/* eslint no-unused-vars: ["error", {vars: "local", args: "none"}] */

const { PermissionTestUtils } = ChromeUtils.import(
  "resource://testing-common/PermissionTestUtils.jsm"
);
const { PromptTestUtils } = ChromeUtils.import(
  "resource://testing-common/PromptTestUtils.jsm"
);

const RELATIVE_DIR = "toolkit/mozapps/extensions/test/xpinstall/";

const TESTROOT = "http://example.com/browser/" + RELATIVE_DIR;
const TESTROOT2 = "http://example.org/browser/" + RELATIVE_DIR;
const PROMPT_URL = "chrome://global/content/commonDialog.xhtml";
const ADDONS_URL = "chrome://mozapps/content/extensions/aboutaddons.html";
const PREF_LOGGING_ENABLED = "extensions.logging.enabled";
const PREF_INSTALL_REQUIREBUILTINCERTS =
  "extensions.install.requireBuiltInCerts";
const PREF_INSTALL_REQUIRESECUREORIGIN =
  "extensions.install.requireSecureOrigin";
const CHROME_NAME = "mochikit";

function getChromeRoot(path) {
  if (path === undefined) {
    return "chrome://" + CHROME_NAME + "/content/browser/" + RELATIVE_DIR;
  }
  return getRootDirectory(path);
}

function extractChromeRoot(path) {
  var chromeRootPath = getChromeRoot(path);
  var jar = getJar(chromeRootPath);
  if (jar) {
    var tmpdir = extractJarToTmp(jar);
    return "file://" + tmpdir.path + "/";
  }
  return chromeRootPath;
}

function setInstallTriggerPrefs() {
  Services.prefs.setBoolPref("extensions.InstallTrigger.enabled", true);
  Services.prefs.setBoolPref("extensions.InstallTriggerImpl.enabled", true);
  // Relax the user input requirements while running tests that call this test helper.
  Services.prefs.setBoolPref("xpinstall.userActivation.required", false);
  registerCleanupFunction(clearInstallTriggerPrefs);
}

function clearInstallTriggerPrefs() {
  Services.prefs.clearUserPref("extensions.InstallTrigger.enabled");
  Services.prefs.clearUserPref("extensions.InstallTriggerImpl.enabled");
  Services.prefs.clearUserPref("xpinstall.userActivation.required");
}

/**
 * This is a test harness designed to handle responding to UI during the process
 * of installing an XPI. A test can set callbacks to hear about specific parts
 * of the sequence.
 * Before use setup must be called and finish must be called afterwards.
 */
var Harness = {
  // If set then the callback is called when an install is attempted and
  // software installation is disabled.
  installDisabledCallback: null,
  // If set then the callback is called when an install is attempted and
  // then canceled.
  installCancelledCallback: null,
  // If set then the callback will be called when an install's origin is blocked.
  installOriginBlockedCallback: null,
  // If set then the callback will be called when an install is blocked by the
  // whitelist. The callback should return true to continue with the install
  // anyway.
  installBlockedCallback: null,
  // If set will be called in the event of authentication being needed to get
  // the xpi. Should return a 2 element array of username and password, or
  // null to not authenticate.
  authenticationCallback: null,
  // If set this will be called to allow checking the contents of the xpinstall
  // confirmation dialog. The callback should return true to continue the install.
  installConfirmCallback: null,
  // If set will be called when downloading of an item has begun.
  downloadStartedCallback: null,
  // If set will be called during the download of an item.
  downloadProgressCallback: null,
  // If set will be called when an xpi fails to download.
  downloadFailedCallback: null,
  // If set will be called when an xpi download is cancelled.
  downloadCancelledCallback: null,
  // If set will be called when downloading of an item has ended.
  downloadEndedCallback: null,
  // If set will be called when installation by the extension manager of an xpi
  // item starts
  installStartedCallback: null,
  // If set will be called when an xpi fails to install.
  installFailedCallback: null,
  // If set will be called when each xpi item to be installed completes
  // installation.
  installEndedCallback: null,
  // If set will be called when all triggered items are installed or the install
  // is canceled.
  installsCompletedCallback: null,
  // If set the harness will wait for this DOM event before calling
  // installsCompletedCallback
  finalContentEvent: null,

  waitingForEvent: false,
  pendingCount: null,
  installCount: null,
  runningInstalls: null,

  waitingForFinish: false,

  // A unique value to return from the installConfirmCallback to indicate that
  // the install UI shouldn't be closed automatically
  leaveOpen: {},

  // Setup and tear down functions
  setup(win = window) {
    if (!this.waitingForFinish) {
      waitForExplicitFinish();
      this.waitingForFinish = true;

      Services.prefs.setBoolPref(PREF_INSTALL_REQUIRESECUREORIGIN, false);
      Services.prefs.setBoolPref(PREF_LOGGING_ENABLED, true);
      Services.prefs.setBoolPref(
        "network.cookieJarSettings.unblocked_for_testing",
        true
      );

      Services.obs.addObserver(this, "addon-install-started");
      Services.obs.addObserver(this, "addon-install-disabled");
      Services.obs.addObserver(this, "addon-install-origin-blocked");
      Services.obs.addObserver(this, "addon-install-blocked");
      Services.obs.addObserver(this, "addon-install-failed");
      Services.obs.addObserver(this, "addon-install-complete");

      // For browser_auth tests which trigger auth dialogs.
      Services.obs.addObserver(this, "tabmodal-dialog-loaded");
      Services.obs.addObserver(this, "common-dialog-loaded");

      this._boundWin = Cu.getWeakReference(win); // need this so our addon manager listener knows which window to use.
      AddonManager.addInstallListener(this);
      AddonManager.addAddonListener(this);

      win.addEventListener("popupshown", this);
      win.PanelUI.notificationPanel.addEventListener("popupshown", this);

      var self = this;
      registerCleanupFunction(async function() {
        Services.prefs.clearUserPref(PREF_LOGGING_ENABLED);
        Services.prefs.clearUserPref(PREF_INSTALL_REQUIRESECUREORIGIN);
        Services.prefs.clearUserPref(
          "network.cookieJarSettings.unblocked_for_testing"
        );

        Services.obs.removeObserver(self, "addon-install-started");
        Services.obs.removeObserver(self, "addon-install-disabled");
        Services.obs.removeObserver(self, "addon-install-origin-blocked");
        Services.obs.removeObserver(self, "addon-install-blocked");
        Services.obs.removeObserver(self, "addon-install-failed");
        Services.obs.removeObserver(self, "addon-install-complete");

        Services.obs.removeObserver(self, "tabmodal-dialog-loaded");
        Services.obs.removeObserver(self, "common-dialog-loaded");

        AddonManager.removeInstallListener(self);
        AddonManager.removeAddonListener(self);

        win.removeEventListener("popupshown", self);
        win.PanelUI.notificationPanel.removeEventListener("popupshown", self);
        win = null;

        let aInstalls = await AddonManager.getAllInstalls();
        is(
          aInstalls.length,
          0,
          "Should be no active installs at the end of the test"
        );
        await Promise.all(
          aInstalls.map(async function(aInstall) {
            info(
              "Install for " +
                aInstall.sourceURI +
                " is in state " +
                aInstall.state
            );
            if (aInstall.state == AddonManager.STATE_INSTALLED) {
              await aInstall.addon.uninstall();
            } else {
              aInstall.cancel();
            }
          })
        );
      });
    }

    this.installCount = 0;
    this.pendingCount = 0;
    this.runningInstalls = [];
  },

  finish(win = window) {
    // Some tests using this harness somehow finish leaving
    // the addon-installed panel open.  hiding here addresses
    // that which fixes the rest of the tests.  Since no test
    // here cares about this panel, we just need it to close.
    win.PanelUI.notificationPanel.hidePopup();
    win.AppMenuNotifications.removeNotification("addon-installed");
    delete this._boundWin;
    finish();
  },

  endTest() {
    let callback = this.installsCompletedCallback;
    let count = this.installCount;

    is(this.runningInstalls.length, 0, "Should be no running installs left");
    this.runningInstalls.forEach(function(aInstall) {
      info(
        "Install for " + aInstall.sourceURI + " is in state " + aInstall.state
      );
    });

    this.installOriginBlockedCallback = null;
    this.installBlockedCallback = null;
    this.authenticationCallback = null;
    this.installConfirmCallback = null;
    this.downloadStartedCallback = null;
    this.downloadProgressCallback = null;
    this.downloadCancelledCallback = null;
    this.downloadFailedCallback = null;
    this.downloadEndedCallback = null;
    this.installStartedCallback = null;
    this.installFailedCallback = null;
    this.installEndedCallback = null;
    this.installsCompletedCallback = null;
    this.runningInstalls = null;

    if (callback) {
      executeSoon(() => callback(count));
    }
  },

  promptReady(dialog) {
    let promptType = dialog.args.promptType;

    switch (promptType) {
      case "alert":
      case "alertCheck":
      case "confirmCheck":
      case "confirm":
      case "confirmEx":
        PromptTestUtils.handlePrompt(dialog, { buttonNumClick: 0 });
        break;
      case "promptUserAndPass":
        // This is a login dialog, hopefully an authentication prompt
        // for the xpi.
        if (this.authenticationCallback) {
          var auth = this.authenticationCallback();
          if (auth && auth.length == 2) {
            PromptTestUtils.handlePrompt(dialog, {
              loginInput: auth[0],
              passwordInput: auth[1],
              buttonNumClick: 0,
            });
          } else {
            PromptTestUtils.handlePrompt(dialog, { buttonNumClick: 1 });
          }
        } else {
          PromptTestUtils.handlePrompt(dialog, { buttonNumClick: 1 });
        }
        break;
      default:
        ok(false, "prompt type " + promptType + " not handled in test.");
        break;
    }
  },

  popupReady(panel) {
    if (this.installBlockedCallback) {
      ok(false, "Should have been blocked by the whitelist");
    }
    this.pendingCount++;

    // If there is a confirm callback then its return status determines whether
    // to install the items or not. If not the test is over.
    let result = true;
    if (this.installConfirmCallback) {
      result = this.installConfirmCallback(panel);
      if (result === this.leaveOpen) {
        return;
      }
    }

    if (!result) {
      panel.secondaryButton.click();
    } else {
      panel.button.click();
    }
  },

  handleEvent(event) {
    if (event.type === "popupshown") {
      if (event.target == event.view.PanelUI.notificationPanel) {
        event.view.PanelUI.notificationPanel.hidePopup();
      } else if (event.target.firstElementChild) {
        let popupId = event.target.firstElementChild.getAttribute("popupid");
        if (popupId === "addon-webext-permissions") {
          this.popupReady(event.target.firstElementChild);
        } else if (popupId === "addon-install-failed") {
          event.target.firstElementChild.button.click();
        }
      }
    }
  },

  // Install blocked handling

  installDisabled(installInfo) {
    ok(
      !!this.installDisabledCallback,
      "Installation shouldn't have been disabled"
    );
    if (this.installDisabledCallback) {
      this.installDisabledCallback(installInfo);
    }
    this.expectingCancelled = true;
    this.expectingCancelled = false;
    this.endTest();
  },

  installCancelled(installInfo) {
    if (this.expectingCancelled) {
      return;
    }

    ok(
      !!this.installCancelledCallback,
      "Installation shouldn't have been cancelled"
    );
    if (this.installCancelledCallback) {
      this.installCancelledCallback(installInfo);
    }
    this.endTest();
  },

  installOriginBlocked(installInfo) {
    ok(!!this.installOriginBlockedCallback, "Shouldn't have been blocked");
    if (this.installOriginBlockedCallback) {
      this.installOriginBlockedCallback(installInfo);
    }
    this.endTest();
  },

  installBlocked(installInfo) {
    ok(
      !!this.installBlockedCallback,
      "Shouldn't have been blocked by the whitelist"
    );
    if (
      this.installBlockedCallback &&
      this.installBlockedCallback(installInfo)
    ) {
      this.installBlockedCallback = null;
      installInfo.install();
    } else {
      this.expectingCancelled = true;
      installInfo.installs.forEach(function(install) {
        install.cancel();
      });
      this.expectingCancelled = false;
      this.endTest();
    }
  },

  // Addon Install Listener

  onNewInstall(install) {
    this.runningInstalls.push(install);

    if (this.finalContentEvent && !this.waitingForEvent) {
      this.waitingForEvent = true;
      info("Waiting for " + this.finalContentEvent);
      BrowserTestUtils.waitForContentEvent(
        this._boundWin.get().gBrowser.selectedBrowser,
        this.finalContentEvent,
        true,
        null,
        true
      ).then(() => {
        info("Saw " + this.finalContentEvent + "," + this.waitingForEvent);
        this.waitingForEvent = false;
        if (this.pendingCount == 0) {
          this.endTest();
        }
      });
    }
  },

  onDownloadStarted(install) {
    this.pendingCount++;
    if (this.downloadStartedCallback) {
      this.downloadStartedCallback(install);
    }
  },

  onDownloadProgress(install) {
    if (this.downloadProgressCallback) {
      this.downloadProgressCallback(install);
    }
  },

  onDownloadEnded(install) {
    if (this.downloadEndedCallback) {
      this.downloadEndedCallback(install);
    }
  },

  onDownloadCancelled(install) {
    isnot(
      this.runningInstalls.indexOf(install),
      -1,
      "Should only see cancelations for started installs"
    );
    this.runningInstalls.splice(this.runningInstalls.indexOf(install), 1);

    if (
      this.downloadCancelledCallback &&
      this.downloadCancelledCallback(install) === false
    ) {
      return;
    }
    this.checkTestEnded();
  },

  onDownloadFailed(install) {
    if (this.downloadFailedCallback) {
      this.downloadFailedCallback(install);
    }
    this.checkTestEnded();
  },

  onInstallStarted(install) {
    if (this.installStartedCallback) {
      this.installStartedCallback(install);
    }
  },

  async onInstallEnded(install, addon) {
    this.installCount++;
    if (this.installEndedCallback) {
      await this.installEndedCallback(install, addon);
    }
    this.checkTestEnded();
  },

  onInstallFailed(install) {
    if (this.installFailedCallback) {
      this.installFailedCallback(install);
    }
    this.checkTestEnded();
  },

  onUninstalled(addon) {
    let idx = this.runningInstalls.findIndex(install => install.addon == addon);
    if (idx != -1) {
      this.runningInstalls.splice(idx, 1);
      this.checkTestEnded();
    }
  },

  onInstallCancelled(install) {
    // This is ugly.  We have a bunch of tests that cancel installs
    // but don't expect this event to be raised.
    // For at least one test (browser_whitelist3.js), we used to generate
    // onDownloadCancelled when the user cancelled the installation at the
    // confirmation prompt.  We're now generating onInstallCancelled instead
    // of onDownloadCancelled but making this code unconditional breaks a
    // bunch of other tests.  Ugh.
    let idx = this.runningInstalls.indexOf(install);
    if (idx != -1) {
      this.runningInstalls.splice(this.runningInstalls.indexOf(install), 1);
      this.checkTestEnded();
    }
  },

  checkTestEnded() {
    if (--this.pendingCount == 0 && !this.waitingForEvent) {
      this.endTest();
    }
  },

  // nsIObserver

  observe(subject, topic, data) {
    var installInfo = subject.wrappedJSObject;
    switch (topic) {
      case "addon-install-started":
        is(
          this.runningInstalls.length,
          installInfo.installs.length,
          "Should have seen the expected number of installs started"
        );
        break;
      case "addon-install-disabled":
        this.installDisabled(installInfo);
        break;
      case "addon-install-cancelled":
        this.installCancelled(installInfo);
        break;
      case "addon-install-origin-blocked":
        this.installOriginBlocked(installInfo);
        break;
      case "addon-install-blocked":
        this.installBlocked(installInfo);
        break;
      case "addon-install-failed":
        installInfo.installs.forEach(function(aInstall) {
          isnot(
            this.runningInstalls.indexOf(aInstall),
            -1,
            "Should only see failures for started installs"
          );

          ok(
            aInstall.error != 0 || aInstall.addon.appDisabled,
            "Failed installs should have an error or be appDisabled"
          );

          this.runningInstalls.splice(
            this.runningInstalls.indexOf(aInstall),
            1
          );
        }, this);
        break;
      case "addon-install-complete":
        installInfo.installs.forEach(function(aInstall) {
          isnot(
            this.runningInstalls.indexOf(aInstall),
            -1,
            "Should only see completed events for started installs"
          );

          is(aInstall.error, 0, "Completed installs should have no error");
          ok(
            !aInstall.appDisabled,
            "Completed installs should not be appDisabled"
          );

          // Complete installs are either in the INSTALLED or CANCELLED state
          // since the test may cancel installs the moment they complete.
          ok(
            aInstall.state == AddonManager.STATE_INSTALLED ||
              aInstall.state == AddonManager.STATE_CANCELLED,
            "Completed installs should be in the right state"
          );

          this.runningInstalls.splice(
            this.runningInstalls.indexOf(aInstall),
            1
          );
        }, this);
        break;
      case "tabmodal-dialog-loaded":
        let browser = subject.ownerGlobal.gBrowser.selectedBrowser;
        let prompt = browser.tabModalPromptBox.getPrompt(subject);
        this.promptReady(prompt.Dialog);
        break;
      case "common-dialog-loaded":
        this.promptReady(subject.Dialog);
        break;
    }
  },

  QueryInterface: ChromeUtils.generateQI(["nsIObserver"]),
};