import fs from 'fs';

import type * as Preset from '@docusaurus/preset-classic';
import type { NavbarItem } from '@docusaurus/theme-common';
import type { Config } from '@docusaurus/types';
import yaml from 'js-yaml';
import { themes as prismThemes } from 'prism-react-renderer';

import docuservix from './plugins/docuservix';

interface DocsConfig {
    title: string;
    project: { org: string; repo: string };
    dirs?: { docs?: string; blog?: string };
}

const docsConfig = yaml.load(fs.readFileSync('./.docuservix.yml', 'utf8')) as DocsConfig;

const { title } = docsConfig;

const url = process.env.DOCUSERVIX_URL || 'http://example.com';

const { org, repo } = docsConfig.project;

const { docs: _docsDir = 'docs', blog: blogDir } = docsConfig.dirs || {};

const giteaUrl = 'https://git.jt4d.ru';
const onBrokenLinks =
    (process.env.DOCUSERVIX_ON_BROKEN_LINKS as Config['onBrokenLinks']) || 'throw';

const config: Config = {
    title,
    favicon: 'img/favicon.ico',

    markdown: {
        mermaid: true,
    },
    plugins: [docuservix()],
    themes: ['@docusaurus/theme-mermaid'],

    // Future flags, see https://docusaurus.io/docs/api/docusaurus-config#future
    future: {
        v4: true, // Improve compatibility with the upcoming Docusaurus v4
    },

    // Set the production url of your site here
    url,
    // Set the /<baseUrl>/ pathname under which your site is served
    // For GitHub pages deployment, it is often '/<projectName>/'
    baseUrl: '/',

    // GitHub pages deployment config.
    // If you aren't using GitHub pages, you don't need these.
    organizationName: org,
    projectName: repo,

    onBrokenLinks,

    // Even if you don't use internationalization, you can use this field to set
    // useful metadata like html lang. For example, if your site is Chinese, you
    // may want to replace "en" with "zh-Hans".
    i18n: {
        defaultLocale: 'ru',
        locales: ['ru'],
    },

    presets: [
        [
            'classic',
            {
                blog: {
                    showReadingTime: true,
                    feedOptions: {
                        type: ['rss', 'atom'],
                        xslt: true,
                    },
                    // Useful options to enforce blogging best practices
                    onInlineTags: 'warn',
                    onInlineAuthors: 'warn',
                    onUntruncatedBlogPosts: 'warn',
                },
                theme: {
                    customCss: './src/css/custom.css',
                },
            } satisfies Preset.Options,
        ],
    ],

    themeConfig: {
        // Replace with your project's social card
        image: 'img/docusaurus-social-card.jpg',
        colorMode: {
            respectPrefersColorScheme: true,
        },
        navbar: {
            title: title,
            logo: {
                alt: 'Logo',
                src: 'img/logo.svg',
            },
            items: [
                {
                    to: '/docs',
                    label: 'Документация',
                    position: 'left',
                },
                blogDir
                    ? {
                          to: '/blog',
                          label: 'Блог',
                          position: 'left',
                      }
                    : undefined,
                {
                    href: `${giteaUrl}/${org}/${repo}`,
                    label: 'Gitea',
                    position: 'right',
                },
            ].filter((item): item is NavbarItem => !!item),
        },
        footer: {
            style: 'dark',
            copyright:
                'Проект хостится на JT4D.ru, документация собрана с использованием Docuservix и Docusaurus.',
        },
        prism: {
            theme: prismThemes.github,
            darkTheme: prismThemes.dracula,
        },
    } satisfies Preset.ThemeConfig,
};

export default config;