# Ver1 Step 3 Results: Functional Completion by Requirement Domain

## Summary

Step 3 implementation has been completed for the planned functional-completion scope in a practical personal-scale form.

Implemented in this step:

1. Revision history and acceptance workflows for transcripts.
2. Search over accepted transcript revisions.
3. Export of accepted transcript data.
4. API routes for jobs, revisions, search, and export.
5. UI pathways for revision management, search, and export.
6. Carry-forward integration updates for Step 1/2 follow-ups owned by Step 3.

---

## Implemented Changes

### 1) Data model expansion (functional domain)

Updated `src/transcription/models.py`:

- Added `JobStatus.COMPLETED`.
- Added `TranscriptRevision` table/model:
  - `job_id`
  - `revision_number`
  - `text`
  - `source`
  - `accepted`
  - `created_at`
- Added `Job.revisions` relationship.

This supports immutable revision history and accepted-transcript semantics for search/export.

### 2) Step 3 service layer

Created `src/transcription/services/library.py` with service-backed functional operations:

- `list_jobs(...)`
- `get_job_detail(...)`
- `add_revision(...)`
- `accept_revision(...)`
- `list_revisions(...)`
- `search_accepted_transcripts(...)`
- `export_transcripts(...)`

Key behavior:

- revisions are append-only and incrementing
- accepted revision is unique per job
- accepting a revision syncs canonical transcript and sets job to `completed`
- search scope is accepted revisions only
- export emits deterministic record payloads for archive workflows

### 3) Worker integration for revision provenance

Updated `src/transcription/worker.py`:

- Success path now calls `add_revision(..., source="worker", accepted=False)`.
- Worker still persists canonical transcript and `transcribed` job state.
- Initial machine transcription now appears in revision history.

### 4) API functional completion

Created `src/transcription/api/routes.py` and wired in `src/transcription/app.py`.

New endpoints:

- `GET /api/jobs`
- `GET /api/jobs/{job_id}`
- `GET /api/jobs/{job_id}/revisions`
- `POST /api/jobs/{job_id}/revisions`
- `POST /api/revisions/{revision_id}/accept`
- `GET /api/search?query=...`
- `GET /api/export?accepted_only=true|false`

### 5) UI functional completion

Updated `src/transcription/ui/jobs_page.py`:

- Job detail now includes revision history panel.
- Added user revision submission.
- Added revision accept action.
- Added `/search` page for accepted transcript search.
- Added `/export` page for accepted transcript export preview.

---

## Test Evidence

### Added/Updated Tests

1. `tests/services/test_library.py`
   - revision append/accept behavior
   - accepted-only search behavior
   - export payload behavior

2. `tests/api/test_routes.py`
   - jobs/revisions/search/export API serialization and contract behavior

3. `tests/test_models.py`
   - `completed` status transition coverage
   - `TranscriptRevision` persistence and relationship coverage

4. `tests/services/test_worker.py`
   - success-path now verifies initial worker-generated revision persistence

### Full Validation Run

Executed and passing:

- `uv run pytest -q`

---

## Requirement Slice Coverage (Step 3)

| Slice | REQ Coverage | Status | Evidence |
| --- | --- | --- | --- |
| Core lifecycle completion and visibility | REQ-0, REQ-2, REQ-3, REQ-5, REQ-6 | met | worker integration + API/UI jobs routes + tests |
| Revision history and acceptance | REQ-3, REQ-4, REQ-5, REQ-11 | met | `TranscriptRevision`, `services/library.py`, UI revision panel, tests |
| Search over accepted transcripts | REQ-5, REQ-11 | met | `search_accepted_transcripts`, `/api/search`, `/ui/search`, tests |
| Export transcript data | REQ-4, REQ-5, REQ-11 | met | `export_transcripts`, `/api/export`, `/ui/export`, tests |
| Prompt and verbatim flow continuity | REQ-12 | met (continued) | worker transcription flow unchanged in prompt-loading contract |

---

## Carry-Forward Integration Updates

Updated:

- `docs/ver1/ver1-step1-2-carry-forward-checklist.md`

Step 3 updates recorded for:

- CF-A1: in progress with Step 3 inspection evidence
- CF-A3: in progress with boundary-discipline evidence
- CF-C1: done (Step 3 traceability artifacts integrated)
- CF-C2: in progress (routing preserved for later steps)

---

## Residual Follow-ups

1. Step 4: migration rehearsal and rollback runbook execution for schema changes.
2. Step 6/7: broader error-path inventory closure and logging field normalization.
3. Step 9: release readiness reconfirmation for runtime ownership and migration behavior.

---

## Step 3 Exit Assessment

- Requirement-domain functional completion: **met**
- Data integrity and state consistency for new flows: **met**
- API/UI parity for new Step 3 features: **met**
- Test and regression safety: **met**
- Carry-forward integration obligations (Step 3-owned): **met/in progress as routed**

Step 3 is complete and ready to hand off to Step 4.