import path from 'path';
import { fileURLToPath } from 'url';

import { defineConfig } from 'astro/config';

import tailwind from '@astrojs/tailwind';
import sitemap from '@astrojs/sitemap';
import image from '@astrojs/image';
import mdx from '@astrojs/mdx';
import partytown from '@astrojs/partytown';
import compress from 'astro-compress';

import { remarkReadingTime } from './src/utils/frontmatter.mjs';
import { SITE } from './src/config.mjs';

const __dirname = path.dirname(fileURLToPath(import.meta.url));

const whenExternalScripts = (items = []) =>
  SITE.googleAnalyticsId ? (Array.isArray(items) ? items.map((item) => item()) : [items()]) : [];

export default defineConfig({
  site: SITE.origin,
  base: SITE.basePathname,
  trailingSlash: SITE.trailingSlash ? 'always' : 'never',

  output: 'static',

  integrations: [
    tailwind({
      config: {
        applyBaseStyles: false,
      },
    }),
    sitemap(),
    image({
      serviceEntryPoint: '@astrojs/image/sharp',
    }),
    mdx(),

    ...whenExternalScripts(() =>
      partytown({
        config: { forward: ['dataLayer.push'] },
      })
    ),

    compress({
      css: true,
      html: true,
      img: true,
      js: true,
      svg: true,

      logger: 1,
    }),
  ],

  markdown: {
    remarkPlugins: [remarkReadingTime],
    extendDefaultPlugins: true,
  },

  vite: {
    resolve: {
      alias: {
        '~': path.resolve(__dirname, './src'),
      },
    },
  },

  experimental: {
    contentCollections: true,
  },
});