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<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
<title>gr-messages-list</title>

<script src="../../../bower_components/webcomponentsjs/webcomponents-lite.min.js"></script>
<script src="../../../bower_components/web-component-tester/browser.js"></script>
<link rel="import" href="../../../test/common-test-setup.html"/>
<link rel="import" href="../../diff/gr-comment-api/gr-comment-api.html">

<link rel="import" href="gr-messages-list.html">

<script>void(0);</script>

<dom-module id="comment-api-mock">
  <template>
    <gr-messages-list
        id="messagesList"
        change-comments="[[_changeComments]]"></gr-messages-list>
    <gr-comment-api id="commentAPI"></gr-comment-api>
  </template>
  <script src="../../diff/gr-comment-api/gr-comment-api-mock.js"></script>
</dom-module>

<test-fixture id="basic">
  <template>
    <comment-api-mock>
      <gr-messages-list></gr-messages-list>
    </comment-api-mock>
  </template>
</test-fixture>

<script>

  const randomMessage = function(opt_params) {
    const params = opt_params || {};
    const author1 = {
      _account_id: 1115495,
      name: 'Andrew Bonventre',
      email: 'andybons@chromium.org',
    };
    return {
      id: params.id || Math.random().toString(),
      date: params.date || '2016-01-12 20:28:33.038000',
      message: params.message || Math.random().toString(),
      _revision_number: params._revision_number || 1,
      author: params.author || author1,
    };
  };

  const randomAutomated = function(opt_params) {
    return Object.assign({tag: 'autogenerated:gerrit:replace'},
        randomMessage(opt_params));
  };

  suite('gr-messages-list tests', () => {
    let element;
    let messages;
    let sandbox;
    let commentApiWrapper;

    const getMessages = function() {
      return Polymer.dom(element.root).querySelectorAll('gr-message');
    };

    const author = {
      _account_id: 42,
      name: 'Marvin the Paranoid Android',
      email: 'marvin@sirius.org',
    };

    const comments = {
      file1: [
        {
          message: 'message text',
          updated: '2016-09-27 00:18:03.000000000',
          in_reply_to: '6505d749_f0bec0aa',
          line: 62,
          id: '6505d749_10ed44b2',
          patch_set: 2,
          author: {
            email: 'some@email.com',
            _account_id: 123,
          },
        },
        {
          message: 'message text',
          updated: '2016-09-27 00:18:03.000000000',
          in_reply_to: 'c5912363_6b820105',
          line: 42,
          id: '450a935e_0f1c05db',
          patch_set: 2,
          author,
        },
        {
          message: 'message text',
          updated: '2016-09-27 00:18:03.000000000',
          in_reply_to: '6505d749_f0bec0aa',
          line: 62,
          id: '6505d749_10ed44b2',
          patch_set: 2,
          author,
        },
      ],
      file2: [
        {
          message: 'message text',
          updated: '2016-09-27 00:18:03.000000000',
          in_reply_to: 'c5912363_4b7d450a',
          line: 132,
          id: '450a935e_4f260d25',
          patch_set: 2,
          author,
        },
      ],
    };

    setup(() => {
      stub('gr-rest-api-interface', {
        getConfig() { return Promise.resolve({}); },
        getLoggedIn() { return Promise.resolve(false); },
        getDiffComments() { return Promise.resolve(comments); },
        getDiffRobotComments() { return Promise.resolve({}); },
        getDiffDrafts() { return Promise.resolve({}); },
      });
      sandbox = sinon.sandbox.create();
      messages = _.times(3, randomMessage);
      // Element must be wrapped in an element with direct access to the
      // comment API.
      commentApiWrapper = fixture('basic');
      element = commentApiWrapper.$.messagesList;
      loadCommentSpy = sandbox.spy(commentApiWrapper.$.commentAPI, 'loadAll');
      element.messages = messages;

      // Stub methods on the changeComments object after changeComments has
      // been initalized.
      return commentApiWrapper.loadComments();
    });

    teardown(() => {
      sandbox.restore();
    });

    test('show some old messages', () => {
      assert.isTrue(element.$.messageControlsContainer.hasAttribute('hidden'));
      element.messages = _.times(26, randomMessage);
      flushAsynchronousOperations();

      assert.isFalse(element.$.messageControlsContainer.hasAttribute('hidden'));
      assert.equal(getMessages().length, 20);
      assert.equal(element.$.incrementMessagesBtn.innerText.toUpperCase()
          .trim(), 'SHOW 5 MORE');
      MockInteractions.tap(element.$.incrementMessagesBtn);
      flushAsynchronousOperations();

      assert.equal(getMessages().length, 25);
      assert.equal(element.$.incrementMessagesBtn.innerText.toUpperCase()
          .trim(), 'SHOW 1 MORE');
      MockInteractions.tap(element.$.incrementMessagesBtn);
      flushAsynchronousOperations();

      assert.isTrue(element.$.messageControlsContainer.hasAttribute('hidden'));
      assert.equal(getMessages().length, 26);
    });

    test('show all old messages', () => {
      assert.isTrue(element.$.messageControlsContainer.hasAttribute('hidden'));
      element.messages = _.times(26, randomMessage);
      flushAsynchronousOperations();

      assert.isFalse(element.$.messageControlsContainer.hasAttribute('hidden'));
      assert.equal(getMessages().length, 20);
      assert.equal(element.$.oldMessagesBtn.innerText.toUpperCase(),
          'SHOW ALL 6 MESSAGES');
      MockInteractions.tap(element.$.oldMessagesBtn);
      flushAsynchronousOperations();

      assert.equal(getMessages().length, 26);
      assert.isTrue(element.$.messageControlsContainer.hasAttribute('hidden'));
    });

    test('message count respects automated', () => {
      element.messages = _.times(10, randomAutomated)
          .concat(_.times(11, randomMessage));
      flushAsynchronousOperations();

      assert.equal(element.$.oldMessagesBtn.innerText.toUpperCase(),
          'SHOW 1 MESSAGE');
      assert.isFalse(element.$.messageControlsContainer.hasAttribute('hidden'));
      MockInteractions.tap(element.$.automatedMessageToggle);
      flushAsynchronousOperations();

      assert.isTrue(element.$.messageControlsContainer.hasAttribute('hidden'));
    });

    test('message count still respects non-automated on toggle', () => {
      element.messages = _.times(10, randomMessage)
          .concat(_.times(11, randomAutomated));
      flushAsynchronousOperations();

      assert.equal(element.$.oldMessagesBtn.innerText.toUpperCase(),
          'SHOW 1 MESSAGE');
      assert.isFalse(element.$.messageControlsContainer.hasAttribute('hidden'));
      MockInteractions.tap(element.$.automatedMessageToggle);
      flushAsynchronousOperations();

      assert.equal(element.$.oldMessagesBtn.innerText.toUpperCase(),
          'SHOW 1 MESSAGE');
      assert.isFalse(element.$.messageControlsContainer.hasAttribute('hidden'));
    });

    test('show all messages respects expand', () => {
      element.messages = _.times(10, randomAutomated)
          .concat(_.times(11, randomMessage));
      flushAsynchronousOperations();

      MockInteractions.tap(element.$$('#collapse-messages')); // Expand all.
      flushAsynchronousOperations();

      let messages = getMessages();
      assert.equal(messages.length, 20);
      for (const message of messages) {
        assert.isTrue(message._expanded);
      }

      MockInteractions.tap(element.$.oldMessagesBtn);
      flushAsynchronousOperations();

      messages = getMessages();
      assert.equal(messages.length, 21);
      for (const message of messages) {
        assert.isTrue(message._expanded);
      }
    });

    test('show all messages respects collapse', () => {
      element.messages = _.times(10, randomAutomated)
          .concat(_.times(11, randomMessage));
      flushAsynchronousOperations();

      MockInteractions.tap(element.$$('#collapse-messages')); // Expand all.
      MockInteractions.tap(element.$$('#collapse-messages')); // Collapse all.
      flushAsynchronousOperations();

      let messages = getMessages();
      assert.equal(messages.length, 20);
      for (const message of messages) {
        assert.isFalse(message._expanded);
      }

      MockInteractions.tap(element.$.oldMessagesBtn);
      flushAsynchronousOperations();

      messages = getMessages();
      assert.equal(messages.length, 21);
      for (const message of messages) {
        assert.isFalse(message._expanded);
      }
    });

    test('expand/collapse all', () => {
      let allMessageEls = getMessages();
      for (const message of allMessageEls) {
        message._expanded = false;
      }
      MockInteractions.tap(allMessageEls[1]);
      assert.isTrue(allMessageEls[1]._expanded);

      MockInteractions.tap(element.$$('#collapse-messages'));
      allMessageEls = getMessages();
      for (const message of allMessageEls) {
        assert.isTrue(message._expanded);
      }

      MockInteractions.tap(element.$$('#collapse-messages'));
      allMessageEls = getMessages();
      for (const message of allMessageEls) {
        assert.isFalse(message._expanded);
      }
    });

    test('expand/collapse from external keypress', () => {
      MockInteractions.tap(element.$$('#collapse-messages'));
      let allMessageEls = getMessages();
      for (const message of allMessageEls) {
        assert.isTrue(message._expanded);
      }

      // Expand/collapse all text also changes.
      assert.equal(element.$$('#collapse-messages').textContent.trim(),
          'Collapse all');

      MockInteractions.tap(element.$$('#collapse-messages'));
      allMessageEls = getMessages();
      for (const message of allMessageEls) {
        assert.isFalse(message._expanded);
      }
      // Expand/collapse all text also changes.
      assert.equal(element.$$('#collapse-messages').textContent.trim(),
          'Expand all');
    });

    test('hide messages does not appear when no automated messages', () => {
      assert.isOk(element.$$('#automatedMessageToggleContainer[hidden]'));
    });

    test('scroll to message', () => {
      const allMessageEls = getMessages();
      for (const message of allMessageEls) {
        message.set('message.expanded', false);
      }

      const scrollToStub = sandbox.stub(window, 'scrollTo');
      const highlightStub = sandbox.stub(element, '_highlightEl');

      element.scrollToMessage('invalid');

      for (const message of allMessageEls) {
        assert.isFalse(message._expanded,
            'expected gr-message to not be expanded');
      }

      const messageID = messages[1].id;
      element.scrollToMessage(messageID);
      assert.isTrue(
          element.$$('[data-message-id="' + messageID + '"]')._expanded);

      assert.isTrue(scrollToStub.calledOnce);
      assert.isTrue(highlightStub.calledOnce);
    });

    test('scroll to message offscreen', () => {
      const scrollToStub = sandbox.stub(window, 'scrollTo');
      const highlightStub = sandbox.stub(element, '_highlightEl');
      element.messages = _.times(25, randomMessage);
      flushAsynchronousOperations();
      assert.isFalse(scrollToStub.called);
      assert.isFalse(highlightStub.called);

      const messageID = element.messages[1].id;
      element.scrollToMessage(messageID);
      assert.isTrue(scrollToStub.calledOnce);
      assert.isTrue(highlightStub.calledOnce);
      assert.equal(element._visibleMessages.length, 24);
      assert.isTrue(
          element.$$('[data-message-id="' + messageID + '"]')._expanded);
    });

    test('messages', () => {
      const messages = [].concat(
          randomMessage(),
          {
            _index: 5,
            _revision_number: 4,
            message: 'Uploaded patch set 4.',
            date: '2016-09-28 13:36:33.000000000',
            author,
            id: '8c19ccc949c6d482b061be6a28e10782abf0e7af',
          },
          {
            _index: 6,
            _revision_number: 4,
            message: 'Patch Set 4:\n\n(6 comments)',
            date: '2016-09-28 13:36:33.000000000',
            author,
            id: 'e7bfdbc842f6b6d8064bc68e0f52b673f40c0ca5',
          }
      );
      element.messages = messages;
      const isAuthor = function(author, message) {
        return message.author._account_id === author._account_id;
      };
      const isMarvin = isAuthor.bind(null, author);
      flushAsynchronousOperations();
      const messageElements = getMessages();
      assert.equal(messageElements.length, messages.length);
      assert.deepEqual(messageElements[1].message, messages[1]);
      assert.deepEqual(messageElements[2].message, messages[2]);
      assert.deepEqual(messageElements[1].comments.file1,
          comments.file1.filter(isMarvin));
      assert.deepEqual(messageElements[1].comments.file2,
          comments.file2.filter(isMarvin));
      assert.deepEqual(messageElements[2].comments, {});
    });

    test('messages without author do not throw', () => {
      const messages = [{
        _index: 5,
        _revision_number: 4,
        message: 'Uploaded patch set 4.',
        date: '2016-09-28 13:36:33.000000000',
        id: '8c19ccc949c6d482b061be6a28e10782abf0e7af',
      }];
      element.messages = messages;
      flushAsynchronousOperations();
      const messageEls = getMessages();
      assert.equal(messageEls.length, 1);
      assert.equal(messageEls[0].message.message, messages[0].message);
    });

    test('hide increment text if increment >= total remaining', () => {
      // Test with stubbed return values, as _numRemaining and _getDelta have
      // their own tests.
      sandbox.stub(element, '_getDelta').returns(5);
      const remainingStub = sandbox.stub(element, '_numRemaining').returns(6);
      assert.isFalse(element._computeIncrementHidden(null, null, null));
      remainingStub.restore();

      sandbox.stub(element, '_numRemaining').returns(4);
      assert.isTrue(element._computeIncrementHidden(null, null, null));
    });
  });

  suite('gr-messages-list automate tests', () => {
    let element;
    let messages;
    let sandbox;
    let commentApiWrapper;

    const getMessages = function() {
      return Polymer.dom(element.root).querySelectorAll('gr-message');
    };
    const getHiddenMessages = function() {
      return Polymer.dom(element.root).querySelectorAll('gr-message[hidden]');
    };

    const randomMessageReviewer = {
      reviewer: {},
      date: '2016-01-13 20:30:33.038000',
    };

    setup(() => {
      stub('gr-rest-api-interface', {
        getConfig() { return Promise.resolve({}); },
        getLoggedIn() { return Promise.resolve(false); },
        getDiffComments() { return Promise.resolve({}); },
        getDiffRobotComments() { return Promise.resolve({}); },
        getDiffDrafts() { return Promise.resolve({}); },
      });

      sandbox = sinon.sandbox.create();
      messages = _.times(2, randomAutomated);
      messages.push(randomMessageReviewer);

      // Element must be wrapped in an element with direct access to the
      // comment API.
      commentApiWrapper = fixture('basic');
      element = commentApiWrapper.$.messagesList;
      loadCommentSpy = sandbox.spy(commentApiWrapper.$.commentAPI, 'loadAll');
      element.messages = messages;

      // Stub methods on the changeComments object after changeComments has
      // been initalized.
      return commentApiWrapper.loadComments();
    });

    teardown(() => {
      sandbox.restore();
    });

    test('hide autogenerated button is not hidden', () => {
      assert.isNotOk(element.$$('#automatedMessageToggle[hidden]'));
    });

    test('autogenerated messages are not hidden initially', () => {
      const allHiddenMessageEls = getHiddenMessages();

      // There are no hidden messages.
      assert.isFalse(!!allHiddenMessageEls.length);
    });

    test('autogenerated messages hidden after comments only toggle', () => {
      let allHiddenMessageEls = getHiddenMessages();

      element._hideAutomated = false;
      MockInteractions.tap(element.$.automatedMessageToggle);
      flushAsynchronousOperations();
      allMessageEls = getMessages();
      allHiddenMessageEls = getHiddenMessages();

      // Autogenerated messages are now hidden.
      assert.equal(allHiddenMessageEls.length, allMessageEls.length);
    });

    test('autogenerated messages not hidden after comments only toggle',
        () => {
          let allHiddenMessageEls = getHiddenMessages();

          element._hideAutomated = true;
          MockInteractions.tap(element.$.automatedMessageToggle);
          allHiddenMessageEls = getHiddenMessages();

          // Autogenerated messages are now hidden.
          assert.isFalse(!!allHiddenMessageEls.length);
        });

    test('_getDelta', () => {
      let messages = [randomMessage()];
      assert.equal(element._getDelta([], messages, false), 1);
      assert.equal(element._getDelta([], messages, true), 1);


      messages = _.times(7, randomMessage);
      assert.equal(element._getDelta([], messages, false), 5);
      assert.equal(element._getDelta([], messages, true), 5);

      messages = _.times(4, randomMessage)
          .concat(_.times(2, randomAutomated))
          .concat(_.times(3, randomMessage));

      const dummyArr = _.times(2, randomMessage);
      assert.equal(element._getDelta(dummyArr, messages, false), 5);
      assert.equal(element._getDelta(dummyArr, messages, true), 7);
    });

    test('_getHumanMessages', () => {
      assert.equal(
          element._getHumanMessages(_.times(5, randomAutomated)).length, 0);
      assert.equal(
          element._getHumanMessages(_.times(5, randomMessage)).length, 5);

      let messages = _.shuffle(_.times(5, randomMessage)
          .concat(_.times(5, randomAutomated)));
      messages = element._getHumanMessages(messages);
      assert.equal(messages.length, 5);
      assert.isFalse(element._hasAutomatedMessages(messages));
    });

    test('_computeLabelExtremes', () => {
      const computeSpy = sandbox.spy(element, '_computeLabelExtremes');

      element.labels = null;
      assert.isTrue(computeSpy.calledOnce);
      assert.deepEqual(computeSpy.lastCall.returnValue, {});

      element.labels = {};
      assert.isTrue(computeSpy.calledTwice);
      assert.deepEqual(computeSpy.lastCall.returnValue, {});

      element.labels = {'my-label': {}};
      assert.isTrue(computeSpy.calledThrice);
      assert.deepEqual(computeSpy.lastCall.returnValue, {});

      element.labels = {'my-label': {values: {}}};
      assert.equal(computeSpy.callCount, 4);
      assert.deepEqual(computeSpy.lastCall.returnValue, {});

      element.labels = {'my-label': {values: {'-12': {}}}};
      assert.equal(computeSpy.callCount, 5);
      assert.deepEqual(computeSpy.lastCall.returnValue,
          {'my-label': {min: -12, max: -12}});

      element.labels = {
        'my-label': {values: {'-12': {}}},
        'other-label': {values: {'-1': {}, ' 0': {}, '+1': {}}},
      };
      assert.equal(computeSpy.callCount, 6);
      assert.deepEqual(computeSpy.lastCall.returnValue, {
        'my-label': {min: -12, max: -12},
        'other-label': {min: -1, max: 1},
      });
    });
  });
</script>