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import { createSite, runWatch } from "./utils.ts";import { brightGreen, dim } from "../deps/colors.ts";import runServe from "./serve.ts";
interface Options {  root: string;  config?: string;  serve: boolean;  watch: boolean;  experimental: boolean;}
/** Build the website and optionally watch changes and serve the site */export default async function build(  { root, config, serve, watch, experimental }: Options,) {  if (experimental) {    if (!serve && !watch) {      console.warn("Experimental mode requires either --serve or --watch");      return;    }    runExperimentalWatcher(serve, root, config);    return;  }
  const site = await createSite(root, config);  const quiet = site.options.quiet;
  if (!quiet) {    console.log();  }
  await site.build();
  if (!quiet) {    console.log();    console.log(      `🍾 ${brightGreen("Site built into")} ${dim(site.options.dest)}`,    );  }
  if (!serve && !watch) {    return;  }
  // Start the watcher  runWatch({    root: site.src(),    ignore: site.options.watcher.ignore,    debounce: site.options.watcher.debounce,    fn: (files) => {      console.log();      console.log("Changes detected:");      files.forEach((file) => console.log("-", dim(file)));      console.log();      return site.update(files);    },  });
  // Start the local server  if (serve) {    await runServe(site.dest(), site.options.server);  }}
/** Build the site using a Worker so it can reload the modules */function runExperimentalWatcher(  initServer: boolean,  root: string,  config?: string,) {  const url = new URL("watch.ts", import.meta.url);  let serving = false;
  function init() {    const work = new Worker(url, {      type: "module",      deno: true,    });
    // Start watching    work.postMessage({ root, config });
    // Listen for messages    work.onmessage = (event) => {      const { type } = event.data;
      // Init the local server      if (type === "built") {        if (serving || !initServer) {          return;        }
        const { root, options } = event.data;        runServe(root, options);        serving = true;        return;      }
      // Reload the worker      if (type === "reload") {        work.terminate();        init();      }    };  }
  init();}