import logging
import logging.handlers
import os
from contextlib import asynccontextmanager
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from fastapi.staticfiles import StaticFiles
from apscheduler.schedulers.asyncio import AsyncIOScheduler

from .database import init_db
from .config import get_settings
from .services.file_watcher import start_file_watcher, stop_file_watcher
from .services.podcast_feed import update_all_feeds


def _setup_logging():
    settings = get_settings()
    os.makedirs(settings.log_dir, exist_ok=True)

    fmt = logging.Formatter("%(asctime)s %(levelname)s %(name)s: %(message)s")

    root = logging.getLogger()
    root.setLevel(logging.INFO)

    # Console (bestehend)
    console = logging.StreamHandler()
    console.setFormatter(fmt)
    root.addHandler(console)

    # app.log — alle Logs
    app_fh = logging.handlers.RotatingFileHandler(
        os.path.join(settings.log_dir, "app.log"),
        maxBytes=5_000_000, backupCount=2, encoding="utf-8"
    )
    app_fh.setFormatter(fmt)
    root.addHandler(app_fh)

    # matching.log — nur Matching-bezogene Logger
    match_fh = logging.handlers.RotatingFileHandler(
        os.path.join(settings.log_dir, "matching.log"),
        maxBytes=5_000_000, backupCount=2, encoding="utf-8"
    )
    match_fh.setFormatter(fmt)
    for name in ("app.services.matcher", "app.services.matching"):
        logging.getLogger(name).addHandler(match_fh)


_setup_logging()
logger = logging.getLogger(__name__)

_scheduler = AsyncIOScheduler()


@asynccontextmanager
async def lifespan(app: FastAPI):
    settings = get_settings()
    for d in [settings.hls_cache_dir, settings.covers_dir, settings.log_dir]:
        os.makedirs(d, exist_ok=True)

    await init_db()
    await start_file_watcher()

    _scheduler.add_job(update_all_feeds, "interval", hours=settings.podcast_update_interval_hours, id="feed_update")
    _scheduler.start()

    logger.info("Audiolib gestartet.")
    yield

    stop_file_watcher()
    _scheduler.shutdown(wait=False)
    logger.info("Audiolib gestoppt.")


app = FastAPI(title="Audiolib", version="2.4.0", lifespan=lifespan)

app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

settings = get_settings()
if os.path.exists(settings.covers_dir):
    app.mount("/covers", StaticFiles(directory=settings.covers_dir), name="covers")

from .routers import auth, libraries, items, stream, me, users, settings as settings_router
from .routers import matching, podcasts, setup, filebrowser, logs

app.include_router(setup.router)
app.include_router(auth.router)
app.include_router(libraries.router)
app.include_router(items.router)
app.include_router(stream.router)
app.include_router(me.router)
app.include_router(users.router)
app.include_router(settings_router.router)
app.include_router(matching.router)
app.include_router(podcasts.router)
app.include_router(filebrowser.router)
app.include_router(logs.router)