const HIGHLIGHT_JS = "vendor/highlightjs/highlight.min.js";

chrome.tabs.onUpdated.addListener(async (tabId, changeInfo, tab) => {
  if (changeInfo.status !== "complete" || !tab?.id) return;

  try {
    const { autoFormat } = await chrome.storage.sync.get({ autoFormat: false });
    if (!autoFormat) return;

    // Haben wir Host-Permissions?
    const have = await chrome.permissions.contains({ origins: ["<all_urls>"] });
    if (!have) return;

    // Nur im aktiven Tab (du wolltest Beschränkung auf aktiven Tab für Auto)
    const active = tab.active === true;
    if (!active) return;

    console.log("[bg] auto inject on updated tab", tabId, tab.url);
    await chrome.scripting.executeScript({
      target: { tabId },
      files: [HIGHLIGHT_JS, "format.js", "content.js"]
    });
  } catch (e) {
    console.error("[bg] onUpdated error", e);
  }
});

chrome.runtime.onInstalled.addListener(() => {
  console.log("[bg] onInstalled");
  chrome.contextMenus.create({
    id: "manual-format",
    title: "JSON jetzt formatieren",
    contexts: ["page"]
  });
  chrome.contextMenus.create({
    id: "open-options",
    title: "Einstellungen",
    contexts: ["action"]
  });
});

async function inject(tabId) {
  try {
    console.log("[bg] injecting into tab", tabId);
    await chrome.scripting.executeScript({
      target: { tabId },
      func: () => {
        window.__forceManualFormat = true;
      }
    });
    await chrome.scripting.executeScript({
      target: { tabId },
      files: [HIGHLIGHT_JS, "format.js", "content.js"]
    });
    console.log("[bg] injection done");
  } catch (e) {
    console.error("[bg] injection error", e);
  }
}

chrome.contextMenus.onClicked.addListener((info, tab) => {
  if (info.menuItemId === "open-options") {
    chrome.runtime.openOptionsPage();
    return;
  }
  if (info.menuItemId === "manual-format" && tab?.id) {
    inject(tab.id);
  }
});

chrome.action.onClicked.addListener((tab) => {
  if (tab?.id) inject(tab.id);
});