/* Any copyright is dedicated to the Public Domain.
 * http://creativecommons.org/publicdomain/zero/1.0/ */

Services.scriptloader.loadSubScript(
  "chrome://mochitests/content/browser/toolkit/components/ml/tests/browser/head.js",
  this
);

const RELATIVE_DIR = "toolkit/components/pdfjs/test/";
const TESTROOT = "https://example.com/browser/" + RELATIVE_DIR;
const pdfUrl = TESTROOT + "file_pdfjs_test.pdf";
const altTextPref = "pdfjs.enableAltText";
const guessAltTextPref = "pdfjs.enableGuessAltText";
const browserMLPref = "browser.ml.enable";
const annotationEditorModePref = "pdfjs.annotationEditorMode";

async function setupRemoteClient() {
  const { removeMocks, remoteClients } = await createAndMockMLRemoteSettings({
    autoDownloadFromRemoteSettings: false,
  });

  return {
    remoteClients,
    async cleanup() {
      await removeMocks();
      await waitForCondition(
        () => EngineProcess.areAllEnginesTerminated(),
        "Waiting for all of the engines to be terminated.",
        100,
        200
      );
    },
  };
}

// Test that the model is loaded.
add_task(async function test() {
  let mimeService = Cc["@mozilla.org/mime;1"].getService(Ci.nsIMIMEService);
  let handlerInfo = mimeService.getFromTypeAndExtension(
    "application/pdf",
    "pdf"
  );

  // Make sure pdf.js is the default handler.
  is(
    handlerInfo.alwaysAskBeforeHandling,
    false,
    "pdf handler defaults to always-ask is false"
  );
  is(
    handlerInfo.preferredAction,
    Ci.nsIHandlerInfo.handleInternally,
    "pdf handler defaults to internal"
  );

  info("Pref action: " + handlerInfo.preferredAction);

  await BrowserTestUtils.withNewTab(
    { gBrowser, url: "about:blank" },
    async function test_alttext_load_engine(browser) {
      const { EngineProcess } = ChromeUtils.importESModule(
        "chrome://global/content/ml/EngineProcess.sys.mjs"
      );

      await SpecialPowers.pushPrefEnv({
        set: [
          [altTextPref, true],
          [browserMLPref, true],
          [guessAltTextPref, true],
          [annotationEditorModePref, 0],
        ],
      });

      const setRC = await setupRemoteClient();

      await waitForPdfJS(browser, pdfUrl);
      await enableEditor(browser, "Stamp", 1);

      const isEnabled = await SpecialPowers.spawn(browser, [], () => {
        const viewer = content.wrappedJSObject.PDFViewerApplication;
        return viewer.mlManager.isEnabledFor("altText");
      });
      ok(isEnabled, "AltText is enabled");

      await setRC.remoteClients["ml-onnx-runtime"].resolvePendingDownloads(1);
      await EngineProcess.destroyMLEngine();
      await setRC.cleanup();

      await waitForPdfJSClose(browser);
      await SpecialPowers.popPrefEnv();
    }
  );
});