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

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

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

<script>
suite('gr-editor-view tests', () => {
  let element;
  let sandbox;
  let savePathStub;
  let saveFileStub;
  let changeDetailStub;
  let navigateStub;
  const mockParams = {
    changeNum: '42',
    path: 'foo/bar.baz',
  };

  setup(() => {
    stub('gr-rest-api-interface', {
      getLoggedIn() { return Promise.resolve(true); },
      getEditPreferences() { return Promise.resolve({}); },
    });
    sandbox = sinon.sandbox.create();
    element = fixture('basic');
    savePathStub = sandbox.stub(element.$.restAPI, 'renameFileInChangeEdit');
    saveFileStub = sandbox.stub(element.$.restAPI, 'saveChangeEdit');
    changeDetailStub = sandbox.stub(element.$.restAPI, 'getDiffChangeDetail');
    navigateStub = sandbox.stub(element, '_viewEditInChangeView');
  });

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

  suite('_paramsChanged', () => {
    test('incorrect view returns immediately', () => {
      element._paramsChanged(
          Object.assign({}, mockParams, {view: Gerrit.Nav.View.DIFF}));
      assert.notOk(element._changeNum);
    });

    test('good params proceed', () => {
      changeDetailStub.returns(Promise.resolve({}));
      const fileStub = sandbox.stub(element, '_getFileData', () => {
        element._content = 'text';
        element._newContent = 'text';
        element._type = 'application/octet-stream';
      });

      const promises = element._paramsChanged(
          Object.assign({}, mockParams, {view: Gerrit.Nav.View.EDIT}));

      flushAsynchronousOperations();
      assert.equal(element._changeNum, mockParams.changeNum);
      assert.equal(element._path, mockParams.path);
      assert.deepEqual(changeDetailStub.lastCall.args[0],
          mockParams.changeNum);
      assert.deepEqual(fileStub.lastCall.args,
          [mockParams.changeNum, mockParams.path]);

      return promises.then(() => {
        assert.equal(element._content, 'text');
        assert.equal(element._newContent, 'text');
        assert.equal(element._type, 'application/octet-stream');
      });
    });
  });

  test('edit file path', done => {
    element._changeNum = mockParams.changeNum;
    element._path = mockParams.path;
    savePathStub.onFirstCall().returns(Promise.resolve({}));
    savePathStub.onSecondCall().returns(Promise.resolve({ok: true}));

    // Calling with the same path should not navigate.
    element._handlePathChanged({detail: mockParams.path}).then(() => {
      assert.isFalse(savePathStub.called);
        // !ok response
      element._handlePathChanged({detail: 'newPath'}).then(() => {
        assert.isTrue(savePathStub.called);
        assert.isFalse(navigateStub.called);
        // ok response
        element._handlePathChanged({detail: 'newPath'}).then(() => {
          assert.isTrue(navigateStub.called);
          done();
        });
      });
    });
  });

  test('reacts to content-change event', () => {
    element._newContent = 'test';
    element.$.editorEndpoint.dispatchEvent(new CustomEvent('content-change', {
      bubbles: true,
      detail: {value: 'new content value'},
    }));
    flushAsynchronousOperations();

    assert.equal(element._newContent, 'new content value');
  });

  suite('edit file content', () => {
    const originalText = 'file text';
    const newText = 'file text changed';

    setup(() => {
      element._changeNum = mockParams.changeNum;
      element._path = mockParams.path;
      element._content = originalText;
      element._newContent = originalText;
      flushAsynchronousOperations();
    });

    test('initial load', () => {
      assert.equal(element.$.file.fileContent, originalText);
      assert.isTrue(element.$.save.hasAttribute('disabled'));
    });

    test('file modification and save, !ok response', () => {
      const saveSpy = sandbox.spy(element, '_saveEdit');
      const alertStub = sandbox.stub(element, '_showAlert');
      saveFileStub.returns(Promise.resolve({ok: false}));
      element._newContent = newText;
      flushAsynchronousOperations();

      assert.isFalse(element.$.save.hasAttribute('disabled'));
      assert.isFalse(element._saving);

      MockInteractions.tap(element.$.save);
      assert.isTrue(saveSpy.called);
      assert.equal(alertStub.lastCall.args[0], 'Saving changes...');
      assert.isTrue(element._saving);
      assert.isTrue(element.$.save.hasAttribute('disabled'));

      return saveSpy.lastCall.returnValue.then(() => {
        assert.isTrue(saveFileStub.called);
        assert.isFalse(element._saving);
        assert.equal(alertStub.lastCall.args[0], 'Failed to save changes');
        assert.deepEqual(saveFileStub.lastCall.args,
            [mockParams.changeNum, mockParams.path, newText]);
        assert.isFalse(navigateStub.called);
        assert.isFalse(element.$.save.hasAttribute('disabled'));
        assert.notEqual(element._content, element._newContent);
      });
    });

    test('file modification and save', () => {
      const saveSpy = sandbox.spy(element, '_saveEdit');
      const alertStub = sandbox.stub(element, '_showAlert');
      saveFileStub.returns(Promise.resolve({ok: true}));
      element._newContent = newText;
      flushAsynchronousOperations();

      assert.isFalse(element._saving);
      assert.isFalse(element.$.save.hasAttribute('disabled'));

      MockInteractions.tap(element.$.save);
      assert.isTrue(saveSpy.called);
      assert.equal(alertStub.lastCall.args[0], 'Saving changes...');
      assert.isTrue(element._saving);
      assert.isTrue(element.$.save.hasAttribute('disabled'));

      return saveSpy.lastCall.returnValue.then(() => {
        assert.isTrue(saveFileStub.called);
        assert.isFalse(element._saving);
        assert.equal(alertStub.lastCall.args[0], 'All changes saved');
        assert.isFalse(navigateStub.called);
        assert.isTrue(element.$.save.hasAttribute('disabled'));
        assert.equal(element._content, element._newContent);
      });
    });

    test('file modification and cancel', () => {
      const cancelSpy = sandbox.spy(element, '_handleCancelTap');
      element._newContent = newText;
      flushAsynchronousOperations();

      assert.isFalse(element.$.save.hasAttribute('disabled'));

      MockInteractions.tap(element.$.cancel);
      assert.isTrue(cancelSpy.called);
      assert.isFalse(saveFileStub.called);
      assert.isTrue(navigateStub.called);
    });
  });

  suite('_getFileData', () => {
    setup(() => {
      element._newContent = 'initial';
      element._content = 'initial';
      element._type = 'initial';
    });

    test('res.ok', () => {
      sandbox.stub(element.$.restAPI, 'getFileInChangeEdit')
          .returns(Promise.resolve({
            ok: true,
            type: 'text/javascript',
            content: 'new content',
          }));

      // Ensure no data is set with a bad response.
      return element._getFileData('1', 'test/path').then(() => {
        assert.equal(element._newContent, 'new content');
        assert.equal(element._content, 'new content');
        assert.equal(element._type, 'text/javascript');
      });
    });

    test('!res.ok', () => {
      sandbox.stub(element.$.restAPI, 'getFileInChangeEdit')
          .returns(Promise.resolve({}));

      // Ensure no data is set with a bad response.
      return element._getFileData('1', 'test/path').then(() => {
        assert.equal(element._newContent, 'initial');
        assert.equal(element._content, 'initial');
        assert.equal(element._type, 'initial');
      });
    });

    test('content is undefined', () => {
      sandbox.stub(element.$.restAPI, 'getFileInChangeEdit')
          .returns(Promise.resolve({
            ok: true,
            type: 'text/javascript',
          }));

      return element._getFileData('1', 'test/path').then(() => {
        assert.equal(element._newContent, '');
        assert.equal(element._content, '');
        assert.equal(element._type, 'text/javascript');
      });
    });

    test('content and type is undefined', () => {
      sandbox.stub(element.$.restAPI, 'getFileInChangeEdit')
          .returns(Promise.resolve({
            ok: true,
          }));

      return element._getFileData('1', 'test/path').then(() => {
        assert.equal(element._newContent, '');
        assert.equal(element._content, '');
        assert.equal(element._type, '');
      });
    });
  });

  test('_showAlert', done => {
    element.addEventListener('show-alert', e => {
      assert.deepEqual(e.detail, {message: 'test message'});
      assert.isTrue(e.bubbles);
      done();
    });

    element._showAlert('test message');
  });
});
</script>