import { SockpuppetPlus } from "@cgg/sockpuppet";
import { serveDir } from "@std/http/file-server";
import { BearMetalStore } from "@bearmetal/store";

const installPath = Deno.env.get("BMP_INSTALL_DIR") || "./";

const sockpuppet = new SockpuppetPlus();
sockpuppet.addHandler((req: Request) => {
  if (new URL(req.url).pathname.startsWith("/api")) return;

  return serveDir(req, {
    fsRoot: installPath + "dist",
  });
});

sockpuppet.addHandler(async (req: Request) => {
  if (!new URL(req.url).pathname.startsWith("/api")) return;
  const store = new BearMetalStore();

  console.log("API", req.url);

  const API_DIR_ROUTE = new URLPattern({
    pathname: "/api/dir",
    search: "?list",
  });

  const match = API_DIR_ROUTE.exec(req.url);
  if (!match) return;

  switch (req.method) {
    case "GET": {
      const mcPath = store.get("mcPath") as string;
      if (mcPath) {
        for await (const file of Deno.readDir(mcPath)) {
          if (file.isDirectory && file.name.startsWith("saves")) {
            const worlds: string[] = [];
            for await (const world of Deno.readDir(mcPath + "/" + file.name)) {
              if (world.isDirectory) {
                worlds.push(world.name);
              }
            }
            return new Response(JSON.stringify({ worlds, mcPath }), {
              status: 200,
            });
          }
        }
      }
      return new Response(JSON.stringify({ mcPath }), {
        status: mcPath ? 200 : 500,
      });
    }
    case "POST": {
      const formData = await req.formData();
      const dir = formData.get("dir") as string;
      if (!dir) return new Response(null, { status: 400 });

      Deno.env.set("MC_PATH", dir);
      const mcPath = Deno.env.get("MC_PATH");
      if (!mcPath) return new Response(null, { status: 500 });

      return new Response(null, { status: 200 });
    }
    default:
      return new Response(null, { status: 405 });
  }
});