homelab-codex-ws/services/kb-query/app/db.py
oskar a73a986bbe feat(kb-query): add search frontend (module 5 phase 4, plan §7, Krok 4)
Krok 4 of the phase-4 plan done ahead of the local-embed-fallback step
(Krok 2, deliberately deferred -- embed stays a plain SOLARIA call, per
task instruction): one FastAPI process now serves both the /search API
and the UI, no separate frontend build (plan §2 decision 4).

- GET / renders a Jinja2 shell; app/static/app.js (vanilla, no build) and
  style.css are the whole client. Query -> /search, results grouped by
  envelope_id client-side (chunks sorted by dist, <details> fragments).
- Colour thresholds per plan §7: dist<0.45 green, 0.45-0.55 yellow (still
  shown with a warning), >0.55 never rendered as an individual result; if
  a query ends up with nothing renderable, one "Brak odpowiedzi w KB"
  message replaces the list, carrying the best observed dist.
- Paperless hits link out; gmail hits get a "kopiuj Message-ID" button
  (there's nothing to link to yet, plan §2 decision 3) plus header
  metadata. Cascade/flat toggle defaults to cascade. Footer shows
  sol_status, refreshed from /healthz on load and after each search.
- /search gained additive summary/summary_tags fields (document_summary,
  haiku track) so the UI can show a document summary as each result
  group's header -- non-breaking, existing response shape untouched.
- Tests: app/db.py + app/search.py unit tests (mocked DB/HTTP, no live
  deps) cover the new summary join; tests/test_frontend.py drives GET /
  and /static/* via TestClient without running the DB-requiring lifespan;
  tests/frontend/app.test.js (Node's built-in test runner, no framework)
  covers query-URL encoding, threshold colouring, and envelope grouping.
- Verified live: docker build + container against kb-postgres@PIHA over
  LAN and Ollama@SOLARIA over Tailscale -- GET / (HTML), /static/app.js,
  /healthz, and /search (cascade + flat) all round-tripped correctly,
  including real summary/summary_tags data.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-07-22 16:49:36 +02:00

56 lines
2 KiB
Python

"""kb-postgres access for kb-query beyond what `kb_retrieval.retrieval` covers -- the envelope
join (`source` + `entities` for link/metadata building, app/links.py) is out of scope for the
shared retrieval package (module 5 phase 4 plan §4: "to jest nowy kod w warstwie
HTTP-handlera kb-query, nie zmiana w kb_retrieval")."""
from __future__ import annotations
import json
import asyncpg
async def create_pool(dsn: str) -> asyncpg.Pool:
return await asyncpg.create_pool(dsn, min_size=1, max_size=5)
def _decode_jsonb(value: object) -> object:
"""asyncpg may return jsonb as a str or an already-decoded object."""
if value is None:
return None
if isinstance(value, str):
return json.loads(value)
return value
async def fetch_envelopes(conn: asyncpg.Connection, envelope_ids: list[str]) -> dict[str, dict]:
"""Batch-fetch `source`/`entities` for a set of chunk hits, keyed by envelope id."""
if not envelope_ids:
return {}
rows = await conn.fetch(
"SELECT id, source, entities FROM envelope WHERE id = ANY($1::text[])",
envelope_ids,
)
return {
r["id"]: {"source": r["source"], "entities": _decode_jsonb(r["entities"]) or []}
for r in rows
}
async def fetch_summaries(
conn: asyncpg.Connection, envelope_ids: list[str], summary_model: str
) -> dict[str, dict]:
"""Batch-fetch `document_summary.summary`/`tags` (the haiku compilation track) for the
envelopes a search hit, keyed by envelope id -- frontend krok (plan §7): document summary
as the per-envelope result header, chunks as its expandable fragments."""
if not envelope_ids:
return {}
rows = await conn.fetch(
"SELECT envelope_id, summary, tags FROM document_summary "
"WHERE envelope_id = ANY($1::text[]) AND model = $2",
envelope_ids, summary_model,
)
return {
r["envelope_id"]: {"summary": r["summary"], "tags": _decode_jsonb(r["tags"]) or []}
for r in rows
}