import { defineConfig } from "vitepress";
import { execSync } from "node:child_process";

const host = process.env.TAURI_DEV_HOST;

const {
  IMG_ORIGIN = `https://git.polv.cc/polv/yt2press/raw/branch/${
    execSync("git branch --show-current").toString().trimEnd()
  }/docs/public`,
} = process.env;

// https://vitepress.dev/reference/site-config
export default defineConfig({
  title: "yt2press",
  description: "video to vitepress",
  themeConfig: {
    // https://vitepress.dev/reference/default-theme-config
    nav: [{ text: "Home", link: "/" }],

    sidebar: [
      {
        text: "Preview",
        // items: [
        //   { text: 'Markdown Examples', link: '/markdown-examples' },
        //   { text: 'Runtime API Examples', link: '/api-examples' }
        // ]
      },
    ],

    socialLinks: [
      { icon: "github", link: "https://git.polv.cc/polv/yt2press" },
    ],
  },
  markdown: {
    image: {
      lazyLoading: true,
    },
    config(md) {
      // production-only gate
      const isProd =
        process.env.NODE_ENV === "production" ||
        process.env.VITEPRESS_ENV === "production"; // extra safety

      if (isProd) {
        md.core.ruler.push("rewrite-image-urls", (state) => {
          if (!state.tokens) return;

          for (const token of state.tokens) {
            if (token.type !== "inline") continue;

            for (const child of token.children ?? []) {
              // images: ![alt](src)
              if (
                child.type === "image" &&
                typeof child.attrGet("src") === "string"
              ) {
                const src = child.attrGet("src");

                // rewrite only /images/* (adjust if your paths differ)
                if (src && src.startsWith("/images/")) {
                  child.attrSet("src", `${IMG_ORIGIN}${src}`);
                }
              }
            }
          }
        });
      }
    },
  },
  vite: {
    clearScreen: false,
    server: {
      // make sure this port matches the devUrl port in tauri.conf.json file
      port: 5173,
      // Tauri expects a fixed port, fail if that port is not available
      strictPort: true,
      // if the host Tauri is expecting is set, use it
      host: host || false,
      watch: {
        // tell vite to ignore watching `src-tauri`
        ignored: ["**/src-tauri/**"],
      },
      proxy: {
        "/socket": {
          target: "ws://localhost:8080",
          ws: true,
          rewriteWsOrigin: true,
        },
      },
    },
    // Env variables starting with the item of `envPrefix` will be exposed in tauri's source code through `import.meta.env`.
    envPrefix: ["VITE_", "TAURI_ENV_*"],
    build: {
      // Tauri uses Chromium on Windows and WebKit on macOS and Linux
      target:
        process.env.TAURI_ENV_PLATFORM == "windows" ? "chrome105" : "safari13",
      // don't minify for debug builds
      minify: !process.env.TAURI_ENV_DEBUG ? "esbuild" : false,
      // produce sourcemaps for debug builds
      sourcemap: !!process.env.TAURI_ENV_DEBUG,
    },
  },
});