// @ts-check
import { defineConfig } from 'astro/config';
import starlight from '@astrojs/starlight';
import mdx from '@astrojs/mdx';
import { unified } from '@astrojs/markdown-remark';
import remarkMath from 'remark-math';
import rehypeKatex from 'rehype-katex';
import remarkMermaid from './src/plugins/remark-mermaid.mjs';
import rehypeStaticMermaid, { mermaidThemes } from './src/plugins/rehype-mermaid.mjs';

export default defineConfig({
  site: 'https://docs.simba-robotics.com',
  redirects: { '/': '/zh-cn/' },
  markdown: {
    processor: unified({
      remarkPlugins: [remarkMath, remarkMermaid],
      rehypePlugins: [rehypeKatex, [rehypeStaticMermaid, { themes: mermaidThemes }]],
    }),
  },
  vite: {
    build: {
      rolldownOptions: {
        onwarn(warning, warn) {
          // Astro 7.3 identifies propagated CSS by the virtual module's query.
          // Rolldown does not understand Astro's generated directive; keep the
          // module and its assets intact and ignore only this specific warning.
          if (
            warning.code === 'MODULE_LEVEL_DIRECTIVE' &&
            warning.message.includes('"use astro:head-inject"') &&
            warning.message.includes('.mdx?astroPropagatedAssets')
          ) return;
          warn(warning);
        },
      },
    },
  },
  integrations: [starlight({
    title: 'ΣDOCS',
    disable404Route: true,
    description: 'Simba Robotics / 黑龙江大学 602 创新实验室的工程知识库与校内赛手册。',
    defaultLocale: 'zh-cn',
    locales: {
      'zh-cn': { label: '简体中文', lang: 'zh-CN' },
      en: { label: 'English', lang: 'en' },
    },
    favicon: '/simba/logo.svg',
    logo: {
      light: './public/simba/logo-light.svg',
      dark: './public/simba/logo.svg',
      alt: 'Simba Robotics',
    },
    /*
     * `fonts.generated.css` carries the font stacks and the KaTeX faces. It is
     * produced by `scripts/generate-fonts.mjs` at predev/prebuild, and it must
     * stay last so its stack wins over Starlight's defaults. Note that KaTeX is
     * no longer imported from node_modules: doing so would make the bundler copy
     * the ~1 MB `KaTeX_*.woff2` set into `dist/_astro`.
     */
    customCss: ['./src/styles/custom.css', './src/styles/fonts.generated.css'],
    components: { Head: './src/components/Head.astro' },
    expressiveCode: {
      styleOverrides: {
        codeFontFamily: 'var(--sl-font)',
        uiFontFamily: 'var(--sl-font)',
        codeBackground: 'var(--sl-color-bg-nav)',
      },
    },
    social: [
      { icon: 'external', label: 'Simba 战队主站', href: 'https://simba-robotics.com' },
      { icon: 'github', label: '文档仓库', href: 'https://git.simba-robotics.com/PRAM/simba_docs' },
    ],
    sidebar: [
      { label: '文档首页', translations: { en: 'Documentation home' }, slug: 'index' },
      { label: '开始阅读', translations: { en: 'Start here' }, items: [{ autogenerate: { directory: 'guides' } }] },
      { label: '2026 校内赛 · RMIC', translations: { en: '2026 Campus Competition' }, items: [{ autogenerate: { directory: 'competition' } }] },
      { label: '机械架构 · MEST', translations: { en: 'Mechanical Engineering' }, items: [{ autogenerate: { directory: 'mest' } }] },
      { label: '电传测控 · ELCT', translations: { en: 'Electronics & Control' }, items: [{ autogenerate: { directory: 'elct' } }] },
      { label: '视觉算法 · VSAG', translations: { en: 'Vision & Algorithms' }, items: [{ autogenerate: { directory: 'vsag' } }] },
      { label: '宣传筹划 · PRAM', translations: { en: 'Operations & Media' }, items: [{ autogenerate: { directory: 'pram' } }] },
    ],
  }),
    // Keep SVG styles executable as style elements, instead of serializing
    // Astro's set:html directive into inert attributes during MDX optimization.
    mdx({ optimize: { ignoreElementNames: ['style'] } }),
  ],
});