<!DOCTYPE html>
<!--
@license
Copyright (C) 2016 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-annotation</title>
<script src="/test/common-test-setup.js"></script>
<script src="/bower_components/webcomponentsjs/custom-elements-es5-adapter.js"></script>

<script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
<script src="/bower_components/web-component-tester/browser.js"></script>
<link rel="import" href="../../../test/common-test-setup.html"/>
<script src="gr-annotation.js"></script>


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

<test-fixture id="basic">
  <template>
    <div>Lorem ipsum dolor sit amet, suspendisse inceptos vehicula</div>
  </template>
</test-fixture>

<script>
  suite('annotation', () => {
    let str;
    let parent;
    let textNode;
    let sandbox;

    setup(() => {
      sandbox = sinon.sandbox.create();
      parent = fixture('basic');
      textNode = parent.childNodes[0];
      str = textNode.textContent;
    });

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

    test('_annotateText Case 1', () => {
      GrAnnotation._annotateText(textNode, 0, str.length, 'foobar');

      assert.equal(parent.childNodes.length, 1);
      assert.instanceOf(parent.childNodes[0], HTMLElement);
      assert.equal(parent.childNodes[0].className, 'foobar');
      assert.instanceOf(parent.childNodes[0].childNodes[0], Text);
      assert.equal(parent.childNodes[0].childNodes[0].textContent, str);
    });

    test('_annotateText Case 2', () => {
      const length = 12;
      const substr = str.substr(0, length);
      const remainder = str.substr(length);

      GrAnnotation._annotateText(textNode, 0, length, 'foobar');

      assert.equal(parent.childNodes.length, 2);

      assert.instanceOf(parent.childNodes[0], HTMLElement);
      assert.equal(parent.childNodes[0].className, 'foobar');
      assert.instanceOf(parent.childNodes[0].childNodes[0], Text);
      assert.equal(parent.childNodes[0].childNodes[0].textContent, substr);

      assert.instanceOf(parent.childNodes[1], Text);
      assert.equal(parent.childNodes[1].textContent, remainder);
    });

    test('_annotateText Case 3', () => {
      const index = 12;
      const length = str.length - index;
      const remainder = str.substr(0, index);
      const substr = str.substr(index);

      GrAnnotation._annotateText(textNode, index, length, 'foobar');

      assert.equal(parent.childNodes.length, 2);

      assert.instanceOf(parent.childNodes[0], Text);
      assert.equal(parent.childNodes[0].textContent, remainder);

      assert.instanceOf(parent.childNodes[1], HTMLElement);
      assert.equal(parent.childNodes[1].className, 'foobar');
      assert.instanceOf(parent.childNodes[1].childNodes[0], Text);
      assert.equal(parent.childNodes[1].childNodes[0].textContent, substr);
    });

    test('_annotateText Case 4', () => {
      const index = str.indexOf('dolor');
      const length = 'dolor '.length;

      const remainderPre = str.substr(0, index);
      const substr = str.substr(index, length);
      const remainderPost = str.substr(index + length);

      GrAnnotation._annotateText(textNode, index, length, 'foobar');

      assert.equal(parent.childNodes.length, 3);

      assert.instanceOf(parent.childNodes[0], Text);
      assert.equal(parent.childNodes[0].textContent, remainderPre);

      assert.instanceOf(parent.childNodes[1], HTMLElement);
      assert.equal(parent.childNodes[1].className, 'foobar');
      assert.instanceOf(parent.childNodes[1].childNodes[0], Text);
      assert.equal(parent.childNodes[1].childNodes[0].textContent, substr);

      assert.instanceOf(parent.childNodes[2], Text);
      assert.equal(parent.childNodes[2].textContent, remainderPost);
    });

    test('_annotateElement design doc example', () => {
      const layers = [
        'amet, ',
        'inceptos ',
        'amet, ',
        'et, suspendisse ince',
      ];

      // Apply the layers successively.
      layers.forEach((layer, i) => {
        GrAnnotation.annotateElement(
            parent, str.indexOf(layer), layer.length, `layer-${i + 1}`);
      });

      assert.equal(parent.textContent, str);

      // Layer 1:
      const layer1 = parent.querySelectorAll('.layer-1');
      assert.equal(layer1.length, 1);
      assert.equal(layer1[0].textContent, layers[0]);
      assert.equal(layer1[0].parentElement, parent);

      // Layer 2:
      const layer2 = parent.querySelectorAll('.layer-2');
      assert.equal(layer2.length, 1);
      assert.equal(layer2[0].textContent, layers[1]);
      assert.equal(layer2[0].parentElement, parent);

      // Layer 3:
      const layer3 = parent.querySelectorAll('.layer-3');
      assert.equal(layer3.length, 1);
      assert.equal(layer3[0].textContent, layers[2]);
      assert.equal(layer3[0].parentElement, layer1[0]);

      // Layer 4:
      const layer4 = parent.querySelectorAll('.layer-4');
      assert.equal(layer4.length, 3);

      assert.equal(layer4[0].textContent, 'et, ');
      assert.equal(layer4[0].parentElement, layer3[0]);

      assert.equal(layer4[1].textContent, 'suspendisse ');
      assert.equal(layer4[1].parentElement, parent);

      assert.equal(layer4[2].textContent, 'ince');
      assert.equal(layer4[2].parentElement, layer2[0]);

      assert.equal(layer4[0].textContent +
          layer4[1].textContent +
          layer4[2].textContent,
      layers[3]);
    });

    test('splitTextNode', () => {
      const helloString = 'hello';
      const asciiString = 'ASCII';
      const unicodeString = 'Unic💢de';

      let node;
      let tail;

      // Non-unicode path:
      node = document.createTextNode(helloString + asciiString);
      tail = GrAnnotation.splitTextNode(node, helloString.length);
      assert(node.textContent, helloString);
      assert(tail.textContent, asciiString);

      // Unicdoe path:
      node = document.createTextNode(helloString + unicodeString);
      tail = GrAnnotation.splitTextNode(node, helloString.length);
      assert(node.textContent, helloString);
      assert(tail.textContent, unicodeString);
    });

    suite('annotateWithElement', () => {
      const fullText = '01234567890123456789';
      let mockSanitize;

      setup(() => {
        mockSanitize = sandbox.spy(window.Polymer, 'sanitizeDOMValue');
      });

      test('annotates when fully contained', () => {
        const length = 10;
        const container = document.createElement('div');
        container.textContent = fullText;
        GrAnnotation.annotateWithElement(
            container, 1, length, {tagName: 'test-wrapper'});

        assert.equal(
            container.innerHTML,
            '0<test-wrapper>1234567890</test-wrapper>123456789');
      });

      test('annotates when spanning multiple nodes', () => {
        const length = 10;
        const container = document.createElement('div');
        container.textContent = fullText;
        GrAnnotation.annotateElement(container, 5, length, 'testclass');
        GrAnnotation.annotateWithElement(
            container, 1, length, {tagName: 'test-wrapper'});

        assert.equal(
            container.innerHTML,
            '0'
              + '<test-wrapper>'
              + '1234'
              + '<hl class="testclass">567890</hl>'
              + '</test-wrapper>'
              + '<hl class="testclass">1234</hl>'
              + '56789');
      });

      test('annotates text node', () => {
        const length = 10;
        const container = document.createElement('div');
        container.textContent = fullText;
        GrAnnotation.annotateWithElement(
            container.childNodes[0], 1, length, {tagName: 'test-wrapper'});

        assert.equal(
            container.innerHTML,
            '0<test-wrapper>1234567890</test-wrapper>123456789');
      });

      test('sets sanitized attributes', () => {
        const container = document.createElement('div');
        container.textContent = fullText;
        const attributes = {
          'href': 'foo',
          'data-foo': 'bar',
          'class': 'hello world',
        };
        GrAnnotation.annotateWithElement(
            container, 1, length, {tagName: 'test-wrapper', attributes});
        assert(mockSanitize.calledWith(
            'foo', 'href', 'attribute', sinon.match.instanceOf(Element)));
        assert(mockSanitize.calledWith(
            'bar', 'data-foo', 'attribute', sinon.match.instanceOf(Element)));
        assert(mockSanitize.calledWith(
            'hello world',
            'class',
            'attribute',
            sinon.match.instanceOf(Element)));
        const el = container.querySelector('test-wrapper');
        assert.equal(el.getAttribute('href'), 'foo');
        assert.equal(el.getAttribute('data-foo'), 'bar');
        assert.equal(el.getAttribute('class'), 'hello world');
      });
    });
  });
</script>