"""Freie Filmsuche über TMDB.

Der Katalog deckt nur Netflix und den Kanon ab. Für den Filmabend braucht
es auch Titel, die nirgends davon stehen — die kommen live von TMDB und
landen nicht in der Datenbank.
"""

import httpx

from .config import LANGUAGE, TMDB_BASE, TMDB_TOKEN
from .tmdb import DETAIL_PARAMS, pick_backdrops, pick_overview, pick_trailer

HEADERS = {"Authorization": f"Bearer {TMDB_TOKEN}", "accept": "application/json"}


def client():
    return httpx.AsyncClient(base_url=TMDB_BASE, headers=HEADERS, timeout=30.0)


def as_result(item):
    release = item.get("release_date") or ""
    return {
        "id": item["id"],
        "title": item.get("title") or item.get("original_title") or "Ohne Titel",
        "original_title": item.get("original_title"),
        "year": int(release[:4]) if release[:4].isdigit() else None,
        "release_date": release or None,
        "overview": item.get("overview") or "",
        "poster_path": item.get("poster_path"),
        "vote_average": item.get("vote_average"),
        "vote_count": item.get("vote_count"),
    }


async def search(query, limit=24):
    async with client() as http:
        resp = await http.get(
            "/search/movie",
            params={"query": query, "language": LANGUAGE, "include_adult": "false"},
        )
        resp.raise_for_status()
        results = resp.json().get("results", [])

    # Ohne Poster taugt eine Kachel nichts, und Namenlose sind fast immer
    # Dubletten oder Making-ofs
    usable = [r for r in results if r.get("poster_path")]
    usable.sort(key=lambda r: -(r.get("popularity") or 0))
    return [as_result(r) for r in usable[:limit]]


async def detail(movie_id):
    """Vollbild-Daten für einen Treffer, der nicht im Katalog steht."""
    async with client() as http:
        resp = await http.get(f"/movie/{movie_id}", params=DETAIL_PARAMS)
        resp.raise_for_status()
        data = resp.json()

    release = data.get("release_date") or ""
    collection = data.get("belongs_to_collection") or {}
    return {
        "id": data["id"],
        "title": data.get("title") or data.get("original_title") or "Ohne Titel",
        "original_title": data.get("original_title"),
        "release_date": release or None,
        "year": int(release[:4]) if release[:4].isdigit() else None,
        "overview": pick_overview(data),
        "teaser": "",
        "poster_path": data.get("poster_path"),
        "backdrop_path": data.get("backdrop_path"),
        "vote_average": data.get("vote_average"),
        "vote_count": data.get("vote_count"),
        "runtime": data.get("runtime"),
        "genres": [g["name"] for g in data.get("genres", [])],
        "images": pick_backdrops(data)[:12],
        "trailer_key": pick_trailer(data),
        "imdb_id": data.get("imdb_id"),
        "netflix_id": None,
        "netflix_url": None,
        "on_netflix": 0,
        "canon_group": None,
        "canon_pos": None,
        "collection_id": collection.get("id"),
        "collection_name": collection.get("name"),
    }