background.js

// VISION – Background Service Worker v2.2

// On install → set defaults
chrome.runtime.onInstalled.addListener(() => {
  chrome.storage.local.set({
    enabled: true,
    fixedCount: 0,
    totalFixed: 0,
    theme: 'night'
  });
});

// On startup (browser restart) → ensure enabled is always true by default
// This fires when Chrome starts and the extension wakes up
chrome.runtime.onStartup.addListener(() => {
  chrome.storage.local.get(['enabled'], data => {
    // If key is missing (first install before onInstalled fires), default to true
    if (data.enabled === undefined) {
      chrome.storage.local.set({ enabled: true, theme: 'night' });
    }
  });
});

// Badge update on tab switch
chrome.tabs.onActivated.addListener(async ({ tabId }) => {
  try {
    const data = await chrome.storage.local.get(['enabled']);
    const on = data.enabled !== false;
    chrome.action.setBadgeBackgroundColor({ color: on ? '#c0c0c0' : '#333' });
    chrome.action.setBadgeText({ tabId, text: on ? 'ON' : '' });
  } catch(e) {}
});

// Re-run on tab navigation (handles SPAs like Quora)
chrome.tabs.onUpdated.addListener((tabId, changeInfo, tab) => {
  if (changeInfo.status !== 'complete') return;
  if (!tab.url) return;
  if (tab.url.startsWith('chrome://') || tab.url.startsWith('chrome-extension://') ||
      tab.url.startsWith('edge://') || tab.url.startsWith('about:')) return;

  chrome.storage.local.get(['enabled'], data => {
    if (data.enabled === false) return;
    // Small delay to let page JS settle before we scan
    setTimeout(() => {
      chrome.tabs.sendMessage(tabId, { action: 'runNow' }, () => {
        if (chrome.runtime.lastError) {} // content script may not be ready yet — ok
      });
    }, 800);
  });
});