// Background service worker
chrome.runtime.onInstalled.addListener(() => {
  console.log('SDB Audio Extractor extension installed');

  // Create context menu
  chrome.contextMenus.create({
    id: 'extractAudio',
    title: 'Extract Audio with SDB',
    contexts: ['page'],
    documentUrlPatterns: ['https://www.youtube.com/watch*']
  });
});

// Function to clean YouTube URL
function getCleanVideoUrl(url) {
  const match = url.match(/[?&]v=([^&]+)/);
  if (match) {
    return `https://www.youtube.com/watch?v=${match[1]}`;
  }
  return url; // Return original if we can't extract video ID
}

// Handle context menu clicks
chrome.contextMenus.onClicked.addListener(async (info, tab) => {
  if (info.menuItemId === 'extractAudio') {
    // Get API configuration
    const result = await chrome.storage.sync.get(['apiToken', 'apiBaseUrl']);
    const apiToken = result.apiToken;
    const apiBaseUrl = result.apiBaseUrl || 'http://goyave';

    if (!apiToken) {
      // Open options page if no token configured
      chrome.runtime.openOptionsPage();
      return;
    }

    // Get video information from content script for notification
    let videoTitle = null;
    try {
      const videoInfo = await chrome.tabs.sendMessage(tab.id, { action: 'getVideoInfo' });
      if (videoInfo && videoInfo.title) {
        videoTitle = videoInfo.title;
      }
    } catch (error) {
      console.log('Could not get video info from content script:', error);
    }

    // Send extraction request
    try {
      // Use clean URL for the API request
      const cleanUrl = getCleanVideoUrl(tab.url);

      const response = await fetch(`${apiBaseUrl}/api/v1/extractions/?url=${encodeURIComponent(cleanUrl)}`, {
        method: 'POST',
        headers: {
          'API-TOKEN': apiToken
        }
      });

      if (response.ok) {
        // Show success notification
        const notificationMessage = videoTitle
          ? `Audio extraction started for "${videoTitle}"!`
          : 'Audio extraction started successfully!';

        chrome.notifications.create({
          type: 'basic',
          iconUrl: 'icon48.png',
          title: 'SDB Audio Extractor',
          message: notificationMessage
        });
      } else {
        throw new Error(`HTTP ${response.status}`);
      }
    } catch (error) {
      console.error('Extraction error:', error);
      let errorMessage = 'Unknown error occurred';

      if (error.message) {
        errorMessage = error.message;
      } else if (error.name === 'TypeError' && error.message.includes('fetch')) {
        errorMessage = 'Cannot connect to API server';
      } else if (typeof error === 'string') {
        errorMessage = error;
      }

      chrome.notifications.create({
        type: 'basic',
        iconUrl: 'icon48.png',
        title: 'SDB Audio Extractor',
        message: `Failed to extract audio: ${errorMessage}`
      });
    }
  }
});

// Handle messages from content scripts or popup
chrome.runtime.onMessage.addListener((request, _sender, sendResponse) => {
  console.log('Background received message:', request);

  if (request.action === 'extractAudio') {
    // Handle extraction request from content script if needed
    handleExtraction(request.url).then(sendResponse);
    return true; // Keep message channel open for async response
  }
});

async function handleExtraction(url) {
  try {
    const result = await chrome.storage.sync.get(['apiToken', 'apiBaseUrl']);
    const apiToken = result.apiToken;
    const apiBaseUrl = result.apiBaseUrl || 'http://goyave';

    if (!apiToken) {
      throw new Error('API token not configured');
    }

    // Use clean URL for the API request
    const cleanUrl = getCleanVideoUrl(url);

    const response = await fetch(`${apiBaseUrl}/api/v1/extractions/?url=${encodeURIComponent(cleanUrl)}`, {
      method: 'POST',
      headers: {
        'API-TOKEN': apiToken
      }
    });

    if (!response.ok) {
      let errorMessage = `HTTP ${response.status}`;
      try {
        const errorData = await response.json();
        if (errorData.detail) {
          errorMessage = errorData.detail;
        } else if (errorData.message) {
          errorMessage = errorData.message;
        } else if (typeof errorData === 'string') {
          errorMessage = errorData;
        }
      } catch (e) {
        errorMessage = response.statusText || errorMessage;
      }
      throw new Error(errorMessage);
    }

    return await response.json();
  } catch (error) {
    console.error('Extraction error:', error);
    throw error;
  }
}