/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

const path = require('path');
const versions = require('./versions.json');
const math = require('remark-math');
const katex = require('rehype-katex');
const VersionsArchived = require('./versionsArchived.json');
const {dogfoodingPluginInstances} = require('./_dogfooding/dogfooding.config');

// This probably only makes sense for the beta phase, temporary
function getNextBetaVersionName() {
  const expectedPrefix = '2.0.0-beta.';

  const lastReleasedVersion = versions[0];
  if (!lastReleasedVersion.includes(expectedPrefix)) {
    throw new Error(
      'this code is only meant to be used during the 2.0 beta phase.',
    );
  }
  const version = parseInt(lastReleasedVersion.replace(expectedPrefix, ''), 10);
  return `${expectedPrefix}${version + 1}`;
}

const allDocHomesPaths = [
  '/docs/',
  '/docs/next/',
  ...versions.slice(1).map((version) => `/docs/${version}/`),
];

const isDev = process.env.NODE_ENV === 'development';

const isDeployPreview =
  process.env.NETLIFY && process.env.CONTEXT === 'deploy-preview';

const baseUrl = process.env.BASE_URL || '/';
const isBootstrapPreset = process.env.DOCUSAURUS_PRESET === 'bootstrap';

// Special deployment for staging locales until they get enough translations
// https://app.netlify.com/sites/docusaurus-i18n-staging
// https://docusaurus-i18n-staging.netlify.app/
const isI18nStaging = process.env.I18N_STAGING === 'true';

const isVersioningDisabled = !!process.env.DISABLE_VERSIONING || isI18nStaging;

/** @type {import('@docusaurus/types').DocusaurusConfig} */
(module.exports = {
  title: 'Docusaurus',
  tagline: 'Build optimized websites quickly, focus on your content',
  organizationName: 'facebook',
  projectName: 'docusaurus',
  baseUrl,
  baseUrlIssueBanner: true,
  url: 'https://docusaurus.io',
  // Dogfood both settings:
  // - force trailing slashes for deploy previews
  // - avoid trailing slashes in prod
  trailingSlash: isDeployPreview,
  stylesheets: [
    {
      href: 'https://cdn.jsdelivr.net/npm/katex@0.13.11/dist/katex.min.css',
      integrity:
        'sha384-Um5gpz1odJg5Z4HAmzPtgZKdTBHZdw8S29IecapCSB31ligYPhHQZMIlWLYQGVoc',
      crossorigin: 'anonymous',
    },
  ],
  i18n: {
    defaultLocale: 'en',
    locales: isDeployPreview
      ? // Deploy preview: keep it fast!
        ['en']
      : isI18nStaging
      ? // Staging locales: https://docusaurus-i18n-staging.netlify.app/
        ['en', 'ja']
      : // Production locales
        ['en', 'fr', 'ko', 'zh-CN'],
  },
  webpack: {
    jsLoader: (isServer) => ({
      loader: require.resolve('esbuild-loader'),
      options: {
        loader: 'tsx',
        format: isServer ? 'cjs' : undefined,
        target: isServer ? 'node12' : 'es2017',
      },
    }),
  },
  onBrokenLinks: 'throw',
  onBrokenMarkdownLinks: 'warn',
  favicon: 'img/docusaurus.ico',
  customFields: {
    description:
      'An optimized site generator in React. Docusaurus helps you to move fast and write content. Build documentation websites, blogs, marketing pages, and more.',
  },
  clientModules: [require.resolve('./_dogfooding/clientModuleExample.ts')],
  themes: ['@docusaurus/theme-live-codeblock'],
  plugins: [
    [
      '@docusaurus/plugin-content-docs',
      {
        id: 'community',
        path: 'community',
        routeBasePath: 'community',
        editUrl: ({locale, versionDocsDirPath, docPath}) => {
          if (locale !== 'en') {
            return `https://crowdin.com/project/docusaurus-v2/${locale}`;
          }
          return `https://github.com/facebook/docusaurus/edit/master/website/${versionDocsDirPath}/${docPath}`;
        },
        editCurrentVersion: true,
        sidebarPath: require.resolve('./sidebarsCommunity.js'),
        showLastUpdateAuthor: true,
        showLastUpdateTime: true,
      },
    ],
    [
      '@docusaurus/plugin-client-redirects',
      {
        fromExtensions: ['html'],
        createRedirects: function (path) {
          // redirect to /docs from /docs/introduction,
          // as introduction has been made the home doc
          if (allDocHomesPaths.includes(path)) {
            return [`${path}/introduction`];
          }
        },
        redirects: [
          {
            from: ['/docs/support', '/docs/next/support'],
            to: '/community/support',
          },
          {
            from: ['/docs/team', '/docs/next/team'],
            to: '/community/team',
          },
          {
            from: ['/docs/resources', '/docs/next/resources'],
            to: '/community/resources',
          },
        ],
      },
    ],
    [
      '@docusaurus/plugin-ideal-image',
      {
        quality: 70,
        max: 1030, // max resized image's size.
        min: 640, // min resized image's size. if original is lower, use that size.
        steps: 2, // the max number of images generated between min and max (inclusive)
      },
    ],
    [
      '@docusaurus/plugin-pwa',
      {
        debug: isDeployPreview,
        offlineModeActivationStrategies: [
          'appInstalled',
          'standalone',
          'queryString',
        ],
        // swRegister: false,
        swCustom: path.resolve(__dirname, 'src/sw.js'),
        pwaHead: [
          {
            tagName: 'link',
            rel: 'icon',
            href: 'img/docusaurus.png',
          },
          {
            tagName: 'link',
            rel: 'manifest',
            href: 'manifest.json',
          },
          {
            tagName: 'meta',
            name: 'theme-color',
            content: 'rgb(37, 194, 160)',
          },
          {
            tagName: 'meta',
            name: 'apple-mobile-web-app-capable',
            content: 'yes',
          },
          {
            tagName: 'meta',
            name: 'apple-mobile-web-app-status-bar-style',
            content: '#000',
          },
          {
            tagName: 'link',
            rel: 'apple-touch-icon',
            href: 'img/docusaurus.png',
          },
          {
            tagName: 'link',
            rel: 'mask-icon',
            href: 'img/docusaurus.png',
            color: 'rgb(62, 204, 94)',
          },
          {
            tagName: 'meta',
            name: 'msapplication-TileImage',
            content: 'img/docusaurus.png',
          },
          {
            tagName: 'meta',
            name: 'msapplication-TileColor',
            content: '#000',
          },
        ],
      },
    ],
    ...dogfoodingPluginInstances,
  ],
  presets: [
    [
      isBootstrapPreset
        ? '@docusaurus/preset-bootstrap'
        : '@docusaurus/preset-classic',
      {
        debug: true, // force debug plugin usage
        docs: {
          // routeBasePath: '/',
          path: 'docs',
          sidebarPath: 'sidebars.js',
          // sidebarCollapsible: false,
          // sidebarCollapsed: true,
          editUrl: ({locale, docPath}) => {
            if (locale !== 'en') {
              return `https://crowdin.com/project/docusaurus-v2/${locale}`;
            }
            // We want users to submit doc updates to the upstream/next version!
            // Otherwise we risk losing the update on the next release.
            const nextVersionDocsDirPath = 'docs';
            return `https://github.com/facebook/docusaurus/edit/master/website/${nextVersionDocsDirPath}/${docPath}`;
          },
          showLastUpdateAuthor: true,
          showLastUpdateTime: true,
          remarkPlugins: [
            math,
            [require('@docusaurus/remark-plugin-npm2yarn'), {sync: true}],
          ],
          rehypePlugins: [katex],
          disableVersioning: isVersioningDisabled,
          lastVersion: isDev ? 'current' : undefined,
          onlyIncludeVersions:
            !isVersioningDisabled && (isDev || isDeployPreview)
              ? ['current', ...versions.slice(0, 2)]
              : undefined,
          versions: {
            current: {
              label: `${getNextBetaVersionName()} 🚧`,
            },
          },
        },
        blog: {
          // routeBasePath: '/',
          path: 'blog',
          editUrl: ({locale, blogDirPath, blogPath}) => {
            if (locale !== 'en') {
              return `https://crowdin.com/project/docusaurus-v2/${locale}`;
            }
            return `https://github.com/facebook/docusaurus/edit/master/website/${blogDirPath}/${blogPath}`;
          },
          postsPerPage: 3,
          feedOptions: {
            type: 'all',
            copyright: `Copyright © ${new Date().getFullYear()} Facebook, Inc.`,
          },
          blogSidebarCount: 'ALL',
          blogSidebarTitle: 'All our posts',
        },
        pages: {
          remarkPlugins: [require('@docusaurus/remark-plugin-npm2yarn')],
        },
        theme: {
          customCss: [require.resolve('./src/css/custom.css')],
        },
      },
    ],
  ],
  themeConfig: {
    liveCodeBlock: {
      playgroundPosition: 'bottom',
    },
    hideableSidebar: true,
    colorMode: {
      defaultMode: 'light',
      disableSwitch: false,
      respectPrefersColorScheme: true,
    },
    announcementBar: {
      id: 'announcementBar-1', // Increment on change
      content:
        '⭐️ If you like Docusaurus, give it a star on <a target="_blank" rel="noopener noreferrer" href="https://github.com/facebook/docusaurus">GitHub</a>! ⭐',
    },
    prism: {
      theme: require('prism-react-renderer/themes/github'),
      darkTheme: require('prism-react-renderer/themes/dracula'),
      additionalLanguages: ['java'],
    },
    image: 'img/docusaurus-soc.png',
    // metadatas: [{name: 'twitter:card', content: 'summary'}],
    gtag: !isDeployPreview
      ? {
          trackingID: 'UA-141789564-1',
        }
      : undefined,
    algolia: {
      apiKey: '47ecd3b21be71c5822571b9f59e52544',
      indexName: 'docusaurus-2',
      contextualSearch: true,
    },
    navbar: {
      hideOnScroll: true,
      title: 'Docusaurus',
      logo: {
        alt: 'Docusaurus Logo',
        src: 'img/docusaurus.svg',
        srcDark: 'img/docusaurus_keytar.svg',
      },
      items: [
        {
          type: 'doc',
          position: 'left',
          docId: 'introduction',
          label: 'Docs',
        },
        {
          type: 'doc',
          position: 'left',
          docId: 'cli',
          label: 'API',
        },
        {to: 'blog', label: 'Blog', position: 'left'},
        {to: 'showcase', label: 'Showcase', position: 'left'},
        {
          to: '/community/support',
          label: 'Community',
          position: 'left',
          activeBaseRegex: `/community/`,
        },
        // right
        {
          type: 'docsVersionDropdown',
          position: 'right',
          dropdownActiveClassDisabled: true,
          dropdownItemsAfter: [
            ...Object.entries(VersionsArchived).map(
              ([versionName, versionUrl]) => ({
                label: versionName,
                href: versionUrl,
              }),
            ),
            {
              href: 'https://v1.docusaurus.io',
              label: '1.x.x',
            },
            {
              to: '/versions',
              label: 'All versions',
            },
          ],
        },
        {
          type: 'localeDropdown',
          position: 'right',
          dropdownItemsAfter: [
            {
              href: 'https://github.com/facebook/docusaurus/issues/3526',
              label: 'Help Us Translate',
            },
          ],
        },
        {
          href: 'https://github.com/facebook/docusaurus',
          position: 'right',
          className: 'header-github-link',
          'aria-label': 'GitHub repository',
        },
      ],
    },
    footer: {
      style: 'dark',
      links: [
        {
          title: 'Learn',
          items: [
            {
              label: 'Introduction',
              to: 'docs',
            },
            {
              label: 'Installation',
              to: 'docs/installation',
            },
            {
              label: 'Migration from v1 to v2',
              to: 'docs/migration',
            },
          ],
        },
        {
          title: 'Community',
          items: [
            {
              label: 'Stack Overflow',
              href: 'https://stackoverflow.com/questions/tagged/docusaurus',
            },
            {
              label: 'Feedback',
              to: 'feedback',
            },
            {
              label: 'Discord',
              href: 'https://discordapp.com/invite/docusaurus',
            },
            {
              label: 'Help',
              to: '/community/support',
            },
          ],
        },
        {
          title: 'More',
          items: [
            {
              label: 'Blog',
              to: 'blog',
            },
            {
              label: 'GitHub',
              href: 'https://github.com/facebook/docusaurus',
            },
            {
              label: 'Twitter',
              href: 'https://twitter.com/docusaurus',
            },
            {
              html: `
                <a href="https://www.netlify.com" target="_blank" rel="noreferrer noopener" aria-label="Deploys by Netlify">
                  <img src="https://www.netlify.com/img/global/badges/netlify-color-accent.svg" alt="Deploys by Netlify" />
                </a>
              `,
            },
          ],
        },
        {
          title: 'Legal',
          // Please do not remove the privacy and terms, it's a legal requirement.
          items: [
            {
              label: 'Privacy',
              href: 'https://opensource.facebook.com/legal/privacy/',
            },
            {
              label: 'Terms',
              href: 'https://opensource.facebook.com/legal/terms/',
            },
            {
              label: 'Data Policy',
              href: 'https://opensource.facebook.com/legal/data-policy/',
            },
            {
              label: 'Cookie Policy',
              href: 'https://opensource.facebook.com/legal/cookie-policy/',
            },
          ],
        },
      ],
      logo: {
        alt: 'Facebook Open Source Logo',
        src: 'img/oss_logo.png',
        href: 'https://opensource.facebook.com',
      },
      copyright: `Copyright © ${new Date().getFullYear()} Facebook, Inc. Built with Docusaurus.`,
    },
  },
});