import asyncio
import logging
from contextlib import asynccontextmanager

from fastapi import FastAPI

from app.core.config import settings
from app.routers import categories, documents
from app.routers import plugin as plugin_router

logger = logging.getLogger(__name__)


@asynccontextmanager
async def lifespan(app: FastAPI):
    loop = asyncio.get_running_loop()
    watcher = None

    try:
        from app.services.config_reader import get_storage_config
        storage_config = await get_storage_config()
        if storage_config.get("watch_enabled"):
            from app.services.file_watcher import FileWatcherService
            watcher = FileWatcherService(loop)
            await watcher.start(storage_config["watch_path"], storage_config)
    except Exception as exc:
        logger.warning("[doc-service] File watcher could not start: %s", exc)

    yield

    if watcher is not None:
        await watcher.stop()


app = FastAPI(title=settings.PROJECT_NAME, lifespan=lifespan)

# No CORS — this service is only reachable from the main backend on backend-net.
# All browser traffic goes through the main backend proxy.

app.include_router(documents.router, prefix="/documents", tags=["documents"])
app.include_router(categories.router, prefix="/categories", tags=["categories"])
app.include_router(plugin_router.router, prefix="/plugin", tags=["plugin"])


@app.get("/health")
def health():
    return {"status": "ok"}