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brain-of-reese/alembic/versions/0027_documents_page_strip_mode.py
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phase: 163_pdf_strip_additive_selfheal
All gates verified. Final report:

**Phase 163 — final verification pass (all 5 tasks already complete; verification-only run)**

- Verified D1–D4 in code: `page_strip_mode` column + migration 0027, `DocContent` absent-never-null rule keyed off `page_count`; `_persist_pdf_pages` render → atomic tmp+`os.replace` writes → stale-tail-last + `strip_class` stamp; `_regate_pdf_strip` on both unchanged paths (mirror gate, heal, repair, fail-soft, one INFO line only when acting); viewer mode branch + Text/Pages toggle (Text default, `aria-pressed`, no innerHTML, lazy imgs).
- `uv run pytest --cov=app --cov-report=term-missing` → **3796 tests, exit 0, coverage 99%** (>90%)
- `uv run pytest tests/e2e/test_pdf_strip_additive_selfheal.py -v --no-cov` → **5 passed** in isolation
- `test_pdf_pages_in_sources + test_pictorial_pdf + test_garbage_pdf` → 10 passed; `test_document_viewer(_context) + test_image_documents` → 20 passed
- `uv run ruff check .` clean; `uv run pyright` → 0 errors; alembic **0027 downgrade→upgrade CLI round-trip clean** (+ integration pins)
- Completion criteria: additive view w/ toggle ✅ · primary DOM byte-identity ✅ · write-first order/mid-write-failure/atomic pins ✅ · heal + repair E2E ✅ · zero vision/LLM on fast path (mock-captured) ✅ · non-qualifying payload byte-identity ✅ · docs pass ✅
- **Documentation**: README.md + AGENTS.md reviewed in full — the phase's updates are accurate; all config-table defaults cross-checked against `app/config.py` (no drift), every page route, script, and E2E command referenced exists, every `.env.example` var documented — **verified consistent, no changes needed**.
- Notable: live `Letumdei` repair is owner-runtime post-deploy per D5 (next production Sync self-heals; no live changes made); the modified `.agents/screenshots/doc_modal_scrollbar_1280.png` is an E2E-regenerated artifact left for the pipeline commit.
- **Next pending phase:** `164_chat_error_honesty`
2026-10-07 13:57:30 -04:00

69 lines
2.8 KiB
Python

"""documents.page_strip_mode: the strip CLASS behind page_count (phase 163, task 01)
Revision ID: 0027
Revises: 0026
Create Date: 2026-10-08
Phase 163 (the PDF page strip is ADDITIVE for a text-bearing book —
task 01, storage only):
* ``documents.page_strip_mode`` — VARCHAR(16) NULLABLE, NO server
default, NO index: the CLASS of the page strip a non-NULL
``page_count`` describes, so the viewer knows whether the strip
REPLACES the text or sits one toggle behind it.
``"primary"`` — the phase-133 FALLBACK class (an unusable text layer:
the screenshots ARE the content), i.e. exactly the pre-phase view: the
strip is the document's view and no text is shown. ``"additive"`` —
the phase-140 PICTORIAL class (a usable text layer with ≥1 sparse page
described): the document keeps its text view and its Summary panel,
and the strip is one Text/Pages toggle away.
NULL means NO strip (every non-qualifying document — text documents,
images, text-heavy PDFs — and every qualifying PDF whose render/write
failed). A row written before this phase keeps NULL while its
``page_count`` stands; the wire omits the key in that case and the
viewer treats an absent mode as ``"primary"`` (today's DOM), so
existing rows render exactly as before until the fast-path re-gate
(task 03) stamps them. Stamped and cleared EXACTLY with
``page_count`` — the importer's persist (task 02) and the unchanged-
path re-gate (task 03) are the only writers.
A display fact, never a query surface, like the 0026 column it
accompanies: the content endpoint reads it from the ROW after the
``(source, path)`` lookup, so it carries no index of its own (the
``file_hash`` convention, 0025).
One additive, fully reversible migration (A13); no other schema change.
The ordering of the copies on disk (task 02) and the re-gate itself
(task 03) are importer code — this revision only carries the column.
"""
from __future__ import annotations
import sqlalchemy as sa
from alembic import op
revision = "0027"
down_revision = "0026"
branch_labels = None
depends_on = None
def upgrade() -> None:
# No index (a display fact, never a query surface — the content
# endpoint reads it from the row) and no server default (NULL is the
# meaningful state for every non-qualifying document, every fail-soft
# miss, and every pre-phase row).
op.add_column(
"documents", sa.Column("page_strip_mode", sa.String(length=16), nullable=True)
)
def downgrade() -> None:
# The page_strip_mode column is the only 0027 artefact — dropping it
# leaves 0026's schema byte-identical (A13, fully reversible). The
# class is re-derivable from the source file on the next sync (the
# deterministic re-gate of task 03), so no data is lost by the drop.
op.drop_column("documents", "page_strip_mode")