import asyncio
import logging

from apscheduler.schedulers.asyncio import AsyncIOScheduler
from fastapi import FastAPI, HTTPException
from fastapi.middleware.cors import CORSMiddleware
from fastapi.staticfiles import StaticFiles

from . import db, sync
from .config import IMAGE_BASE, STATIC_DIR

logging.basicConfig(level=logging.INFO, format="%(asctime)s %(levelname)s %(message)s")
log = logging.getLogger("app")

app = FastAPI(title="Netflix Horror DE")
scheduler = AsyncIOScheduler()
sync_lock = asyncio.Lock()

app.add_middleware(
    CORSMiddleware,
    allow_origins=["http://localhost:5173"],
    allow_methods=["*"],
    allow_headers=["*"],
)


async def guarded_sync():
    if sync_lock.locked():
        log.info("Sync läuft bereits")
        return None
    async with sync_lock:
        return await sync.run()


@app.on_event("startup")
async def startup():
    db.init()
    scheduler.add_job(guarded_sync, "cron", hour=4, minute=30, id="daily-sync")
    scheduler.start()
    if not db.get_meta("last_sync"):
        log.info("Leere Datenbank, starte ersten Sync im Hintergrund")
        asyncio.create_task(guarded_sync())


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


@app.get("/api/status")
def status():
    return {
        "last_sync": db.get_meta("last_sync"),
        "movie_count": int(db.get_meta("movie_count") or 0),
        "canon_count": int(db.get_meta("canon_count") or 0),
        "syncing": sync_lock.locked(),
        "image_base": IMAGE_BASE,
    }


@app.get("/api/movies")
def movies():
    return db.all_movies()


@app.get("/api/movies/{movie_id}")
def movie(movie_id: int):
    found = db.get_movie(movie_id)
    if not found:
        raise HTTPException(status_code=404, detail="Film nicht gefunden")
    return found


@app.post("/api/sync")
async def trigger_sync():
    if sync_lock.locked():
        return {"started": False, "reason": "läuft bereits"}
    asyncio.create_task(guarded_sync())
    return {"started": True}


if STATIC_DIR.is_dir():
    app.mount("/", StaticFiles(directory=STATIC_DIR, html=True), name="static")