console.log("Preload script starting...");
try {
  const { contextBridge } = require('electron');
  const fs = require('fs');
  const path = require('path');
  console.log("Node modules loaded successfully.");
  
  // Location to store the token (adjust the location as needed)
  const tokenFile = path.join(__dirname, 'accessToken.json');
  console.log("Token file path:", tokenFile);

  function loadToken() {
      try {
          const data = fs.readFileSync(tokenFile, 'utf8');
          const parsed = JSON.parse(data);
          console.log("Token loaded:", parsed.token);
          return parsed.token;
      } catch (error) {
          console.warn("loadToken error:", error.message);
          return null;
      }
  }

  function saveToken(token) {
      try {
          fs.writeFileSync(tokenFile, JSON.stringify({ token }), 'utf8');
          console.log("Token saved:", token);
      } catch (error) {
          console.error("saveToken error:", error.message);
      }
  }

  let accessToken = loadToken();

  // Updated fetchWithAuth: if JSON returns "Invalid or expired token" then
  // dispatch a custom event that the renderer will catch.
  function fetchWithAuth(url, options = {}) {
      options.headers = options.headers || {};
      if (accessToken) {
          options.headers['Authorization'] = `Bearer ${accessToken}`;
      }
      return fetch(url, options)
        .then(response => response.json())
        .then(data => {
          if (data.detail && data.detail === "Invalid or expired token") {
            console.error("API reports expired token.");
            accessToken = null;
            // Dispatch custom event on the window so that the renderer can show the login overlay.
            window.dispatchEvent(new CustomEvent("tokenExpired", { detail: data.detail }));
          }
          return data;
        });
  }

  // Now update getStreamUrl and getEpisodeStreamUrl to use fetchWithAuth.
  contextBridge.exposeInMainWorld('api', {
    // Movies API calls
    getMovies: () => fetchWithAuth('http://bbrunson.com:8495/movies'),
    getMovieDetails: (id) => fetchWithAuth(`http://bbrunson.com:8495/movies/${id}`),
    getStream: (id) => `http://bbrunson.com:8495/stream/${id}`,
    // TV Shows API calls
    getShows: () => fetchWithAuth('http://bbrunson.com:8495/shows'),
    getShowDetails: (showId) => fetchWithAuth(`http://bbrunson.com:8495/shows/${showId}`),
    getShowSeasons: (showId) => fetchWithAuth(`http://bbrunson.com:8495/shows/${showId}/seasons`),
    getSeasonEpisodes: (showId, season) =>
      fetchWithAuth(`http://bbrunson.com:8495/shows/${showId}/seasons/${season}/episodes`),
    getEpisodeStream: (episodeId) => `http://bbrunson.com:8495/stream_episode/${episodeId}`,
    getSubtitles: (id) => `http://bbrunson.com:8495/subtitles/${id}`,
    
    // New: In Progress API call
    getInProgress: () => fetchWithAuth('http://bbrunson.com:8495/in_progress'),
    
    // New: Get Episode Details API call
    getEpisodeDetails: (id) => fetchWithAuth(`http://bbrunson.com:8495/episodes/${id}`),
    
    // New: Use the /episodes/{episode_id}/show endpoint to fetch TV show details for an episode
    getShowByEpisode: (episodeId) => fetchWithAuth(`http://bbrunson.com:8495/episodes/${episodeId}/show`),
    
    // Authentication functions
    login: (username, password) => {
      return fetch('http://bbrunson.com:8495/login', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ username, password })
      })
      .then(r => r.json())
      .then(data => {
        if (data.access_token) {
          accessToken = data.access_token;
          saveToken(accessToken);
        }
        return data;
      });
    },
    register: (username, password) => {
      return fetch('http://bbrunson.com:8495/register', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ username, password })
      })
      .then(r => r.json());
    },
    getToken: () => accessToken,
    scanForNewFiles: () => fetchWithAuth('http://bbrunson.com:8495/scan', { method: 'POST' }),
    getSessionDetails: (sessionId) => fetchWithAuth(`http://bbrunson.com:8495/sessions/${sessionId}`),

    // new progress APIs
    saveProgress: (mediaType, mediaId, lastPosition) =>
      fetchWithAuth(`http://bbrunson.com:8495/save_progress/${mediaType}/${mediaId}`, {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ last_position: lastPosition })
      }),
    getProgress: (mediaType, mediaId) =>
      fetchWithAuth(`http://bbrunson.com:8495/get_progress/${mediaType}/${mediaId}`)
  });

  console.log("Preload script finished register API.");
} catch (error) {
  console.error('Error in preload.js:', error);
}