import { defineConfig } from 'astro/config';
import tailwindcss from '@tailwindcss/vite';
import sitemap from '@astrojs/sitemap';
import starlight from '@astrojs/starlight';

import mdx from '@astrojs/mdx';

const redirectOnlyPaths = new Set([
  '/product/',
  '/products/',
  '/services/',
  '/blog/',
  '/insights/',
  '/en/product/',
  '/en/products/',
  '/en/services/',
  '/en/blog/',
  '/en/insights/',
]);

const isRedirectOnlySitemapPath = page => {
  const pathname = page.startsWith('http') ? new URL(page).pathname : page;
  const normalized = pathname.endsWith('/') ? pathname : `${pathname}/`;

  return redirectOnlyPaths.has(normalized);
};

// https://astro.build/config
export default defineConfig({
  devToolbar: {
    enabled: false,
  },
  // https://docs.astro.build/en/guides/images/#authorizing-remote-images
  site: process.env.PUBLIC_SITE_URL ?? 'https://tenantial.com',
  image: {
    domains: ['images.unsplash.com'],
  },
  prefetch: true,
  integrations: [
    sitemap({
      filter: page => !isRedirectOnlySitemapPath(page),
      i18n: {
        defaultLocale: 'de',
        locales: {
          de: 'de',
          en: 'en',
        },
      },
    }),
    starlight({
      title: 'Tenantial Docs',
      // https://github.com/withastro/starlight/blob/main/packages/starlight/CHANGELOG.md
      // If no Astro and Starlight i18n configurations are provided, the built-in default locale is used in Starlight and a matching Astro i18n configuration is generated/used.
      // If only a Starlight i18n configuration is provided, an equivalent Astro i18n configuration is generated/used.
      // If only an Astro i18n configuration is provided, the Starlight i18n configuration is updated to match it.
      // If both an Astro and Starlight i18n configurations are provided, an error is thrown.
      locales: {
        root: {
          label: 'Deutsch',
          lang: 'de',
        },
        en: {
          label: 'English',
          lang: 'en',
        },
      },
      // https://starlight.astro.build/guides/sidebar/
      sidebar: [
        {
          label: 'Evaluierungsleitfaeden',
          translations: {
            en: 'Evaluation Guides',
          },
          items: [{ autogenerate: { directory: 'guides' } }],
        },
        {
          label: 'Plattform-Notizen',
          translations: {
            en: 'Platform Notes',
          },
          items: [
            { label: 'Evidence Review', link: 'platform/evidence-review/' },
          ],
        },
      ],
      social: [],
      disable404Route: true,
      customCss: ['./src/assets/styles/starlight.css'],
      favicon: '/favicon.ico',
      components: {
        SiteTitle: './src/components/ui/starlight/SiteTitle.astro',
        Head: './src/components/ui/starlight/Head.astro',
        MobileMenuFooter:
          './src/components/ui/starlight/MobileMenuFooter.astro',
        ThemeSelect: './src/components/ui/starlight/ThemeSelect.astro',
      },
    }),
    mdx(),
  ],
  experimental: {
    clientPrerender: true,
  },
  vite: {
    plugins: [tailwindcss()],
  },
});