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

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

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

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

<script>
  suite('gr-diff tests', function() {
    var element;

    setup(function() {
      stub('gr-rest-api-interface', {
        getLoggedIn: function() { return Promise.resolve(false); },
      });
      element = fixture('basic');
    });

    test('get drafts logged out', function(done) {
      element.patchRange = {basePatchNum: 0, patchNum: 0};

      var getDraftsStub = sinon.stub(element.$.restAPI, 'getDiffDrafts');
      var loggedInStub = sinon.stub(element, '_getLoggedIn',
          function() { return Promise.resolve(false); });
      element._getDiffDrafts().then(function(result) {
        assert.deepEqual(result, {baseComments: [], comments: []});
        sinon.assert.notCalled(getDraftsStub);
        loggedInStub.restore();
        getDraftsStub.restore();
        done();
      });
    });

    test('get drafts logged in', function(done) {
      element.patchRange = {basePatchNum: 0, patchNum: 0};
      var draftsResponse = {
        baseComments: [{id: 'foo'}],
        comments: [{id: 'bar'}],
      };
      var getDraftsStub = sinon.stub(element.$.restAPI, 'getDiffDrafts',
          function() { return Promise.resolve(draftsResponse); });
      var loggedInStub = sinon.stub(element, '_getLoggedIn',
          function() { return Promise.resolve(true); });
      element._getDiffDrafts().then(function(result) {
        assert.deepEqual(result, draftsResponse);
        loggedInStub.restore();
        getDraftsStub.restore();
        done();
      });
    });

    test('get comments and drafts', function(done) {
      var loggedInStub = sinon.stub(element, '_getLoggedIn',
          function() { return Promise.resolve(true); });
      var comments = {
        baseComments: [
          {id: 'bc1'},
          {id: 'bc2'},
        ],
        comments: [
          {id: 'c1'},
          {id: 'c2'},
        ],
      };
      var diffCommentsStub = sinon.stub(element, '_getDiffComments',
          function() { return Promise.resolve(comments); });

      var drafts = {
        baseComments: [
          {id: 'bd1'},
          {id: 'bd2'},
        ],
        comments: [
          {id: 'd1'},
          {id: 'd2'},
        ],
      };
      var diffDraftsStub = sinon.stub(element, '_getDiffDrafts',
          function() { return Promise.resolve(drafts); });

      element.changeNum = '42';
      element.patchRange = {
        basePatchNum: 'PARENT',
        patchNum: 3,
      };
      element.path = '/path/to/foo';
      element.projectConfig = {foo: 'bar'};

      element._getDiffCommentsAndDrafts().then(function(result) {
        assert.deepEqual(result, {
          meta: {
            changeNum: '42',
            patchRange: {
              basePatchNum: 'PARENT',
              patchNum: 3,
            },
            path: '/path/to/foo',
            projectConfig: {foo: 'bar'},
          },
          left: [
            {id: 'bc1'},
            {id: 'bc2'},
            {id: 'bd1', __draft: true},
            {id: 'bd2', __draft: true},
          ],
          right: [
            {id: 'c1'},
            {id: 'c2'},
            {id: 'd1', __draft: true},
            {id: 'd2', __draft: true},
          ],
        });

        diffCommentsStub.restore();
        diffDraftsStub.restore();
        loggedInStub.restore();
        done();
      });
    });

    test('remove comment', function() {
      element._comments = {
        meta: {
          changeNum: '42',
          patchRange: {
            basePatchNum: 'PARENT',
            patchNum: 3,
          },
          path: '/path/to/foo',
          projectConfig: {foo: 'bar'},
        },
        left: [
          {id: 'bc1'},
          {id: 'bc2'},
          {id: 'bd1', __draft: true},
          {id: 'bd2', __draft: true},
        ],
        right: [
          {id: 'c1'},
          {id: 'c2'},
          {id: 'd1', __draft: true},
          {id: 'd2', __draft: true},
        ],
      };

      element._removeComment({});
      // Using JSON.stringify because Safari 9.1 (11601.5.17.1) doesn’t seem to
      // believe that one object deepEquals another even when they do :-/.
      assert.equal(JSON.stringify(element._comments), JSON.stringify({
        meta: {
          changeNum: '42',
          patchRange: {
            basePatchNum: 'PARENT',
            patchNum: 3,
          },
          path: '/path/to/foo',
          projectConfig: {foo: 'bar'},
        },
        left: [
          {id: 'bc1'},
          {id: 'bc2'},
          {id: 'bd1', __draft: true},
          {id: 'bd2', __draft: true},
        ],
        right: [
          {id: 'c1'},
          {id: 'c2'},
          {id: 'd1', __draft: true},
          {id: 'd2', __draft: true},
        ],
      }));

      element._removeComment({id: 'bc2'});
      assert.equal(JSON.stringify(element._comments), JSON.stringify({
        meta: {
          changeNum: '42',
          patchRange: {
            basePatchNum: 'PARENT',
            patchNum: 3,
          },
          path: '/path/to/foo',
          projectConfig: {foo: 'bar'},
        },
        left: [
          {id: 'bc1'},
          {id: 'bd1', __draft: true},
          {id: 'bd2', __draft: true},
        ],
        right: [
          {id: 'c1'},
          {id: 'c2'},
          {id: 'd1', __draft: true},
          {id: 'd2', __draft: true},
        ],
      }));

      element._removeComment({id: 'd2'});
      assert.deepEqual(JSON.stringify(element._comments), JSON.stringify({
        meta: {
          changeNum: '42',
          patchRange: {
            basePatchNum: 'PARENT',
            patchNum: 3,
          },
          path: '/path/to/foo',
          projectConfig: {foo: 'bar'},
        },
        left: [
          {id: 'bc1'},
          {id: 'bd1', __draft: true},
          {id: 'bd2', __draft: true},
        ],
        right: [
          {id: 'c1'},
          {id: 'c2'},
          {id: 'd1', __draft: true},
        ],
      }));
    });

    test('renders image diffs', function(done) {
      var mockDiff = {
        meta_a: {name: 'carrot.jpg', content_type: 'image/jpeg', lines: 66},
        meta_b: {name: 'carrot.jpg', content_type: 'image/jpeg', lines: 560},
        intraline_status: 'OK',
        change_type: 'MODIFIED',
        diff_header: [
          'diff --git a/carrot.jpg b/carrot.jpg',
          'index 2adc47d..f9c2f2c 100644',
          '--- a/carrot.jpg',
          '+++ b/carrot.jpg',
          'Binary files differ',
        ],
        content: [{skip: 66}],
        binary: true,
      };
      var mockFile1 = {
        body: 'Qk06AAAAAAAAADYAAAAoAAAAAQAAAP////8BACAAAAAAAAAAAAATCwAAEwsAAA' +
            'AAAAAAAAAAAAAA/w==',
        type: 'image/bmp',
      };
      var mockFile2 = {
        body: 'Qk06AAAAAAAAADYAAAAoAAAAAQAAAP////8BACAAAAAAAAAAAAATCwAAEwsAAA' +
            'AAAAAAAAAA/////w==',
        type: 'image/bmp'
      };
      var mockCommit = {
        commit: '9a1a1d10baece5efbba10bc4ccf808a67a50ac0a',
        parents: [{
          commit: '7338aa9adfe57909f1fdaf88975cdea467d3382f',
          subject: 'Added a carrot',
        }],
        author: {
          name: 'Wyatt Allen',
          email: 'wyatta@google.com',
          date: '2016-05-23 21:44:51.000000000',
          tz: -420,
        },
        committer: {
          name: 'Wyatt Allen',
          email: 'wyatta@google.com',
          date: '2016-05-25 00:25:41.000000000',
          tz: -420,
        },
        subject: 'Updated the carrot',
        message: 'Updated the carrot\n\nChange-Id: Iabcd123\n',
      };
      var mockComments = {baseComments: [], comments: []};

      var stubs = [];
      stubs.push(sinon.stub(element, '_getDiff',
          function() { return Promise.resolve(mockDiff); }));
      stubs.push(sinon.stub(element.$.restAPI, 'getCommitInfo',
          function() { return Promise.resolve(mockCommit); }));
      stubs.push(sinon.stub(element.$.restAPI,
          'getCommitFileContents',
          function() { return Promise.resolve(mockFile1); }));
      stubs.push(sinon.stub(element.$.restAPI,
          'getChangeFileContents',
          function() { return Promise.resolve(mockFile2); }));
      stubs.push(sinon.stub(element.$.restAPI, '_getDiffComments',
          function() { return Promise.resolve(mockComments); }));
      stubs.push(sinon.stub(element.$.restAPI, 'getDiffDrafts',
          function() { return Promise.resolve(mockComments); }));

      element.patchRange = {basePatchNum: 'PARENT', patchNum: 1};

      var rendered = function() {
        // Recognizes that it should be an image diff.
        assert.isTrue(element.isImageDiff);
        assert.instanceOf(element._getDiffBuilder(element._diff,
            element._comments, element.prefs), GrDiffBuilderImage);

        // The left image rendered with the parent commit's version of the file.
        var leftInmage = element.$.diffTable.querySelector('td.left img');
        assert.isOk(leftInmage);
        assert.equal(leftInmage.getAttribute('src'),
            'data:image/bmp;base64, ' + mockFile1.body);

        // The right image rendered with this change's revision of the image.
        var rightInmage = element.$.diffTable.querySelector('td.right img');
        assert.isOk(rightInmage);
        assert.equal(rightInmage.getAttribute('src'),
            'data:image/bmp;base64, ' + mockFile2.body);

        // Cleanup.
        element.removeEventListener('render', rendered);
        stubs.forEach(function(stub) { stub.restore(); });

        done();
      };

      element.addEventListener('render', rendered);

      element.$.restAPI.getDiffPreferences().then(function(prefs) {
        element.prefs = prefs;
        element.reload();
      });
    });
  });
</script>