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

<script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>

<script src="/node_modules/@webcomponents/webcomponentsjs/webcomponents-lite.js"></script>
<script src="/components/wct-browser-legacy/browser.js"></script>

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

<script type="module">
import '../../../test/common-test-setup.js';
import './gr-autocomplete-dropdown.js';
suite('gr-autocomplete-dropdown', () => {
  let element;
  let sandbox;

  setup(() => {
    sandbox = sinon.sandbox.create();
    element = fixture('basic');
    element.open();
    element.suggestions = [
      {dataValue: 'test value 1', name: 'test name 1', text: 1, label: 'hi'},
      {dataValue: 'test value 2', name: 'test name 2', text: 2}];
    flushAsynchronousOperations();
  });

  teardown(() => {
    sandbox.restore();
    if (element.isOpen) element.close();
  });

  test('shows labels', () => {
    const els = element.$.suggestions.querySelectorAll('li');
    assert.equal(els[0].innerText.trim(), '1\nhi');
    assert.equal(els[1].innerText.trim(), '2');
  });

  test('escape key', done => {
    const closeSpy = sandbox.spy(element, 'close');
    MockInteractions.pressAndReleaseKeyOn(element, 27);
    flushAsynchronousOperations();
    assert.isTrue(closeSpy.called);
    done();
  });

  test('tab key', () => {
    const handleTabSpy = sandbox.spy(element, '_handleTab');
    const itemSelectedStub = sandbox.stub();
    element.addEventListener('item-selected', itemSelectedStub);
    MockInteractions.pressAndReleaseKeyOn(element, 9);
    assert.isTrue(handleTabSpy.called);
    assert.equal(element.$.cursor.index, 0);
    assert.isTrue(itemSelectedStub.called);
    assert.deepEqual(itemSelectedStub.lastCall.args[0].detail, {
      trigger: 'tab',
      selected: element.getCursorTarget(),
    });
  });

  test('enter key', () => {
    const handleEnterSpy = sandbox.spy(element, '_handleEnter');
    const itemSelectedStub = sandbox.stub();
    element.addEventListener('item-selected', itemSelectedStub);
    MockInteractions.pressAndReleaseKeyOn(element, 13);
    assert.isTrue(handleEnterSpy.called);
    assert.equal(element.$.cursor.index, 0);
    assert.deepEqual(itemSelectedStub.lastCall.args[0].detail, {
      trigger: 'enter',
      selected: element.getCursorTarget(),
    });
  });

  test('down key', () => {
    element.isHidden = true;
    const nextSpy = sandbox.spy(element.$.cursor, 'next');
    MockInteractions.pressAndReleaseKeyOn(element, 40);
    assert.isFalse(nextSpy.called);
    assert.equal(element.$.cursor.index, 0);
    element.isHidden = false;
    MockInteractions.pressAndReleaseKeyOn(element, 40);
    assert.isTrue(nextSpy.called);
    assert.equal(element.$.cursor.index, 1);
  });

  test('up key', () => {
    element.isHidden = true;
    const prevSpy = sandbox.spy(element.$.cursor, 'previous');
    MockInteractions.pressAndReleaseKeyOn(element, 38);
    assert.isFalse(prevSpy.called);
    assert.equal(element.$.cursor.index, 0);
    element.isHidden = false;
    element.$.cursor.setCursorAtIndex(1);
    assert.equal(element.$.cursor.index, 1);
    MockInteractions.pressAndReleaseKeyOn(element, 38);
    assert.isTrue(prevSpy.called);
    assert.equal(element.$.cursor.index, 0);
  });

  test('tapping selects item', () => {
    const itemSelectedStub = sandbox.stub();
    element.addEventListener('item-selected', itemSelectedStub);

    MockInteractions.tap(element.$.suggestions.querySelectorAll('li')[1]);
    flushAsynchronousOperations();
    assert.deepEqual(itemSelectedStub.lastCall.args[0].detail, {
      trigger: 'click',
      selected: element.$.suggestions.querySelectorAll('li')[1],
    });
  });

  test('tapping child still selects item', () => {
    const itemSelectedStub = sandbox.stub();
    element.addEventListener('item-selected', itemSelectedStub);

    MockInteractions.tap(element.$.suggestions.querySelectorAll('li')[0]
        .lastElementChild);
    flushAsynchronousOperations();
    assert.deepEqual(itemSelectedStub.lastCall.args[0].detail, {
      trigger: 'click',
      selected: element.$.suggestions.querySelectorAll('li')[0],
    });
  });

  test('updated suggestions resets cursor stops', () => {
    const resetStopsSpy = sandbox.spy(element, '_resetCursorStops');
    element.suggestions = [];
    assert.isTrue(resetStopsSpy.called);
  });
});
</script>