/**
 * @license
 * Copyright (C) 2015 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.
 */

import '../../../test/common-test-setup-karma';
import './gr-search-bar';
import {GrSearchBar} from './gr-search-bar';
import '../../../scripts/util';
import {mockPromise, waitUntil} from '../../../test/test-utils';
import {_testOnly_clearDocsBaseUrlCache} from '../../../utils/url-util';
import * as MockInteractions from '@polymer/iron-test-helpers/mock-interactions';
import {
  createChangeConfig,
  createGerritInfo,
  createServerInfo,
} from '../../../test/test-data-generators';
import {MergeabilityComputationBehavior} from '../../../constants/constants';
import {queryAndAssert} from '../../../test/test-utils';
import {GrAutocomplete} from '../../shared/gr-autocomplete/gr-autocomplete';
import {PaperInputElement} from '@polymer/paper-input/paper-input';

const basicFixture = fixtureFromElement('gr-search-bar');

suite('gr-search-bar tests', () => {
  let element: GrSearchBar;

  setup(async () => {
    element = basicFixture.instantiate();
    await element.updateComplete;
  });

  test('value is propagated to inputVal', async () => {
    element.value = 'foo';
    await element.updateComplete;
    assert.equal(element.inputVal, 'foo');
  });

  const getActiveElement = () =>
    document.activeElement!.shadowRoot
      ? document.activeElement!.shadowRoot.activeElement
      : document.activeElement;

  test('enter in search input fires event', async () => {
    const promise = mockPromise();
    element.addEventListener('handle-search', () => {
      assert.notEqual(
        getActiveElement(),
        queryAndAssert<GrAutocomplete>(element, '#searchInput')
      );
      promise.resolve();
    });
    element.value = 'test';
    await element.updateComplete;
    const searchInput = queryAndAssert<GrAutocomplete>(element, '#searchInput');
    MockInteractions.pressAndReleaseKeyOn(
      queryAndAssert<HTMLInputElement>(searchInput, '#input'),
      13,
      null,
      'enter'
    );
    await promise;
  });

  test('input blurred after commit', async () => {
    const blurSpy = sinon.spy(
      queryAndAssert<PaperInputElement>(
        queryAndAssert<GrAutocomplete>(element, '#searchInput'),
        '#input'
      ),
      'blur'
    );
    queryAndAssert<GrAutocomplete>(element, '#searchInput').text = 'fate/stay';
    await element.updateComplete;
    MockInteractions.pressAndReleaseKeyOn(
      queryAndAssert<PaperInputElement>(
        queryAndAssert<GrAutocomplete>(element, '#searchInput'),
        '#input'
      ),
      13,
      null,
      'enter'
    );
    await waitUntil(() => blurSpy.called);
  });

  test('empty search query does not trigger nav', async () => {
    const searchSpy = sinon.spy();
    element.addEventListener('handle-search', searchSpy);
    element.value = '';
    await element.updateComplete;
    const searchInput = queryAndAssert<GrAutocomplete>(element, '#searchInput');
    MockInteractions.pressAndReleaseKeyOn(
      queryAndAssert<HTMLInputElement>(searchInput, '#input'),
      13,
      null,
      'enter'
    );
    assert.isFalse(searchSpy.called);
  });

  test('Predefined query op with no predication doesnt trigger nav', async () => {
    const searchSpy = sinon.spy();
    element.addEventListener('handle-search', searchSpy);
    element.value = 'added:';
    await element.updateComplete;
    const searchInput = queryAndAssert<GrAutocomplete>(element, '#searchInput');
    MockInteractions.pressAndReleaseKeyOn(
      queryAndAssert<HTMLInputElement>(searchInput, '#input'),
      13,
      null,
      'enter'
    );
    assert.isFalse(searchSpy.called);
  });

  test('predefined predicate query triggers nav', async () => {
    const searchSpy = sinon.spy();
    element.addEventListener('handle-search', searchSpy);
    element.value = 'age:1week';
    await element.updateComplete;
    const searchInput = queryAndAssert<GrAutocomplete>(element, '#searchInput');
    MockInteractions.pressAndReleaseKeyOn(
      queryAndAssert<HTMLInputElement>(searchInput, '#input'),
      13,
      null,
      'enter'
    );
    await waitUntil(() => searchSpy.called);
  });

  test('undefined predicate query triggers nav', async () => {
    const searchSpy = sinon.spy();
    element.addEventListener('handle-search', searchSpy);
    element.value = 'random:1week';
    await element.updateComplete;
    const searchInput = queryAndAssert<GrAutocomplete>(element, '#searchInput');
    MockInteractions.pressAndReleaseKeyOn(
      queryAndAssert<HTMLInputElement>(searchInput, '#input'),
      13,
      null,
      'enter'
    );
    await waitUntil(() => searchSpy.called);
  });

  test('empty undefined predicate query triggers nav', async () => {
    const searchSpy = sinon.spy();
    element.addEventListener('handle-search', searchSpy);
    element.value = 'random:';
    await element.updateComplete;
    const searchInput = queryAndAssert<GrAutocomplete>(element, '#searchInput');
    MockInteractions.pressAndReleaseKeyOn(
      queryAndAssert<HTMLInputElement>(searchInput, '#input'),
      13,
      null,
      'enter'
    );
    await waitUntil(() => searchSpy.called);
  });

  test('keyboard shortcuts', async () => {
    const focusSpy = sinon.spy(
      queryAndAssert<GrAutocomplete>(element, '#searchInput'),
      'focus'
    );
    const selectAllSpy = sinon.spy(
      queryAndAssert<GrAutocomplete>(element, '#searchInput'),
      'selectAll'
    );
    MockInteractions.pressAndReleaseKeyOn(document.body, 191, null, '/');
    assert.isTrue(focusSpy.called);
    assert.isTrue(selectAllSpy.called);
  });

  suite('getSearchSuggestions', () => {
    setup(async () => {
      element = basicFixture.instantiate();
      element.serverConfig = {
        ...createServerInfo(),
        change: {
          ...createChangeConfig(),
          mergeability_computation_behavior:
            'NEVER' as MergeabilityComputationBehavior,
        },
      };
      await element.updateComplete;
    });

    test('Autocompletes accounts', async () => {
      element.accountSuggestions = () =>
        Promise.resolve([{text: 'owner:fred@goog.co'}]);
      await element.updateComplete;
      const s = await element.getSearchSuggestions('owner:fr');
      assert.equal(s[0].value, 'owner:fred@goog.co');
    });

    test('Autocompletes groups', async () => {
      element.groupSuggestions = () =>
        Promise.resolve([
          {text: 'ownerin:Polygerrit'},
          {text: 'ownerin:gerrit'},
        ]);
      await element.updateComplete;
      const s = await element.getSearchSuggestions('ownerin:pol');
      assert.equal(s[0].value, 'ownerin:Polygerrit');
    });

    test('Autocompletes projects', async () => {
      element.projectSuggestions = () =>
        Promise.resolve([
          {text: 'project:Polygerrit'},
          {text: 'project:gerrit'},
          {text: 'project:gerrittest'},
        ]);
      await element.updateComplete;
      const s = await element.getSearchSuggestions('project:pol');
      assert.equal(s[0].value, 'project:Polygerrit');
    });

    test('Autocompletes simple searches', async () => {
      const s = await element.getSearchSuggestions('is:o');
      assert.equal(s[0].name, 'is:open');
      assert.equal(s[0].value, 'is:open');
      assert.equal(s[1].name, 'is:owner');
      assert.equal(s[1].value, 'is:owner');
    });

    test('Does not autocomplete with no match', async () => {
      const s = await element.getSearchSuggestions('asdasdasdasd');
      assert.equal(s.length, 0);
    });

    test('Autocompletes without is:mergable when disabled', async () => {
      const s = await element.getSearchSuggestions('is:mergeab');
      assert.isEmpty(s);
    });
  });

  [
    'API_REF_UPDATED_AND_CHANGE_REINDEX',
    'REF_UPDATED_AND_CHANGE_REINDEX',
  ].forEach(mergeability => {
    suite(`mergeability as ${mergeability}`, () => {
      setup(async () => {
        element = basicFixture.instantiate();
        element.serverConfig = {
          ...createServerInfo(),
          change: {
            ...createChangeConfig(),
            mergeability_computation_behavior:
              mergeability as MergeabilityComputationBehavior,
          },
        };
        await element.updateComplete;
      });

      test('Autocompltes with is:mergable when enabled', async () => {
        const s = await element.getSearchSuggestions('is:mergeab');
        assert.equal(s.length, 2);
        assert.equal(s[0].name, 'is:mergeable');
        assert.equal(s[0].value, 'is:mergeable');
        assert.equal(s[1].name, '-is:mergeable');
        assert.equal(s[1].value, '-is:mergeable');
      });
    });
  });

  suite('doc url', () => {
    setup(async () => {
      _testOnly_clearDocsBaseUrlCache();
      element = basicFixture.instantiate();
      element.serverConfig = {
        ...createServerInfo(),
        gerrit: {
          ...createGerritInfo(),
          doc_url: 'https://doc.com/',
        },
      };
      await element.updateComplete;
    });

    test('compute help doc url with correct path', () => {
      assert.equal(element.docBaseUrl, 'https://doc.com/');
      assert.equal(
        element.computeHelpDocLink(),
        'https://doc.com/user-search.html'
      );
    });

    test('compute help doc url fallback to gerrit url', () => {
      element.docBaseUrl = null;
      assert.equal(
        element.computeHelpDocLink(),
        'https://gerrit-review.googlesource.com/documentation/' +
          'user-search.html'
      );
    });
  });
});