78 lines
2.7 KiB
Python
78 lines
2.7 KiB
Python
# app/main.py
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"""FastAPI application factory for pagepiper."""
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from __future__ import annotations
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import logging
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import os
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from contextlib import asynccontextmanager
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from fastapi import FastAPI
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from app.config import DB_PATH, VEC_DB_PATH, VEC_DIMENSIONS
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from app.services.bm25_index import BM25Index
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from app.services.colbert_index import ColBERTIndex
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logger = logging.getLogger("pagepiper")
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# Per-user BM25 registry — keyed by user_id; "__local__" for single-user mode
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_bm25_map: dict[str, BM25Index] = {}
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# Per-user ColBERT registry — keyed by user_id; index files live under
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# <user_dir>/colbert_index/ (see _get_colbert_for)
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_colbert_map: dict[str, ColBERTIndex] = {}
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def _get_bm25_for(user_id: str) -> BM25Index:
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if user_id not in _bm25_map:
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_bm25_map[user_id] = BM25Index()
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return _bm25_map[user_id]
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def _get_colbert_for(user_id: str, user_dir) -> ColBERTIndex:
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if user_id not in _colbert_map:
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index_dir = str(user_dir / "colbert_index")
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_colbert_map[user_id] = ColBERTIndex(index_dir=index_dir)
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return _colbert_map[user_id]
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@asynccontextmanager
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async def lifespan(app: FastAPI):
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from app.cloud_session import CLOUD_MODE
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from app.config import LOCAL_USER_ID
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from app.startup import apply_migrations, check_and_rebuild_vec_schema
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embed_model = os.environ.get("PAGEPIPER_EMBED_MODEL", "nomic-embed-text")
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logger.info("Pagepiper starting — embed model: %s, dims: %d", embed_model, VEC_DIMENSIONS)
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if CLOUD_MODE:
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from app.startup import warn_if_unencrypted
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from app.config import DATA_DIR
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warn_if_unencrypted(str(DATA_DIR))
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else:
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# In cloud mode, per-user migration and vec schema check run on first request (deps.py).
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from app.config import DATA_DIR
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apply_migrations(DB_PATH)
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check_and_rebuild_vec_schema(VEC_DB_PATH, VEC_DIMENSIONS, DB_PATH)
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_get_bm25_for(LOCAL_USER_ID).mark_dirty()
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_get_colbert_for(LOCAL_USER_ID, DATA_DIR).mark_dirty()
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yield
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app = FastAPI(title="Pagepiper", lifespan=lifespan)
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# Register routers
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from app.api.library import router as library_router # noqa: E402
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from app.api.shelve import router as shelve_router # noqa: E402
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from app.api.search import router as search_router # noqa: E402
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from app.api.chat import router as chat_router # noqa: E402
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from app.api.feedback import router as feedback_router # noqa: E402
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from app.api.feedback_attach import router as feedback_attach_router # noqa: E402
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app.include_router(library_router)
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app.include_router(shelve_router)
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app.include_router(search_router)
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app.include_router(chat_router)
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app.include_router(feedback_router, prefix="/api/v1/feedback")
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app.include_router(feedback_attach_router, prefix="/api/v1/feedback")
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