/**
 * Copyright 2017 Google Inc. All rights reserved.
 *
 * 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.
 */

const { runCommands, ensureReleasedAPILinks } = require('.');
const Source = require('../Source');
const expect = require('expect');

describe('doclint preprocessor specs', function () {
  describe('ensureReleasedAPILinks', function () {
    it('should work with non-release version', function () {
      const source = new Source(
        'doc.md',
        `
      [API](https://github.com/puppeteer/puppeteer/blob/v1.1.0/docs/api.md#class-page)
    `
      );
      const messages = ensureReleasedAPILinks([source], '1.3.0-post');
      expect(messages.length).toBe(1);
      expect(messages[0].type).toBe('warning');
      expect(messages[0].text).toContain('doc.md');
      expect(source.text()).toBe(`
      [API](https://github.com/puppeteer/puppeteer/blob/v1.3.0/docs/api.md#class-page)
    `);
    });
    it('should work with release version', function () {
      const source = new Source(
        'doc.md',
        `
      [API](https://github.com/puppeteer/puppeteer/blob/v1.1.0/docs/api.md#class-page)
    `
      );
      const messages = ensureReleasedAPILinks([source], '1.3.0');
      expect(messages.length).toBe(1);
      expect(messages[0].type).toBe('warning');
      expect(messages[0].text).toContain('doc.md');
      expect(source.text()).toBe(`
      [API](https://github.com/puppeteer/puppeteer/blob/v1.3.0/docs/api.md#class-page)
    `);
    });
    it('should keep main branch links intact', function () {
      const source = new Source(
        'doc.md',
        `
      [API](https://github.com/puppeteer/puppeteer/blob/main/docs/api.md#class-page)
    `
      );
      const messages = ensureReleasedAPILinks([source], '1.3.0');
      expect(messages.length).toBe(0);
      expect(source.text()).toBe(`
      [API](https://github.com/puppeteer/puppeteer/blob/main/docs/api.md#class-page)
    `);
    });
  });

  describe('runCommands', function () {
    it('should throw for unknown command', function () {
      const source = new Source(
        'doc.md',
        `
      <!-- gen:unknown-command -->something<!-- gen:stop -->
    `
      );
      const messages = runCommands([source], '1.1.1');
      expect(source.hasUpdatedText()).toBe(false);
      expect(messages.length).toBe(1);
      expect(messages[0].type).toBe('error');
      expect(messages[0].text).toContain('Unknown command');
    });
    describe('gen:version', function () {
      it('should work', function () {
        const source = new Source(
          'doc.md',
          `
        Puppeteer <!-- gen:version -->XXX<!-- gen:stop -->
      `
        );
        const messages = runCommands([source], '1.2.0');
        expect(messages.length).toBe(1);
        expect(messages[0].type).toBe('warning');
        expect(messages[0].text).toContain('doc.md');
        expect(source.text()).toBe(`
        Puppeteer <!-- gen:version -->v1.2.0<!-- gen:stop -->
      `);
      });
      it('should work for *-post versions', function () {
        const source = new Source(
          'doc.md',
          `
        Puppeteer <!-- gen:version -->XXX<!-- gen:stop -->
      `
        );
        const messages = runCommands([source], '1.2.0-post');
        expect(messages.length).toBe(1);
        expect(messages[0].type).toBe('warning');
        expect(messages[0].text).toContain('doc.md');
        expect(source.text()).toBe(`
        Puppeteer <!-- gen:version -->Tip-Of-Tree<!-- gen:stop -->
      `);
      });
      it('should tolerate different writing', function () {
        const source = new Source(
          'doc.md',
          `Puppeteer v<!--   gEn:version -->WHAT
<!--     GEN:stop   -->`
        );
        runCommands([source], '1.1.1');
        expect(source.text()).toBe(
          `Puppeteer v<!--   gEn:version -->v1.1.1<!--     GEN:stop   -->`
        );
      });
      it('should not tolerate missing gen:stop', function () {
        const source = new Source('doc.md', `<!--GEN:version-->`);
        const messages = runCommands([source], '1.2.0');
        expect(source.hasUpdatedText()).toBe(false);
        expect(messages.length).toBe(1);
        expect(messages[0].type).toBe('error');
        expect(messages[0].text).toContain(`Failed to find 'gen:stop'`);
      });
    });
    describe('gen:empty-if-release', function () {
      it('should clear text when release version', function () {
        const source = new Source(
          'doc.md',
          `
        <!-- gen:empty-if-release -->XXX<!-- gen:stop -->
      `
        );
        const messages = runCommands([source], '1.1.1');
        expect(messages.length).toBe(1);
        expect(messages[0].type).toBe('warning');
        expect(messages[0].text).toContain('doc.md');
        expect(source.text()).toBe(`
        <!-- gen:empty-if-release --><!-- gen:stop -->
      `);
      });
      it('should keep text when non-release version', function () {
        const source = new Source(
          'doc.md',
          `
        <!-- gen:empty-if-release -->XXX<!-- gen:stop -->
      `
        );
        const messages = runCommands([source], '1.1.1-post');
        expect(messages.length).toBe(0);
        expect(source.text()).toBe(`
        <!-- gen:empty-if-release -->XXX<!-- gen:stop -->
      `);
      });
    });
    describe('gen:toc', function () {
      it('should work', () => {
        const source = new Source(
          'doc.md',
          `<!-- gen:toc -->XXX<!-- gen:stop -->
        ### class: page
        #### page.$
        #### page.$$`
        );
        const messages = runCommands([source], '1.3.0');
        expect(messages.length).toBe(1);
        expect(messages[0].type).toBe('warning');
        expect(messages[0].text).toContain('doc.md');
        expect(source.text()).toBe(`<!-- gen:toc -->
- [class: page](#class-page)
  * [page.$](#page)
  * [page.$$](#page-1)
<!-- gen:stop -->
        ### class: page
        #### page.$
        #### page.$$`);
      });
      it('should work with code blocks', () => {
        const source = new Source(
          'doc.md',
          `<!-- gen:toc -->XXX<!-- gen:stop -->
        ### class: page

        \`\`\`bash
        # yo comment
        \`\`\`
      `
        );
        const messages = runCommands([source], '1.3.0');
        expect(messages.length).toBe(1);
        expect(messages[0].type).toBe('warning');
        expect(messages[0].text).toContain('doc.md');
        expect(source.text()).toBe(`<!-- gen:toc -->
- [class: page](#class-page)
<!-- gen:stop -->
        ### class: page

        \`\`\`bash
        # yo comment
        \`\`\`
      `);
      });
      it('should work with links in titles', () => {
        const source = new Source(
          'doc.md',
          `<!-- gen:toc -->XXX<!-- gen:stop -->
        ### some [link](#foobar) here
      `
        );
        const messages = runCommands([source], '1.3.0');
        expect(messages.length).toBe(1);
        expect(messages[0].type).toBe('warning');
        expect(messages[0].text).toContain('doc.md');
        expect(source.text()).toBe(`<!-- gen:toc -->
- [some link here](#some-link-here)
<!-- gen:stop -->
        ### some [link](#foobar) here
      `);
      });
    });
    it('should work with multiple commands', function () {
      const source = new Source(
        'doc.md',
        `
      <!-- gen:version -->XXX<!-- gen:stop -->
      <!-- gen:empty-if-release -->YYY<!-- gen:stop -->
      <!-- gen:version -->ZZZ<!-- gen:stop -->
    `
      );
      const messages = runCommands([source], '1.1.1');
      expect(messages.length).toBe(1);
      expect(messages[0].type).toBe('warning');
      expect(messages[0].text).toContain('doc.md');
      expect(source.text()).toBe(`
      <!-- gen:version -->v1.1.1<!-- gen:stop -->
      <!-- gen:empty-if-release --><!-- gen:stop -->
      <!-- gen:version -->v1.1.1<!-- gen:stop -->
    `);
    });
  });
});
