<!--
Copyright (C) 2017 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.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->

<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', {
      getEditPrefs() { 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, '_getFileContent')
          .returns(Promise.resolve('text'));

      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');
      });
    });
  });

  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();
        });
      });
    });
  });

  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.$.file.value, originalText);
      assert.isTrue(element.$.save.hasAttribute('disabled'));
    });

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

      assert.equal(element.$.file.value, newText);
      assert.isFalse(element.$.save.hasAttribute('disabled'));

      MockInteractions.tap(element.$.save);
      assert(saveSpy.called);
      saveSpy.lastCall.returnValue.then(() => {
        assert.isTrue(saveFileStub.called);
        assert.deepEqual(saveFileStub.lastCall.args,
            [mockParams.changeNum, mockParams.path, newText]);
        assert.isFalse(navigateStub.called);
        done();
      });
    });

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

      assert.equal(element.$.file.value, newText);
      assert.isFalse(element.$.save.hasAttribute('disabled'));

      MockInteractions.tap(element.$.save);
      assert.isTrue(saveSpy.called);
      saveSpy.lastCall.returnValue.then(() => {
        assert.isTrue(saveFileStub.called);
        assert.isTrue(navigateStub.called);
        done();
      });
    });

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

      assert.equal(element.$.file.value, newText);
      assert.isFalse(element.$.save.hasAttribute('disabled'));

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