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import { checkUpgrade, createSite } from "./utils.ts";import { brightGreen, dim } from "../deps/colors.ts";import Server from "../core/server.ts";import FSWatcher, { SiteWatcher } from "../core/watcher.ts";import { printError } from "../core/errors.ts";import logger from "../middlewares/logger.ts";import noCache from "../middlewares/no_cache.ts";import notFound from "../middlewares/not_found.ts";import reload from "../middlewares/reload.ts";
interface Options {  root: string;  config?: string;  serve?: boolean;  watch?: boolean;}
export default function ({ root, config, serve, watch }: Options) {  return build(root, config, serve, watch);}
/** Build the website and optionally watch changes and serve the site */export async function build(  root: string,  config: string | undefined,  serve?: boolean,  watch?: boolean,) {  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")} ${dim(site.options.dest)}`,    );
    await checkUpgrade();  }
  if (!serve && !watch) {    return;  }
  // Start the watcher  const watcher = new FSWatcher({    root: site.src(),    ignore: site.options.watcher.ignore,    debounce: site.options.watcher.debounce,  });
  watcher.addEventListener("change", (event) => {    const files = event.files!;
    console.log();    console.log("Changes detected:");    files.forEach((file) => console.log("-", dim(file)));    console.log();    return site.update(files);  });
  watcher.addEventListener("error", (event) => {    printError(event.error!);  });
  watcher.start();
  if (!serve) {    return;  }
  // Start the local server  const { port, open, page404, middlewares } = site.options.server;  const server = new Server({ root: site.dest(), port });
  server.addEventListener("start", () => {    const ipAddr = localIp();
    console.log();    console.log("  Server started at:");    console.log(brightGreen(`  http://localhost:${port}/`), "(local)");
    if (ipAddr) {      console.log(brightGreen(`  http://${ipAddr}:${port}/`), "(network)");    }
    console.log();
    if (open) {      const commands = {        darwin: "open",        linux: "xdg-open",        windows: "explorer",      };
      Deno.run({ cmd: [commands[Deno.build.os], `http://localhost:${port}/`] });    }
    site.dispatchEvent({ type: "afterStartServer" });  });
  server.use(    logger(),    reload({ watcher: new SiteWatcher(site) }),    noCache(),    notFound({      root: site.dest(),      page404,      directoryIndex: true,    }),  );
  if (middlewares) {    server.use(...middlewares);  }
  await server.start();}
function localIp(): string | undefined {  for (const info of Deno.networkInterfaces()) {    if (info.family !== "IPv4" || info.address.startsWith("127.")) {      continue;    }
    return info.address;  }}