DAO sentinel definitions + per-backend translation) and S3 (handler-layer translation function, context-error handling).
28
29 ## Superseded in part — 05's contract lands (2026-09-12)
30
31 05's `multi-db-strategy.md` §4 is the authoritative sentinel set and translation mechanism for the DAO layer; it supersedes the specific names and the translation rule this decision guessed at before the contract existed. What stands vs. what's replaced:
32
33 - **Replaced:** the invented sentinel set (`ErrNotFound`/`ErrDuplicate`/`ErrInvalidInput`) is superseded by 05's actual seven: `ErrNotFound`, `ErrAlreadyExists`, `ErrDuplicateUsername`, `ErrInvalidMethod`, `ErrInvalidQuery`, `ErrInvalidArgument`, `ErrInvalidCredential`. These are 05's to own and extend (own-and-propose-before-adding now routes through them, not me, for anything DAO-internal) — my closed-set/no-ad-hoc-additions principle still applies, just to their list.
34 - **Replaced:** "match SQLSTATE only" is superseded by 05's corrected rule — match structured error codes (SQLSTATE on Postgres/CockroachDB, extended result codes on SQLite) plus constraint names we define ourselves in DDL, never free-text messages. This is a more complete version of objection 2's concern (leaking driver text), not a contradiction of it.
35 - **Stands unchanged:** the HTTP-boundary rule (objection 2 — `internal/api` never serializes `err.Error()` on an unmapped error; wrapped errors are for logs only) — this is 03's layer, not 05's, and 05's contract doesn't touch it. The context-cancellation rule (objection 4) also stands unchanged, same reason.
36 - **Stands, now backed by a real mechanism instead of a guess:** objection 3's demand for mandatory per-backend translation — 05's contract §4 gives the actual mapping table (condition → PG/CRDB code → SQLite code → sentinel), and §7's conformance suite makes "sentinel parity for every error condition in §4" a stated, required test — stronger than what this decision asked for.
37
38 ---
39 Model: sonnet (Oren Castellan, objection seat; Renata Cole, lead, proposer + ruling). Turns consumed: 1 hire turn + lead synthesis.
40 {
"file_path": "/Users/warrenthompson/Source/LoginID/03-engineering-delivery/decisions/context-propagation.md"
}1 # Decision: Context propagation into the DAO layer 2 3 Pattern: rotating devil's advocate, decision 2 of 3 (seat: Nolan Reyes). Proposer: Renata Cole. 4 5 ## Proposal 6 7 Every `Repository` method (and its three sub-interfaces — `Profiles`/`Credentials`/`Methods`) takes `context.Context` as its first argument, propagated unbroken from the HTTP request through the handler into every DB call, so request cancellation/timeout actually cancels in-flight queries. 8 9 ## Objections — Nolan Reyes (Veteran) 10 11 Agreed with the direction but pushed on three failure modes from production experience: 12 13 1. **Cancellation racing a multi-statement write.** A cancelled `SELECT` aborts cleanly; a cancelled multi-statement write (e.g., profile + credential saved together) risks a half-written row unless cancellation is scoped to a transaction, not a statement. Cited a migration job killed mid-batch by a deploy SIGTERM, leaving orphaned rows because cancellation was handled per-statement. 14 2. **Deadline budget, not a boolean.** Unbroken propagation means an inherited, already-partially-consumed deadline reaches the DAO call. If upstream work (e.g., a connector call) already burned most of the HTTP handler's timeout, the DAO gets a shrinking remainder and starts timing out under *normal* latency, not just failure — the good case starts looking like the bad case. 15 3. **Sub-interfaces are not uniformly cancel-safe.** Credential writes during auth are exactly the path that caused a real incident: a retry re-issued a credential write against an already-expired derived context and silently no-op'd instead of erroring. Wants explicit naming of which write paths deliberately detach from the inbound context (via `context.WithoutCancel` or a fresh background context) for durability, distinct from read paths that don't need it. 16 17 ## Ruling (Renata Cole) 18 19 All three accepted; no decline. 20 21 1. Any `Repository` method that writes to more than one table (e.g., a profile+credential save) runs inside a single `Tx`. Context cancellation during that transaction triggers `Tx.Rollback`, never a partial commit — this is a stated requirement on the `Repository` implementation contract, not left to each backend's discretion. 22 2. Deadline propagation is a budget-allocation decision, stated explicitly in S3's middleware design: the HTTP-boundary timeout must be sized to cover realistic p99 DAO latency *plus* any upstream work (e.g., no DAO call should ever be handed a near-zero remaining deadline as a matter of routine operation). This gets a concrete number attached when S3's middleware design is written, not left as "some deadline." 23 3. Credential writes and any token-persistence write are named explicitly as the paths that use `context.WithoutCancel` (or an equivalent fresh background context with its own bounded timeout) for the actual commit — distinct from profile reads and other cancel-safe paths, which propagate the inbound context unmodified. This distinction is documented at the point each such method is implemented, not left implicit. 24 25 ## Status 26 27 Ruled. Carries into S2 (Repository implementation contract: transaction scoping, detach points) and S3 (middleware deadline budget). 28 29 --- 30 Model: sonnet (Nolan Reyes, objection seat; Renata Cole, lead, proposer + ruling). Turns consumed: 1 hire turn + lead synthesis. 31
{
"file_path": "/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md"
}1 # Multi-Database Abstraction Strategy
2
3 Owner: 05-data-ops. Implemented by: `03-engineering-delivery`, from the prose contract below — this project is still in planning phase, so the interface and schema exist here as design, not as `.go`/`.sql` files, until there's an explicit go-ahead to write code. Full research trail: `research-data-ops-best-practices.md`.
4
5 ## The interface contract (prose, not code)
6
7 Three repository interfaces, one per entity, each implemented by two backend packages (below) and never containing SQL themselves — the service layer depends only on these shapes:
8
9 - **`ProfileRepository`** — `Get(ctx, id) (*UserProfile, error)`; `Search(ctx, query) (results []UserProfile, total int, error)` where `query` filters by name (partial/fuzzy), phone (exact/prefix), region, country, plus limit/offset for pagination; `Create(ctx, *UserProfile) (*UserProfile, error)`; `Update(ctx, *UserProfile) (*UserProfile, error)` implemented as a portable upsert; `Delete(ctx, id) error`.
10 - **`CredentialRepository`** — `GetByUsername(ctx, username) (*UserCredential, error)` as the primary auth lookup path; `ListByUserID(ctx, userID) ([]UserCredential, error)`; `Create`, `Update`, `Delete` mirroring `ProfileRepository`'s shape. Never accepts or returns `UserProfile` fields.
11 - **`AuthMethodRepository`** — `Get(ctx, id)`, `GetByName(ctx, name)`, `List(ctx, activeOnly bool)`. Read-heavy; writes to this table are an operational action (adding a supported method), not part of the normal request path.
12
13 Domain types implied by the above: `UserProfile` (`ID`, `Name`, `Phone`, `StreetAddress`, `Locality`, `Region`, `PostalCode`, `Country`, `Source` — `"direct"` or `"idp_cache"` — `CreatedAt`, `UpdatedAt`); `UserCredential` (`ID`, `UserID` FK, `Username` unique, `MethodID` FK, `Secret` as bytes/nil, `HashAlgo`, `HashCost`, `CreatedAt`, `UpdatedAt`); `AuthMethod` (`ID`, `Name`, `RequiresSecret` bool, `IsActive` bool). A shared `ErrNotFound` sentinel is returned by every backend implementation for a missing row, so the service layer never has to distinguish `sql.ErrNoRows` from a SQLite-specific miss.
14
15 Two concrete implementations satisfy all three interfaces:
16
17 - `postgres` package — serves both PostgreSQL and CockroachDB from one implementation. They share enough of the wire protocol and SQL surface that a second implementation would be duplicated effort — **but that is only half the argument, and the half that was originally stated here was the cheap half.** Sourced in `research-cockroachdb-postgres-semantics.md`: CockroachDB defaults to SERIALIZABLE and returns client-retryable `40001` errors that PostgreSQL at READ COMMITTED never emits, and constraint-violation error *text* is not portable between them. One package serves both **only if it carries an explicit engine-aware retry-and-error seam** (see the contract's error semantics and write-path sections). It cannot be a thin PostgreSQL implementation pointed at a second connection string.
18 - `sqlite` package — a separate implementation. SQLite diverges enough (no native UUID/BOOLEAN, no trigram index, app-side ID generation) that forcing it through the Postgres implementation would mean littering that code with backend conditionals, which is the exact failure mode a repository-per-backend split is meant to avoid.
19
20 The service layer depends only on the interfaces and is constructed with whichever concrete implementation the startup config names. Backend choice is a wiring decision, never a runtime branch inside business logic.
21
22 ## Why not one implementation with dialect branches
23
24 **Corrected 2026-09-12 after the three-hats run — full reasoning in `decisions/multi-db-abstraction.md`.** This section previously rejected dialect branches as "`if backend == \"sqlite\"` scattered through query construction." That describes a schema we do not have. Of the six concerns in the dialect table below, exactly **two** survive as real conditionals — app-side PK generation for SQLite, and fuzzy name search. Placeholders are the driver's problem, upsert syntax is identical across all three, JSON is unused, booleans map at the boundary. It is two `if`s, not a scattering.
25
26 The two options therefore cost roughly the same, and the choice between them is made on **reviewability, not cost**: two parallel implementations a reviewer can diff against each other read better than one file with two apologetic conditionals, and this submission is graded on design reasoning. That is a legitimate tiebreak, and it is stated as what it is — a reviewer who counts the conditionals finds the discrepancy in seconds, and claiming a cost advantage that does not exist would be worse than claiming nothing.
27
28 The real risk of the chosen shape is **silent behavioural divergence**: the interface guarantees both packages compile, not that they behave alike, and the failure mode produces no error, just different results. See the conformance-suite requirement in the contract below — the ruling is conditional on it.
29
30 ## Dialect differences that survive into the DAO layer
31
32 | Concern | Postgres / CockroachDB | SQLite | Handling |
33 |---|---|---|---|
34 | Primary key | `UUID DEFAULT gen_random_uuid()`, server-generated | `TEXT`, app-generated before insert | DAO layer generates the UUID in Go for SQLite; server-generates for Postgres/CockroachDB. Callers never see the difference — `Create()` returns the populated `ID` either way. |
35 | Placeholders | `$1, $2, ...` | `?` | Handled by the driver/query builder, not hand-rolled per query. |
36 | Upsert | `INSERT ... ON CONFLICT (id) DO UPDATE SET ...` | Same syntax, supported since SQLite 3.24 | One query shape used everywhere. CockroachDB's `UPSERT` shorthand is deliberately not used, to avoid a second query dialect. |
37 | Fuzzy name search | `pg_trgm` GIN expression index on `LOWER(name)`, native on both Postgres and CockroachDB | No native equivalent; `LIKE` scan | **Corrected 2026-09-12 — see `decisions/multi-db-abstraction.md`.** This was previously described as a pure performance gap, on the claim that `Search()` "behaves identically from the caller's side". That was false: SQLite's `LIKE` is case-insensitive for ASCII by default, Postgres's is case-sensitive, so the same search returned *different row sets* per backend with no error. The contract now folds case explicitly on both sides (`LOWER(col) LIKE LOWER(pattern)`), which closes it for ASCII input. Residual, accepted and named: Postgres `lower()` is locale-aware, SQLite's is ASCII-only, so non-ASCII folding still diverges. |
38 | JSON | `JSONB`, indexable, has query operators | `TEXT`/`BLOB` with a differently-formatted internal `JSONB` (SQLite 3.45+) that is not disk-compatible with Postgres's | Not currently used in the reference schema. If a raw IDP `/identity` payload is ever cached, it is stored as opaque `TEXT` at the DAO boundary — no JSON-operator filtering pushed into either implementation, so the column stays portable. |
39 | Boolean | Native `BOOLEAN` | `INTEGER` 0/1 | Mapped at the DAO boundary; Go `bool` on both sides of the interface. |
40
41 ## Schema shape (prose, not DDL)
42
43 `auth_method` — lookup table, not a native enum: `id` (UUID), `name` (unique — `"password"`, `"passkey"`, `"otp"`, `"oidc"`, ...), `requires_secret` (bool, false for passkey/WebAuthn-style methods), `is_active` (bool), `created_at`. Seeded with one `"password"` row; new methods are inserted as data, never a migration.
44
45 `user_profile` — pure PII, no secrets: `id` (UUID PK), `name`, `phone` (normalized E.164 at write time), `street_address`, `locality`, `region`, `postal_code`, `country` (ISO 3166-1 alpha-2), `source` (`"direct"` or `"idp_cache"`, constrained), `created_at`, `updated_at`.
46
47 `user_credential` — this system's own login credentials, no PII: `id` (UUID PK), `user_id` (FK → `user_profile.id`, cascade delete), `username` (unique), `method_id` (FK → `auth_method.id`), `secret` (nullable, salted hash only, never plaintext), `hash_algo`, `hash_cost`, `created_at`, `updated_at`.
48
49 Indexes: B-Tree on `user_profile.phone`; trigram GIN on `user_profile.name` (Postgres/CockroachDB only); unique on `user_credential.username`; FK indexes on `user_credential.user_id` and `.method_id`.
50
51 Primary keys are UUID everywhere — server-generated (`gen_random_uuid()`) on Postgres/CockroachDB, app-generated in Go before insert on SQLite (which has no native UUID type). One PK strategy across backends, no per-backend branch in the DAO.
52
53 ## Migration approach
54
55 - One shared SQL migration series covers the base schema (`CREATE TABLE`, standard column types, the portable upsert-compatible constraints) since it's close enough across all three backends for this schema's scope.
56 - A small, explicitly-named set of per-backend override files covers what genuinely can't be shared — currently exactly one: the `pg_trgm` GIN index on `user_profile.name`, which has no SQLite equivalent and is simply omitted there rather than faked.
57 - Recommended tool: **goose** — plain-SQL-first, minimal dependencies, and its style fits "mostly shared, occasionally per-backend" files more naturally than golang-migrate's stricter up/down pairing. golang-migrate is an equally defensible choice if the engineering track already has tooling preferences; Atlas is worth naming as the more sophisticated schema-as-state alternative but is more than this take-home's scope needs.
58 - Migration files live under version control alongside the DAO code (`03-engineering-delivery` owns the pipeline that runs them — see `../04-infra-devops/CLAUDE.md` for where/how they're actually executed in CI/CD).
59
60 ## What the engineering track should take from this
61
62 1. Implement `ProfileRepository`, `CredentialRepository`, `AuthMethodRepository` per the interface contract above, once there's a go-ahead to write code — don't redesign the contract, flag back to this track if it doesn't fit.
63 2. Two packages: `postgres` (serves Postgres + CockroachDB) and `sqlite`. No third implementation needed unless a fourth backend is added to the assignment.
64 3. Use the schema shape above as the starting migration content for both backend families.
65 4. Never let `UserCredential` and `UserProfile` fields mix in either implementation, even as an internal convenience struct — that boundary is a governance control (see `pii-governance.md`), not just a modeling choice.
66
67 ---
68
69 # The Go-shaped contract — the 05→03 hand-off
70
71 *(Story S1 in `./PLAN.md`: the DAO interface and schema contract. Where this document says S2 it means the `Search()` query-shape ruling, `decisions/search-query-shape.md`; S3 means the multi-database abstraction ruling, `decisions/multi-db-abstraction.md`.)*
72
73 **Status: stable.** Stable means unlikely to be rewritten, not polished — per `../02-ai-security-architecture/planning-approach.md` §2, 03 should start against this rather than wait. Written to the project's hand-off standard: **03 should be able to implement this without re-deriving my reasoning.** Where a decision has a rationale 03 might otherwise re-litigate, the rationale is here; where something is deliberately out of 03's scope, §6 says so and says why.
74
75 Everything below is Go-*shaped* prose inside a markdown file. No `.go` or `.sql` files exist or should exist until Warren's explicit go-ahead.
76
77 **Vocabulary used below, defined once here** (added after a cold read found every one of these assumed rather than explained):
78
79 - **SQLSTATE** — the five-character error code PostgreSQL returns for every error (`23505` = unique violation, `23503` = foreign-key violation, `23514` = CHECK-constraint violation, `40001` = serialization failure). CockroachDB implements the same table. **SQLite does not have SQLSTATE at all** — it returns extended result codes such as `SQLITE_CONSTRAINT_UNIQUE`. This asymmetry matters in §4.
80 - **GIN / `gin_trgm_ops`** — a PostgreSQL index type suited to "does this text contain that fragment" searches, and the operator class that makes it work on trigrams (three-character fragments). Together they make `LIKE '%smith%'` use an index instead of scanning every row.
81 - **`COLLATE "C"`** — tells the database to compare text by raw byte value rather than by language-aware alphabetical rules. Byte order sorts all uppercase before all lowercase; a locale-aware order does not. Picking one explicitly is what makes two different engines agree.
82 - **SERIALIZABLE / READ COMMITTED** — transaction isolation levels. SERIALIZABLE is stricter and can force the database to reject a transaction that would produce an inconsistent result, asking the client to retry.
83 - **`crdb.ExecuteTx`** — a helper from CockroachDB's official Go library that runs a transaction and automatically retries it when the database returns the retryable `40001` error. There is no PostgreSQL equivalent because PostgreSQL at its default isolation level does not produce that error.
84
85 Inputs that produced it: `decisions/search-query-shape.md` (S2), `decisions/multi-db-abstraction.md` (S3), `research-cockroachdb-postgres-semantics.md`, and a direct two-party agreement with 03 on the factory shape (below).
86
87 ## 1. The factory and the composite
88
89 Agreed directly with Renata Cole (03) on 2026-09-12. **Her `dao.New` signature is unchanged**; the composite is the resolution of what had been a silent mismatch between her single `Repository` return type and this track's three interfaces.
90
91 ```go
92 func New(driver, dsn string) (Repository, error) // driver: "postgres" | "cockroachdb" | "sqlite"
93
94 type Repository interface {
95 Profiles() ProfileRepository
96 Credentials() CredentialRepository
97 Methods() AuthMethodRepository
98 Close() error
99 }
100 ```
101
102 `Repository` stays an **interface**, not a struct with exported fields — Renata's reason, which is better than either I offered: an interface is mockable for her test strategy. The three accessors stay distinct rather than flattening into one interface because that separation is a governance control (`pii-governance.md`), not a modelling preference: a call site must reach for the credential accessor deliberately rather than find profile and credential methods side by side on one value.
103
104 `"postgres"` and `"cockroachdb"` both select the `postgres` package. They are distinct driver strings rather than one because the retry seam in §4 needs to know which engine it is talking to.
105
106 ## 2. Domain types
107
108 ```go
109 type UserProfile struct {
110 ID string // UUID
111 Name string // required, never empty
112 Phone *string // nil if unknown; E.164 when present
113 StreetAddress *string
114 Locality *string
115 Region *string
116 PostalCode *string
117 Country *string // ISO 3166-1 alpha-2, upper-case
118 Source string // "direct" | "idp_cache"
119 CreatedAt time.Time
120 UpdatedAt time.Time
121 }
122
123 type UserCredential struct {
124 ID string // UUID
125 UserID string // FK -> user_profile.id
126 Username string // unique, case-folded
127 MethodID string // FK -> auth_method.id
128 Secret []byte // nil unless SecretState == SecretSet
129 SecretState string // "none" | "set" | "revoked"
130 HashAlgo *string // non-nil iff SecretState == "set"
131 HashCost *int // non-nil iff SecretState == "set"
132 CreatedAt time.Time
133 UpdatedAt time.Time
134 }
135
136 type AuthMethod struct {
137 ID string
138 Name string // "password", "passkey", "otp", "oidc", ...
139 RequiresSecret bool
140 IsActive bool
141 CreatedAt time.Time
142 }
143 ```
144
145 **Pointers mean "absent", never "empty".** No field in this contract uses the empty string to mean absent. A `*string` that is non-nil and empty is invalid input, not a value — see §5.
146
147 **Who owns `ID`, `CreatedAt` and `UpdatedAt`: the DAO, always.**
148
149 - On `Create`, the caller leaves `ID` as `""`. The DAO generates the UUID (in Go for SQLite, server-side elsewhere) and returns the populated struct. **A non-empty `ID` passed to `Create` is a caller error and returns `ErrInvalidArgument`** — it is not a request to use that ID. This removes the contradiction a cold read found between "callers never see the difference" and `Create` returning `ErrAlreadyExists` "if the ID is taken": for profiles, the ID cannot be taken, because the caller never chooses it.
150 - `CreatedAt` and `UpdatedAt` are set by the DAO on every write and ignored on input. `UpdatedAt` is touched by `Create`, `Update`, and `Upsert` — including IDP re-hydration, which is load-bearing for retention (`pii-governance.md`).
151
152 **`SecretState` is new and is the fix for a real defect.** The previous prose said `secret` was "nullable, salted hash only" and stopped. Yusuf Karadag's review found that at least three distinct states were collapsing into one null — the method requires no server-held secret (passkey/WebAuthn, where the private key is client-side), the secret is not yet set, or the secret was revoked — and that `auth_method.requires_secret` was consequently load-bearing on nothing. An explicit state column makes the three distinguishable and gives `requires_secret` something to be checked against.
153
154 ## 3. The interfaces
155
156 ```go
157 type ProfileRepository interface {
158 Get(ctx context.Context, id string) (*UserProfile, error)
159 Search(ctx context.Context, q ProfileQuery) (results []UserProfile, total int, err error)
160 Create(ctx context.Context, p *UserProfile) (*UserProfile, error)
161 Update(ctx context.Context, p *UserProfile) (*UserProfile, error)
162 Upsert(ctx context.Context, p *UserProfile) (*UserProfile, error)
163 Delete(ctx context.Context, id string) error
164 }
165
166 type CredentialRepository interface {
167 GetByUsername(ctx context.Context, username string) (*UserCredential, error)
168 ListByUserID(ctx context.Context, userID string) ([]UserCredential, error)
169 Create(ctx context.Context, c *UserCredential) (*UserCredential, error)
170 Update(ctx context.Context, c *UserCredential) (*UserCredential, error)
171 Delete(ctx context.Context, id string) error
172 }
173
174 type AuthMethodRepository interface {
175 Get(ctx context.Context, id string) (*AuthMethod, error)
176 GetByName(ctx context.Context, name string) (*AuthMethod, error)
177 List(ctx context.Context, activeOnly bool) ([]AuthMethod, error)
178 }
179
180 type ProfileQuery struct {
181 Name *string // case-folded substring match; caller input escaped by the DAO
182 Phone *string // EXACT match on the E.164-normalized value (not prefix)
183 Region *string // case-folded exact match
184 Country *string // exact match, alpha-2, upper-cased by the DAO
185 Limit int // 1..100; 0 means "use default 50", deliberately
186 Offset int // 0..10_000
187 }
188 ```
189
190 ### `Search` semantics carried over from the S2 ruling
191
192 These were settled in `decisions/search-query-shape.md` and were missing from the first draft of this contract — the intent-versus-text gap a cold read was run to find.
193
194 - **`total` is the count of ALL rows matching the filters, ignoring `Limit` and `Offset`** — not the number of rows on this page. Exact, not estimated, computed by a second `COUNT(*)` outside any wrapping transaction, so under concurrent writes it may disagree with the page by a row. **`total` is a magnitude, not a promise of reachability**: it can legitimately exceed what the `Offset` ceiling of 10 000 allows a caller to page to.
195 - **An all-nil `ProfileQuery` is l
… truncated (20 KB cap){
"command": "grep -n \"3c\\|DeleteExpired\\|DeleteProfile\\|SweepResult\\|RetentionClass\\|deletion_log\\|reason_code\" /Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md /Users/warrenthompson/Source/LoginID/05-data-ops/pii-governance.md 2>/dev/null"
}/Users/warrenthompson/Source/LoginID/05-data-ops/pii-governance.md:35:| `deletion_log` (the audit trail itself) | `deleted_at` — the entry's own timestamp | **Proposed, pending ruling — see basis** | **unknown — needs a legal ruling, and this cell is the point.** The log exists to evidence that a deletion happened, which is only useful for as long as someone may ask. That period is a legal question about limitation windows and regulator expectations, not an engineering one, and no engineering rationale can substitute for it. Note the trap: the log is PII-free by construction, so it is *not* itself subject to the storage-limitation clock the other rows answer to — which means nothing forces a window on it, and "keep it forever" is the path of least resistance rather than a decision | Hard delete of expired entries | Nothing — no FK, by design | unknown — needs product/legal ruling | **Proposed** |
/Users/warrenthompson/Source/LoginID/05-data-ops/pii-governance.md:51:| **Bulk retention sweep** (scheduled) | `source` = the class, plus that class's clock older than that class's window; orphan class additionally requires no referencing credential. **One class per pass — never a mixed-class sweep**, because a single predicate spanning two clocks is how the wrong window gets applied to the wrong rows | Many rows | Cascade delete, implicit and unmentioned in the predicate — the sweep selects profiles and destroys credentials as a side effect. Stated because it is invisible at the point of use | **Hard delete** | One row in a separate `deletion_log`: profile UUID, `source`, `deleted_at`, reason `retention_sweep`, job run id. **No name, phone or address** | Schedule it; run it per class; emit the metrics below | **Nothing errors.** No exception, no alert, no symptom — rows accumulate and the policy is fiction nobody can see is fiction |
/Users/warrenthompson/Source/LoginID/05-data-ops/pii-governance.md:52:| **Subject-deletion request** | Exactly one profile id, resolved from the subject's identifier *before* the job runs — resolution is a lookup, not part of the deletion predicate | One profile plus its cascade | Cascade delete — the correct reading of "delete my data" | Hard delete, **same code path as the sweep** | Same `deletion_log` row, reason `subject_request`, plus the external request reference | An operator-invocable path that is **not** "someone runs SQL by hand against production" | Legal exposure rather than silent drift — this one gets noticed, which is why it must not be the only mechanism that works |
/Users/warrenthompson/Source/LoginID/05-data-ops/pii-governance.md:59:**Why the `deletion_log` holds no PII.** Otherwise the log is just a second copy of the problem with no clock on it. The retained UUID identifies a row that no longer exists and is not linkable to a person once the profile is gone.
/Users/warrenthompson/Source/LoginID/05-data-ops/pii-governance.md:65:`multi-db-strategy.md` §3c now defines, on the composite: **`DeleteExpired(ctx, class, olderThan) (SweepResult, error)`** — one retention class per call, using that class's own clock column, cascading to credentials and writing a `deletion_log` row in the same transaction — and **`DeleteProfile(ctx, id, reason, externalRef)`** for subject requests, on the same code path. `SweepResult` carries rows examined, rows deleted and the age of the oldest surviving row, which is the health check below.
/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md:103: // Retention and deletion. Both write deletion_log in the SAME transaction
/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md:104: // as the delete. See §3c.
/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md:105: DeleteExpired(ctx context.Context, class RetentionClass, olderThan time.Time) (SweepResult, error)
/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md:106: DeleteProfile(ctx context.Context, id, reason string, externalRef *string) error
/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md:251:## 3c. Retention and deletion — added after the consistency pass (F21)
/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md:253:`pii-governance.md` specifies a bulk retention sweep and a subject-deletion request sharing **the same code path**, each writing a `deletion_log` row, and §5 of this contract defines that table. **None of it was reachable from the interface.** There was no sweep method, no log method, `Profiles().Delete` wrote no log row, and §3 forbids 03 from opening a transaction to combine the two — so a policy this track ruled on could not be implemented against the contract this track wrote, and no track owned the gap. Found by the cross-track consistency pass, not by any of this track's four reviewers, because every one of them was scoped to a single document and the contradiction lived between two.
/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md:255:Both methods sit on the **composite**, for the same reason as `CreateProfileWithCredential`: they span `user_profile` and `deletion_log`, and the DAO is the only layer permitted to open a transaction.
/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md:258:type RetentionClass string // "direct" | "idp_cache" | "idp_cache_orphan"
/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md:260:type SweepResult struct {
/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md:267:**`DeleteExpired(ctx, class, olderThan)`** — one class per call, never a mixed-class predicate, because a single predicate spanning two clocks is how the wrong window gets applied to the wrong rows. The clock column is the class's own: `updated_at` for `direct` and `idp_cache`, **`created_at` for `idp_cache_orphan`** — a clock the read path touches would let an orphan reset its own expiry and never die. Each deleted profile cascades to its credentials and writes one `deletion_log` row with reason `retention_sweep`, in the same transaction as the delete.
/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md:269:`SweepResult` returns the three metrics `pii-governance.md` requires, and **`OldestSurvivingAt` is the load-bearing one**: it is the only signal that detects a silently stopped sweep, because rows-deleted cannot distinguish a broken sweep from a legitimately empty one — both report zero. Returning it from the DAO rather than leaving 04 to compute it is deliberate: the DAO is the only layer that can answer it in the same query plan as the sweep.
/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md:271:**`DeleteProfile(ctx, id, reason, externalRef)`** — subject-deletion and any other deliberate single-profile removal. Writes the `deletion_log` row with the given reason (`subject_request`) and optional external reference, in the same transaction. `reason` is validated against the `ck_deletion_log_reason` constraint and returns `ErrInvalidArgument` otherwise.
/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md:297:`DeleteExpired` and `DeleteProfile` (§3c) are not in the table above: both are composite-level, both write `deletion_log` in the same transaction as the delete, both return `ErrInvalidArgument` on a bad class or reason, and `DeleteExpired` returns counts rather than rows. `CreateProfileWithCredential` (§3b) is likewise not in it because it spans two rows: IDs DAO-generated for both, `c.UserID` ignored on input and set from the created profile, both timestamps DAO-set, and on failure neither row exists.
/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md:423:### `deletion_log`
/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md:432:| `reason` | `string` | `TEXT` | `TEXT` | NOT NULL | `CHECK (reason IN ('retention_sweep','subject_request'))`, named `ck_deletion_log_reason` |
/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md:464:11. **`deletion_log` carries no PII.** It exists to prove a deletion happened after the row is gone; a log containing the name and address of everyone whose data was deleted would be the retention policy's own failure mode wearing an audit trail's clothes. `profile_id` deliberately has no FK, because the row it names is meant not to exist. *Enforcement: the column set in §5, plus a conformance test asserting no PII-shaped column exists on the table.*{
"file_path": "/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md",
"offset": 240,
"limit": 65
}240
241 That orphan is the same failure class as the orphaned IDP cache row in `pii-governance.md`: a PII-bearing row nothing references, governed by a retention clock written for a different case. Discovering it during implementation would have meant either an orphan-producing registration flow or 03 improvising the transaction the contract forbids.
242
243 **Ruling: the DAO supplies the transaction, because the DAO is the only layer allowed to open one.**
244
245 - It lives on the **composite**, not on either sub-repository — it spans both tables, and putting it on `CredentialRepository` would breach §6.1 (that interface still never accepts or returns a `UserProfile`; the composite is a different type and the separation is intact).
246 - Both rows are written in one transaction, and on CockroachDB the whole transaction runs inside the retry seam (§4).
247 - IDs are DAO-generated for both, as everywhere else. `c.UserID` is ignored on input and set from the profile the DAO just created — a caller cannot supply a mismatched pair.
248 - Errors: any of `Credentials().Create`'s errors, plus `ErrInvalidArgument`. On any failure **neither row exists**.
249 - This is the *only* cross-table operation in the contract, and it stays that way. A second one is a change to this contract, not an implementation decision.
250
251 ## 3c. Retention and deletion — added after the consistency pass (F21)
252
253 `pii-governance.md` specifies a bulk retention sweep and a subject-deletion request sharing **the same code path**, each writing a `deletion_log` row, and §5 of this contract defines that table. **None of it was reachable from the interface.** There was no sweep method, no log method, `Profiles().Delete` wrote no log row, and §3 forbids 03 from opening a transaction to combine the two — so a policy this track ruled on could not be implemented against the contract this track wrote, and no track owned the gap. Found by the cross-track consistency pass, not by any of this track's four reviewers, because every one of them was scoped to a single document and the contradiction lived between two.
254
255 Both methods sit on the **composite**, for the same reason as `CreateProfileWithCredential`: they span `user_profile` and `deletion_log`, and the DAO is the only layer permitted to open a transaction.
256
257 ```go
258 type RetentionClass string // "direct" | "idp_cache" | "idp_cache_orphan"
259
260 type SweepResult struct {
261 RowsExamined int
262 RowsDeleted int
263 OldestSurvivingAt *time.Time // nil when the class is empty
264 }
265 ```
266
267 **`DeleteExpired(ctx, class, olderThan)`** — one class per call, never a mixed-class predicate, because a single predicate spanning two clocks is how the wrong window gets applied to the wrong rows. The clock column is the class's own: `updated_at` for `direct` and `idp_cache`, **`created_at` for `idp_cache_orphan`** — a clock the read path touches would let an orphan reset its own expiry and never die. Each deleted profile cascades to its credentials and writes one `deletion_log` row with reason `retention_sweep`, in the same transaction as the delete.
268
269 `SweepResult` returns the three metrics `pii-governance.md` requires, and **`OldestSurvivingAt` is the load-bearing one**: it is the only signal that detects a silently stopped sweep, because rows-deleted cannot distinguish a broken sweep from a legitimately empty one — both report zero. Returning it from the DAO rather than leaving 04 to compute it is deliberate: the DAO is the only layer that can answer it in the same query plan as the sweep.
270
271 **`DeleteProfile(ctx, id, reason, externalRef)`** — subject-deletion and any other deliberate single-profile removal. Writes the `deletion_log` row with the given reason (`subject_request`) and optional external reference, in the same transaction. `reason` is validated against the `ck_deletion_log_reason` constraint and returns `ErrInvalidArgument` otherwise.
272
273 **This supersedes `Profiles().Delete` for anything governed by retention.** `Profiles().Delete(ctx, id)` remains for ordinary application deletes and still writes **no** log row — deliberate, because a log of every incidental delete is not an audit trail, it is noise with PII-adjacent identifiers in it. If that distinction proves wrong in implementation, flag it rather than making `Delete` log.
274
275 **Neither method is a "third cross-table operation" loophole.** These two plus `CreateProfileWithCredential` are the complete set; a fourth is a change to this contract.
276
277 ## 3a. Per-method summary — read this row before writing that method
278
279 Added after a cold read observed that this document is organized by *artifact* (factory, types, interfaces, errors, schema) while an implementer works by *verb* — so answering "I am about to write `Create`, what do I need?" meant holding five sections open at once. Four of that read's fourteen blocking questions existed only because a method's full story was never assembled in one place. This table closes them by construction; the prose above remains the authority where they disagree.
280
281 | Method | Caller supplies `ID`? | Timestamps | Replace or patch | Can return |
282 |---|---|---|---|---|
283 | `Profiles().Get` | yes (lookup key) | — | — | `ErrNotFound` |
284 | `Profiles().Search` | — | — | — | `ErrInvalidQuery` |
285 | `Profiles().Create` | **no** — must be `""`, DAO generates | DAO sets both | — | `ErrInvalidArgument` (non-empty ID, or CHECK violation); `ErrAlreadyExists` — see note below |
286 | `Profiles().Update` | yes — identifies the row | DAO sets `UpdatedAt` | **full replace**; nil NULLs the column | `ErrNotFound`, `ErrInvalidArgument` |
287 | `Profiles().Upsert` | **yes** — conflict target; caller must already hold it | DAO sets `UpdatedAt`; sets `CreatedAt` on insert only — **the `DO UPDATE SET` list must exclude `created_at`** | **full replace** | `ErrInvalidArgument` |
288 | `Profiles().Delete` | yes | — | — | `ErrNotFound`; **cascades to credentials, see §6.2** |
289 | `Credentials().GetByUsername` | — | — | — | `ErrNotFound`; DAO lower-cases input |
290 | `Credentials().ListByUserID` | — | — | — | empty slice, not `ErrNotFound`, when the user has none |
291 | `Credentials().Create` | **no** — DAO generates | DAO sets both | — | `ErrDuplicateUsername`, `ErrInvalidMethod`, `ErrInvalidCredential`, `ErrInvalidArgument` |
292 | `Credentials().Update` | yes | DAO sets `UpdatedAt` | **full replace** | `ErrNotFound`, `ErrDuplicateUsername`, `ErrInvalidCredential` |
293 | `Credentials().Delete` | yes | — | — | `ErrNotFound`; does **not** delete the profile (§6.2) |
294 | `Methods().Get` / `GetByName` | yes / name | — | — | `ErrNotFound` |
295 | `Methods().List` | — | — | — | empty slice when none |
296
297 `DeleteExpired` and `DeleteProfile` (§3c) are not in the table above: both are composite-level, both write `deletion_log` in the same transaction as the delete, both return `ErrInvalidArgument` on a bad class or reason, and `DeleteExpired` returns counts rather than rows. `CreateProfileWithCredential` (§3b) is likewise not in it because it spans two rows: IDs DAO-generated for both, `c.UserID` ignored on input and set from the created profile, both timestamps DAO-set, and on failure neither row exists.
298
299 Every write method above additionally runs inside the retry seam described in §4 when the engine is CockroachDB.
300
301 **Three clarifications from 03's first-pass review, each resolving an ambiguity rather than changing a decision:**
302
303 1. **`ErrAlreadyExists` is real but not caller-reachable.** Because no caller supplies an ID, a primary-key collision can only arise from a UUID collision or a duplicated retry — never from caller error. It stays in the sentinel set and stays translated (it is one branch in the error mapping), but it is documented as an **internal-error signal, not a caller contract**, and the conformance suite is **not** required to exercise it. 03 should not spend effort constructing a test for a path a caller cannot reach.
304 {
"file_path": "/Users/warrenthompson/Source/LoginID/05-data-ops/multi-db-strategy.md",
"offset": 415,
"limit": 40
}415 | Column | Go type | Both families | Null? | Note |
416 |---|---|---|---|---|
417 | `id` | `string` | UUID / TEXT | NOT NULL | PK |
418 | `name` | `string` | TEXT | NOT NULL | UNIQUE. Seeded with `'password'`. |
419 | `requires_secret` | `bool` | BOOLEAN / INTEGER 0-1 | NOT NULL | `false` for passkey/WebAuthn-style methods |
420 | `is_active` | `bool` | BOOLEAN / INTEGER 0-1 | NOT NULL | |
421 | `created_at` | `time.Time` | TIMESTAMPTZ / TEXT | NOT NULL | |
422
423 ### `deletion_log`
424
425 Required by the retention mechanism in `pii-governance.md`, which needs durable evidence that a deletion happened after the row itself is gone. **This table is PII-free by construction and must stay that way** — otherwise the log becomes a second copy of the data the retention policy exists to remove, with no clock of its own.
426
427 | Column | Go type | Postgres / CockroachDB | SQLite | Null? | Note |
428 |---|---|---|---|---|---|
429 | `id` | `string` | `UUID` | `TEXT` | NOT NULL | PK |
430 | `profile_id` | `string` | `UUID` | `TEXT` | NOT NULL | **No FK** — the row it refers to is deliberately gone. Identifies a deleted row; not linkable to a person once the profile no longer exists. |
431 | `source` | `string` | `TEXT` | `TEXT` | NOT NULL | the deleted profile's class, so a sweep can be audited per class |
432 | `reason` | `string` | `TEXT` | `TEXT` | NOT NULL | `CHECK (reason IN ('retention_sweep','subject_request'))`, named `ck_deletion_log_reason` |
433 | `external_ref` | `*string` | `TEXT` | `TEXT` | NULL ok | the subject's request reference; NULL for sweeps |
434 | `job_run_id` | `*string` | `TEXT` | `TEXT` | NULL ok | NULL for operator-invoked subject deletions |
435 | `deleted_at` | `time.Time` | `TIMESTAMPTZ` | `TEXT` | NOT NULL | |
436
437 **No name, phone, address, username or secret column exists here and none may be added.** Same rule as `user_credential`, same reason, and it belongs in §6 — see item 11.
438
439 ### Indexes
440
441 | Index | Where | Serves |
442 |---|---|---|
443 | `GIN (LOWER(name) gin_trgm_ops)` | Postgres + CockroachDB only | `Search` name filter. **Expression index, not the bare column** — a GIN index on bare `name` is not used by a `LOWER(name)` predicate, so the accelerator would accelerate nothing. The predicate must match the index expression textually: `LOWER(name) LIKE ?` is the only permitted form, and a future `name ILIKE ?` silently loses the index. |
444 | B-Tree on `phone` | all | `Search` phone filter. **Exact match only** — the `ProfileQuery.Phone` contract is exact, and the first draft's "exact/prefix" here contradicted it. The index would support prefix matching; the contract does not offer it. |
445 | UNIQUE on `lower(username)` | all | auth lookup; case-folded uniqueness |
446 | B-Tree on `user_credential(user_id)` | all | `ListByUserID`, cascade delete |
447 | B-Tree on `user_credential(method_id)` | all | FK integrity |
448 | *(none)* | — | **`Search` ordering has no supporting index.** GIN cannot serve `ORDER BY`, so every `Search` sorts its filtered set. Accepted at this scale; recorded because a guarantee we are choosing *not* to make still gets written down. |
449
450 ## 6. Out of scope for 03 — do not redesign; flag to 05 instead
451
452 Numbered so there is no ambiguity. Each names **the enforcement site that makes it hold**, per the principle adopted in `decisions/search-query-shape.md`: *a guarantee with no named enforcement site is not a guarantee, it is a hope.*
453
454 1. **PII/credential separation.** `user_credential` carries no name, phone or address; `user_profile` carries no secret. This is a governance control, not normalization convenience — a breach of one table must not expose the other class of data (`pii-governance.md`). *Enforcement: the column sets in §5, the three-accessor split in §1, and a conformance test asserting neither struct gains a field from the other.*{
"command": "grep -rn \"go-ahead\\|go ahead\" /Users/warrenthompson/Source/LoginID/LOG.md /Users/warrenthompson/Source/LoginID/CLAUDE.md /Users/warrenthompson/Source/LoginID/03-engineering-delivery/CLAUDE.md 2>/dev/null | tail -30"
}/Users/warrenthompson/Source/LoginID/CLAUDE.md:71:Planning Phases 0–3 are complete (2026-09-12): five track plans approved, 18 hires live in five lead sessions, every track's Phase 3 debates and hand-offs delivered, and the cross-track consistency pass reported (`decisions/cross-track-consistency.md`: 52 findings, six bounded fixes required before planning is declared done — in progress, owned per finding). Phase 4 is under way: Jira Epics `LT-1`…`LT-5` exist, tracks 01 and 05 are transcribed, 02/03/04 follow the pass fixes. All implementation code was deliberately wiped earlier in the day and none has been written since; **no code until Warren's explicit go-ahead**, which he gives after the PM reports the backlog implementation-ready.
/Users/warrenthompson/Source/LoginID/03-engineering-delivery/CLAUDE.md:36:Planning complete (2026-09-12): 4 hires spawned and live, `PLAN.md` approved, Service boundaries published in root `PLANNING.md`, four implementation-call decisions ruled (`decisions/go-layout-debate.md`, `error-semantics.md`, `context-propagation.md`, `test-double-strategy.md`), 05's DAO contract accepted (including a second-pass review and 05's resulting `CreateProfileWithCredential` fix), 02's `handoff-03-auth.md` v3 accepted, `backlog.md` written (11 stories, Epic `LT-3`). No `.go`/`.sql`/`go.mod` exists yet — still waiting on Warren's explicit implementation go-ahead.
/Users/warrenthompson/Source/LoginID/LOG.md:19:**~09:58 — Return to planning; code wiped.** Warren, speaking directly in the 03 lead's session, said the project is still in planning — no code. Renata backed out the DAO scaffolding she had started on team-lead's earlier go-ahead. Warren then directed a restart: all code-shaped artifacts deleted (`05-data-ops/repository_interfaces.go`, `05-data-ops/schema/*.sql`); Priya folded the interface contract and schema shape into prose in `multi-db-strategy.md`. Each lead moved its working directory into its own track.
/Users/warrenthompson/Source/LoginID/LOG.md:57:**Phase 3 — track 02 complete (S1–S10).** `ai-workflow-narrative.md` now carries the org layer explicitly: it leads with Tomasz's `profile:read:any` no-op finding, states the S8 reassignment as a general lesson ("independence is checked at review time, not assigned once — a role trusted once at planning can decay as the same small roster accumulates authorship across debates"), reports S5's ruling including the position that lost, and names the real external operator agent as deliberately never contacted. S10 verified `threat-model.md` already carried both required fixes. S11 (post-implementation review) is gated on Warren's code go-ahead by design. Four of five tracks have closed Phase 3; 05's S1 contract is the sole remaining input to the cross-track consistency pass.{
"file_path": "/Users/warrenthompson/Source/LoginID/03-engineering-delivery/refinement/LT-35.md"
}1 # LT-35 refinement — S2: DAO interface, domain types, sentinels, factory 2 3 **Product Owner:** Naomi Voss (01). **Research team:** Imogen Hale, Desmond Okafor, Tobias Lindqvist. **Engineering:** Renata Cole (03). **Source:** `03-engineering-delivery/backlog.md` S2 (LT-35). 4 5 **Who did the work:** Refined by Naomi Voss (PO); claims check Desmond Okafor; objection Tobias Lindqvist; engineering counterpart Renata Cole. 6 7 ## Why this story is pulled second 8 9 LT-34 (walking skeleton) is in implementation. This is the next story in dependency order per `backlog.md` (`Depends on: S1`) and it's the shape every backend implementation (S3 Postgres/CockroachDB, and the SQLite backend) and the test-double fakes (S9) implement against next — it has to land before either backend story can start for real. No feature-priority reason to pull anything else first. 10 11 ## Acceptance outcome (this story has no public-URL surface — it's an interface, not a running service) 12 13 Unlike LT-34, "done" here is not something reviewable at a public URL — there's no backend logic yet, nothing to deploy that behaves differently. Acceptance is mechanical and code-level: the interface, types, and sentinels exist, match 05's contract exactly, and CI proves it two ways — (1) the package compiles and its own unit tests (input-validation boundary cases) pass, and (2) a conformance/interface test (Oren's, per `03-engineering-delivery/decisions/test-double-strategy.md`) asserts the Go signatures match `05-data-ops/multi-db-strategy.md`'s full Go-shaped contract (§1–§4) byte-for-byte, not just "close enough." 14 15 ## Acceptance criteria (restated from `backlog.md` S2) 16 17 - [ ] A hire or reviewer unfamiliar with 05's reasoning can implement a backend against this package without re-reading `multi-db-strategy.md` — the Go types here are the contract, not a paraphrase of it. 18 - [ ] Every sentinel in 05's §4 is defined verbatim (name and wrapped message), including `ErrAlreadyExists`'s status as an internal-error signal with no caller-reachable path. Enforcement site: `dao` package source, doc comment on `ErrAlreadyExists` stating that status explicitly (per Oren's finding #1, ruled by 05). 19 - [ ] `CreateProfileWithCredential(ctx, p, c)` exists on the composite per 05's §3b resolution, with `c.UserID` ignored on input. Enforcement site: method signature plus a unit test asserting the input `UserID` is overwritten. 20 - [ ] Pointer fields follow "absent, never empty" — a non-nil, empty `*string` is rejected as `ErrInvalidArgument` at the boundary, not silently accepted. Enforcement site: input-validation unit test per field. 21 - [ ] (Added for this refinement, the seam-13 mechanical check team-lead named) Every exported type, method signature, and sentinel error name/message in this package matches `05-data-ops/multi-db-strategy.md`'s Go-shaped contract **byte-for-byte** — not "equivalent," not "close enough." Scope, corrected after claims check: the `Repository` composite/factory is §1, domain types are §2, the three sub-interfaces plus `ProfileQuery` are §3, sentinels are §4 — the conformance test must cover all four sections, not §3 alone. Enforcement site: a conformance test (Oren's) that fails on any drift, run in CI on the public repo. 22 - [ ] The conformance test's source states, in a comment, which of two mechanisms it uses — (a) live-parses expected signatures from `multi-db-strategy.md` §1–§4 at test time, or (b) embeds a frozen copy of the expected signatures written once at scoping time. If (b), the test must also embed a checksum of the source `multi-db-strategy.md` §1–§4 sections it was derived from and fail loudly (not silently pass) if that checksum no longer matches the doc's current content — so a later revision to 05's contract forces a human to re-sync the frozen copy, rather than leaving a conformance test that still runs but no longer means anything. Enforcement site: the doc comment plus the checksum-mismatch failure path in the test itself. 23 24 ## Non-goals 25 26 - No backend implementation (Postgres/CockroachDB or SQLite) — that's S3/S4, next in the queue after this. 27 - No actual database connection or query execution — `dao.New(driver, dsn)`'s factory signature exists and is callable, but nothing behind it does real I/O yet. 28 - No test-double/fake implementation itself — S9 builds the fakes against this interface; this story only has to make that possible, not do it. 29 30 ## PO review script (what I will actually check to accept this story) 31 32 Since there's no public URL for an interface, acceptance is verified entirely in the repo and CI, at `https://github.com/wtvamp/loginid-takehome`: 33 34 1. Open the PR; confirm CI is green, specifically Oren's conformance/interface test job (not just "tests pass" generally — the specific job that checks signature match against 05's contract). 35 2. Diff the PR's `dao` package types/interfaces/sentinels against `05-data-ops/multi-db-strategy.md` §1–§4 myself, spot-checking at least the `Repository` composite (§1), `ProfileQuery` (§3), and the seven sentinel names (§4) — I'm not solely trusting the CI job's own claim of a match, since a conformance test can itself have a bug. 36 2a. Confirm the conformance test's doc comment states which mechanism it uses (live-parse vs. frozen-copy-with-checksum) — if frozen-copy, confirm the checksum-mismatch failure path exists (I don't need to trigger it manually, just confirm it's there in the test source), so this check doesn't quietly stop meaning anything the first time 05 revises the contract. 37 3. Confirm the doc comment on `ErrAlreadyExists` exists and states its internal-error-only status, per the acceptance criterion above (this is the one criterion CI can't easily check — it's a comment, not behavior). 38 4. Confirm the "absent, never empty" pointer-validation unit tests exist and are named/scoped per-field (not one combined test that could hide a missed field). 39 5. Confirm the PR contains no database driver import, no SQL, no connection string handling — this story should touch zero real I/O. 40 41 If all five pass, the story is accepted and I mark it Done in `backlog.md`, then notify the PM. 42 43 ## Research team review 44 45 **Desmond Okafor — claims check:** One substantive error found: every reference to "05's §3" as the conformance test's scope was wrong — the `Repository` composite/factory is actually §1, domain types §2, sentinels §4; only the sub-interfaces and `ProfileQuery` are in §3. As written, a test scoped literally to "§3" would miss the composite, domain types, and every sentinel — exactly what the acceptance criteria elsewhere require it to check. Fixed by changing every scope reference to §1–§4. Everything else (the `CreateProfileWithCredential`/`c.UserID` criterion, sentinel count and names, `ErrAlreadyExists` status, and the doc-comment-vs-CI distinction I'd asked about) checked out against `multi-db-strategy.md` and 05's own clarifications. 46 47 **Tobias Lindqvist — objection:** The conformance test's durability was left implicit — "byte-for-byte" reads as a solved, stable check, but a live-doc-parsing implementation and a frozen-copy implementation have opposite failure modes (one breaks CI on unrelated prose edits, the other silently stops meaning anything once 05 revises the contract), and neither is visible in the original PO review script. Counter-proposal accepted: the conformance test must declare its mechanism in a comment, and if frozen-copy, must carry a checksum of the source section and fail loudly on drift rather than passing forever. 48 49 **Naomi Voss — ruling:** Both fixes applied. This refinement is accepted and ready to hand off — the §1–§4 scope correction is a real fix (an implementer following the original text would have under-built the conformance test), and the mechanism-declaration/checksum requirement closes a durability gap that wouldn't have surfaced until 05 revised the contract later, by which point it would have been much harder to trace. 50
{
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}01-product-industry-research-design 02-ai-security-architecture 03-engineering-delivery 04-infra-devops 05-data-ops cmd decisions internal profiles scripts CASTING.md CLAUDE.md go.mod LOG.md PLAN.md PLANNING.md --- 71:Planning Phases 0–3 are complete (2026-09-12): five track plans approved, 18 hires live in five lead sessions, every track's Phase 3 debates and hand-offs delivered, and the cross-track consistency pass reported (`decisions/cross-track-consistency.md`: 52 findings, six bounded fixes required before planning is declared done — in progress, owned per finding). Phase 4 is under way: Jira Epics `LT-1`…`LT-5` exist, tracks 01 and 05 are transcribed, 02/03/04 follow the pass fixes. All implementation code was deliberately wiped earlier in the day and none has been written since; **no code until Warren's explicit go-ahead**, which he gives after the PM reports the backlog implementation-ready.
{
"command": "cd /Users/warrenthompson/Source/LoginID-worktrees/LT-35 && git log --oneline -10 && git branch --show-current && ls internal/dao internal/model"
}c5698b1 Merge PR #1: LT-34 walking skeleton (two binaries, health endpoint) 52d8d38 LT-34: trivial follow-up commit for PO freshness check 3e90b4f LT-34: walking skeleton (Go module, two binaries, shared bootstrap, config) a843933 Shared working tree rule: feature branches live in git worktrees dcecf64 Agile loop start: per-story code gate, QA function, pass-fix doc updates 1e20000 Planning phase closed: seam-13 restatement sweep across all tracks 51e5380 Planning declared consistent; full backlog in Jira (LT-1..LT-50) 3459a6e Phase 3/4: consistency-pass report, five backlogs, Epics and first transcriptions d05876f Phase 3 complete: all five tracks close planning; consistency pass next 71558d2 Phase 3: debate artifacts, hand-offs, and three tracks' planning outputs feature/LT-35 internal/dao: errors.go factory.go query.go repository.go retention.go validate.go validate_test.go internal/model: model.go Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery
{
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-35/internal/model/model.go"
}1 // Package model holds the domain structs shared by internal/dao,
2 // internal/api, and internal/connector — per PLANNING.md's Service
3 // boundaries and 05-data-ops/multi-db-strategy.md §1a: domain types live
4 // here (not in internal/dao) because handlers and the connector both
5 // handle them without touching the DAO.
6 package model
7
8 import "time"
9
10 // UserProfile matches multi-db-strategy.md §2 exactly. Pointer fields mean
11 // "absent", never "empty" — a non-nil, empty *string is invalid input, not
12 // a value (see internal/dao's validation helpers).
13 type UserProfile struct {
14 ID string // UUID
15 Name string // required, never empty
16 Phone *string
17 StreetAddress *string
18 Locality *string
19 Region *string
20 PostalCode *string
21 Country *string // ISO 3166-1 alpha-2, upper-case
22 Source string // "direct" | "idp_cache"
23 CreatedAt time.Time
24 UpdatedAt time.Time
25 }
26
27 // UserCredential matches multi-db-strategy.md §2 exactly. SecretState makes
28 // the three real states (no server-held secret required, not yet set,
29 // revoked) distinguishable — a bare nullable Secret cannot.
30 type UserCredential struct {
31 ID string // UUID
32 UserID string // FK -> user_profile.id
33 Username string // unique, case-folded
34 MethodID string // FK -> auth_method.id
35 Secret []byte // nil unless SecretState == "set"
36 SecretState string // "none" | "set" | "revoked"
37 HashAlgo *string
38 HashCost *int
39 CreatedAt time.Time
40 UpdatedAt time.Time
41 }
42
43 // AuthMethod matches multi-db-strategy.md §2 exactly.
44 type AuthMethod struct {
45 ID string
46 Name string // "password", "passkey", "otp", "oidc", ...
47 RequiresSecret bool
48 IsActive bool
49 CreatedAt time.Time
50 }
51 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-35/internal/dao/errors.go"
}1 package dao
2
3 import "errors"
4
5 // The seven sentinels from multi-db-strategy.md §4, verbatim. Every backend
6 // implementation (S3/S4) returns one of these for its matching condition —
7 // the service layer never distinguishes sql.ErrNoRows from a
8 // SQLite-specific miss. Anything not in this set is wrapped with %w and
9 // passed through. Test with errors.Is.
10 var (
11 ErrNotFound = errors.New("dao: not found")
12
13 // ErrAlreadyExists is reachable only via an actual UUID collision or a
14 // duplicated retry on Create — never via caller input, since Create
15 // never accepts a caller-supplied ID (a non-empty ID is
16 // ErrInvalidArgument instead). It is an internal-error signal, not a
17 // caller-facing contract: 05's conformance suite is explicitly NOT
18 // required to exercise this sentinel, and no test should be built
19 // around making it reachable from caller input (05's ruling on
20 // Oren's original-review finding #1).
21 ErrAlreadyExists = errors.New("dao: already exists")
22
23 ErrDuplicateUsername = errors.New("dao: duplicate username")
24 ErrInvalidMethod = errors.New("dao: unknown or inactive auth method")
25 ErrInvalidQuery = errors.New("dao: invalid query")
26 ErrInvalidArgument = errors.New("dao: invalid argument")
27 ErrInvalidCredential = errors.New("dao: credential violates secret-state rules")
28 )
29 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-35/internal/dao/query.go"
}1 package dao
2
3 // ProfileQuery matches multi-db-strategy.md §3 exactly. nil means "don't
4 // filter"; a non-nil, empty string is invalid input (ErrInvalidQuery), per
5 // the same "absent, never empty" convention as the domain types.
6 type ProfileQuery struct {
7 Name *string // case-folded substring match; caller input escaped by the DAO
8 Phone *string // EXACT match on the E.164-normalized value (not prefix)
9 Region *string // case-folded exact match
10 Country *string // exact match, alpha-2, upper-cased by the DAO
11 Limit int // 1..100; 0 means "use default 50", deliberately
12 Offset int // 0..10_000
13 }
14 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-35/internal/dao/retention.go"
}1 package dao
2
3 import "time"
4
5 // RetentionClass matches multi-db-strategy.md §3c exactly.
6 type RetentionClass string
7
8 const (
9 RetentionDirect RetentionClass = "direct"
10 RetentionIDPCache RetentionClass = "idp_cache"
11 RetentionIDPCacheOrphan RetentionClass = "idp_cache_orphan"
12 )
13
14 // SweepResult matches multi-db-strategy.md §3c exactly (post-F21-addendum
15 // batching revision). OldestSurvivingAt is nil only when the class has zero
16 // rows remaining after this call — never for "nothing was old enough to
17 // touch" (05's ruling on Oren's F21 review finding #1). It is meaningful
18 // only when Drained is true: mid-sweep, deletable rows still exist by
19 // construction, so the oldest survivor reads old on every batch but the
20 // last — publishing this field from a non-drained result would fire a
21 // health alert on every sweep, not just a stopped one.
22 type SweepResult struct {
23 RowsExamined int
24 RowsDeleted int
25 OldestSurvivingAt *time.Time
26 Drained bool
27 }
28 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-35/internal/dao/repository.go"
}1 package dao
2
3 import (
4 "context"
5 "time"
6
7 "loginid-takehome/internal/model"
8 )
9
10 // ProfileRepository matches multi-db-strategy.md §3 exactly (types
11 // qualified with model. per §1a).
12 type ProfileRepository interface {
13 Get(ctx context.Context, id string) (*model.UserProfile, error)
14 Search(ctx context.Context, q ProfileQuery) (results []model.UserProfile, total int, err error)
15 Create(ctx context.Context, p *model.UserProfile) (*model.UserProfile, error)
16 Update(ctx context.Context, p *model.UserProfile) (*model.UserProfile, error)
17 Upsert(ctx context.Context, p *model.UserProfile) (*model.UserProfile, error)
18 Delete(ctx context.Context, id string) error
19 }
20
21 // CredentialRepository matches multi-db-strategy.md §3 exactly. Never
22 // accepts or returns a UserProfile field, in either direction — the
23 // PII/credential separation is a governance control (05-data-ops's
24 // pii-governance.md), not a modelling preference.
25 type CredentialRepository interface {
26 GetByUsername(ctx context.Context, username string) (*model.UserCredential, error)
27 ListByUserID(ctx context.Context, userID string) ([]model.UserCredential, error)
28 Create(ctx context.Context, c *model.UserCredential) (*model.UserCredential, error)
29 Update(ctx context.Context, c *model.UserCredential) (*model.UserCredential, error)
30 Delete(ctx context.Context, id string) error
31 }
32
33 // AuthMethodRepository matches multi-db-strategy.md §3 exactly.
34 type AuthMethodRepository interface {
35 Get(ctx context.Context, id string) (*model.AuthMethod, error)
36 GetByName(ctx context.Context, name string) (*model.AuthMethod, error)
37 List(ctx context.Context, activeOnly bool) ([]model.AuthMethod, error)
38 }
39
40 // Repository is the composite interface agreed directly with 05 (§1) and
41 // extended by the §3b (CreateProfileWithCredential) and §3c (DeleteExpired,
42 // DeleteProfile) addenda. It stays an interface, not a struct with exported
43 // fields, so it's mockable for this track's test-double strategy
44 // (decisions/test-double-strategy.md). The three accessors stay distinct
45 // rather than flattening into one interface because that separation is a
46 // PII/credential governance control: a call site must reach for the
47 // credential accessor deliberately.
48 type Repository interface {
49 Profiles() ProfileRepository
50 Credentials() CredentialRepository
51 Methods() AuthMethodRepository
52
53 // CreateProfileWithCredential is the one cross-table write in the
54 // contract besides the retention methods below — both rows in a
55 // single transaction. c.UserID is ignored on input and set from the
56 // profile just created; see PrepareCreateProfileWithCredential.
57 CreateProfileWithCredential(ctx context.Context, p *model.UserProfile, c *model.UserCredential) (*model.UserProfile, *model.UserCredential, error)
58
59 // DeleteExpired batches a retention sweep for one class at a time
60 // (never a mixed predicate), bounded by maxRows per call so a single
61 // sweep never holds one unbounded transaction. Never call with a
62 // request-scoped context — a sweep must not be silently cancelled
63 // because an unrelated inbound request ended.
64 DeleteExpired(ctx context.Context, class RetentionClass, olderThan time.Time, maxRows int) (SweepResult, error)
65
66 // DeleteProfile is the only path for a subject-deletion request;
67 // reason is asserted internally as "subject_request" by the backend,
68 // never caller-supplied (05's ruling on Oren's F21 review finding #3).
69 DeleteProfile(ctx context.Context, id string, externalRef *string) error
70
71 Close() error
72 }
73 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-35/internal/dao/factory.go"
}1 package dao
2
3 import "fmt"
4
5 // New selects a backend implementation by driver name, matching
6 // multi-db-strategy.md §1's factory signature exactly. "postgres" and
7 // "cockroachdb" are distinct driver strings rather than one because the
8 // engine-aware retry seam (§4) needs to know which engine it is talking to.
9 //
10 // No backend is registered yet — S3 (postgres/cockroachdb) and S4 (sqlite)
11 // register themselves via Register in their own package init(). Until
12 // then, New always returns an error for every driver name, which is
13 // expected: this story's non-goal is real I/O, not a callable factory.
14 func New(driver, dsn string) (Repository, error) {
15 ctor, ok := drivers[driver]
16 if !ok {
17 return nil, fmt.Errorf("dao: unknown driver %q", driver)
18 }
19 return ctor(dsn)
20 }
21
22 type driverCtor func(dsn string) (Repository, error)
23
24 var drivers = map[string]driverCtor{}
25
26 // Register is called by a backend package's init() to register itself
27 // under a driver name (e.g. "postgres", "cockroachdb", "sqlite"). Not part
28 // of 05's Go-shaped contract — an internal wiring mechanism this track owns
29 // so New's signature never has to change as backends are added.
30 func Register(name string, ctor driverCtor) {
31 drivers[name] = ctor
32 }
33 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-35/internal/dao/validate.go"
}1 package dao
2
3 import "loginid-takehome/internal/model"
4
5 // ValidateCreateID enforces multi-db-strategy.md §2's rule: on Create, the
6 // caller leaves ID as "" and the DAO generates it. A non-empty ID is a
7 // caller error, not a request to use that ID.
8 func ValidateCreateID(id string) error {
9 if id != "" {
10 return ErrInvalidArgument
11 }
12 return nil
13 }
14
15 // ValidateProfilePointers enforces "absent, never empty" for every
16 // *string field on UserProfile: a non-nil, empty pointer is invalid input.
17 // Backend implementations (S3/S4) call this before any write.
18 func ValidateProfilePointers(p *model.UserProfile) error {
19 for _, f := range []*string{p.Phone, p.StreetAddress, p.Locality, p.Region, p.PostalCode, p.Country} {
20 if f != nil && *f == "" {
21 return ErrInvalidArgument
22 }
23 }
24 return nil
25 }
26
27 // ValidateCredentialPointers enforces "absent, never empty" for
28 // UserCredential's *string field(s).
29 func ValidateCredentialPointers(c *model.UserCredential) error {
30 if c.HashAlgo != nil && *c.HashAlgo == "" {
31 return ErrInvalidArgument
32 }
33 return nil
34 }
35
36 // PrepareCreateProfileWithCredential clears any caller-supplied UserID on
37 // c, per multi-db-strategy.md §3b: the DAO always sets UserID from the
38 // profile it just created, never trusting a caller-supplied value. Backend
39 // implementations call this before creating the credential row, then set
40 // the real UserID from the newly created profile's ID.
41 func PrepareCreateProfileWithCredential(c *model.UserCredential) {
42 c.UserID = ""
43 }
44 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-35/internal/dao/validate_test.go"
}1 package dao
2
3 import (
4 "testing"
5
6 "loginid-takehome/internal/model"
7 )
8
9 func TestValidateCreateID(t *testing.T) {
10 if err := ValidateCreateID(""); err != nil {
11 t.Errorf("empty ID should be valid, got %v", err)
12 }
13 if err := ValidateCreateID("caller-supplied-id"); err != ErrInvalidArgument {
14 t.Errorf("non-empty ID should be ErrInvalidArgument, got %v", err)
15 }
16 }
17
18 func ptr(s string) *string { return &s }
19
20 func TestValidateProfilePointers_Phone(t *testing.T) {
21 if err := ValidateProfilePointers(&model.UserProfile{Phone: nil}); err != nil {
22 t.Errorf("nil Phone should be valid (absent), got %v", err)
23 }
24 if err := ValidateProfilePointers(&model.UserProfile{Phone: ptr("+15551234567")}); err != nil {
25 t.Errorf("non-empty Phone should be valid, got %v", err)
26 }
27 if err := ValidateProfilePointers(&model.UserProfile{Phone: ptr("")}); err != ErrInvalidArgument {
28 t.Errorf("empty-string Phone should be ErrInvalidArgument, got %v", err)
29 }
30 }
31
32 func TestValidateProfilePointers_StreetAddress(t *testing.T) {
33 if err := ValidateProfilePointers(&model.UserProfile{StreetAddress: ptr("")}); err != ErrInvalidArgument {
34 t.Errorf("empty-string StreetAddress should be ErrInvalidArgument, got %v", err)
35 }
36 }
37
38 func TestValidateProfilePointers_Locality(t *testing.T) {
39 if err := ValidateProfilePointers(&model.UserProfile{Locality: ptr("")}); err != ErrInvalidArgument {
40 t.Errorf("empty-string Locality should be ErrInvalidArgument, got %v", err)
41 }
42 }
43
44 func TestValidateProfilePointers_Region(t *testing.T) {
45 if err := ValidateProfilePointers(&model.UserProfile{Region: ptr("")}); err != ErrInvalidArgument {
46 t.Errorf("empty-string Region should be ErrInvalidArgument, got %v", err)
47 }
48 }
49
50 func TestValidateProfilePointers_PostalCode(t *testing.T) {
51 if err := ValidateProfilePointers(&model.UserProfile{PostalCode: ptr("")}); err != ErrInvalidArgument {
52 t.Errorf("empty-string PostalCode should be ErrInvalidArgument, got %v", err)
53 }
54 }
55
56 func TestValidateProfilePointers_Country(t *testing.T) {
57 if err := ValidateProfilePointers(&model.UserProfile{Country: ptr("")}); err != ErrInvalidArgument {
58 t.Errorf("empty-string Country should be ErrInvalidArgument, got %v", err)
59 }
60 }
61
62 func TestValidateCredentialPointers_HashAlgo(t *testing.T) {
63 if err := ValidateCredentialPointers(&model.UserCredential{HashAlgo: nil}); err != nil {
64 t.Errorf("nil HashAlgo should be valid (absent), got %v", err)
65 }
66 if err := ValidateCredentialPointers(&model.UserCredential{HashAlgo: ptr("argon2id")}); err != nil {
67 t.Errorf("non-empty HashAlgo should be valid, got %v", err)
68 }
69 if err := ValidateCredentialPointers(&model.UserCredential{HashAlgo: ptr("")}); err != ErrInvalidArgument {
70 t.Errorf("empty-string HashAlgo should be ErrInvalidArgument, got %v", err)
71 }
72 }
73
74 func TestPrepareCreateProfileWithCredential_ClearsCallerSuppliedUserID(t *testing.T) {
75 c := &model.UserCredential{UserID: "attacker-supplied-user-id"}
76 PrepareCreateProfileWithCredential(c)
77 if c.UserID != "" {
78 t.Errorf("UserID = %q, want empty — caller-supplied UserID must be cleared before the backend sets it from the newly created profile", c.UserID)
79 }
80 }
81 {
"command": "cd /Users/warrenthompson/Source/LoginID-worktrees/LT-35 && grep -n \"^## 1\\. The factory\\|^## 5\\. Field-level schema\" 05-data-ops/multi-db-strategy.md"
}85:## 1. The factory and the composite 373:## 5. Field-level schema Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery
{
"command": "cd /Users/warrenthompson/Source/LoginID-worktrees/LT-35 && grep -n \"^## \\|^### \" 05-data-ops/multi-db-strategy.md | sed -n '1,40p'"
}5:## The interface contract (prose, not code) 20:## Why not one implementation with dialect branches 28:## Dialect differences that survive into the DAO layer 39:## Schema shape (prose, not DDL) 51:## Migration approach 58:## What the engineering track should take from this 85:## 1. The factory and the composite 114:## 2. Domain types 162:## 3. The interfaces 198:### `Search` semantics carried over from the S2 ruling 207:### What `Search` does on SQLite — read this before assuming parity 235:## 3b. The one cross-table operation: atomic registration 249:## 3c. Retention and deletion — added after the consistency pass (F21) 286:## 3a. Per-method summary — read this row before writing that method 318:## 4. Error semantics 334:### How driver errors become sentinels 359:### The write-path retry seam — a decision, not an observation 373:## 5. Field-level schema 377:### `user_profile` 395:### `user_credential` 422:### `auth_method` 432:### `deletion_log` 448:### Indexes 459:## 6. Out of scope for 03 — do not redesign; flag to 05 instead 476:## 7. The conformance suite — a requirement, not a suggestion Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery
{
"command": "cd /Users/warrenthompson/Source/LoginID-worktrees/LT-35 && sed -n '85,372p' 05-data-ops/multi-db-strategy.md > /tmp/section-1-4.txt && wc -l /tmp/section-1-4.txt && sha256sum /tmp/section-1-4.txt 2>/dev/null || shasum -a 256 /tmp/section-1-4.txt"
}288 /tmp/section-1-4.txt «REDACTED-HEX» /tmp/section-1-4.txt Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery
{
"command": "shasum -a 256 /tmp/section-1-4.txt | awk '{print $1}' | tr -d '\\n' | wc -c\nshasum -a 256 /tmp/section-1-4.txt"
}64 «REDACTED-HEX» /tmp/section-1-4.txt
{
"command": "cat /Users/warrenthompson/Source/LoginID-worktrees/LT-35/go.mod; echo ---; cat /Users/warrenthompson/Source/LoginID-worktrees/LT-35/go.sum 2>/dev/null | head -5; go version"
}module loginid-takehome go 1.27.1 --- go version go1.27.1 darwin/arm64
{
"command": "cd /Users/warrenthompson/Source/LoginID-worktrees/LT-35 && cat > /tmp/extract.sh << 'EOF'\n#!/bin/bash\nEOF\necho done"
}done Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery
{
"command": "cd /Users/warrenthompson/Source/LoginID-worktrees/LT-35 && python3 - << 'EOF'\nimport hashlib\nwith open(\"05-data-ops/multi-db-strategy.md\",\"r\",encoding=\"utf-8\") as f:\n content = f.read()\nstart_marker = \"## 1. The factory and the composite\"\nend_marker = \"## 5. Field-level schema\"\nstart = content.index(start_marker)\nend = content.index(end_marker)\nsection = content[start:end]\nprint(\"len:\", len(section))\nprint(\"sha256:\", hashlib.sha256(section.encode(\"utf-8\")).hexdigest())\nEOF"
}len: 30278 sha256: «REDACTED-HEX» Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery
{
"command": "ls /Users/warrenthompson/Source/LoginID-worktrees/LT-35/internal/dao/../../05-data-ops/multi-db-strategy.md"
}/Users/warrenthompson/Source/LoginID-worktrees/LT-35/internal/dao/../../05-data-ops/multi-db-strategy.md
{
"command": "cat > /Users/warrenthompson/Source/LoginID-worktrees/LT-35/internal/dao/conformance_test.go << 'GOEOF'\npackage dao\n\n// Conformance test — the \"seam-13\" mechanical check named in\n// 03-engineering-delivery/refinement/LT-35.md and\n// decisions/test-double-strategy.md. Asserts that this package's exported\n// Go shapes match 05-data-ops/multi-db-strategy.md's §1–§4 (the factory and\n// composite, domain types, sub-interfaces plus ProfileQuery, and sentinels)\n// byte-for-byte, not \"close enough\".\n//\n// MECHANISM: FROZEN COPY, not live-parse. Reliably extracting exact Go\n// signatures out of markdown prose is impractical — multi-db-strategy.md is\n// prose describing Go shapes inside fenced code blocks, not a Go source\n// file a parser can trust. Instead, the \"expected*\" declarations below were\n// transcribed by hand from §1–§4 at the time this test was written, and\n// pinned two independent ways so a drift on either side is caught:\n//\n// 1. Structural, on OUR side: assertInterfaceEquivalent checks the actual\n// dao interfaces against the hand-transcribed expected* interfaces by\n// mutual reflect.Type.AssignableTo (same method set, both directions)\n// plus a method-count check, which catches an added, removed, or\n// resignatured method that \"compiles fine\" checks alone would miss.\n// assertStructFields does the same for domain/query/result structs,\n// field by field, in order. The factory signature (§1) is pinned by a\n// compile-time function-variable assignment — a mismatch fails the\n// build, not just this test. Sentinel identity (§4) is checked by\n// exact wrapped-message string equality, and sentinel-SET completeness\n// (nothing added or removed without updating this test) is checked by\n// parsing this package's own errors.go with go/parser — a syntax parse\n// of our own Go source, not of the markdown, so it doesn't fall under\n// the \"impractical\" case above.\n//\n// 2. Drift, on the DOC's side: TestContractChecksumUpToDate hashes\n// 05-data-ops/multi-db-strategy.md's §1–§4 section (delimited by the\n// marker strings below, matching this file's own scope) and compares\n// it against expectedContractChecksum, frozen at transcription time.\n// If 05 revises that section, this test FAILS LOUDLY instead of\n// silently continuing to assert a stale copy of the contract — a human\n// must re-transcribe the expected* declarations below and refresh the\n// checksum constant, not just bump a version number.\n//\n// Known scope limit, stated rather than hidden: this test proves the Go\n// shapes named in §1–§4 match what was transcribed from the doc at the time\n// of transcription, and that the doc section hasn't since changed\n// underneath that transcription. It cannot prove the original transcription\n// itself was faithful — that's why the PO review script\n// (refinement/LT-35.md) has a human diff the PR against the doc directly,\n// rather than trusting this test's own claim of a match.\n\nimport (\n\t\"context\"\n\t\"go/ast\"\n\t\"go/parser\"\n\t\"go/token\"\n\t\"os\"\n\t\"reflect\"\n\t\"sort\"\n\t\"strings\"\n\t\"testing\"\n\t\"time\"\n\n\t\"loginid-takehome/internal/model\"\n)\n\n// ---- §1: the factory and the composite ----\n\n// New's signature, pinned at compile time: if dao.New's signature ever\n// drifts from multi-db-strategy.md §1, this assignment fails to build.\nvar _ func(string, string) (Repository, error) = New\n\ntype expectedRepository interface {\n\tProfiles() ProfileRepository\n\tCredentials() CredentialRepository\n\tMethods() AuthMethodRepository\n\tCreateProfileWithCredential(ctx context.Context, p *model.UserProfile, c *model.UserCredential) (*model.UserProfile, *model.UserCredential, error)\n\tDeleteExpired(ctx context.Context, class RetentionClass, olderThan time.Time, maxRows int) (SweepResult, error)\n\tDeleteProfile(ctx context.Context, id string, externalRef *string) error\n\tClose() error\n}\n\nfunc TestConformance_Repository(t *testing.T) {\n\tassertInterfaceEquivalent(t, \"dao.Repository\",\n\t\treflect.TypeOf((*Repository)(nil)).Elem(),\n\t\treflect.TypeOf((*expectedRepository)(nil)).Elem())\n}\n\n// ---- §3: the three sub-interfaces plus ProfileQuery ----\n\ntype expectedProfileRepository interface {\n\tGet(ctx context.Context, id string) (*model.UserProfile, error)\n\tSearch(ctx context.Context, q ProfileQuery) (results []model.UserProfile, total int, err error)\n\tCreate(ctx context.Context, p *model.UserProfile) (*model.UserProfile, error)\n\tUpdate(ctx context.Context, p *model.UserProfile) (*model.UserProfile, error)\n\tUpsert(ctx context.Context, p *model.UserProfile) (*model.UserProfile, error)\n\tDelete(ctx context.Context, id string) error\n}\n\ntype expectedCredentialRepository interface {\n\tGetByUsername(ctx context.Context, username string) (*model.UserCredential, error)\n\tListByUserID(ctx context.Context, userID string) ([]model.UserCredential, error)\n\tCreate(ctx context.Context, c *model.UserCredential) (*model.UserCredential, error)\n\tUpdate(ctx context.Context, c *model.UserCredential) (*model.UserCredential, error)\n\tDelete(ctx context.Context, id string) error\n}\n\ntype expectedAuthMethodRepository interface {\n\tGet(ctx context.Context, id string) (*model.AuthMethod, error)\n\tGetByName(ctx context.Context, name string) (*model.AuthMethod, error)\n\tList(ctx context.Context, activeOnly bool) ([]model.AuthMethod, error)\n}\n\nfunc TestConformance_SubInterfaces(t *testing.T) {\n\tassertInterfaceEquivalent(t, \"dao.ProfileRepository\",\n\t\treflect.TypeOf((*ProfileRepository)(nil)).Elem(),\n\t\treflect.TypeOf((*expectedProfileRepository)(nil)).Elem())\n\tassertInterfaceEquivalent(t, \"dao.CredentialRepository\",\n\t\treflect.TypeOf((*CredentialRepository)(nil)).Elem(),\n\t\treflect.TypeOf((*expectedCredentialRepository)(nil)).Elem())\n\tassertInterfaceEquivalent(t, \"dao.AuthMethodRepository\",\n\t\treflect.TypeOf((*AuthMethodRepository)(nil)).Elem(),\n\t\treflect.TypeOf((*expectedAuthMethodRepository)(nil)).Elem())\n}\n\nfunc TestConformance_ProfileQuery(t *testing.T) {\n\tassertStructFields(t, \"dao.ProfileQuery\", reflect.TypeOf(ProfileQuery{}), []fieldSpec{\n\t\t{\"Name\", \"*string\"},\n\t\t{\"Phone\", \"*string\"},\n\t\t{\"Region\", \"*string\"},\n\t\t{\"Country\", \"*string\"},\n\t\t{\"Limit\", \"int\"},\n\t\t{\"Offset\", \"int\"},\n\t})\n}\n\n// §3c addenda ride along with §3's scope in this test, since RetentionClass\n// and SweepResult are part of the same sub-interface family the Repository\n// composite exposes (DeleteExpired/DeleteProfile), not a separate document\n// section with its own conformance obligation.\nfunc TestConformance_RetentionTypes(t *testing.T) {\n\tif RetentionDirect != \"direct\" {\n\t\tt.Errorf(\"RetentionDirect = %q, want %q\", RetentionDirect, \"direct\")\n\t}\n\tif RetentionIDPCache != \"idp_cache\" {\n\t\tt.Errorf(\"RetentionIDPCache = %q, want %q\", RetentionIDPCache, \"idp_cache\")\n\t}\n\tif RetentionIDPCacheOrphan != \"idp_cache_orphan\" {\n\t\tt.Errorf(\"RetentionIDPCacheOrphan = %q, want %q\", RetentionIDPCacheOrphan, \"idp_cache_orphan\")\n\t}\n\tassertStructFields(t, \"dao.SweepResult\", reflect.TypeOf(SweepResult{}), []fieldSpec{\n\t\t{\"RowsExamined\", \"int\"},\n\t\t{\"RowsDeleted\", \"int\"},\n\t\t{\"OldestSurvivingAt\", \"*time.Time\"},\n\t\t{\"Drained\", \"bool\"},\n\t})\n}\n\n// ---- §2: domain types (package model) ----\n\nfunc TestConformance_DomainTypes(t *testing.T) {\n\tassertStructFields(t, \"model.UserProfile\", reflect.TypeOf(model.UserProfile{}), []fieldSpec{\n\t\t{\"ID\", \"string\"},\n\t\t{\"Name\", \"string\"},\n\t\t{\"Phone\", \"*string\"},\n\t\t{\"StreetAddress\", \"*string\"},\n\t\t{\"Locality\", \"*string\"},\n\t\t{\"Region\", \"*string\"},\n\t\t{\"PostalCode\", \"*string\"},\n\t\t{\"Country\", \"*string\"},\n\t\t{\"Source\", \"string\"},\n\t\t{\"CreatedAt\", \"time.Time\"},\n\t\t{\"UpdatedAt\", \"time.Time\"},\n\t})\n\tassertStructFields(t, \"model.UserCredential\", reflect.TypeOf(model.UserCredential{}), []fieldSpec{\n\t\t{\"ID\", \"string\"},\n\t\t{\"UserID\", \"string\"},\n\t\t{\"Username\", \"string\"},\n\t\t{\"MethodID\", \"string\"},\n\t\t{\"Secret\", \"[]uint8\"}, // []byte and []uint8 are identical types; reflect prints the latter\n\t\t{\"SecretState\", \"string\"},\n\t\t{\"HashAlgo\", \"*string\"},\n\t\t{\"HashCost\", \"*int\"},\n\t\t{\"CreatedAt\", \"time.Time\"},\n\t\t{\"UpdatedAt\", \"time.Time\"},\n\t})\n\tassertStructFields(t, \"model.AuthMethod\", reflect.TypeOf(model.AuthMethod{}), []fieldSpec{\n\t\t{\"ID\", \"string\"},\n\t\t{\"Name\", \"string\"},\n\t\t{\"RequiresSecret\", \"bool\"},\n\t\t{\"IsActive\", \"bool\"},\n\t\t{\"CreatedAt\", \"time.Time\"},\n\t})\n}\n\n// ---- §4: error semantics ----\n\n// expectedSentinels is the frozen, exact set from multi-db-strategy.md §4 —\n// name and wrapped message. ErrAlreadyExists is included: it is a real\n// member of the sentinel set (05's ruling on Oren's original-review finding\n// #1), just not a caller-reachable one — see its doc comment in errors.go,\n// which is a plain-comment criterion this test cannot check and the PO\n// review script checks by hand instead.\nvar expectedSentinels = []struct {\n\tname string\n\terr error\n\tmsg string\n}{\n\t{\"ErrNotFound\", ErrNotFound, \"dao: not found\"},\n\t{\"ErrAlreadyExists\", ErrAlreadyExists, \"dao: already exists\"},\n\t{\"ErrDuplicateUsername\", ErrDuplicateUsername, \"dao: duplicate username\"},\n\t{\"ErrInvalidMethod\", ErrInvalidMethod, \"dao: unknown or inactive auth method\"},\n\t{\"ErrInvalidQuery\", ErrInvalidQuery, \"dao: invalid query\"},\n\t{\"ErrInvalidArgument\", ErrInvalidArgument, \"dao: invalid argument\"},\n\t{\"ErrInvalidCredential\", ErrInvalidCredential, \"dao: credential violates secret-state rules\"},\n}\n\nfunc TestConformance_SentinelMessages(t *testing.T) {\n\tfor _, s := range expectedSentinels {\n\t\tif s.err == nil {\n\t\t\tt.Errorf(\"sentinel %s is nil\", s.name)\n\t\t\tcontinue\n\t\t}\n\t\tif got := s.err.Error(); got != s.msg {\n\t\t\tt.Errorf(\"%s.Error() = %q, want %q\", s.name, got, s.msg)\n\t\t}\n\t}\n}\n\n// TestConformance_SentinelSetIsExactlyTheFrozenSeven parses this package's\n// own errors.go (a syntax parse of our Go source, not of the markdown doc)\n// to catch a sentinel added or removed from the `var (...)` block without\n// this test being updated — reflection alone has no API to enumerate\n// package-level vars, so a static AST walk is the only way to check\n// set-completeness rather than just checking the seven names we already\n// know to look for.\nfunc TestConformance_SentinelSetIsExactlyTheFrozenSeven(t *testing.T) {\n\tfset := token.NewFileSet()\n\tf, err := parser.ParseFile(fset, \"errors.go\", nil, 0)\n\tif err != nil {\n\t\tt.Fatalf(\"parsing errors.go: %v\", err)\n\t}\n\n\tvar found []string\n\tfor _, decl := range f.Decls {\n\t\tgd, ok := decl.(*ast.GenDecl)\n\t\tif !ok || gd.Tok != token.VAR {\n\t\t\tcontinue\n\t\t}\n\t\tfor _, spec := range gd.Specs {\n\t\t\tvs, ok := spec.(*ast.ValueSpec)\n\t\t\tif !ok {\n\t\t\t\tcontinue\n\t\t\t}\n\t\t\tfor i, name := range vs.Names {\n\t\t\t\t// Only count entries actually initialized with errors.New(...)\n\t\t\t\t// or fmt.Errorf(...) — this is a sentinel var block, and we\n\t\t\t\t// want to fail loudly if that assumption ever stops holding\n\t\t\t\t// rather than silently miscounting.\n\t\t\t\tif i >= len(vs.Values) {\n\t\t\t\t\tcontinue\n\t\t\t\t}\n\t\t\t\tcall, ok := vs.Values[i].(*ast.CallExpr)\n\t\t\t\tif !ok {\n\t\t\t\t\tcontinue\n\t\t\t\t}\n\t\t\t\tsel, ok := call.Fun.(*ast.SelectorExpr)\n\t\t\t\tif !ok {\n\t\t\t\t\tcontinue\n\t\t\t\t}\n\t\t\t\tif sel.Sel.Name == \"New\" || sel.Sel.Name == \"Errorf\" {\n\t\t\t\t\tfound = append(found, name.Name)\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\twant := make([]string, len(expectedSentinels))\n\tfor i, s := range expectedSentinels {\n\t\twant[i] = s.name\n\t}\n\tsort.Strings(found)\n\tsort.Strings(want)\n\n\tif len(found) != len(want) {\n\t\tt.Fatalf(\"errors.go declares %d sentinel(s) %v, frozen §4 copy expects %d %v — a sentinel was added or removed without updating this test\", len(found), found, len(want), want)\n\t}\n\tfor i := range want {\n\t\tif found[i] != want[i] {\n\t\t\tt.Fatalf(\"errors.go's sentinel set %v does not match frozen §4 copy %v\", found, want)\n\t\t}\n\t}\n}\n\n// ---- Drift detection on the doc side ----\n\n// expectedContractChecksum is the SHA-256 of multi-db-strategy.md's exact\n// §1–§4 text (from the start of \"## 1. The factory and the composite\" up\n// to, not including, \"## 5. Field-level schema\"), frozen at the time the\n// expected* declarations above were transcribed. Computed with:\n//\n//\tpython3 -c 'import hashlib; c=open(\"05-data-ops/multi-db-strategy.md\").read(); \\\n//\ts=c.index(\"## 1. The factory and the composite\"); e=c.index(\"## 5. Field-level schema\"); \\\n//\tprint(hashlib.sha256(c[s:e].encode()).hexdigest())'\nconst expectedContractChecksum = \"«REDACTED-HEX»\"\n\nconst contractSectionStartMarker = \"## 1. The factory and the composite\"\nconst contractSectionEndMarker = \"## 5. Field-level schema\"\n\n// contractDocPath is relative to this package's directory (internal/dao),\n// which is also `go test`'s working directory for this package.\nconst contractDocPath = \"../../05-data-ops/multi-db-strategy.md\"\n\nfunc TestContractChecksumUpToDate(t *testing.T) {\n\traw, err := os.ReadFile(contractDocPath)\n\tif err != nil {\n\t\tt.Fatalf(\"reading %s: %v — this test cannot verify the frozen copy above is still in sync with 05's contract\", contractDocPath, err)\n\t}\n\tcontent := string(raw)\n\n\tstart := strings.Index(content, contractSectionStartMarker)\n\tend := strings.Index(content, contractSectionEndMarker)\n\tif start == -1 || end == -1 || end <= start {\n\t\tt.Fatalf(\"could not locate §1–§4 markers in %s (start found=%v, end found=%v) — 05's contract structure changed enough that this test can no longer even find the section it's supposed to check\", contractDocPath, start != -1, end != -1)\n\t}\n\n\tsection := content[start:end]\n\tgot := sha256Hex(section)\n\tif got != expectedContractChecksum {\n\t\tt.Fatalf(\n\t\t\t\"05-data-ops/multi-db-strategy.md §1–§4 has changed since this test's expected* \"+\n\t\t\t\t\"declarations were transcribed (checksum got %s, want %s). This test is FAILING \"+\n\t\t\t\t\"LOUDLY rather than silently passing against a stale copy of the contract: a human \"+\n\t\t\t\t\"must re-read the current §1–§4, update the expected* types/messages in this file, \"+\n\t\t\t\t\"and refresh expectedContractChecksum to match.\",\n\t\t\tgot, expectedContractChecksum)\n\t}\n}\n\n// ---- shared assertion helpers ----\n\ntype fieldSpec struct {\n\tName string\n\tType string\n}\n\nfunc assertStructFields(t *testing.T, label string, got reflect.Type, want []fieldSpec) {\n\tt.Helper()\n\tif got.Kind() != reflect.Struct {\n\t\tt.Fatalf(\"%s: not a struct (kind=%s)\", label, got.Kind())\n\t}\n\tif got.NumField() != len(want) {\n\t\tt.Fatalf(\"%s: field count drifted from 05's frozen contract — got %d fields, expected %d\", label, got.NumField(), len(want))\n\t}\n\tfor i, w := range want {\n\t\tf := got.Field(i)\n\t\tif f.Name != w.Name {\n\t\t\tt.Errorf(\"%s: field %d name = %q, want %q (field order or name drifted from 05's contract)\", label, i, f.Name, w.Name)\n\t\t\tcontinue\n\t\t}\n\t\tif f.Type.String() != w.Type {\n\t\t\tt.Errorf(\"%s: field %q type = %s, want %s\", label, f.Name, f.Type.String(), w.Type)\n\t\t}\n\t}\n}\n\nfunc assertInterfaceEquivalent(t *testing.T, label string, got, want reflect.Type) {\n\tt.Helper()\n\tif got.Kind() != reflect.Interface {\n\t\tt.Fatalf(\"%s: actual type is not an interface (kind=%s)\", label, got.Kind())\n\t}\n\tif want.Kind() != reflect.Interface {\n\t\tt.Fatalf(\"%s: expected type is not an interface (kind=%s)\", label, want.Kind())\n\t}\n\tif got.NumMethod() != want.NumMethod() {\n\t\tt.Fatalf(\"%s: method count drifted from 05's frozen contract — got %d method(s), expected %d\", label, got.NumMethod(), want.NumMethod())\n\t}\n\t// Mutual assignability of two interface types holds iff their method\n\t// sets are identical (same names, same signatures) — this is Go's own\n\t// interface-satisfaction rule, checked structurally by reflect, not\n\t// stringly.\n\tif !got.AssignableTo(want) {\n\t\tt.Fatalf(\"%s: does not satisfy the frozen §1/§3 contract shape (missing or resignatured method) — got=%s want=%s\", label, got.String(), want.String())\n\t}\n\tif !want.AssignableTo(got) {\n\t\tt.Fatalf(\"%s: has grown a method beyond the frozen §1/§3 contract shape — got=%s want=%s\", label, got.String(), want.String())\n\t}\n}\nGOEOF\necho \"written\""
}written
{
"command": "cd /Users/warrenthompson/Source/LoginID-worktrees/LT-35 && python3 - << 'EOF'\nimport re\npath = \"internal/dao/conformance_test.go\"\nwith open(path) as f:\n content = f.read()\n\n# add imports\ncontent = content.replace(\n 'import (\\n\\t\"context\"\\n\\t\"go/ast\"',\n 'import (\\n\\t\"context\"\\n\\t\"crypto/sha256\"\\n\\t\"encoding/hex\"\\n\\t\"go/ast\"'\n)\n\n# add helper function at end\ncontent += '''\nfunc sha256Hex(s string) string {\n\tsum := sha256.Sum256([]byte(s))\n\treturn hex.EncodeToString(sum[:])\n}\n'''\n\nwith open(path, \"w\") as f:\n f.write(content)\nprint(\"patched\")\nEOF"
}patched Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery
{
"command": "cd /Users/warrenthompson/Source/LoginID-worktrees/LT-35 && go build ./... 2>&1 && go vet ./... 2>&1 && go test ./internal/dao/... -v 2>&1 | tail -100"
}=== RUN TestConformance_Repository --- PASS: TestConformance_Repository (0.00s) === RUN TestConformance_SubInterfaces --- PASS: TestConformance_SubInterfaces (0.00s) === RUN TestConformance_ProfileQuery --- PASS: TestConformance_ProfileQuery (0.00s) === RUN TestConformance_RetentionTypes --- PASS: TestConformance_RetentionTypes (0.00s) === RUN TestConformance_DomainTypes --- PASS: TestConformance_DomainTypes (0.00s) === RUN TestConformance_SentinelMessages --- PASS: TestConformance_SentinelMessages (0.00s) === RUN TestConformance_SentinelSetIsExactlyTheFrozenSeven --- PASS: TestConformance_SentinelSetIsExactlyTheFrozenSeven (0.00s) === RUN TestContractChecksumUpToDate --- PASS: TestContractChecksumUpToDate (0.00s) === RUN TestValidateCreateID --- PASS: TestValidateCreateID (0.00s) === RUN TestValidateProfilePointers_Phone --- PASS: TestValidateProfilePointers_Phone (0.00s) === RUN TestValidateProfilePointers_StreetAddress --- PASS: TestValidateProfilePointers_StreetAddress (0.00s) === RUN TestValidateProfilePointers_Locality --- PASS: TestValidateProfilePointers_Locality (0.00s) === RUN TestValidateProfilePointers_Region --- PASS: TestValidateProfilePointers_Region (0.00s) === RUN TestValidateProfilePointers_PostalCode --- PASS: TestValidateProfilePointers_PostalCode (0.00s) === RUN TestValidateProfilePointers_Country --- PASS: TestValidateProfilePointers_Country (0.00s) === RUN TestValidateCredentialPointers_HashAlgo --- PASS: TestValidateCredentialPointers_HashAlgo (0.00s) === RUN TestPrepareCreateProfileWithCredential_ClearsCallerSuppliedUserID --- PASS: TestPrepareCreateProfileWithCredential_ClearsCallerSuppliedUserID (0.00s) PASS ok loginid-takehome/internal/dao 0.252s Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery
{
"command": "cd /Users/warrenthompson/Source/LoginID-worktrees/LT-35 && cp internal/dao/repository.go /tmp/repository.go.bak\n# 1. break interface method count\npython3 - << 'EOF'\npath = \"internal/dao/repository.go\"\nwith open(path) as f: c = f.read()\nc = c.replace(\"Close() error\\n}\", \"Close() error\\n\\tExtraMethod() error\\n}\", 1)\nwith open(path, \"w\") as f: f.write(c)\nEOF\ngo test ./internal/dao/... -run TestConformance_Repository -v 2>&1 | tail -20\ncp /tmp/repository.go.bak internal/dao/repository.go"
}=== RUN TestConformance_Repository
conformance_test.go:83: dao.Repository: method count drifted from 05's frozen contract — got 8 method(s), expected 7
--- FAIL: TestConformance_Repository (0.00s)
FAIL
FAIL loginid-takehome/internal/dao 0.149s
FAIL
Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery{
"command": "cd /Users/warrenthompson/Source/LoginID-worktrees/LT-35\ncp internal/dao/errors.go /tmp/errors.go.bak\npython3 - << 'EOF'\npath = \"internal/dao/errors.go\"\nwith open(path) as f: c = f.read()\nc = c.replace('ErrInvalidCredential = errors.New(\"dao: credential violates secret-state rules\")\\n)',\n 'ErrInvalidCredential = errors.New(\"dao: credential violates secret-state rules\")\\n\\tErrSomethingNew = errors.New(\"dao: unplanned sentinel\")\\n)')\nwith open(path, \"w\") as f: f.write(c)\nEOF\ngo test ./internal/dao/... -run TestConformance_SentinelSetIsExactlyTheFrozenSeven -v 2>&1 | tail -20\ncp /tmp/errors.go.bak internal/dao/errors.go\n\necho \"--- checksum drift ---\"\nsed -i.bak 's/## 1. The factory and the composite/## 1. The factory and the composite (edited)/' 05-data-ops/multi-db-strategy.md\ngo test ./internal/dao/... -run TestContractChecksumUpToDate -v 2>&1 | tail -20\nmv 05-data-ops/multi-db-strategy.md.bak 05-data-ops/multi-db-strategy.md\ngo build ./... && go test ./internal/dao/... 2>&1 | tail -5"
}=== RUN TestConformance_SentinelSetIsExactlyTheFrozenSeven
conformance_test.go:285: errors.go declares 8 sentinel(s) [ErrAlreadyExists ErrDuplicateUsername ErrInvalidArgument ErrInvalidCredential ErrInvalidMethod ErrInvalidQuery ErrNotFound ErrSomethingNew], frozen §4 copy expects 7 [ErrAlreadyExists ErrDuplicateUsername ErrInvalidArgument ErrInvalidCredential ErrInvalidMethod ErrInvalidQuery ErrNotFound] — a sentinel was added or removed without updating this test
--- FAIL: TestConformance_SentinelSetIsExactlyTheFrozenSeven (0.00s)
FAIL
FAIL loginid-takehome/internal/dao 0.153s
FAIL
--- checksum drift ---
=== RUN TestContractChecksumUpToDate
conformance_test.go:329: 05-data-ops/multi-db-strategy.md §1–§4 has changed since this test's expected* declarations were transcribed (checksum got «REDACTED-HEX», want «REDACTED-HEX»). This test is FAILING LOUDLY rather than silently passing against a stale copy of the contract: a human must re-read the current §1–§4, update the expected* types/messages in this file, and refresh expectedContractChecksum to match.
--- FAIL: TestContractChecksumUpToDate (0.00s)
FAIL
FAIL loginid-takehome/internal/dao 0.082s
FAIL
ok loginid-takehome/internal/dao 0.078s
Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery{
"command": "cd /Users/warrenthompson/Source/LoginID-worktrees/LT-35 && gofmt -l . && go vet ./... && git status --short"
}?? internal/dao/ ?? internal/model/ Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery
{
"command": "cd /Users/warrenthompson/Source/LoginID-worktrees/LT-35 && git status && git log --oneline -1 -- internal/dao 2>&1 && cat .gitignore 2>/dev/null"
}On branch feature/LT-35 Untracked files: (use "git add <file>..." to include in what will be committed) internal/dao/ internal/model/ nothing added to commit but untracked files present (use "git add" to track) # Local-only Claude Code state — never part of the submission .claude/settings.local.json .claude/scheduled_tasks.lock *.lock # Background job output scripts/portrait-queue.log # OS noise .DS_Store Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery
{
"command": "ls /Users/warrenthompson/Source/LoginID-worktrees/ 2>&1"
}checksum-fix LT-36 LT-37 LT-45 LT-47
{
"command": "cd /Users/warrenthompson/Source/LoginID-worktrees/LT-36 && git log --oneline -5 && git branch --show-current && find internal/dao -maxdepth 2 -type d; ls internal/dao"
}f8ac598 LT-36: Postgres/CockroachDB DAO implementation 3af41d4 Merge PR #3: refresh LT-35 conformance checksum after contract amendments 78fa05e fix: refresh LT-35 conformance checksum after contract amendments 3397c26 Loop iterations 4–8: no-re-ask rule, LT-36/37/38 refinement, deploy-path decision e4c7945 Refinement records for LT-34 and LT-35 (Product Owner + research team) feature/LT-36 internal/dao internal/dao/postgres postgres conformance_test.go errors.go factory.go query.go repository.go retention.go validate.go validate_query.go validate_test.go Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery
{
"command": "cd /Users/warrenthompson/Source/LoginID-worktrees/LT-36 && ls internal/dao/postgres"
}composite.go credentials.go errors.go errors_test.go integration_test.go like.go methods.go postgres.go profiles.go register.go retry.go retry_test.go testutil_test.go Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery
{
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-36/internal/dao/postgres/composite.go"
}1 package postgres
2
3 import (
4 "context"
5 "database/sql"
6 "time"
7
8 "loginid-takehome/internal/dao"
9 "loginid-takehome/internal/model"
10 )
11
12 // CreateProfileWithCredential writes both rows in one transaction (§3b).
13 // c.UserID is ignored on input and set from the profile just created; on
14 // any failure neither row exists.
15 func (r *repository) CreateProfileWithCredential(ctx context.Context, p *model.UserProfile, c *model.UserCredential) (*model.UserProfile, *model.UserCredential, error) {
16 if err := dao.ValidateCreateID(p.ID); err != nil {
17 return nil, nil, err
18 }
19 if err := dao.ValidateProfilePointers(p); err != nil {
20 return nil, nil, err
21 }
22 if err := dao.ValidateCreateID(c.ID); err != nil {
23 return nil, nil, err
24 }
25 dao.PrepareCreateProfileWithCredential(c)
26 if err := dao.ValidateCredentialPointers(c); err != nil {
27 return nil, nil, err
28 }
29
30 var (
31 createdProfile *model.UserProfile
32 createdCredential *model.UserCredential
33 )
34 err := r.withRetry(ctx, func(tx *sql.Tx) error {
35 row := tx.QueryRowContext(ctx, `
36 INSERT INTO user_profile (name, phone, street_address, locality, region, postal_code, country, source)
37 VALUES ($1, $2, $3, $4, $5, $6, $7, $8)
38 RETURNING `+profileColumns,
39 p.Name, p.Phone, p.StreetAddress, p.Locality, p.Region, p.PostalCode, p.Country, p.Source)
40 gotProfile, err := scanProfile(row.Scan)
41 if err != nil {
42 return err
43 }
44
45 crow := tx.QueryRowContext(ctx, `
46 INSERT INTO user_credential (user_id, username, method_id, secret, secret_state, hash_algo, hash_cost)
47 VALUES ($1, $2, $3, $4, $5, $6, $7)
48 RETURNING `+credentialColumns,
49 gotProfile.ID, c.Username, c.MethodID, c.Secret, c.SecretState, c.HashAlgo, c.HashCost)
50 gotCredential, err := scanCredential(crow.Scan)
51 if err != nil {
52 return err
53 }
54
55 createdProfile = gotProfile
56 createdCredential = gotCredential
57 return nil
58 })
59 if err != nil {
60 return nil, nil, err
61 }
62 return createdProfile, createdCredential, nil
63 }
64
65 // clockColumnFor and the orphan class's extra predicate, per
66 // pii-governance.md: "direct" and "idp_cache" (referenced by a credential)
67 // key on updated_at; "idp_cache_orphan" (an idp_cache row nothing
68 // references) keys on created_at specifically so re-reads can't refresh
69 // its own expiry.
70 func clockColumnFor(class dao.RetentionClass) (column string, extraWhere string, ok bool) {
71 switch class {
72 case dao.RetentionDirect:
73 return "updated_at", "source = 'direct'", true
74 case dao.RetentionIDPCache:
75 return "updated_at", "source = 'idp_cache' AND EXISTS (SELECT 1 FROM user_credential WHERE user_credential.user_id = user_profile.id)", true
76 case dao.RetentionIDPCacheOrphan:
77 return "created_at", "source = 'idp_cache' AND NOT EXISTS (SELECT 1 FROM user_credential WHERE user_credential.user_id = user_profile.id)", true
78 default:
79 return "", "", false
80 }
81 }
82
83 // DeleteExpired batches one retention class per call (§3c). Bounded by
84 // maxRows, one transaction per batch — never one per sweep. Never call
85 // with a request-scoped context (enforced by the caller, per §3c).
86 func (r *repository) DeleteExpired(ctx context.Context, class dao.RetentionClass, olderThan time.Time, maxRows int) (dao.SweepResult, error) {
87 if maxRows < 1 || maxRows > 10_000 {
88 return dao.SweepResult{}, dao.ErrInvalidArgument
89 }
90 clockColumn, extraWhere, ok := clockColumnFor(class)
91 if !ok {
92 return dao.SweepResult{}, dao.ErrInvalidArgument
93 }
94
95 var result dao.SweepResult
96 err := r.withRetry(ctx, func(tx *sql.Tx) error {
97 rows, err := tx.QueryContext(ctx,
98 "SELECT id FROM user_profile WHERE "+extraWhere+" AND "+clockColumn+" < $1 LIMIT $2",
99 olderThan, maxRows)
100 if err != nil {
101 return translateError(err)
102 }
103 var ids []string
104 for rows.Next() {
105 var id string
106 if err := rows.Scan(&id); err != nil {
107 rows.Close()
108 return translateError(err)
109 }
110 ids = append(ids, id)
111 }
112 rows.Close()
113 if err := rows.Err(); err != nil {
114 return translateError(err)
115 }
116
117 examined := len(ids)
118 deleted := 0
119 for _, id := range ids {
120 res, err := tx.ExecContext(ctx, "DELETE FROM user_profile WHERE id = $1", id)
121 if err != nil {
122 return translateError(err)
123 }
124 n, err := res.RowsAffected()
125 if err != nil {
126 return translateError(err)
127 }
128 if n == 0 {
129 continue
130 }
131 deleted++
132 if _, err := tx.ExecContext(ctx, `
133 INSERT INTO deletion_log (profile_id, source, reason, external_ref, job_run_id, deleted_at)
134 VALUES ($1, $2, 'retention_sweep', NULL, NULL, now())`,
135 id, string(class)); err != nil {
136 return translateError(err)
137 }
138 }
139
140 // OldestSurvivingAt: the clock-column value of the oldest row
141 // remaining in this class after this call — nil only when the
142 // class has zero rows remaining, never for "nothing was old
143 // enough" (§3c).
144 var oldest sql.NullTime
145 remainingQuery := "SELECT MIN(" + clockColumn + ") FROM user_profile WHERE " + extraWhere
146 if err := tx.QueryRowContext(ctx, remainingQuery).Scan(&oldest); err != nil {
147 return translateError(err)
148 }
149 var oldestPtr *time.Time
150 if oldest.Valid {
151 t := oldest.Time
152 oldestPtr = &t
153 }
154
155 result = dao.SweepResult{
156 RowsExamined: examined,
157 RowsDeleted: deleted,
158 OldestSurvivingAt: oldestPtr,
159 Drained: examined < maxRows,
160 }
161 return nil
162 })
163 if err != nil {
164 return dao.SweepResult{}, err
165 }
166 return result, nil
167 }
168
169 // DeleteProfile is the subject-deletion path. reason is asserted
170 // internally as "subject_request", never caller-supplied (§3c).
171 func (r *repository) DeleteProfile(ctx context.Context, id string, externalRef *string) error {
172 return r.withRetry(ctx, func(tx *sql.Tx) error {
173 var source string
174 if err := tx.QueryRowContext(ctx, "SELECT source FROM user_profile WHERE id = $1", id).Scan(&source); err != nil {
175 if err == sql.ErrNoRows {
176 return dao.ErrNotFound
177 }
178 return translateError(err)
179 }
180
181 res, err := tx.ExecContext(ctx, "DELETE FROM user_profile WHERE id = $1", id)
182 if err != nil {
183 return translateError(err)
184 }
185 n, err := res.RowsAffected()
186 if err != nil {
187 return translateError(err)
188 }
189 if n == 0 {
190 return dao.ErrNotFound
191 }
192
193 if _, err := tx.ExecContext(ctx, `
194 INSERT INTO deletion_log (profile_id, source, reason, external_ref, job_run_id, deleted_at)
195 VALUES ($1, $2, 'subject_request', $3, NULL, now())`,
196 id, source, externalRef); err != nil {
197 return translateError(err)
198 }
199 return nil
200 })
201 }
202 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-36/internal/dao/postgres/postgres.go"
}1 // Package postgres implements internal/dao's Repository composite for
2 // both PostgreSQL and CockroachDB, per 05-data-ops/multi-db-strategy.md.
3 // One package serves both engines; the retry seam in retry.go is what
4 // makes that safe (§4, "The write-path retry seam").
5 package postgres
6
7 import (
8 "context"
9 "database/sql"
10 "fmt"
11
12 _ "github.com/jackc/pgx/v5/stdlib" // registers the "pgx" database/sql driver
13
14 "loginid-takehome/internal/dao"
15 )
16
17 // engine distinguishes the two driver strings that select this package —
18 // "postgres" and "cockroachdb" — because withRetry needs to know which one
19 // it's talking to (§4: "That field is the entire reason the two driver
20 // strings are distinct despite selecting the same package").
21 type engine string
22
23 const (
24 enginePostgres engine = "postgres"
25 engineCockroach engine = "cockroachdb"
26 )
27
28 type repository struct {
29 db *sql.DB
30 engine engine
31 }
32
33 // New opens a connection pool against dsn for the given engine ("postgres"
34 // or "cockroachdb"). Registered with internal/dao's factory in register.go.
35 func New(dsn string, e engine) (dao.Repository, error) {
36 db, err := sql.Open("pgx", dsn)
37 if err != nil {
38 return nil, fmt.Errorf("postgres: opening connection: %w", err)
39 }
40 return &repository{db: db, engine: e}, nil
41 }
42
43 func (r *repository) Profiles() dao.ProfileRepository { return profileRepo{r} }
44 func (r *repository) Credentials() dao.CredentialRepository { return credentialRepo{r} }
45 func (r *repository) Methods() dao.AuthMethodRepository { return authMethodRepo{r} }
46
47 func (r *repository) Close() error { return r.db.Close() }
48
49 // withRetry runs fn inside a transaction, retrying on a genuine SQLSTATE
50 // 40001 (serialization failure) only when r.engine is "cockroachdb" — on
51 // "postgres" it runs fn exactly once. See retry.go.
52 func (r *repository) withRetry(ctx context.Context, fn func(*sql.Tx) error) error {
53 return withRetry(ctx, r.db, r.engine, fn)
54 }
55 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-36/internal/dao/postgres/retry.go"
}1 package postgres
2
3 import (
4 "context"
5 "database/sql"
6 "errors"
7
8 "github.com/jackc/pgx/v5/pgconn"
9 )
10
11 // sqlstateSerializationFailure is the SQLSTATE CockroachDB (and Postgres,
12 // though Postgres at READ COMMITTED never produces it) returns when a
13 // transaction must be retried, per multi-db-strategy.md §4.
14 const sqlstateSerializationFailure = "40001"
15
16 const maxRetries = 5
17
18 // withRetry is the unexported helper inside this package that every write
19 // method runs its statement inside (§4, "Where the wrapper sits"). It is
20 // NOT in the composite and NOT above the interface boundary — it wraps a
21 // single transaction attempt and retries only when engine is
22 // "cockroachdb" and the failure is a genuine SQLSTATE 40001. On
23 // "postgres" it calls fn exactly once. Search never calls this — it's
24 // read-only and never encounters 40001 (§4).
25 func withRetry(ctx context.Context, db *sql.DB, e engine, fn func(*sql.Tx) error) error {
26 return retryLoop(e, func() error {
27 return runOnce(ctx, db, fn)
28 })
29 }
30
31 // retryLoop is the pure engine-conditional retry policy, separated from
32 // transaction management so it's unit-testable without a live *sql.DB.
33 func retryLoop(e engine, attempt func() error) error {
34 attempts := 1
35 if e == engineCockroach {
36 attempts = maxRetries
37 }
38
39 var lastErr error
40 for i := 0; i < attempts; i++ {
41 lastErr = attempt()
42 if lastErr == nil {
43 return nil
44 }
45 if e != engineCockroach || !isRetryable(lastErr) {
46 return lastErr
47 }
48 // Retryable on CockroachDB: loop and try again. No backoff sleep
49 // here — a serialization failure is not a load signal the way a
50 // connection error is, and 05's contract does not ask for one;
51 // keeping the retry bounded (maxRetries) is what prevents an
52 // unbounded loop.
53 }
54 return lastErr
55 }
56
57 func runOnce(ctx context.Context, db *sql.DB, fn func(*sql.Tx) error) error {
58 tx, err := db.BeginTx(ctx, nil)
59 if err != nil {
60 return err
61 }
62 if err := fn(tx); err != nil {
63 _ = tx.Rollback()
64 return err
65 }
66 return tx.Commit()
67 }
68
69 // isRetryable reports whether err is a genuine SQLSTATE 40001, not a
70 // string match on any error message.
71 func isRetryable(err error) bool {
72 var pgErr *pgconn.PgError
73 if errors.As(err, &pgErr) {
74 return pgErr.Code == sqlstateSerializationFailure
75 }
76 return false
77 }
78 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-36/internal/dao/postgres/profiles.go"
}1 package postgres
2
3 import (
4 "context"
5 "database/sql"
6 "errors"
7 "fmt"
8 "strings"
9
10 "loginid-takehome/internal/dao"
11 "loginid-takehome/internal/model"
12 )
13
14 type profileRepo struct{ r *repository }
15
16 const profileColumns = "id, name, phone, street_address, locality, region, postal_code, country, source, created_at, updated_at"
17
18 func scanProfile(scan func(dest ...any) error) (*model.UserProfile, error) {
19 var p model.UserProfile
20 err := scan(&p.ID, &p.Name, &p.Phone, &p.StreetAddress, &p.Locality, &p.Region, &p.PostalCode, &p.Country, &p.Source, &p.CreatedAt, &p.UpdatedAt)
21 if err != nil {
22 if errors.Is(err, sql.ErrNoRows) {
23 return nil, dao.ErrNotFound
24 }
25 return nil, translateError(err)
26 }
27 return &p, nil
28 }
29
30 func (pr profileRepo) Get(ctx context.Context, id string) (*model.UserProfile, error) {
31 row := pr.r.db.QueryRowContext(ctx, "SELECT "+profileColumns+" FROM user_profile WHERE id = $1", id)
32 return scanProfile(row.Scan)
33 }
34
35 func (pr profileRepo) Search(ctx context.Context, q dao.ProfileQuery) ([]model.UserProfile, int, error) {
36 if err := dao.ValidateProfileQuery(q); err != nil {
37 return nil, 0, err
38 }
39
40 var where []string
41 var args []any
42 arg := func(v any) string {
43 args = append(args, v)
44 return fmt.Sprintf("$%d", len(args))
45 }
46
47 if q.Name != nil {
48 where = append(where, "LOWER(name) LIKE LOWER("+arg("%"+escapeLike(*q.Name)+"%")+") ESCAPE '\\'")
49 }
50 if q.Phone != nil {
51 where = append(where, "phone = "+arg(*q.Phone))
52 }
53 if q.Region != nil {
54 where = append(where, "LOWER(region) = LOWER("+arg(*q.Region)+")")
55 }
56 if q.Country != nil {
57 where = append(where, "country = "+arg(strings.ToUpper(*q.Country)))
58 }
59
60 whereClause := ""
61 if len(where) > 0 {
62 whereClause = " WHERE " + strings.Join(where, " AND ")
63 }
64
65 var total int
66 countQuery := "SELECT COUNT(*) FROM user_profile" + whereClause
67 if err := pr.r.db.QueryRowContext(ctx, countQuery, args...).Scan(&total); err != nil {
68 return nil, 0, translateError(err)
69 }
70
71 limit := dao.EffectiveLimit(q)
72 limitArg := arg(limit)
73 offsetArg := arg(q.Offset)
74 selectQuery := "SELECT " + profileColumns + " FROM user_profile" + whereClause +
75 ` ORDER BY LOWER(name) COLLATE "C" ASC, id ASC LIMIT ` + limitArg + " OFFSET " + offsetArg
76
77 rows, err := pr.r.db.QueryContext(ctx, selectQuery, args...)
78 if err != nil {
79 return nil, 0, translateError(err)
80 }
81 defer rows.Close()
82
83 var results []model.UserProfile
84 for rows.Next() {
85 p, err := scanProfile(rows.Scan)
86 if err != nil {
87 return nil, 0, err
88 }
89 results = append(results, *p)
90 }
91 if err := rows.Err(); err != nil {
92 return nil, 0, translateError(err)
93 }
94 return results, total, nil
95 }
96
97 func (pr profileRepo) Create(ctx context.Context, p *model.UserProfile) (*model.UserProfile, error) {
98 if err := dao.ValidateCreateID(p.ID); err != nil {
99 return nil, err
100 }
101 if err := dao.ValidateProfilePointers(p); err != nil {
102 return nil, err
103 }
104
105 var created *model.UserProfile
106 err := pr.r.withRetry(ctx, func(tx *sql.Tx) error {
107 row := tx.QueryRowContext(ctx, `
108 INSERT INTO user_profile (name, phone, street_address, locality, region, postal_code, country, source)
109 VALUES ($1, $2, $3, $4, $5, $6, $7, $8)
110 RETURNING `+profileColumns,
111 p.Name, p.Phone, p.StreetAddress, p.Locality, p.Region, p.PostalCode, p.Country, p.Source)
112 got, err := scanProfile(row.Scan)
113 if err != nil {
114 return err
115 }
116 created = got
117 return nil
118 })
119 if err != nil {
120 return nil, err
121 }
122 return created, nil
123 }
124
125 func (pr profileRepo) Update(ctx context.Context, p *model.UserProfile) (*model.UserProfile, error) {
126 if err := dao.ValidateProfilePointers(p); err != nil {
127 return nil, err
128 }
129
130 var updated *model.UserProfile
131 err := pr.r.withRetry(ctx, func(tx *sql.Tx) error {
132 row := tx.QueryRowContext(ctx, `
133 UPDATE user_profile
134 SET name = $1, phone = $2, street_address = $3, locality = $4, region = $5,
135 postal_code = $6, country = $7, source = $8, updated_at = now()
136 WHERE id = $9
137 RETURNING `+profileColumns,
138 p.Name, p.Phone, p.StreetAddress, p.Locality, p.Region, p.PostalCode, p.Country, p.Source, p.ID)
139 got, err := scanProfile(row.Scan)
140 if err != nil {
141 return err
142 }
143 updated = got
144 return nil
145 })
146 if err != nil {
147 return nil, err
148 }
149 return updated, nil
150 }
151
152 // Upsert's DO UPDATE SET list deliberately excludes created_at — it is set
153 // only on insert, per 05's Oren-finding-#3 ruling (§3a note 3). A
154 // re-hydration Upsert must never reset the original creation timestamp.
155 func (pr profileRepo) Upsert(ctx context.Context, p *model.UserProfile) (*model.UserProfile, error) {
156 if err := dao.ValidateProfilePointers(p); err != nil {
157 return nil, err
158 }
159
160 var result *model.UserProfile
161 err := pr.r.withRetry(ctx, func(tx *sql.Tx) error {
162 row := tx.QueryRowContext(ctx, `
163 INSERT INTO user_profile (id, name, phone, street_address, locality, region, postal_code, country, source)
164 VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)
165 ON CONFLICT (id) DO UPDATE SET
166 name = EXCLUDED.name,
167 phone = EXCLUDED.phone,
168 street_address = EXCLUDED.street_address,
169 locality = EXCLUDED.locality,
170 region = EXCLUDED.region,
171 postal_code = EXCLUDED.postal_code,
172 country = EXCLUDED.country,
173 source = EXCLUDED.source,
174 updated_at = now()
175 RETURNING `+profileColumns,
176 p.ID, p.Name, p.Phone, p.StreetAddress, p.Locality, p.Region, p.PostalCode, p.Country, p.Source)
177 got, err := scanProfile(row.Scan)
178 if err != nil {
179 return err
180 }
181 result = got
182 return nil
183 })
184 if err != nil {
185 return nil, err
186 }
187 return result, nil
188 }
189
190 func (pr profileRepo) Delete(ctx context.Context, id string) error {
191 return pr.r.withRetry(ctx, func(tx *sql.Tx) error {
192 res, err := tx.ExecContext(ctx, "DELETE FROM user_profile WHERE id = $1", id)
193 if err != nil {
194 return translateError(err)
195 }
196 n, err := res.RowsAffected()
197 if err != nil {
198 return translateError(err)
199 }
200 if n == 0 {
201 return dao.ErrNotFound
202 }
203 return nil
204 })
205 }
206 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-36/internal/dao/postgres/credentials.go"
}1 package postgres
2
3 import (
4 "context"
5 "database/sql"
6 "errors"
7 "strings"
8
9 "loginid-takehome/internal/dao"
10 "loginid-takehome/internal/model"
11 )
12
13 type credentialRepo struct{ r *repository }
14
15 const credentialColumns = "id, user_id, username, method_id, secret, secret_state, hash_algo, hash_cost, created_at, updated_at"
16
17 func scanCredential(scan func(dest ...any) error) (*model.UserCredential, error) {
18 var c model.UserCredential
19 err := scan(&c.ID, &c.UserID, &c.Username, &c.MethodID, &c.Secret, &c.SecretState, &c.HashAlgo, &c.HashCost, &c.CreatedAt, &c.UpdatedAt)
20 if err != nil {
21 if errors.Is(err, sql.ErrNoRows) {
22 return nil, dao.ErrNotFound
23 }
24 return nil, translateError(err)
25 }
26 return &c, nil
27 }
28
29 // GetByUsername lower-cases its input inside the DAO, matching the UNIQUE
30 // on lower(username) index — callers pass whatever the user typed.
31 func (cr credentialRepo) GetByUsername(ctx context.Context, username string) (*model.UserCredential, error) {
32 row := cr.r.db.QueryRowContext(ctx, "SELECT "+credentialColumns+" FROM user_credential WHERE LOWER(username) = LOWER($1)", strings.ToLower(username))
33 return scanCredential(row.Scan)
34 }
35
36 func (cr credentialRepo) ListByUserID(ctx context.Context, userID string) ([]model.UserCredential, error) {
37 rows, err := cr.r.db.QueryContext(ctx, "SELECT "+credentialColumns+" FROM user_credential WHERE user_id = $1", userID)
38 if err != nil {
39 return nil, translateError(err)
40 }
41 defer rows.Close()
42
43 var results []model.UserCredential
44 for rows.Next() {
45 c, err := scanCredential(rows.Scan)
46 if err != nil {
47 return nil, err
48 }
49 results = append(results, *c)
50 }
51 return results, rows.Err()
52 }
53
54 func (cr credentialRepo) Create(ctx context.Context, c *model.UserCredential) (*model.UserCredential, error) {
55 if err := dao.ValidateCreateID(c.ID); err != nil {
56 return nil, err
57 }
58 if err := dao.ValidateCredentialPointers(c); err != nil {
59 return nil, err
60 }
61
62 var created *model.UserCredential
63 err := cr.r.withRetry(ctx, func(tx *sql.Tx) error {
64 row := tx.QueryRowContext(ctx, `
65 INSERT INTO user_credential (user_id, username, method_id, secret, secret_state, hash_algo, hash_cost)
66 VALUES ($1, $2, $3, $4, $5, $6, $7)
67 RETURNING `+credentialColumns,
68 c.UserID, c.Username, c.MethodID, c.Secret, c.SecretState, c.HashAlgo, c.HashCost)
69 got, err := scanCredential(row.Scan)
70 if err != nil {
71 return err
72 }
73 created = got
74 return nil
75 })
76 if err != nil {
77 return nil, err
78 }
79 return created, nil
80 }
81
82 func (cr credentialRepo) Update(ctx context.Context, c *model.UserCredential) (*model.UserCredential, error) {
83 if err := dao.ValidateCredentialPointers(c); err != nil {
84 return nil, err
85 }
86
87 var updated *model.UserCredential
88 err := cr.r.withRetry(ctx, func(tx *sql.Tx) error {
89 row := tx.QueryRowContext(ctx, `
90 UPDATE user_credential
91 SET username = $1, method_id = $2, secret = $3, secret_state = $4,
92 hash_algo = $5, hash_cost = $6, updated_at = now()
93 WHERE id = $7
94 RETURNING `+credentialColumns,
95 c.Username, c.MethodID, c.Secret, c.SecretState, c.HashAlgo, c.HashCost, c.ID)
96 got, err := scanCredential(row.Scan)
97 if err != nil {
98 return err
99 }
100 updated = got
101 return nil
102 })
103 if err != nil {
104 return nil, err
105 }
106 return updated, nil
107 }
108
109 func (cr credentialRepo) Delete(ctx context.Context, id string) error {
110 return cr.r.withRetry(ctx, func(tx *sql.Tx) error {
111 res, err := tx.ExecContext(ctx, "DELETE FROM user_credential WHERE id = $1", id)
112 if err != nil {
113 return translateError(err)
114 }
115 n, err := res.RowsAffected()
116 if err != nil {
117 return translateError(err)
118 }
119 if n == 0 {
120 return dao.ErrNotFound
121 }
122 return nil
123 })
124 }
125 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-36/internal/dao/postgres/methods.go"
}1 package postgres
2
3 import (
4 "context"
5 "database/sql"
6 "errors"
7
8 "loginid-takehome/internal/dao"
9 "loginid-takehome/internal/model"
10 )
11
12 type authMethodRepo struct{ r *repository }
13
14 const authMethodColumns = "id, name, requires_secret, is_active, created_at"
15
16 func scanAuthMethod(scan func(dest ...any) error) (*model.AuthMethod, error) {
17 var m model.AuthMethod
18 err := scan(&m.ID, &m.Name, &m.RequiresSecret, &m.IsActive, &m.CreatedAt)
19 if err != nil {
20 if errors.Is(err, sql.ErrNoRows) {
21 return nil, dao.ErrNotFound
22 }
23 return nil, translateError(err)
24 }
25 return &m, nil
26 }
27
28 func (ar authMethodRepo) Get(ctx context.Context, id string) (*model.AuthMethod, error) {
29 row := ar.r.db.QueryRowContext(ctx, "SELECT "+authMethodColumns+" FROM auth_method WHERE id = $1", id)
30 return scanAuthMethod(row.Scan)
31 }
32
33 func (ar authMethodRepo) GetByName(ctx context.Context, name string) (*model.AuthMethod, error) {
34 row := ar.r.db.QueryRowContext(ctx, "SELECT "+authMethodColumns+" FROM auth_method WHERE name = $1", name)
35 return scanAuthMethod(row.Scan)
36 }
37
38 func (ar authMethodRepo) List(ctx context.Context, activeOnly bool) ([]model.AuthMethod, error) {
39 query := "SELECT " + authMethodColumns + " FROM auth_method"
40 if activeOnly {
41 query += " WHERE is_active = true"
42 }
43 rows, err := ar.r.db.QueryContext(ctx, query)
44 if err != nil {
45 return nil, translateError(err)
46 }
47 defer rows.Close()
48
49 var results []model.AuthMethod
50 for rows.Next() {
51 m, err := scanAuthMethod(rows.Scan)
52 if err != nil {
53 return nil, err
54 }
55 results = append(results, *m)
56 }
57 return results, rows.Err()
58 }
59 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-36/internal/dao/postgres/errors.go"
}1 package postgres
2
3 import (
4 "database/sql"
5 "errors"
6 "fmt"
7
8 "github.com/jackc/pgx/v5/pgconn"
9
10 "loginid-takehome/internal/dao"
11 )
12
13 // Constraint names, pinned because they are our own DDL artifact, not the
14 // engine's (multi-db-strategy.md §4). Named identically in this package's
15 // schema and referenced here so translation never depends on table/column
16 // position, which can drift independently between backends.
17 const (
18 constraintUsernameUnique = "uq_user_credential_username"
19 constraintMethodFK = "fk_user_credential_method"
20 constraintSecretState = "ck_user_credential_secret_state"
21 )
22
23 const (
24 sqlstateUniqueViolation = "23505"
25 sqlstateForeignKeyViolation = "23503"
26 sqlstateCheckViolation = "23514"
27 )
28
29 // translateError maps a driver error to one of the seven dao sentinels by
30 // structured SQLSTATE code plus our own constraint name — never by
31 // matching free-text error messages (multi-db-strategy.md §4). Anything
32 // that isn't a recognized driver error is wrapped with %w and passed
33 // through. The raw driver error (including any Postgres DETAIL/Key(...)=
34 // (...) text) is deliberately never included in the sentinel path — only
35 // the structured code and constraint name are inspected, and neither is
36 // echoed into the returned sentinel, so a caller logging the sentinel
37 // never logs PII (decisions/error-semantics.md F50).
38 func translateError(err error) error {
39 if err == nil {
40 return nil
41 }
42 if errors.Is(err, sql.ErrNoRows) {
43 return dao.ErrNotFound
44 }
45
46 var pgErr *pgconn.PgError
47 if errors.As(err, &pgErr) {
48 switch pgErr.Code {
49 case sqlstateUniqueViolation:
50 if pgErr.ConstraintName == constraintUsernameUnique {
51 return dao.ErrDuplicateUsername
52 }
53 // Any other unique violation (a primary-key collision) is the
54 // internal-error-only sentinel — never caller-reachable, since
55 // no caller supplies an ID (05's ruling on Oren's finding #1).
56 return dao.ErrAlreadyExists
57 case sqlstateForeignKeyViolation:
58 if pgErr.ConstraintName == constraintMethodFK {
59 return dao.ErrInvalidMethod
60 }
61 return dao.ErrInvalidArgument
62 case sqlstateCheckViolation:
63 if pgErr.ConstraintName == constraintSecretState {
64 return dao.ErrInvalidCredential
65 }
66 return dao.ErrInvalidArgument
67 }
68 }
69
70 // Not a recognized structured condition — wrap for logs, sanitized:
71 // only the SQLSTATE code (if any) travels with it, never the raw
72 // message/DETAIL text.
73 if pgErr != nil {
74 return fmt.Errorf("postgres: driver error (sqlstate %s): %w", pgErr.Code, errUnclassified)
75 }
76 return fmt.Errorf("postgres: %w", errUnclassified)
77 }
78
79 var errUnclassified = errors.New("unclassified driver error")
80 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-36/internal/dao/postgres/like.go"
}1 package postgres
2
3 import "strings"
4
5 // escapeLike escapes %, _ and \ in caller input so it's treated as a
6 // literal LIKE pattern, per multi-db-strategy.md §6.4. Callers of this
7 // package's Search always combine the result with an explicit
8 // `ESCAPE '\'` clause in the query text.
9 func escapeLike(s string) string {
10 r := strings.NewReplacer(`\`, `\\`, `%`, `\%`, `_`, `\_`)
11 return r.Replace(s)
12 }
13 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-36/internal/dao/postgres/register.go"
}1 package postgres
2
3 import "loginid-takehome/internal/dao"
4
5 // init registers this package under both driver strings, per
6 // multi-db-strategy.md §1: "postgres" and "cockroachdb" both select this
7 // package, distinct strings only so withRetry knows which engine it's
8 // talking to.
9 func init() {
10 dao.Register("postgres", func(dsn string) (dao.Repository, error) {
11 return New(dsn, enginePostgres)
12 })
13 dao.Register("cockroachdb", func(dsn string) (dao.Repository, error) {
14 return New(dsn, engineCockroach)
15 })
16 }
17 {
"command": "cat /Users/warrenthompson/Source/LoginID-worktrees/LT-36/internal/dao/validate_query.go"
}package dao
import "strings"
// ValidateProfileQuery enforces the ErrInvalidQuery triggers enumerated in
// multi-db-strategy.md §4: a non-nil filter that is empty after trimming;
// Limit < 0 or > 100; Offset < 0 or > 10_000; Country not exactly two
// characters. An all-nil query is legal. Both backends call this before
// building any SQL, so the rule is identical across engines rather than
// each package re-deriving it.
func ValidateProfileQuery(q ProfileQuery) error {
for _, f := range []*string{q.Name, q.Phone, q.Region, q.Country} {
if f != nil && strings.TrimSpace(*f) == "" {
return ErrInvalidQuery
}
}
if q.Limit < 0 || q.Limit > 100 {
return ErrInvalidQuery
}
if q.Offset < 0 || q.Offset > 10_000 {
return ErrInvalidQuery
}
if q.Country != nil && len(*q.Country) != 2 {
return ErrInvalidQuery
}
return nil
}
// EffectiveLimit returns 50 when Limit is 0 (deliberately, per §3a note 2),
// otherwise Limit unchanged. Call only after ValidateProfileQuery passes.
func EffectiveLimit(q ProfileQuery) int {
if q.Limit == 0 {
return 50
}
return q.Limit
}{
"command": "grep -n \"func Test\" /Users/warrenthompson/Source/LoginID-worktrees/LT-36/internal/dao/postgres/integration_test.go"
}29:func TestIntegration_ProfileCRUD(t *testing.T) {
70:func TestIntegration_CreateWithCallerSuppliedID(t *testing.T) {
80:func TestIntegration_UpdateMissingRow(t *testing.T) {
90:func TestIntegration_UpsertExcludesCreatedAtFromUpdate(t *testing.T) {
113:func TestIntegration_UpsertInsertsWhenAbsent(t *testing.T) {
128:func TestIntegration_SearchLikeEscaping(t *testing.T) {
147:func TestIntegration_SearchPagination(t *testing.T) {
167:func TestIntegration_SearchEmptyQueryIsLegal(t *testing.T) {
181:func TestIntegration_SearchInvalidQuery(t *testing.T) {
195:func TestIntegration_CredentialCRUDAndErrorTranslation(t *testing.T) {
252:func TestIntegration_ListByUserID_EmptyNotError(t *testing.T) {
265:func TestIntegration_CreateProfileWithCredential_Atomic(t *testing.T) {
313:func TestIntegration_CreateProfileWithCredential_IgnoresCallerSuppliedUserID(t *testing.T) {
331:func TestIntegration_DeleteExpiredAndOldestSurviving(t *testing.T) {
381:func TestIntegration_DeleteExpired_MaxRowsBounds(t *testing.T) {
395:func TestIntegration_DeleteProfile_SubjectRequest(t *testing.T) {
427:func TestIntegration_DeleteProfile_NotFound(t *testing.T) {
437:func TestIntegration_ProfileDeleteCascadesToCredentials(t *testing.T) {{
"__unparsedToolInput": {
"raw": "{\"file_path\": \"/Users/warrenthompson/Source/LoginID-worktrees/LT-36/internal/dao/postgres/integration_test.go\", \"offset\": 252, 265, \"limit\": 80}",
"len": 144
}
}<tool_use_error>InputValidationError: Read was called with input that could not be parsed as JSON.
You sent (first 144 of 144 bytes): {"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-36/internal/dao/postgres/integration_test.go", "offset": 252, 265, "limit": 80}
Common causes: unescaped backslashes in file paths (use / or \\), unescaped control characters, or truncated output. Retry with valid JSON.</tool_use_error>{
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-36/internal/dao/postgres/integration_test.go",
"offset": 252,
"limit": 130
}252 func TestIntegration_ListByUserID_EmptyNotError(t *testing.T) {
253 repo := newTestRepo(t)
254 ctx := context.Background()
255
256 list, err := repo.Credentials().ListByUserID(ctx, "00000000-0000-0000-0000-000000000000")
257 if err != nil {
258 t.Fatalf("ListByUserID for a user with no credentials should not error, got %v", err)
259 }
260 if len(list) != 0 {
261 t.Errorf("expected empty slice, got %d", len(list))
262 }
263 }
264
265 func TestIntegration_CreateProfileWithCredential_Atomic(t *testing.T) {
266 db := setupDB(t)
267 methodID := seedAuthMethodID(t, db)
268 repo := &repository{db: db, engine: enginePostgres}
269 ctx := context.Background()
270
271 // First, succeed once so the username "dave" exists.
272 _, _, err := repo.CreateProfileWithCredential(ctx,
273 &model.UserProfile{Name: "Dave One", Source: "direct"},
274 &model.UserCredential{UserID: "ignored-on-input", Username: "dave", MethodID: methodID, SecretState: "none"},
275 )
276 if err != nil {
277 t.Fatalf("first CreateProfileWithCredential: %v", err)
278 }
279
280 // Now force the credential half to fail (duplicate username) and
281 // confirm the profile half was rolled back too — the whole point of
282 // this being one transaction.
283 var countBefore int
284 if err := db.QueryRow("SELECT COUNT(*) FROM user_profile").Scan(&countBefore); err != nil {
285 t.Fatalf("counting profiles: %v", err)
286 }
287
288 _, _, err = repo.CreateProfileWithCredential(ctx,
289 &model.UserProfile{Name: "Dave Two (should not persist)", Source: "direct"},
290 &model.UserCredential{Username: "dave", MethodID: methodID, SecretState: "none"}, // duplicate username
291 )
292 if !errors.Is(err, dao.ErrDuplicateUsername) {
293 t.Fatalf("expected ErrDuplicateUsername, got %v", err)
294 }
295
296 var countAfter int
297 if err := db.QueryRow("SELECT COUNT(*) FROM user_profile").Scan(&countAfter); err != nil {
298 t.Fatalf("counting profiles: %v", err)
299 }
300 if countAfter != countBefore {
301 t.Errorf("profile count changed from %d to %d after a failed CreateProfileWithCredential — the profile half must roll back too", countBefore, countAfter)
302 }
303
304 var nameCount int
305 if err := db.QueryRow("SELECT COUNT(*) FROM user_profile WHERE name = 'Dave Two (should not persist)'").Scan(&nameCount); err != nil {
306 t.Fatalf("checking for orphaned profile: %v", err)
307 }
308 if nameCount != 0 {
309 t.Error("the failed attempt's profile row exists despite the credential write failing")
310 }
311 }
312
313 func TestIntegration_CreateProfileWithCredential_IgnoresCallerSuppliedUserID(t *testing.T) {
314 db := setupDB(t)
315 methodID := seedAuthMethodID(t, db)
316 repo := &repository{db: db, engine: enginePostgres}
317 ctx := context.Background()
318
319 _, cred, err := repo.CreateProfileWithCredential(ctx,
320 &model.UserProfile{Name: "Erin", Source: "direct"},
321 &model.UserCredential{UserID: "attacker-supplied-mismatch", Username: "erin", MethodID: methodID, SecretState: "none"},
322 )
323 if err != nil {
324 t.Fatalf("CreateProfileWithCredential: %v", err)
325 }
326 if cred.UserID == "attacker-supplied-mismatch" {
327 t.Error("c.UserID must be ignored on input and set from the newly created profile")
328 }
329 }
330
331 func TestIntegration_DeleteExpiredAndOldestSurviving(t *testing.T) {
332 db := setupDB(t)
333 repo := &repository{db: db, engine: enginePostgres}
334 ctx := context.Background()
335
336 old, err := repo.Profiles().Create(ctx, &model.UserProfile{Name: "Old Direct Row", Source: "direct"})
337 if err != nil {
338 t.Fatalf("creating profile: %v", err)
339 }
340 // Backdate updated_at directly (test-only path — the DAO never lets a
341 // caller set timestamps) so it's older than the sweep window.
342 if _, err := db.Exec("UPDATE user_profile SET updated_at = now() - interval '1000 days' WHERE id = $1", old.ID); err != nil {
343 t.Fatalf("backdating updated_at: %v", err)
344 }
345
346 young, err := repo.Profiles().Create(ctx, &model.UserProfile{Name: "Young Direct Row", Source: "direct"})
347 if err != nil {
348 t.Fatalf("creating profile: %v", err)
349 }
350
351 result, err := repo.DeleteExpired(ctx, dao.RetentionDirect, time.Now().Add(-365*24*time.Hour), 100)
352 if err != nil {
353 t.Fatalf("DeleteExpired: %v", err)
354 }
355 if result.RowsDeleted != 1 {
356 t.Errorf("RowsDeleted = %d, want 1 (only the backdated row)", result.RowsDeleted)
357 }
358 if !result.Drained {
359 t.Errorf("Drained = false, want true (fewer rows than maxRows)")
360 }
361 if result.OldestSurvivingAt == nil {
362 t.Fatal("OldestSurvivingAt is nil, want the young row's updated_at — a survivor exists")
363 }
364
365 if _, err := repo.Profiles().Get(ctx, old.ID); !errors.Is(err, dao.ErrNotFound) {
366 t.Errorf("old row should be deleted, Get returned %v", err)
367 }
368 if _, err := repo.Profiles().Get(ctx, young.ID); err != nil {
369 t.Errorf("young row should survive, Get returned %v", err)
370 }
371
372 var logCount int
373 if err := db.QueryRow("SELECT COUNT(*) FROM deletion_log WHERE profile_id = $1 AND reason = 'retention_sweep'", old.ID).Scan(&logCount); err != nil {
374 t.Fatalf("checking deletion_log: %v", err)
375 }
376 if logCount != 1 {
377 t.Errorf("expected one deletion_log row with reason=retention_sweep for the deleted profile, got %d", logCount)
378 }
379 }
380
381 func TestIntegration_DeleteExpired_MaxRowsBounds(t *testing.T) {{
"command": "cat /Users/warrenthompson/Source/LoginID-worktrees/LT-36/internal/dao/postgres/testutil_test.go"
}package postgres
import (
"database/sql"
"fmt"
"math/rand"
"os"
"path/filepath"
"strings"
"testing"
)
// migrationSQL reads a goose-format migration file and returns just the Up
// section's SQL — the real deliverable in migrations/{shared,postgres}/,
// not a duplicated copy of the schema. Applying the actual migration files
// in tests is what keeps this test harness honest: if the migrations
// drift from what the Go code expects, the integration tests fail, not
// just a hand-maintained fixture.
func migrationSQL(t *testing.T, path string) string {
t.Helper()
b, err := os.ReadFile(path)
if err != nil {
t.Fatalf("reading migration %s: %v", path, err)
}
content := string(b)
upStart := strings.Index(content, "-- +goose Up")
downStart := strings.Index(content, "-- +goose Down")
if upStart == -1 || downStart == -1 {
t.Fatalf("migration %s missing +goose Up/Down markers", path)
}
return content[upStart+len("-- +goose Up") : downStart]
}
// setupDB connects to TEST_POSTGRES_DSN (skipping the test if unset — real
// Postgres/CockroachDB verification is this package's own responsibility;
// LT-38's cross-backend suite proves behavior matches SQLite, not that
// this package can reach a database at all), applies the real migration
// files into a fresh, uniquely-named schema, and tears the schema down on
// test cleanup so tests never collide with each other.
func setupDB(t *testing.T) *sql.DB {
t.Helper()
dsn := os.Getenv("TEST_POSTGRES_DSN")
if dsn == "" {
t.Skip("TEST_POSTGRES_DSN not set — skipping Postgres integration test (see refinement/LT-36-LT-37.md: real-backend verification is this package's responsibility, run manually or in CI once wired)")
}
db, err := sql.Open("pgx", dsn)
if err != nil {
t.Fatalf("opening TEST_POSTGRES_DSN: %v", err)
}
t.Cleanup(func() { db.Close() })
// Cap the pool at one connection BEFORE anything session-scoped
// (SET search_path) runs — otherwise the migration or a later test
// query can land on a different pooled connection that never saw the
// SET, and silently falls back to the default search_path.
db.SetMaxOpenConns(1)
schemaName := fmt.Sprintf("test_%d", rand.Int63())
if _, err := db.Exec("CREATE SCHEMA " + schemaName); err != nil {
t.Fatalf("creating test schema: %v", err)
}
t.Cleanup(func() {
db.Exec("DROP SCHEMA " + schemaName + " CASCADE")
})
// Include "public" on the path: pg_trgm's CREATE EXTENSION IF NOT
// EXISTS in the migration is a no-op after the first test schema
// creates it, and an extension's objects (gin_trgm_ops) live in
// whichever schema was current at creation time — later test schemas
// need "public" on their path to see it, not just their own name.
if _, err := db.Exec("SET search_path TO " + schemaName + ", public"); err != nil {
t.Fatalf("setting search_path: %v", err)
}
repoRoot := repoRootFromThisFile(t)
postgresMigration := migrationSQL(t, filepath.Join(repoRoot, "migrations", "postgres", "00001_initial_schema.sql"))
if _, err := db.Exec(postgresMigration); err != nil {
t.Fatalf("applying postgres migration: %v", err)
}
sharedSeed := migrationSQL(t, filepath.Join(repoRoot, "migrations", "shared", "00001_seed_auth_method.sql"))
if _, err := db.Exec(sharedSeed); err != nil {
t.Fatalf("applying shared seed migration: %v", err)
}
return db
}
func repoRootFromThisFile(t *testing.T) string {
t.Helper()
wd, err := os.Getwd()
if err != nil {
t.Fatalf("getwd: %v", err)
}
// this package: <repoRoot>/internal/dao/postgres
return filepath.Join(wd, "..", "..", "..")
}
// seedAuthMethodID returns the id of the 'password' method seeded by the
// shared migration, for tests that need a valid method_id FK target.
func seedAuthMethodID(t *testing.T, db *sql.DB) string {
t.Helper()
var id string
if err := db.QueryRow("SELECT id FROM auth_method WHERE name = 'password'").Scan(&id); err != nil {
t.Fatalf("looking up seeded auth_method: %v", err)
}
return id
}{
"command": "which docker && docker info >/dev/null 2>&1 && echo \"docker OK\" || echo \"no docker\""
}/usr/local/bin/docker docker OK
{
"command": "docker rm -f lt36-pg >/dev/null 2>&1\ndocker run -d --name lt36-pg -e POSTGRES_PASSWORD=test -e POSTGRES_DB=testdb -p 55432:5432 postgres:16-alpine >/dev/null 2>&1\necho \"starting...\"\nfor i in $(seq 1 30); do\n docker exec lt36-pg pg_isready -U postgres >/dev/null 2>&1 && echo \"ready after ${i}s\" && break\n sleep 1\ndone"
}starting... ready after 2s
{
"command": "cd /Users/warrenthompson/Source/LoginID-worktrees/LT-36 && cat migrations/postgres/00001_initial_schema.sql 2>/dev/null | head -20\ndocker exec lt36-pg psql -U postgres -d testdb -c \"CREATE EXTENSION IF NOT EXISTS pg_trgm;\" 2>&1\nTEST_POSTGRES_DSN=\"postgres://postgres:«REDACTED»@localhost:55432/testdb?sslmode=disable\" go test ./internal/dao/... -v 2>&1 | tail -150"
}-- +goose Up
-- Postgres/CockroachDB DDL per 05-data-ops/multi-db-strategy.md §5.
-- Every constraint is named — error translation matches on SQLSTATE plus
-- constraint name, never message text (contract §4; ddl-review-checklist.md B).
CREATE EXTENSION IF NOT EXISTS pg_trgm;
CREATE TABLE auth_method (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
name TEXT NOT NULL UNIQUE,
requires_secret BOOLEAN NOT NULL,
is_active BOOLEAN NOT NULL,
created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);
CREATE TABLE user_profile (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
name TEXT COLLATE "C" NOT NULL CHECK (length(trim(name)) > 0),
phone TEXT CONSTRAINT ck_user_profile_phone_e164 CHECK (phone IS NULL OR phone ~ '^\+[1-9][0-9]{1,14}$'),
street_address TEXT CONSTRAINT ck_user_profile_street_address_nonempty CHECK (street_address IS NULL OR length(trim(street_address)) > 0),
CREATE EXTENSION
=== RUN TestConformance_Repository
--- PASS: TestConformance_Repository (0.00s)
=== RUN TestConformance_SubInterfaces
--- PASS: TestConformance_SubInterfaces (0.00s)
=== RUN TestConformance_ProfileQuery
--- PASS: TestConformance_ProfileQuery (0.00s)
=== RUN TestConformance_RetentionTypes
--- PASS: TestConformance_RetentionTypes (0.00s)
=== RUN TestConformance_DomainTypes
--- PASS: TestConformance_DomainTypes (0.00s)
=== RUN TestConformance_SentinelMessages
--- PASS: TestConformance_SentinelMessages (0.00s)
=== RUN TestConformance_SentinelSetIsExactlyTheFrozenSeven
--- PASS: TestConformance_SentinelSetIsExactlyTheFrozenSeven (0.00s)
=== RUN TestContractChecksumUpToDate
--- PASS: TestContractChecksumUpToDate (0.00s)
=== RUN TestValidateCreateID
--- PASS: TestValidateCreateID (0.00s)
=== RUN TestValidateProfilePointers_Phone
--- PASS: TestValidateProfilePointers_Phone (0.00s)
=== RUN TestValidateProfilePointers_StreetAddress
--- PASS: TestValidateProfilePointers_StreetAddress (0.00s)
=== RUN TestValidateProfilePointers_Locality
--- PASS: TestValidateProfilePointers_Locality (0.00s)
=== RUN TestValidateProfilePointers_Region
--- PASS: TestValidateProfilePointers_Region (0.00s)
=== RUN TestValidateProfilePointers_PostalCode
--- PASS: TestValidateProfilePointers_PostalCode (0.00s)
=== RUN TestValidateProfilePointers_Country
--- PASS: TestValidateProfilePointers_Country (0.00s)
=== RUN TestValidateCredentialPointers_HashAlgo
--- PASS: TestValidateCredentialPointers_HashAlgo (0.00s)
=== RUN TestPrepareCreateProfileWithCredential_ClearsCallerSuppliedUserID
--- PASS: TestPrepareCreateProfileWithCredential_ClearsCallerSuppliedUserID (0.00s)
PASS
ok loginid-takehome/internal/dao 0.178s
=== RUN TestTranslateError
=== RUN TestTranslateError/duplicate_username
=== RUN TestTranslateError/duplicate_id_(PK_collision)
=== RUN TestTranslateError/unknown_method_id
=== RUN TestTranslateError/other_FK_violation
=== RUN TestTranslateError/secret-state_CHECK
=== RUN TestTranslateError/other_CHECK_violation
--- PASS: TestTranslateError (0.00s)
--- PASS: TestTranslateError/duplicate_username (0.00s)
--- PASS: TestTranslateError/duplicate_id_(PK_collision) (0.00s)
--- PASS: TestTranslateError/unknown_method_id (0.00s)
--- PASS: TestTranslateError/other_FK_violation (0.00s)
--- PASS: TestTranslateError/secret-state_CHECK (0.00s)
--- PASS: TestTranslateError/other_CHECK_violation (0.00s)
=== RUN TestTranslateError_NeverEmbedsRawDriverText
--- PASS: TestTranslateError_NeverEmbedsRawDriverText (0.00s)
=== RUN TestTranslateError_NotFound
--- PASS: TestTranslateError_NotFound (0.00s)
=== RUN TestIntegration_ProfileCRUD
--- PASS: TestIntegration_ProfileCRUD (0.05s)
=== RUN TestIntegration_CreateWithCallerSuppliedID
--- PASS: TestIntegration_CreateWithCallerSuppliedID (0.03s)
=== RUN TestIntegration_UpdateMissingRow
--- PASS: TestIntegration_UpdateMissingRow (0.04s)
=== RUN TestIntegration_UpsertExcludesCreatedAtFromUpdate
--- PASS: TestIntegration_UpsertExcludesCreatedAtFromUpdate (0.05s)
=== RUN TestIntegration_UpsertInsertsWhenAbsent
--- PASS: TestIntegration_UpsertInsertsWhenAbsent (0.03s)
=== RUN TestIntegration_SearchLikeEscaping
--- PASS: TestIntegration_SearchLikeEscaping (0.03s)
=== RUN TestIntegration_SearchPagination
--- PASS: TestIntegration_SearchPagination (0.04s)
=== RUN TestIntegration_SearchEmptyQueryIsLegal
--- PASS: TestIntegration_SearchEmptyQueryIsLegal (0.04s)
=== RUN TestIntegration_SearchInvalidQuery
--- PASS: TestIntegration_SearchInvalidQuery (0.04s)
=== RUN TestIntegration_CredentialCRUDAndErrorTranslation
--- PASS: TestIntegration_CredentialCRUDAndErrorTranslation (0.08s)
=== RUN TestIntegration_ListByUserID_EmptyNotError
--- PASS: TestIntegration_ListByUserID_EmptyNotError (0.04s)
=== RUN TestIntegration_CreateProfileWithCredential_Atomic
--- PASS: TestIntegration_CreateProfileWithCredential_Atomic (0.04s)
=== RUN TestIntegration_CreateProfileWithCredential_IgnoresCallerSuppliedUserID
--- PASS: TestIntegration_CreateProfileWithCredential_IgnoresCallerSuppliedUserID (0.03s)
=== RUN TestIntegration_DeleteExpiredAndOldestSurviving
--- PASS: TestIntegration_DeleteExpiredAndOldestSurviving (0.04s)
=== RUN TestIntegration_DeleteExpired_MaxRowsBounds
--- PASS: TestIntegration_DeleteExpired_MaxRowsBounds (0.03s)
=== RUN TestIntegration_DeleteProfile_SubjectRequest
--- PASS: TestIntegration_DeleteProfile_SubjectRequest (0.04s)
=== RUN TestIntegration_DeleteProfile_NotFound
--- PASS: TestIntegration_DeleteProfile_NotFound (0.05s)
=== RUN TestIntegration_ProfileDeleteCascadesToCredentials
--- PASS: TestIntegration_ProfileDeleteCascadesToCredentials (0.04s)
=== RUN TestRetryLoop_PostgresCallsOnce
--- PASS: TestRetryLoop_PostgresCallsOnce (0.00s)
=== RUN TestRetryLoop_CockroachRetriesOnSerializationFailure
--- PASS: TestRetryLoop_CockroachRetriesOnSerializationFailure (0.00s)
=== RUN TestRetryLoop_CockroachDoesNotRetryNonRetryableError
--- PASS: TestRetryLoop_CockroachDoesNotRetryNonRetryableError (0.00s)
=== RUN TestRetryLoop_SucceedsWithoutRetry
--- PASS: TestRetryLoop_SucceedsWithoutRetry (0.00s)
=== RUN TestIsRetryable
--- PASS: TestIsRetryable (0.00s)
PASS
ok loginid-takehome/internal/dao/postgres 0.856s
Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery{
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-36/internal/dao/postgres/integration_test.go",
"offset": 381,
"limit": 20
}381 func TestIntegration_DeleteExpired_MaxRowsBounds(t *testing.T) {
382 repo := newTestRepo(t)
383 ctx := context.Background()
384
385 _, err := repo.DeleteExpired(ctx, dao.RetentionDirect, time.Now(), 0)
386 if !errors.Is(err, dao.ErrInvalidArgument) {
387 t.Errorf("maxRows=0 = %v, want ErrInvalidArgument", err)
388 }
389 _, err = repo.DeleteExpired(ctx, dao.RetentionDirect, time.Now(), 10_001)
390 if !errors.Is(err, dao.ErrInvalidArgument) {
391 t.Errorf("maxRows=10001 = %v, want ErrInvalidArgument", err)
392 }
393 }
394
395 func TestIntegration_DeleteProfile_SubjectRequest(t *testing.T) {
396 db := setupDB(t)
397 repo := &repository{db: db, engine: enginePostgres}
398 ctx := context.Background()
399
400 profile, err := repo.Profiles().Create(ctx, &model.UserProfile{Name: "Subject", Source: "direct"}){
"command": "docker rm -f lt36-pg >/dev/null 2>&1; echo done"
}done
{
"command": "cd /Users/warrenthompson/Source/LoginID-worktrees/LT-37 && git log --oneline -5 && git branch --show-current && ls internal/dao/sqlite 2>/dev/null || find internal/dao -maxdepth 1 -type d"
}9c40d18 LT-37: SQLite DAO implementation 3af41d4 Merge PR #3: refresh LT-35 conformance checksum after contract amendments 78fa05e fix: refresh LT-35 conformance checksum after contract amendments 3397c26 Loop iterations 4–8: no-re-ask rule, LT-36/37/38 refinement, deploy-path decision e4c7945 Refinement records for LT-34 and LT-35 (Product Owner + research team) feature/LT-37 composite.go credentials.go errors.go errors_test.go integration_test.go like.go methods.go profiles.go register.go sqlite.go testutil_test.go Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery
{
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-37/internal/dao/sqlite/errors.go"
}1 package sqlite
2
3 import (
4 "database/sql"
5 "errors"
6 "fmt"
7 "strings"
8
9 sqlitedriver "modernc.org/sqlite"
10
11 "loginid-takehome/internal/dao"
12 )
13
14 // Extended result codes, per SQLite's documented result-code table
15 // (https://www.sqlite.org/rescode.html). modernc.org/sqlite's Error.Code()
16 // returns the extended code, not just the primary SQLITE_CONSTRAINT class.
17 const (
18 sqliteConstraintUnique = 2067 // SQLITE_CONSTRAINT_UNIQUE
19 sqliteConstraintPrimaryKey = 1555 // SQLITE_CONSTRAINT_PRIMARYKEY
20 sqliteConstraintForeignKey = 787 // SQLITE_CONSTRAINT_FOREIGNKEY
21 sqliteConstraintCheck = 275 // SQLITE_CONSTRAINT_CHECK
22 )
23
24 const (
25 constraintUsernameUnique = "uq_user_credential_username"
26 constraintMethodFK = "fk_user_credential_method"
27 constraintSecretState = "ck_user_credential_secret_state"
28 )
29
30 // checkConstraintName extracts the constraint name from a SQLite CHECK
31 // violation message. SQLite's message for a named constraint (defined as
32 // `CONSTRAINT name CHECK (...)` in our own DDL) is deterministically
33 // "CHECK constraint failed: <name>", sometimes with a trailing " (<code>)"
34 // (observed from modernc.org/sqlite: "constraint failed: CHECK constraint
35 // failed: ck_user_credential_secret_state (275)") — this is not free-text
36 // message matching in the sense the contract prohibits; it's extracting a
37 // structured field SQLite's own error format guarantees to contain
38 // exactly the constraint name we ourselves wrote in DDL, the same
39 // artifact Postgres gives us through PgError.ConstraintName directly.
40 func checkConstraintName(msg string) (string, bool) {
41 const marker = "CHECK constraint failed: "
42 i := strings.LastIndex(msg, marker)
43 if i == -1 {
44 return "", false
45 }
46 name := strings.TrimSpace(msg[i+len(marker):])
47 // Strip a trailing " (<digits>)" result-code suffix, if present.
48 if j := strings.LastIndex(name, " ("); j != -1 && strings.HasSuffix(name, ")") {
49 name = strings.TrimSpace(name[:j])
50 }
51 return name, true
52 }
53
54 // translateError maps a driver error to one of the seven dao sentinels by
55 // structured extended result code plus our own constraint name — never by
56 // matching arbitrary free-text. Mirrors postgres/errors.go's rule exactly
57 // so both backends produce the same sentinel for the same logical
58 // condition (multi-db-strategy.md §4).
59 func translateError(err error) error {
60 if err == nil {
61 return nil
62 }
63 if errors.Is(err, sql.ErrNoRows) {
64 return dao.ErrNotFound
65 }
66
67 var sqErr *sqlitedriver.Error
68 if errors.As(err, &sqErr) {
69 switch sqErr.Code() {
70 case sqliteConstraintUnique:
71 // This schema's only UNIQUE index besides the PK is
72 // uq_user_credential_username — no disambiguation needed;
73 // unlike Postgres, a PK collision here reports as
74 // SQLITE_CONSTRAINT_PRIMARYKEY (below), a distinct code, so
75 // this branch is unambiguously the username index.
76 return dao.ErrDuplicateUsername
77 case sqliteConstraintPrimaryKey:
78 return dao.ErrAlreadyExists
79 case sqliteConstraintForeignKey:
80 // SQLite's FK violation message does not name the FK
81 // constraint; this schema has exactly one FK we translate
82 // specifically (method_id) and one we don't need to
83 // (user_id, never violated by application code since the
84 // DAO always creates the profile first in the same
85 // transaction) — so any FK violation reaching here is the
86 // method FK.
87 return dao.ErrInvalidMethod
88 case sqliteConstraintCheck:
89 if name, ok := checkConstraintName(sqErr.Error()); ok && name == constraintSecretState {
90 return dao.ErrInvalidCredential
91 }
92 return dao.ErrInvalidArgument
93 }
94 }
95
96 if sqErr != nil {
97 return fmt.Errorf("sqlite: driver error (code %d): %w", sqErr.Code(), errUnclassified)
98 }
99 return fmt.Errorf("sqlite: %w", errUnclassified)
100 }
101
102 var errUnclassified = errors.New("unclassified driver error")
103 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-37/internal/dao/sqlite/errors_test.go"
}1 package sqlite
2
3 import (
4 "errors"
5 "testing"
6 )
7
8 func TestCheckConstraintName(t *testing.T) {
9 cases := []struct {
10 msg string
11 wantName string
12 wantOK bool
13 }{
14 {"constraint failed: CHECK constraint failed: ck_user_credential_secret_state (275)", "ck_user_credential_secret_state", true},
15 {"constraint failed: CHECK constraint failed: ck_user_profile_phone_e164 (275)", "ck_user_profile_phone_e164", true},
16 {"some other error", "", false},
17 }
18 for _, c := range cases {
19 name, ok := checkConstraintName(c.msg)
20 if ok != c.wantOK || name != c.wantName {
21 t.Errorf("checkConstraintName(%q) = (%q, %v), want (%q, %v)", c.msg, name, ok, c.wantName, c.wantOK)
22 }
23 }
24 }
25
26 func TestTranslateError_NotFoundAndNil(t *testing.T) {
27 if got := translateError(nil); got != nil {
28 t.Errorf("translateError(nil) = %v, want nil", got)
29 }
30 }
31
32 func TestTranslateError_UnclassifiedNeverLeaksMessage(t *testing.T) {
33 err := errors.New("some unrelated error")
34 got := translateError(err)
35 if got == nil {
36 t.Fatal("expected a wrapped error")
37 }
38 }
39
40 func TestEscapeLike(t *testing.T) {
41 cases := map[string]string{
42 "50%": `50\%`,
43 "a_b": `a\_b`,
44 `back\slash`: `back\\slash`,
45 "plain": "plain",
46 }
47 for in, want := range cases {
48 if got := escapeLike(in); got != want {
49 t.Errorf("escapeLike(%q) = %q, want %q", in, got, want)
50 }
51 }
52 }
53 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-37/internal/dao/sqlite/sqlite.go"
}1 // Package sqlite implements internal/dao's Repository composite for
2 // SQLite, per 05-data-ops/multi-db-strategy.md. A separate package from
3 // postgres — SQLite diverges enough (no native UUID/BOOLEAN, no trigram
4 // index, app-side ID generation) that forcing it through the Postgres
5 // implementation would mean littering that code with backend
6 // conditionals, which is the exact failure mode a repository-per-backend
7 // split is meant to avoid.
8 package sqlite
9
10 import (
11 "database/sql"
12 "fmt"
13
14 _ "modernc.org/sqlite" // registers the "sqlite" database/sql driver
15
16 "loginid-takehome/internal/dao"
17 )
18
19 type repository struct {
20 db *sql.DB
21 }
22
23 // New opens a connection against dsn (a file path, or ":memory:").
24 // Registered with internal/dao's factory in register.go. There is no
25 // retry wrapper here at all — not a no-op shim. SQLite has no
26 // retryable-serialization error class, so a no-op would be ceremony
27 // implying a shared abstraction that does not exist (contract §4).
28 func New(dsn string) (dao.Repository, error) {
29 db, err := sql.Open("sqlite", dsn)
30 if err != nil {
31 return nil, fmt.Errorf("sqlite: opening connection: %w", err)
32 }
33 if _, err := db.Exec("PRAGMA foreign_keys = ON"); err != nil {
34 return nil, fmt.Errorf("sqlite: enabling foreign_keys: %w", err)
35 }
36 // SQLite allows only one writer at a time; a single connection avoids
37 // SQLITE_BUSY from this package's own concurrent use within a process.
38 db.SetMaxOpenConns(1)
39 return &repository{db: db}, nil
40 }
41
42 func (r *repository) Profiles() dao.ProfileRepository { return profileRepo{r} }
43 func (r *repository) Credentials() dao.CredentialRepository { return credentialRepo{r} }
44 func (r *repository) Methods() dao.AuthMethodRepository { return authMethodRepo{r} }
45
46 func (r *repository) Close() error { return r.db.Close() }
47 {
"file_path": "/Users/warrenthompson/Source/LoginID-worktrees/LT-37/internal/dao/sqlite/composite.go"
}1 package sqlite
2
3 import (
4 "context"
5 "database/sql"
6 "time"
7
8 "github.com/google/uuid"
9
10 "loginid-takehome/internal/dao"
11 "loginid-takehome/internal/model"
12 )
13
14 // CreateProfileWithCredential writes both rows in one transaction (§3b).
15 // No retry wrapper needed — SQLite has no retryable-serialization error
16 // class — but atomicity still requires an explicit transaction.
17 func (r *repository) CreateProfileWithCredential(ctx context.Context, p *model.UserProfile, c *model.UserCredential) (*model.UserProfile, *model.UserCredential, error) {
18 if err := dao.ValidateCreateID(p.ID); err != nil {
19 return nil, nil, err
20 }
21 if err := dao.ValidateProfilePointers(p); err != nil {
22 return nil, nil, err
23 }
24 if err := dao.ValidateCreateID(c.ID); err != nil {
25 return nil, nil, err
26 }
27 dao.PrepareCreateProfileWithCredential(c)
28 if err := dao.ValidateCredentialPointers(c); err != nil {
29 return nil, nil, err
30 }
31
32 tx, err := r.db.BeginTx(ctx, nil)
33 if err != nil {
34 return nil, nil, translateError(err)
35 }
36 defer tx.Rollback()
37
38 profileID := uuid.NewString()
39 now := time.Now().UTC().Format(timeLayout)
40 if _, err := tx.ExecContext(ctx, `
41 INSERT INTO user_profile (id, name, phone, street_address, locality, region, postal_code, country, source, created_at, updated_at)
42 VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
43 profileID, p.Name, p.Phone, p.StreetAddress, p.Locality, p.Region, p.PostalCode, p.Country, p.Source, now, now); err != nil {
44 return nil, nil, translateError(err)
45 }
46
47 credentialID := uuid.NewString()
48 if _, err := tx.ExecContext(ctx, `
49 INSERT INTO user_credential (id, user_id, username, method_id, secret, secret_state, hash_algo, hash_cost, created_at, updated_at)
50 VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
51 credentialID, profileID, c.Username, c.MethodID, c.Secret, c.SecretState, c.HashAlgo, c.HashCost, now, now); err != nil {
52 return nil, nil, translateError(err)
53 }
54
55 if err := tx.Commit(); err != nil {
56 return nil, nil, translateError(err)
57 }
58
59 createdProfile, err := r.Profiles().Get(ctx, profileID)
60 if err != nil {
61 return nil, nil, err
62 }
63 createdCredential, err := r.Credentials().GetByUsername(ctx, c.Username)
64 if err != nil {
65 return nil, nil, err
66 }
67 return createdProfile, createdCredential, nil
68 }
69
70 // clockColumnFor mirrors postgres/composite.go's logic exactly, per
71 // pii-governance.md: "direct" and "idp_cache" (referenced by a credential)
72 // key on updated_at; "idp_cache_orphan" keys on created_at.
73 func clockColumnFor(class dao.RetentionClass) (column string, extraWhere string, ok bool) {
74 switch class {
75 case dao.RetentionDirect:
76 return "updated_at", "source = 'direct'", true
77 case dao.RetentionIDPCache:
78 return "updated_at", "source = 'idp_cache' AND EXISTS (SELECT 1 FROM user_credential WHERE user_credential.user_id = user_profile.id)", true
79 case dao.RetentionIDPCacheOrphan:
80 return "created_at", "source = 'idp_cache' AND NOT EXISTS (SELECT 1 FROM user_credential WHERE user_credential.user_id = user_profile.id)", true
81 default:
82 return "", "", false
83 }
84 }
85
86 func (r *repository) DeleteExpired(ctx context.Context, class dao.RetentionClass, olderThan time.Time, maxRows int) (dao.SweepResult, error) {
87 if maxRows < 1 || maxRows > 10_000 {
88 return dao.SweepResult{}, dao.ErrInvalidArgument
89 }
90 clockColumn, extraWhere, ok := clockColumnFor(class)
91 if !ok {
92 return dao.SweepResult{}, dao.ErrInvalidArgument
93 }
94
95 tx, err := r.db.BeginTx(ctx, nil)
96 if err != nil {
97 return dao.SweepResult{}, translateError(err)
98 }
99 defer tx.Rollback()
100
101 cutoff := olderThan.UTC().Format(timeLayout)
102 rows, err := tx.QueryContext(ctx,
103 "SELECT id FROM user_profile WHERE "+extraWhere+" AND "+clockColumn+" < ? LIMIT ?",
104 cutoff, maxRows)
105 if err != nil {
106 return dao.SweepResult{}, translateError(err)
107 }
108 var ids []string
109 for rows.Next() {
110 var id string
111 if err := rows.Scan(&id); err != nil {
112 rows.Close()
113 return dao.SweepResult{}, translateError(err)
114 }
115 ids = append(ids, id)
116 }
117 rows.Close()
118 if err := rows.Err(); err != nil {
119 return dao.SweepResult{}, translateError(err)
120 }
121
122 examined := len(ids)
123 deleted := 0
124 for _, id := range ids {
125 res, err := tx.ExecContext(ctx, "DELETE FROM user_profile WHERE id = ?", id)
126 if err != nil {
127 return dao.SweepResult{}, translateError(err)
128 }
129 n, err := res.RowsAffected()
130 if err != nil {
131 return dao.SweepResult{}, translateError(err)
132 }
133 if n == 0 {
134 continue
135 }
136 deleted++
137 deletionID := uuid.NewString()
138 if _, err := tx.ExecContext(ctx, `
139 INSERT INTO deletion_log (id, profile_id, source, reason, external_ref, job_run_id, deleted_at)
140 VALUES (?, ?, ?, 'retention_sweep', NULL, NULL, ?)`,
141 deletionID, id, string(class), time.Now().UTC().Format(timeLayout)); err != nil {
142 return dao.SweepResult{}, translateError(err)
143 }
144 }
145
146 var oldest sql.NullString
147 if err := tx.QueryRowContext(ctx, "SELECT MIN("+clockColumn+") FROM user_profile WHERE "+extraWhere).Scan(&oldest); err != nil {
148 return dao.SweepResult{}, translateError(err)
149 }
150 var oldestPtr *time.Time
151 if oldest.Valid {
152 t, err := time.Parse(timeLayout, oldest.String)
153 if err != nil {
154 return dao.SweepResult{}, translateError(err)
155 }
156 oldestPtr = &t
157 }
158
159 if err := tx.Commit(); err != nil {
160 return dao.SweepResult{}, translateError(err)
161 }
162
163 return dao.SweepResult{
164 RowsExamined: examined,
165 RowsDeleted: deleted,
166 OldestSurvivingAt: oldestPtr,
167 Drained: examined < maxRows,
168 }, nil
169 }
170
171 func (r *repository) DeleteProfile(ctx context.Context, id string, externalRef *string) error {
172 tx, err := r.db.BeginTx(ctx, nil)
173 if err != nil {
174 return translateError(err)
175 }
176 defer tx.Rollback()
177
178 var source string
179 if err := tx.QueryRowContext(ctx, "SELECT source FROM user_profile WHERE id = ?", id).Scan(&source); err != nil {
180 if err == sql.ErrNoRows {
181 return dao.ErrNotFound
182 }
183 return translateError(err)
184 }
185
186 res, err := tx.ExecContext(ctx, "DELETE FROM user_profile WHERE id = ?", id)
187 if err != nil {
188 return translateError(err)
189 }
190 n, err := res.RowsAffected()
191 if err != nil {
192 return translateError(err)
193 }
194 if n == 0 {
195 return dao.ErrNotFound
196 }
197
198 deletionID := uuid.NewString()
199 if _, err := tx.ExecContext(ctx, `
200 INSERT INTO deletion_log (id, profile_id, source, reason, external_ref, job_run_id, deleted_at)
201 VALUES (?, ?, ?, 'subject_request', ?, NULL, ?)`,
202 deletionID, id, source, externalRef, time.Now().UTC().Format(timeLayout)); err != nil {
203 return translateError(err)
204 }
205
206 return translateError(tx.Commit())
207 }
208 {
"command": "find /Users/warrenthompson/Source/LoginID-worktrees/LT-37/migrations -type f | xargs -I{} echo {}\necho ---\ncat /Users/warrenthompson/Source/LoginID-worktrees/LT-37/migrations/sqlite/*.sql 2>/dev/null || find /Users/warrenthompson/Source/LoginID-worktrees/LT-37/migrations -iname \"*sqlite*\""
}/Users/warrenthompson/Source/LoginID-worktrees/LT-37/migrations/sqlite/00001_initial_schema.sql
---
-- +goose Up
-- SQLite DDL per 05-data-ops/multi-db-strategy.md §5. Same four tables and
-- the same constraint names as migrations/postgres/, in SQLite types and
-- collations — no trigram index (no SQLite equivalent, omitted rather than
-- faked, per the contract's dialect table).
PRAGMA foreign_keys = ON;
CREATE TABLE auth_method (
id TEXT PRIMARY KEY,
name TEXT NOT NULL UNIQUE,
requires_secret INTEGER NOT NULL,
is_active INTEGER NOT NULL,
created_at TEXT NOT NULL
);
CREATE TABLE user_profile (
id TEXT PRIMARY KEY,
name TEXT COLLATE BINARY NOT NULL CHECK (length(trim(name)) > 0),
phone TEXT CONSTRAINT ck_user_profile_phone_e164 CHECK (phone IS NULL OR (phone GLOB '+[1-9]*' AND length(phone) BETWEEN 8 AND 16 AND NOT phone GLOB '*[^+0-9]*')),
street_address TEXT CONSTRAINT ck_user_profile_street_address_nonempty CHECK (street_address IS NULL OR length(trim(street_address)) > 0),
locality TEXT CONSTRAINT ck_user_profile_locality_nonempty CHECK (locality IS NULL OR length(trim(locality)) > 0),
region TEXT CONSTRAINT ck_user_profile_region_nonempty CHECK (region IS NULL OR length(trim(region)) > 0),
postal_code TEXT CONSTRAINT ck_user_profile_postal_code_nonempty CHECK (postal_code IS NULL OR length(trim(postal_code)) > 0),
country TEXT CHECK (country IS NULL OR (country = upper(country) AND length(country) = 2)),
source TEXT NOT NULL CHECK (source IN ('direct','idp_cache')),
created_at TEXT NOT NULL,
updated_at TEXT NOT NULL
);
CREATE INDEX idx_user_profile_phone ON user_profile (phone);
-- No trigram/expression index here — SQLite has no GIN equivalent;
-- Search falls back to a full scan, documented in the contract.
CREATE TABLE user_credential (
id TEXT PRIMARY KEY,
user_id TEXT NOT NULL REFERENCES user_profile(id) ON DELETE CASCADE,
username TEXT NOT NULL,
method_id TEXT NOT NULL CONSTRAINT fk_user_credential_method REFERENCES auth_method(id),
secret BLOB,
secret_state TEXT NOT NULL CHECK (secret_state IN ('none','set','revoked')),
hash_algo TEXT,
hash_cost INTEGER,
created_at TEXT NOT NULL,
updated_at TEXT NOT NULL,
CONSTRAINT ck_user_credential_secret_state CHECK (
(secret_state = 'set' AND secret IS NOT NULL AND hash_algo IS NOT NULL AND hash_cost IS NOT NULL)
OR
(secret_state IN ('none','revoked') AND secret IS NULL AND hash_algo IS NULL AND hash_cost IS NULL)
)
);
CREATE UNIQUE INDEX uq_user_credential_username ON user_credential (LOWER(username));
CREATE INDEX idx_user_credential_user_id ON user_credential (user_id);
CREATE INDEX idx_user_credential_method_id ON user_credential (method_id);
CREATE TABLE deletion_log (
id TEXT PRIMARY KEY,
profile_id TEXT NOT NULL,
source TEXT NOT NULL,
reason TEXT NOT NULL CONSTRAINT ck_deletion_log_reason CHECK (reason IN ('retention_sweep','subject_request')),
external_ref TEXT,
job_run_id TEXT,
deleted_at TEXT NOT NULL
);
-- No name, phone, address, username or secret column — contract §6.11.
-- +goose Down
DROP TABLE deletion_log;
DROP TABLE user_credential;
DROP TABLE user_profile;
DROP TABLE auth_method;{
"command": "mkdir -p /tmp/sqlite-probe && cd /tmp/sqlite-probe && cat > go.mod << 'EOF'\nmodule probe\n\ngo 1.27\nEOF\ncp -r /Users/warrenthompson/Source/LoginID-worktrees/LT-37/migrations .\ncat > main.go << 'GOEOF'\npackage main\n\nimport (\n\t\"database/sql\"\n\t\"fmt\"\n\t\"os\"\n\t\"strings\"\n\n\tsqlitedriver \"modernc.org/sqlite\"\n\t_ \"modernc.org/sqlite\"\n)\n\nfunc upSQL(path string) string {\n\tb, _ := os.ReadFile(path)\n\tc := string(b)\n\ts := strings.Index(c, \"-- +goose Up\")\n\te := strings.Index(c, \"-- +goose Down\")\n\treturn c[s+len(\"-- +goose Up\") : e]\n}\n\nfunc report(db *sql.DB, label, query string, args ...any) {\n\t_, err := db.Exec(query, args...)\n\tif err == nil {\n\t\tfmt.Printf(\"%-45s NO ERROR (constraint didn't fire!)\\n\", label)\n\t\treturn\n\t}\n\tvar sqErr *sqlitedriver.Error\n\tif e, ok := err.(*sqlitedriver.Error); ok {\n\t\tsqErr = e\n\t}\n\tfmt.Printf(\"%-45s code=%v msg=%q\\n\", label, func() any { if sqErr != nil { return sqErr.Code() }; return \"n/a\" }(), err.Error())\n}\n\nfunc main() {\n\tdb, err := sql.Open(\"sqlite\", \":memory:\")\n\tif err != nil { panic(err) }\n\tif _, err := db.Exec(\"PRAGMA foreign_keys = ON\"); err != nil { panic(err) }\n\tif _, err := db.Exec(upSQL(\"migrations/sqlite/00001_initial_schema.sql\")); err != nil { panic(err) }\n\n\t// seed one auth method\n\tdb.Exec(\"INSERT INTO auth_method (id, name, requires_secret, is_active, created_at) VALUES ('m1','password',1,1,'2020-01-01T00:00:00Z')\")\n\n\treport(db, \"name empty CHECK (unnamed)\", \"INSERT INTO user_profile (id,name,source,created_at,updated_at) VALUES ('p1',' ','direct','x','x')\")\n\treport(db, \"country bad CHECK (unnamed)\", \"INSERT INTO user_profile (id,name,country,source,created_at,updated_at) VALUES ('p2','ok','usa','direct','x','x')\")\n\treport(db, \"source bad CHECK (unnamed)\", \"INSERT INTO user_profile (id,name,source,created_at,updated_at) VALUES ('p3','ok','bogus','x','x')\")\n\treport(db, \"phone bad CHECK (named)\", \"INSERT INTO user_profile (id,name,phone,source,created_at,updated_at) VALUES ('p4','ok','notaphone','direct','x','x')\")\n\treport(db, \"street_address empty (named)\", \"INSERT INTO user_profile (id,name,street_address,source,created_at,updated_at) VALUES ('p5','ok',' ','direct','x','x')\")\n\n\tdb.Exec(\"INSERT INTO user_profile (id,name,source,created_at,updated_at) VALUES ('p6','ok','direct','x','x')\")\n\treport(db, \"secret_state column CHECK (unnamed)\", \"INSERT INTO user_credential (id,user_id,username,method_id,secret,secret_state,created_at,updated_at) VALUES ('c1','p6','u1','m1',NULL,'bogus','x','x')\")\n\treport(db, \"secret_state table CHECK (named)\", \"INSERT INTO user_credential (id,user_id,username,method_id,secret,secret_state,hash_algo,hash_cost,created_at,updated_at) VALUES ('c2','p6','u2','m1',NULL,'set',NULL,NULL,'x','x')\")\n\treport(db, \"deletion_log reason CHECK (named)\", \"INSERT INTO deletion_log (id,profile_id,source,reason,deleted_at) VALUES ('d1','p6','direct','bogus','x')\")\n\treport(db, \"duplicate username (unique)\", \"INSERT INTO user_credential (id,user_id,username,method_id,secret,secret_state,created_at,updated_at) VALUES ('c3','p6','U1','m1',NULL,'none','x','x')\")\n\treport(db, \"unknown method FK\", \"INSERT INTO user_credential (id,user_id,username,method_id,secret,secret_state,created_at,updated_at) VALUES ('c4','p6','u3','nope',NULL,'none','x','x')\")\n\treport(db, \"duplicate PK\", \"INSERT INTO user_profile (id,name,source,created_at,updated_at) VALUES ('p6','dup','direct','x','x')\")\n}\nGOEOF\ngo mod tidy 2>&1 | tail -5\ngo run . 2>&1"
}go: finding module for package modernc.org/sqlite
go: found modernc.org/sqlite in modernc.org/sqlite v1.58.0
name empty CHECK (unnamed) code=275 msg="constraint failed: CHECK constraint failed: length(trim(name)) > 0 (275)"
country bad CHECK (unnamed) code=275 msg="constraint failed: CHECK constraint failed: country IS NULL OR (country = upper(country) AND length(country) = 2) (275)"
source bad CHECK (unnamed) code=275 msg="constraint failed: CHECK constraint failed: source IN ('direct','idp_cache') (275)"
phone bad CHECK (named) code=275 msg="constraint failed: CHECK constraint failed: ck_user_profile_phone_e164 (275)"
street_address empty (named) code=275 msg="constraint failed: CHECK constraint failed: ck_user_profile_street_address_nonempty (275)"
secret_state column CHECK (unnamed) code=275 msg="constraint failed: CHECK constraint failed: secret_state IN ('none','set','revoked') (275)"
secret_state table CHECK (named) code=275 msg="constraint failed: CHECK constraint failed: ck_user_credential_secret_state (275)"
deletion_log reason CHECK (named) code=275 msg="constraint failed: CHECK constraint failed: ck_deletion_log_reason (275)"
duplicate username (unique) NO ERROR (constraint didn't fire!)
unknown method FK code=787 msg="constraint failed: FOREIGN KEY constraint failed (787)"
duplicate PK code=1555 msg="constraint failed: UNIQUE constraint failed: user_profile.id (1555)"
Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery{
"command": "cd /Users/warrenthompson/Source/LoginID-worktrees/LT-37 && go build ./... && go vet ./... && go test ./... -v 2>&1 | tail -120"
}? loginid-takehome/cmd/api-service [no test files] ? loginid-takehome/cmd/idp-connector [no test files] === RUN TestHealthz --- PASS: TestHealthz (0.00s) PASS ok loginid-takehome/internal/app (cached) === RUN TestLoad_DSNFilePrecedence --- PASS: TestLoad_DSNFilePrecedence (0.00s) === RUN TestLoad_DSNEnvFallback --- PASS: TestLoad_DSNEnvFallback (0.00s) === RUN TestLoad_AppModeDefault --- PASS: TestLoad_AppModeDefault (0.00s) PASS ok loginid-takehome/internal/config (cached) === RUN TestConformance_Repository --- PASS: TestConformance_Repository (0.00s) === RUN TestConformance_SubInterfaces --- PASS: TestConformance_SubInterfaces (0.00s) === RUN TestConformance_ProfileQuery --- PASS: TestConformance_ProfileQuery (0.00s) === RUN TestConformance_RetentionTypes --- PASS: TestConformance_RetentionTypes (0.00s) === RUN TestConformance_DomainTypes --- PASS: TestConformance_DomainTypes (0.00s) === RUN TestConformance_SentinelMessages --- PASS: TestConformance_SentinelMessages (0.00s) === RUN TestConformance_SentinelSetIsExactlyTheFrozenSeven --- PASS: TestConformance_SentinelSetIsExactlyTheFrozenSeven (0.00s) === RUN TestContractChecksumUpToDate --- PASS: TestContractChecksumUpToDate (0.00s) === RUN TestValidateCreateID --- PASS: TestValidateCreateID (0.00s) === RUN TestValidateProfilePointers_Phone --- PASS: TestValidateProfilePointers_Phone (0.00s) === RUN TestValidateProfilePointers_StreetAddress --- PASS: TestValidateProfilePointers_StreetAddress (0.00s) === RUN TestValidateProfilePointers_Locality --- PASS: TestValidateProfilePointers_Locality (0.00s) === RUN TestValidateProfilePointers_Region --- PASS: TestValidateProfilePointers_Region (0.00s) === RUN TestValidateProfilePointers_PostalCode --- PASS: TestValidateProfilePointers_PostalCode (0.00s) === RUN TestValidateProfilePointers_Country --- PASS: TestValidateProfilePointers_Country (0.00s) === RUN TestValidateCredentialPointers_HashAlgo --- PASS: TestValidateCredentialPointers_HashAlgo (0.00s) === RUN TestPrepareCreateProfileWithCredential_ClearsCallerSuppliedUserID --- PASS: TestPrepareCreateProfileWithCredential_ClearsCallerSuppliedUserID (0.00s) PASS ok loginid-takehome/internal/dao 0.191s === RUN TestCheckConstraintName --- PASS: TestCheckConstraintName (0.00s) === RUN TestTranslateError_NotFoundAndNil --- PASS: TestTranslateError_NotFoundAndNil (0.00s) === RUN TestTranslateError_UnclassifiedNeverLeaksMessage --- PASS: TestTranslateError_UnclassifiedNeverLeaksMessage (0.00s) === RUN TestEscapeLike --- PASS: TestEscapeLike (0.00s) === RUN TestIntegration_ProfileCRUD --- PASS: TestIntegration_ProfileCRUD (0.00s) === RUN TestIntegration_IDIsAppGeneratedAndStructurallyLikePostgres --- PASS: TestIntegration_IDIsAppGeneratedAndStructurallyLikePostgres (0.00s) === RUN TestIntegration_CreateWithCallerSuppliedID --- PASS: TestIntegration_CreateWithCallerSuppliedID (0.00s) === RUN TestIntegration_UpdateMissingRow --- PASS: TestIntegration_UpdateMissingRow (0.00s) === RUN TestIntegration_UpsertExcludesCreatedAtFromUpdate --- PASS: TestIntegration_UpsertExcludesCreatedAtFromUpdate (1.10s) === RUN TestIntegration_UpsertInsertsWhenAbsent --- PASS: TestIntegration_UpsertInsertsWhenAbsent (0.00s) === RUN TestIntegration_SearchLikeEscaping --- PASS: TestIntegration_SearchLikeEscaping (0.00s) === RUN TestIntegration_SearchCaseFoldingASCII --- PASS: TestIntegration_SearchCaseFoldingASCII (0.00s) === RUN TestIntegration_SearchPagination --- PASS: TestIntegration_SearchPagination (0.00s) === RUN TestIntegration_SearchEmptyQueryIsLegal --- PASS: TestIntegration_SearchEmptyQueryIsLegal (0.00s) === RUN TestIntegration_SearchInvalidQuery --- PASS: TestIntegration_SearchInvalidQuery (0.00s) === RUN TestIntegration_CredentialCRUDAndErrorTranslation --- PASS: TestIntegration_CredentialCRUDAndErrorTranslation (0.00s) === RUN TestIntegration_ListByUserID_EmptyNotError --- PASS: TestIntegration_ListByUserID_EmptyNotError (0.00s) === RUN TestIntegration_CreateProfileWithCredential_Atomic --- PASS: TestIntegration_CreateProfileWithCredential_Atomic (0.00s) === RUN TestIntegration_CreateProfileWithCredential_IgnoresCallerSuppliedUserID --- PASS: TestIntegration_CreateProfileWithCredential_IgnoresCallerSuppliedUserID (0.00s) === RUN TestIntegration_DeleteExpiredAndOldestSurviving --- PASS: TestIntegration_DeleteExpiredAndOldestSurviving (0.00s) === RUN TestIntegration_DeleteExpired_MaxRowsBounds --- PASS: TestIntegration_DeleteExpired_MaxRowsBounds (0.00s) === RUN TestIntegration_DeleteProfile_SubjectRequest --- PASS: TestIntegration_DeleteProfile_SubjectRequest (0.00s) === RUN TestIntegration_DeleteProfile_NotFound --- PASS: TestIntegration_DeleteProfile_NotFound (0.00s) === RUN TestIntegration_ProfileDeleteCascadesToCredentials --- PASS: TestIntegration_ProfileDeleteCascadesToCredentials (0.00s) PASS ok loginid-takehome/internal/dao/sqlite 1.256s ? loginid-takehome/internal/model [no test files] Shell cwd was reset to /Users/warrenthompson/Source/LoginID/03-engineering-delivery
{
"command": "grep -n \"ErrInvalidCredential\\|secret_state\\|SecretState\" /Users/warrenthompson/Source/LoginID-worktrees/LT-37/internal/dao/sqlite/integration_test.go"
}219: UserID: profile.ID, Username: "alice", MethodID: methodID, SecretState: "none",
234: UserID: profile.ID, Username: "Alice", MethodID: methodID, SecretState: "none",
241: UserID: profile.ID, Username: "bob", MethodID: "nonexistent-method-id", SecretState: "none",
248: UserID: profile.ID, Username: "carol", MethodID: methodID, SecretState: "set",
250: if !errors.Is(err, dao.ErrInvalidCredential) {
251: t.Errorf("secret_state=set with no secret = %v, want ErrInvalidCredential", err)
284: &model.UserCredential{UserID: "ignored-on-input", Username: "dave", MethodID: methodID, SecretState: "none"},
297: &model.UserCredential{Username: "dave", MethodID: methodID, SecretState: "none"},
320: &model.UserCredential{UserID: "attacker-supplied-mismatch", Username: "erin", MethodID: methodID, SecretState: "none"},
441: UserID: profile.ID, Username: "cascadetest", MethodID: methodID, SecretState: "none",{
"command": "grep -n \"var results\\|make(\\[\\]\" /Users/warrenthompson/Source/LoginID-worktrees/LT-37/internal/dao/sqlite/*.go"
}/Users/warrenthompson/Source/LoginID-worktrees/LT-37/internal/dao/sqlite/credentials.go:54: var results []model.UserCredential /Users/warrenthompson/Source/LoginID-worktrees/LT-37/internal/dao/sqlite/methods.go:56: var results []model.AuthMethod /Users/warrenthompson/Source/LoginID-worktrees/LT-37/internal/dao/sqlite/profiles.go:102: var results []model.UserProfile
{
"command": "python3 ~/.claude/skills/profile-gen/scripts/show_profile.py --profile /Users/warrenthompson/Source/LoginID/03-engineering-delivery/profiles/oren-castellan/oren-castellan.md --root /Users/warrenthompson/Source/LoginID/03-engineering-delivery"
}{"name": "Oren Castellan", "mode": "hud", "hud": true, "badge": false, "background": false, "inline": false}{
"command": "python3 ~/.claude/skills/profile-gen/scripts/show_profile.py --profile /Users/warrenthompson/Source/LoginID/03-engineering-delivery/profiles/oren-castellan/oren-castellan.md --root /Users/warrenthompson/Source/LoginID/03-engineering-delivery"
}{"name": "Oren Castellan", "mode": "hud", "hud": true, "badge": false, "background": false, "inline": false}