astro.config.mjs

import sitemap from '@astrojs/sitemap';
import svelte from "@astrojs/svelte"
import tailwind from "@astrojs/tailwind"
import swup from '@swup/astro';
import Compress from "astro-compress"
import icon from "astro-icon"
import { defineConfig } from "astro/config"
import Color from "colorjs.io"
import rehypeAutolinkHeadings from "rehype-autolink-headings"
import rehypeComponents from "rehype-components"; /* Render the custom directive content */
import rehypeKatex from "rehype-katex"
import rehypeSlug from "rehype-slug"
import remarkDirective from "remark-directive" /* Handle directives */
import remarkGithubAdmonitionsToDirectives from "remark-github-admonitions-to-directives";
import remarkMath from "remark-math"
import { AdmonitionComponent } from "./src/plugins/rehype-component-admonition.mjs"
import { GithubCardComponent } from "./src/plugins/rehype-component-github-card.mjs"
import {parseDirectiveNode} from "./src/plugins/remark-directive-rehype.js";
import { remarkReadingTime } from "./src/plugins/remark-reading-time.mjs"
import {remarkExcerpt} from "./src/plugins/remark-excerpt.js";

const oklchToHex = (str) => {
  const DEFAULT_HUE = 250
  const regex = /-?\d+(\.\d+)?/g
  const matches = str.string.match(regex)
  const lch = [matches[0], matches[1], DEFAULT_HUE]
  return new Color("oklch", lch).to("srgb").toString({
    format: "hex",
  })
}

// https://astro.build/config
export default defineConfig({
  site: "https://jamestang.space/",
  base: "/",
  trailingSlash: "always",
  integrations: [
    tailwind(),
    swup({
      theme: false,
      animationClass: 'transition-swup-',   // see https://swup.js.org/options/#animationselector
                                            // the default value `transition-` cause transition delay
                                            // when the Tailwind class `transition-all` is used
      containers: ['main'],
      smoothScrolling: true,
      cache: true,
      preload: true,
      accessibility: true,
      updateHead: true,
      updateBodyClass: false,
      globalInstance: true,
    }),
    icon({
      include: {
        "material-symbols": ["*"],
        "fa6-brands": ["*"],
        "fa6-regular": ["*"],
        "fa6-solid": ["*"],
      },
    }),
    svelte(),
    sitemap(),
    Compress({
      CSS: false,
      Image: false,
      Action: {
        Passed: async () => true,   // https://github.com/PlayForm/Compress/issues/376
      },
    }),
  ],
  markdown: {
    remarkPlugins: [remarkMath, remarkReadingTime, remarkExcerpt, remarkGithubAdmonitionsToDirectives, remarkDirective, parseDirectiveNode],
    rehypePlugins: [
      rehypeKatex,
      rehypeSlug,
      [rehypeComponents, {
        components: {
          github: GithubCardComponent,
          note: (x, y) => AdmonitionComponent(x, y, "note"),
          tip: (x, y) => AdmonitionComponent(x, y, "tip"),
          important: (x, y) => AdmonitionComponent(x, y, "important"),
          caution: (x, y) => AdmonitionComponent(x, y, "caution"),
          warning: (x, y) => AdmonitionComponent(x, y, "warning"),
        },
      }],
      [
        rehypeAutolinkHeadings,
        {
          behavior: "append",
          properties: {
            className: ["anchor"],
          },
          content: {
            type: "element",
            tagName: "span",
            properties: {
              className: ["anchor-icon"],
              'data-pagefind-ignore': true,
            },
            children: [
              {
                type: "text",
                value: "#",
              },
            ],
          },
        },
      ],
    ],
  },
  vite: {
    build: {
      rollupOptions: {
        onwarn(warning, warn) {
          // temporarily suppress this warning
          if (warning.message.includes("is dynamically imported by") && warning.message.includes("but also statically imported by")) {
            return;
          }
          warn(warning);
        }
      }
    },
    css: {
      preprocessorOptions: {
        stylus: {
          define: {
            oklchToHex: oklchToHex,
          },
        },
      },
    },
  },
})