/**
 * Nachgebildete TMDB-Antworten.
 *
 * Damit lässt sich der komplette Importpfad (Kopfdaten, Staffeln, Episoden,
 * Streamingdienste, Collections) prüfen, ohne einen echten Schlüssel zu
 * brauchen — und ohne bei jedem Lauf die TMDB-API zu belasten. Der Aufbau
 * entspricht dem, was TMDB tatsächlich liefert; gekürzt auf die Felder, die
 * Flimmer verwendet.
 */

export const SERIES_ID = 999001;
export const MOVIE_ID = 999002;
export const MOVIE_2_ID = 999003;
export const COLLECTION_ID = 999100;

export const seriesDetails = {
  id: SERIES_ID,
  name: "Nordlicht",
  original_name: "Nordlys",
  overview:
    "Eine Meteorologin kehrt in ihr Heimatdorf am Polarkreis zurück und stößt auf ein Wetterphänomen, das es nicht geben dürfte.",
  tagline: "Manche Lichter wollen nicht gesehen werden.",
  poster_path: "/abcdef1234567890.jpg",
  backdrop_path: "/bcdefa1234567890.jpg",
  first_air_date: "2023-03-14",
  last_air_date: "2025-05-02",
  episode_run_time: [48],
  status: "Returning Series",
  in_production: true,
  genres: [
    { id: 18, name: "Drama" },
    { id: 9648, name: "Mystery" },
  ],
  original_language: "no",
  homepage: "https://example.org/nordlicht",
  vote_average: 8.1,
  number_of_seasons: 2,
  number_of_episodes: 5,
  external_ids: { imdb_id: "tt9990010" },
  seasons: [
    {
      id: 500000,
      season_number: 0,
      name: "Specials",
      overview: "Zusätzliche Folgen außerhalb der Handlung.",
      poster_path: null,
      air_date: "2023-12-24",
      episode_count: 1,
    },
    {
      id: 500001,
      season_number: 1,
      name: "Staffel 1",
      overview: "Die Rückkehr.",
      poster_path: "/cdefab1234567890.jpg",
      air_date: "2023-03-14",
      episode_count: 3,
    },
    {
      id: 500002,
      season_number: 2,
      name: "Staffel 2",
      overview: "Der lange Winter.",
      poster_path: "/defabc1234567890.jpg",
      air_date: "2025-04-11",
      episode_count: 2,
    },
  ],
  "watch/providers": {
    results: {
      DE: {
        link: "https://www.themoviedb.org/tv/999001/watch?locale=DE",
        flatrate: [
          { provider_id: 8, provider_name: "Netflix", logo_path: "/netflix12345678.jpg" },
          { provider_id: 30, provider_name: "WOW", logo_path: "/wowlogo123456789.jpg" },
        ],
        buy: [
          {
            provider_id: 3,
            provider_name: "Google Play Movies",
            logo_path: "/googleplay123456.jpg",
          },
        ],
      },
      AT: {
        flatrate: [{ provider_id: 8, provider_name: "Netflix", logo_path: "/netflix12345678.jpg" }],
      },
    },
  },
};

export const seasons: Record<number, unknown> = {
  0: {
    id: 500000,
    season_number: 0,
    name: "Specials",
    air_date: "2023-12-24",
    episodes: [
      {
        id: 600000,
        season_number: 0,
        episode_number: 1,
        name: "Weihnachten am Fjord",
        overview: "Eine Folge außer der Reihe.",
        still_path: "/still000000000001.jpg",
        air_date: "2023-12-24",
        runtime: 30,
      },
    ],
  },
  1: {
    id: 500001,
    season_number: 1,
    name: "Staffel 1",
    air_date: "2023-03-14",
    episodes: [
      {
        id: 600001,
        season_number: 1,
        episode_number: 1,
        name: "Ankunft",
        overview: "Ida steigt in Bodø aus dem Zug.",
        still_path: "/still000000000002.jpg",
        air_date: "2023-03-14",
        runtime: 52,
      },
      {
        id: 600002,
        season_number: 1,
        episode_number: 2,
        name: "Der Messwert",
        overview: "Ein Gerät zeigt etwas Unmögliches an.",
        still_path: null,
        air_date: "2023-03-21",
        runtime: 47,
      },
      {
        id: 600003,
        season_number: 1,
        episode_number: 3,
        name: "Polarnacht",
        overview: "Die Sonne bleibt weg — länger als sie darf.",
        still_path: null,
        air_date: "2023-03-28",
        // Ohne Laufzeit: muss auf episode_run_time zurückfallen.
        runtime: null,
      },
    ],
  },
  2: {
    id: 500002,
    season_number: 2,
    name: "Staffel 2",
    air_date: "2025-04-11",
    episodes: [
      {
        id: 600004,
        season_number: 2,
        episode_number: 1,
        name: "Rückkehr des Lichts",
        overview: null,
        still_path: null,
        air_date: "2025-04-11",
        runtime: 50,
      },
      {
        id: 600005,
        season_number: 2,
        episode_number: 2,
        name: "Der zweite Winter",
        overview: null,
        still_path: null,
        // Noch nicht ausgestrahlt — kommt in Etappe 5 im Kalender vor.
        air_date: "2099-01-08",
        runtime: 50,
      },
    ],
  },
};

export const movieDetails = {
  id: MOVIE_ID,
  imdb_id: "tt9990020",
  title: "Die Stille zwischen den Bildern",
  original_title: "The Silence Between Frames",
  overview: "Ein Filmvorführer entdeckt in einer alten Rolle Bilder, die dort nicht sein können.",
  tagline: "24 Bilder pro Sekunde. Eins davon lügt.",
  poster_path: "/movie0001234567890.jpg",
  backdrop_path: "/movieback01234567.jpg",
  release_date: "2024-10-17",
  runtime: 118,
  status: "Released",
  genres: [
    { id: 27, name: "Horror" },
    { id: 53, name: "Thriller" },
  ],
  original_language: "en",
  homepage: null,
  vote_average: 7.4,
  belongs_to_collection: {
    id: COLLECTION_ID,
    name: "Vorführer-Reihe",
    poster_path: "/collection00123456.jpg",
  },
  "watch/providers": {
    results: {
      DE: {
        flatrate: [
          { provider_id: 337, provider_name: "Disney Plus", logo_path: "/disney1234567890.jpg" },
        ],
        rent: [
          { provider_id: 3, provider_name: "Google Play Movies", logo_path: "/googleplay123456.jpg" },
        ],
      },
    },
  },
};

export const movie2Details = {
  ...movieDetails,
  id: MOVIE_2_ID,
  imdb_id: "tt9990030",
  title: "Die Stille zwischen den Bildern II",
  original_title: "The Silence Between Frames II",
  release_date: "2026-02-06",
  runtime: 126,
  poster_path: "/movie0002234567890.jpg",
  "watch/providers": { results: {} },
};

export const collectionDetails = {
  id: COLLECTION_ID,
  name: "Vorführer-Reihe",
  overview: "Zwei Filme über alte Projektoren und das, was sie zeigen.",
  poster_path: "/collection00123456.jpg",
  backdrop_path: null,
  parts: [
    // Absichtlich in falscher Reihenfolge — der Import muss nach Datum sortieren.
    { id: MOVIE_2_ID, title: movie2Details.title, release_date: "2026-02-06" },
    { id: MOVIE_ID, title: movieDetails.title, release_date: "2024-10-17" },
  ],
};

/**
 * Ersetzt `fetch` durch eine Fassung, die aus den Fixtures antwortet.
 * Liefert eine Funktion zum Zurücksetzen sowie die Liste der Aufrufe.
 */
export function installTmdbStub() {
  const original = globalThis.fetch;
  const calls: string[] = [];

  globalThis.fetch = (async (input: string | URL | Request) => {
    const url = new URL(typeof input === "string" ? input : input.toString());
    calls.push(url.pathname);

    const json = (body: unknown) =>
      new Response(JSON.stringify(body), {
        status: 200,
        headers: { "content-type": "application/json" },
      });

    const path = url.pathname;

    if (path === `/3/tv/${SERIES_ID}`) return json(seriesDetails);
    const seasonMatch = path.match(new RegExp(`^/3/tv/${SERIES_ID}/season/(\\d+)$`));
    if (seasonMatch?.[1] !== undefined) {
      const number = Number(seasonMatch[1]);
      const season = seasons[number];
      return season
        ? json(season)
        : new Response(JSON.stringify({ status_message: "Not found" }), { status: 404 });
    }
    if (path === `/3/movie/${MOVIE_ID}`) return json(movieDetails);
    if (path === `/3/movie/${MOVIE_2_ID}`) return json(movie2Details);
    if (path === `/3/collection/${COLLECTION_ID}`) return json(collectionDetails);

    return new Response(JSON.stringify({ status_message: `Kein Fixture für ${path}` }), {
      status: 404,
      headers: { "content-type": "application/json" },
    });
  }) as typeof fetch;

  return {
    calls,
    restore() {
      globalThis.fetch = original;
    },
  };
}