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<!--
Copyright (C) 2016 The Android Open Source Project

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
<title>gr-settings-view</title>

<script src="../../../bower_components/webcomponentsjs/webcomponents.min.js"></script>
<script src="../../../bower_components/web-component-tester/browser.js"></script>

<link rel="import" href="../../../bower_components/iron-test-helpers/iron-test-helpers.html">
<link rel="import" href="gr-settings-view.html">

<test-fixture id="basic">
  <template>
    <gr-settings-view></gr-settings-view>
  </template>
</test-fixture>

<test-fixture id="blank">
  <template>
    <div></div>
  </template>
</test-fixture>

<script>
  suite('gr-settings-view tests', function() {
    var element;
    var account;
    var preferences;
    var diffPreferences;
    var config;
    var sandbox;

    function valueOf(title, fieldsetid) {
      var sections = element.$[fieldsetid].querySelectorAll('section');
      var titleEl;
      for (var i = 0; i < sections.length; i++) {
        titleEl = sections[i].querySelector('.title');
        if (titleEl.textContent === title) {
          return sections[i].querySelector('.value');
        }
      }
    }

    // Because deepEqual isn't behaving in Safari.
    function assertMenusEqual(actual, expected) {
      assert.equal(actual.length, expected.length);
      for (var i = 0; i < actual.length; i++) {
        assert.equal(actual[i].name, expected[i].name);
        assert.equal(actual[i].url, expected[i].url);
      }
    }

    function stubAddAccountEmail(statusCode) {
      return sandbox.stub(element.$.restAPI, 'addAccountEmail',
          function() { return Promise.resolve({status: statusCode}); });
    }

    setup(function(done) {
      sandbox = sinon.sandbox.create();
      account = {
        _account_id: 123,
        name: 'user name',
        email: 'user@email',
        username: 'user username',
        registered: '2000-01-01 00:00:00.000000000',
      };
      preferences = {
        changes_per_page: 25,
        date_format: 'UK',
        time_format: 'HHMM_12',
        diff_view: 'UNIFIED_DIFF',
        email_strategy: 'ENABLED',
        email_format: 'HTML_PLAINTEXT',

        my: [
          {url: '/first/url', name: 'first name', target: '_blank'},
          {url: '/second/url', name: 'second name', target: '_blank'},
        ],
        change_table: [],
      };
      diffPreferences = {
        context: 10,
        tab_size: 8,
        font_size: 12,
        line_length: 100,
        cursor_blink_rate: 0,
        line_wrapping: false,
        intraline_difference: true,
        show_line_endings: true,
        show_tabs: true,
        show_whitespace_errors: true,
        syntax_highlighting: true,
        auto_hide_diff_table_header: true,
        theme: 'DEFAULT',
        ignore_whitespace: 'IGNORE_NONE'
      };
      config = {auth: {editable_account_fields: []}};

      stub('gr-rest-api-interface', {
        getLoggedIn: function() { return Promise.resolve(true); },
        getAccount: function() { return Promise.resolve(account); },
        getPreferences: function() { return Promise.resolve(preferences); },
        getDiffPreferences: function() {
          return Promise.resolve(diffPreferences);
        },
        getWatchedProjects: function() {
          return Promise.resolve([]);
        },
        getAccountEmails: function() { return Promise.resolve(); },
        getConfig: function() { return Promise.resolve(config); },
        getAccountGroups: function() { return Promise.resolve([]); },
      });
      element = fixture('basic');

      // Allow the element to render.
      element._loadingPromise.then(done);
    });

    teardown(function() {
      sandbox.restore();
    });

    test('calls the title-change event', function() {
      var titleChangedStub = sandbox.stub();

      // Create a new view.
      var newElement = document.createElement('gr-settings-view');
      newElement.addEventListener('title-change', titleChangedStub);

      // Attach it to the fixture.
      var blank = fixture('blank');
      blank.appendChild(newElement);

      Polymer.dom.flush();

      assert.isTrue(titleChangedStub.called);
      assert.equal(titleChangedStub.getCall(0).args[0].detail.title,
          'Settings');
    });

    test('user preferences', function(done) {
      // Rendered with the expected preferences selected.
      assert.equal(valueOf('Changes per page', 'preferences')
          .firstElementChild.bindValue, preferences.changes_per_page);
      assert.equal(valueOf('Date/time format', 'preferences')
          .firstElementChild.bindValue, preferences.date_format);
      assert.equal(valueOf('Date/time format', 'preferences')
          .lastElementChild.bindValue, preferences.time_format);
      assert.equal(valueOf('Email notifications', 'preferences')
          .firstElementChild.bindValue, preferences.email_strategy);
      assert.equal(valueOf('Email format', 'preferences')
          .firstElementChild.bindValue, preferences.email_format);
      assert.equal(valueOf('Diff view', 'preferences')
          .firstElementChild.bindValue, preferences.diff_view);
      assert.equal(valueOf('Expand inline diffs', 'preferences')
          .firstElementChild.checked, false);

      assert.isFalse(element._prefsChanged);
      assert.isFalse(element._menuChanged);

      // Change the diff view element.
      var diffSelect = valueOf('Diff view', 'preferences').firstElementChild;
      diffSelect.bindValue = 'SIDE_BY_SIDE';

      var expandInlineDiffs =
          valueOf('Expand inline diffs', 'preferences').firstElementChild;
      diffSelect.fire('change');

      MockInteractions.tap(expandInlineDiffs);

      assert.isTrue(element._prefsChanged);
      assert.isFalse(element._menuChanged);

      stub('gr-rest-api-interface', {
        savePreferences: function(prefs) {
          assert.equal(prefs.diff_view, 'SIDE_BY_SIDE');
          assertMenusEqual(prefs.my, preferences.my);
          assert.equal(prefs.expand_inline_diffs, true);
          return Promise.resolve();
        }
      });

      // Save the change.
      element._handleSavePreferences().then(function() {
        assert.isFalse(element._prefsChanged);
        assert.isFalse(element._menuChanged);
        done();
      });
    });

    test('diff preferences', function(done) {
      // Rendered with the expected preferences selected.
      assert.equal(valueOf('Context', 'diffPreferences')
          .firstElementChild.bindValue, diffPreferences.context);
      assert.equal(valueOf('Diff width', 'diffPreferences')
          .firstElementChild.bindValue, diffPreferences.line_length);
      assert.equal(valueOf('Tab width', 'diffPreferences')
          .firstElementChild.bindValue, diffPreferences.tab_size);
      assert.equal(valueOf('Font size', 'diffPreferences')
          .firstElementChild.bindValue, diffPreferences.font_size);
      assert.equal(valueOf('Show tabs', 'diffPreferences')
          .firstElementChild.checked, diffPreferences.show_tabs);
      assert.equal(valueOf('Show trailing whitespace', 'diffPreferences')
          .firstElementChild.checked, diffPreferences.show_whitespace_errors);
      assert.equal(valueOf('Fit to screen', 'diffPreferences')
          .firstElementChild.checked, diffPreferences.line_wrapping);

      assert.isFalse(element._diffPrefsChanged);

      var showTabsCheckbox = valueOf('Show tabs', 'diffPreferences')
          .firstElementChild;
      showTabsCheckbox.checked = false;
      element._handleShowTabsChanged();

      assert.isTrue(element._diffPrefsChanged);

      stub('gr-rest-api-interface', {
        saveDiffPreferences: function(prefs) {
          assert.equal(prefs.show_tabs, false);
          return Promise.resolve();
        }
      });

      // Save the change.
      element._handleSaveDiffPreferences().then(function() {
        assert.isFalse(element._diffPrefsChanged);
        done();
      });
    });

    test('columns input is hidden with fit to scsreen is selected', function() {
      assert.isFalse(element.$.columnsPref.hidden);

      MockInteractions.tap(element.$.lineWrapping);
      assert.isTrue(element.$.columnsPref.hidden);

      MockInteractions.tap(element.$.lineWrapping);
      assert.isFalse(element.$.columnsPref.hidden);
    });

    test('menu', function(done) {
      assert.isFalse(element._menuChanged);
      assert.isFalse(element._prefsChanged);

      assertMenusEqual(element._localMenu, preferences.my);

      var menu = element.$.menu.firstElementChild;
      var tableRows = Polymer.dom(menu.root).querySelectorAll('tbody tr');
      assert.equal(tableRows.length, preferences.my.length);

      // Add a menu item:
      element.splice('_localMenu', 1, 0, {name: 'foo', url: 'bar', target: ''});
      Polymer.dom.flush();

      tableRows = Polymer.dom(menu.root).querySelectorAll('tbody tr');
      assert.equal(tableRows.length, preferences.my.length + 1);

      assert.isTrue(element._menuChanged);
      assert.isFalse(element._prefsChanged);

      stub('gr-rest-api-interface', {
        savePreferences: function(prefs) {
          assertMenusEqual(prefs.my, element._localMenu);
          return Promise.resolve();
        }
      });

      element._handleSaveMenu().then(function() {
        assert.isFalse(element._menuChanged);
        assert.isFalse(element._prefsChanged);
        assertMenusEqual(element.prefs.my, element._localMenu);
        done();
      });
    });

    test('add email validation', function() {
      assert.isFalse(element._isNewEmailValid('invalid email'));
      assert.isTrue(element._isNewEmailValid('vaguely@valid.email'));

      assert.isFalse(
          element._computeAddEmailButtonEnabled('invalid email'), true);
      assert.isFalse(
          element._computeAddEmailButtonEnabled('vaguely@valid.email', true));
      assert.isTrue(
          element._computeAddEmailButtonEnabled('vaguely@valid.email', false));
    });

    test('add email does not save invalid', function() {
      var addEmailStub = stubAddAccountEmail(201);

      assert.isFalse(element._addingEmail);
      assert.isNotOk(element._lastSentVerificationEmail);
      element._newEmail = 'invalid email';

      element._handleAddEmailButton();

      assert.isFalse(element._addingEmail);
      assert.isFalse(addEmailStub.called);
      assert.isNotOk(element._lastSentVerificationEmail);

      assert.isFalse(addEmailStub.called);
    });

    test('add email does save valid', function(done) {
      var addEmailStub = stubAddAccountEmail(201);

      assert.isFalse(element._addingEmail);
      assert.isNotOk(element._lastSentVerificationEmail);
      element._newEmail = 'valid@email.com';

      element._handleAddEmailButton();

      assert.isTrue(element._addingEmail);
      assert.isTrue(addEmailStub.called);

      assert.isTrue(addEmailStub.called);
      addEmailStub.lastCall.returnValue.then(function() {
        assert.isOk(element._lastSentVerificationEmail);
        done();
      });
    });

    test('add email does not set last-email if error', function(done) {
      var addEmailStub = stubAddAccountEmail(500);

      assert.isNotOk(element._lastSentVerificationEmail);
      element._newEmail = 'valid@email.com';

      element._handleAddEmailButton();

      assert.isTrue(addEmailStub.called);
      addEmailStub.lastCall.returnValue.then(function() {
        assert.isNotOk(element._lastSentVerificationEmail);
        done();
      });
    });

    test('emails are loaded without emailToken', function() {
      sandbox.stub(element.$.emailEditor, 'loadData');
      element.params = {};
      element.attached();
      assert.isTrue(element.$.emailEditor.loadData.calledOnce);
    });

    suite('when email verification token is provided', function() {
      var resolveConfirm;

      setup(function() {
        sandbox.stub(element.$.emailEditor, 'loadData');
        sandbox.stub(element.$.restAPI, 'confirmEmail', function() {
          return new Promise(function(resolve) { resolveConfirm = resolve; });
        });
        element.params = {emailToken: 'foo'};
        element.attached();
      });

      test('it is used to confirm email via rest API', function() {
        assert.isTrue(element.$.restAPI.confirmEmail.calledOnce);
        assert.isTrue(element.$.restAPI.confirmEmail.calledWith('foo'));
      });

      test('emails are not loaded initially', function() {
        assert.isFalse(element.$.emailEditor.loadData.called);
      });

      test('user emails are loaded after email confirmed', function(done) {
        element._loadingPromise.then(function() {
          assert.isTrue(element.$.emailEditor.loadData.calledOnce);
          done();
        });
        resolveConfirm();
      });

      test('show-alert is fired when email is confirmed', function(done) {
        sandbox.spy(element, 'fire');
        element._loadingPromise.then(function() {
          assert.isTrue(
              element.fire.calledWith('show-alert', {message: 'bar'}));
          done();
        });
        resolveConfirm('bar');
      });

    });
  });
</script>