/**
 * @license
 * Copyright 2022 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import '../../../test/common-test-setup';
import {assert, fixture, html} from '@open-wc/testing';
import {changeModelToken} from '../../../models/change/change-model';
import {
  ConfigModel,
  configModelToken,
} from '../../../models/config/config-model';
import {wrapInProvider} from '../../../models/di-provider-element';
import {getAppContext} from '../../../services/app-context';
import './gr-markdown';
import {GrMarkdown} from './gr-markdown';
import {createConfig} from '../../../test/test-data-generators';
import {waitUntilObserved} from '../../../test/test-utils';
import {CommentLinks} from '../../../api/rest-api';
import {testResolver} from '../../../test/common-test-setup';

suite('gr-markdown tests', () => {
  let element: GrMarkdown;
  let configModel: ConfigModel;

  async function setCommentLinks(commentlinks: CommentLinks) {
    configModel.updateRepoConfig({...createConfig(), commentlinks});
    await waitUntilObserved(
      configModel.repoCommentLinks$,
      links => links === commentlinks
    );
  }

  setup(async () => {
    configModel = new ConfigModel(
      testResolver(changeModelToken),
      getAppContext().restApiService
    );
    await setCommentLinks({
      customLinkRewrite: {
        match: '(LinkRewriteMe)',
        link: 'http://google.com/$1',
      },
      customHtmlRewrite: {
        match: 'HTMLRewriteMe',
        html: '<div>HTMLRewritten</div>',
      },
    });
    element = (
      await fixture(
        wrapInProvider(
          html`<gr-markdown></gr-markdown>`,
          configModelToken,
          configModel
        )
      )
    ).querySelector('gr-markdown')!;
  });

  test('renders plain text with links and rewrites', async () => {
    element.markdown = `text
    \ntext with plain link: google.com
    \ntext with config link: LinkRewriteMe
    \ntext with config html: HTMLRewriteMe`;
    await element.updateComplete;

    assert.shadowDom.equal(
      element,
      /* HTML */ `
        <marked-element>
          <div slot="markdown-html">
            <p>text</p>
            <p>
              text with plain link:
              <a href="http://google.com" rel="noopener" target="_blank">
                google.com
              </a>
            </p>
            <p>
              text with config link:
              <a
                href="http://google.com/LinkRewriteMe"
                rel="noopener"
                target="_blank"
              >
                LinkRewriteMe
              </a>
            </p>
            <p>text with config html:</p>
            <div>HTMLRewritten</div>
            <p></p>
          </div>
        </marked-element>
      `
    );
  });

  test('renders headings with links and rewrites', async () => {
    element.markdown = `# h1-heading
    \n## h2-heading
    \n### h3-heading
    \n#### h4-heading
    \n##### h5-heading
    \n###### h6-heading
    \n# heading with plain link: google.com
    \n# heading with config link: LinkRewriteMe
    \n# heading with config html: HTMLRewriteMe`;
    await element.updateComplete;

    assert.shadowDom.equal(
      element,
      /* HTML */ `
        <marked-element>
          <div slot="markdown-html">
            <h1 id="h1-heading">h1-heading</h1>
            <h2 id="h2-heading">h2-heading</h2>
            <h3 id="h3-heading">h3-heading</h3>
            <h4 id="h4-heading">h4-heading</h4>
            <h5 id="h5-heading">h5-heading</h5>
            <h6 id="h6-heading">h6-heading</h6>
            <h1 id="heading-with-plain-link-google-com">
              heading with plain link:
              <a href="http://google.com" rel="noopener" target="_blank">
                google.com
              </a>
            </h1>
            <h1 id="heading-with-config-link-linkrewriteme">
              heading with config link:
              <a
                href="http://google.com/LinkRewriteMe"
                rel="noopener"
                target="_blank"
              >
                LinkRewriteMe
              </a>
            </h1>
            <h1 id="heading-with-config-html-htmlrewriteme">
              heading with config html:
              <div>HTMLRewritten</div>
            </h1>
          </div>
        </marked-element>
      `
    );
  });

  test('renders inline-code without linking or rewriting', async () => {
    element.markdown = `\`inline code\`
    \n\`inline code with plain link: google.com\`
    \n\`inline code with config link: LinkRewriteMe\`
    \n\`inline code with config html: HTMLRewriteMe\``;
    await element.updateComplete;

    assert.shadowDom.equal(
      element,
      /* HTML */ `
        <marked-element>
          <div slot="markdown-html">
            <p>
              <code> inline code </code>
            </p>
            <p>
              <code> inline code with plain link: google.com </code>
            </p>
            <p>
              <code> inline code with config link: LinkRewriteMe </code>
            </p>
            <p>
              <code> inline code with config html: HTMLRewriteMe </code>
            </p>
          </div>
        </marked-element>
      `
    );
  });
  test('renders multiline-code without linking or rewriting', async () => {
    element.markdown = `\`\`\`\nmultiline code\n\`\`\`
    \n\`\`\`\nmultiline code with plain link: google.com\n\`\`\`
    \n\`\`\`\nmultiline code with config link: LinkRewriteMe\n\`\`\`
    \n\`\`\`\nmultiline code with config html: HTMLRewriteMe\n\`\`\``;
    await element.updateComplete;

    assert.shadowDom.equal(
      element,
      /* HTML */ `
        <marked-element>
          <div slot="markdown-html">
            <pre>
              <code> multiline code </code>
            </pre>
            <pre>
              <code> multiline code with plain link: google.com </code>
            </pre>
            <pre>
              <code> multiline code with config link: LinkRewriteMe </code>
            </pre>
            <pre>
              <code> multiline code with config html: HTMLRewriteMe </code>
            </pre>
          </div>
        </marked-element>
      `
    );
  });

  test('does not render inline images into <img> tags', async () => {
    element.markdown = '![img](google.com/img.png)';
    await element.updateComplete;

    assert.shadowDom.equal(
      element,
      /* HTML */ `
        <marked-element>
          <div slot="markdown-html">
            <p>![img](google.com/img.png)</p>
          </div>
        </marked-element>
      `
    );
  });

  test('renders inline links into <a> tags', async () => {
    element.markdown = '[myLink](https://www.google.com)';
    await element.updateComplete;

    assert.shadowDom.equal(
      element,
      /* HTML */ `
        <marked-element>
          <div slot="markdown-html">
            <p>
              <a href="https://www.google.com">myLink</a>
            </p>
          </div>
        </marked-element>
      `
    );
  });

  test('renders block quotes with links and rewrites', async () => {
    element.markdown = `> block quote
    \n> block quote with plain link: google.com
    \n> block quote with config link: LinkRewriteMe
    \n> block quote with config html: HTMLRewriteMe`;
    await element.updateComplete;

    assert.shadowDom.equal(
      element,
      /* HTML */ `
        <marked-element>
          <div slot="markdown-html">
            <blockquote>
              <p>block quote</p>
            </blockquote>
            <blockquote>
              <p>
                block quote with plain link:
                <a href="http://google.com" rel="noopener" target="_blank">
                  google.com
                </a>
              </p>
            </blockquote>
            <blockquote>
              <p>
                block quote with config link:
                <a
                  href="http://google.com/LinkRewriteMe"
                  rel="noopener"
                  target="_blank"
                >
                  LinkRewriteMe
                </a>
              </p>
            </blockquote>
            <blockquote>
              <p>block quote with config html:</p>
              <div>HTMLRewritten</div>
              <p></p>
            </blockquote>
          </div>
        </marked-element>
      `
    );
  });

  test('never renders typed html', async () => {
    element.markdown = `plain text <div>foo</div>
    \n\`inline code <div>foo</div>\`
    \n\`\`\`\nmultiline code <div>foo</div>\`\`\`
    \n> block quote <div>foo</div>
    \n[inline link <div>foo</div>](http://google.com)`;
    await element.updateComplete;

    const escapedDiv = '&lt;div&gt;foo&lt;/div&gt;';
    assert.shadowDom.equal(
      element,
      /* HTML */ `
        <marked-element>
          <div slot="markdown-html">
            <p>plain text ${escapedDiv}</p>
            <p>
              <code> inline code ${escapedDiv} </code>
            </p>
            <pre>
              <code>
                multiline code ${escapedDiv}
              </code>
            </pre>
            <blockquote>
              <p>block quote ${escapedDiv}</p>
            </blockquote>
            <p>
              <a href="http://google.com"> inline link ${escapedDiv} </a>
            </p>
          </div>
        </marked-element>
      `
    );
  });
});