/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, you can obtain one at http://mozilla.org/MPL/2.0/. */

/**
 * Wait for all tabs to finish loading, then return the important
 * properties of each open tab in the current window.
 */

/* globals arguments */
const [resolve] = arguments;

window.requestIdleCallback(() => {
  const tabmail = document.getElementById("tabmail");
  const loadPromises = [];

  for (const tab of tabmail.tabInfo) {
    if (tab.mode.name != "contentTab") {
      continue;
    }
    if (!tab.browser.webProgress || tab.browser.webProgress.isLoadingDocument) {
      const promise = Promise.withResolvers();
      loadPromises.push(promise.promise);
      function listener(event) {
        if (event.target.location != "about:blank") {
          tab.browser.removeEventListener("load", listener, { capture: true });
          promise.resolve();
        }
      }
      tab.browser.addEventListener("load", listener, { capture: true });
    }
  }

  Promise.all(loadPromises).then(() => {
    resolve(
      tabmail.tabInfo.map(tab => {
        const data = { mode: tab.mode.name };
        if (tab.browser) {
          data.url = tab.browser.currentURI?.spec;
        }
        if (tab.mode.name == "contentTab") {
          // How we handle clicks on links in this tab.
          data.linkHandler = tab.browser.getAttribute("messagemanagergroup");
          // The user context (container in Firefox terms) of this tab.
          if (tab.browser.hasAttribute("usercontextid")) {
            data.userContextId = tab.browser.getAttribute("usercontextid");
          }
        }
        return data;
      })
    );
  });
});