// Track if monitoring is active
let isTracking = false;
let trackedTabs = new Map();

// Listen for messages from popup or content script
chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
  if (message.action === 'startTracking') {
    startTracking();
    sendResponse({ status: 'started' });
  } else if (message.action === 'stopTracking') {
    stopTracking();
    sendResponse({ status: 'stopped' });
  } else if (message.action === 'getStatus') {
    sendResponse({ isTracking, tabCount: trackedTabs.size });
  } else if (message.action === 'getAllTabs') {
    getAllTabs().then(tabs => {
      sendResponse({ tabs });
    });
    return true; // Keep channel open for async response
  }
});

// Start tracking tabs
async function startTracking() {
  isTracking = true;
  console.log('Started tracking tabs');
  
  // Get all current tabs
  const tabs = await chrome.tabs.query({});
  tabs.forEach(tab => {
    if (tab.url && !tab.url.startsWith('chrome://') && !tab.url.startsWith('edge://')) {
      addTab(tab);
    }
  });
  
  // Send initial tabs to web app
  sendTabsToWebApp();
}

// Stop tracking
function stopTracking() {
  isTracking = false;
  trackedTabs.clear();
  console.log('Stopped tracking tabs');
  
  // Notify web app to clear data
  sendToWebApp({ action: 'clear' });
}

// Add or update a tab
function addTab(tab) {
  trackedTabs.set(tab.id, {
    id: tab.id,
    url: tab.url,
    title: tab.title || tab.url,
    favIconUrl: tab.favIconUrl,
    timestamp: new Date().toISOString()
  });
}

// Get all tabs
async function getAllTabs() {
  return Array.from(trackedTabs.values());
}

// Send tabs to web app
async function sendTabsToWebApp() {
  const tabs = await getAllTabs();
  sendToWebApp({
    action: 'updateTabs',
    tabs: tabs
  });
}

// Send message to web app via content script
function sendToWebApp(data) {
  chrome.tabs.query({ url: ['https://tab.caesargaming.org/*', 'http://localhost:8080/*'] }, (tabs) => {
    tabs.forEach(tab => {
      chrome.tabs.sendMessage(tab.id, data).catch(() => {
        // Ignore errors if content script not loaded
      });
    });
  });
}

// Listen for new tabs
chrome.tabs.onCreated.addListener((tab) => {
  if (isTracking && tab.url && !tab.url.startsWith('chrome://') && !tab.url.startsWith('edge://')) {
    addTab(tab);
    sendTabsToWebApp();
  }
});

// Listen for tab updates
chrome.tabs.onUpdated.addListener((tabId, changeInfo, tab) => {
  if (isTracking && changeInfo.status === 'complete' && tab.url && !tab.url.startsWith('chrome://') && !tab.url.startsWith('edge://')) {
    addTab(tab);
    sendTabsToWebApp();
  }
});

// Listen for closed tabs
chrome.tabs.onRemoved.addListener((tabId) => {
  if (isTracking && trackedTabs.has(tabId)) {
    trackedTabs.delete(tabId);
    sendTabsToWebApp();
  }
});