// @ts-check
import { defineConfig } from "astro/config";
import mdx from "@astrojs/mdx";
import sitemap from "@astrojs/sitemap";
import { site } from "./src/site.config.ts";

// Static output only: everything must run on a free static host.
export default defineConfig({
  site: site.url,
  output: "static",
  trailingSlash: "always",
  integrations: [mdx(), sitemap()],
  // Inline the (small) CSS into each page: removes render-blocking requests, which matters most
  // on slow phone connections. About 5 KB gzipped per page.
  build: { inlineStylesheets: "always" },
  vite: {
    build: {
      rolldownOptions: {
        onwarn(warning, warn) {
          // Astro's own content plugin adds a "use astro:head-inject" directive to every MDX
          // article on purpose; the bundler flags it as a generic directive. Harmless, so hide
          // exactly that one warning and let everything else through.
          if (
            warning.code === "MODULE_LEVEL_DIRECTIVE" &&
            warning.message.includes("astro:head-inject")
          )
            return;
          warn(warning);
        },
      },
    },
  },
});