import { proxy } from "https://deno.land/x/oak_http_proxy@2.1.0/mod.ts";
import { fileExists } from "./lib/fileExists.ts";
import { Application, Context, Router } from "oak";
import { path } from "https://deno.land/x/compress@v0.4.1/deps.ts";
const app = new Application();


for await (const dirEntry of Deno.readDir(Deno.cwd())) {
  if (!(dirEntry.isDirectory && dirEntry.name.includes('-service'))) continue;
  const filename = dirEntry.name + '/main.ts';
  const permfile = dirEntry.name + '/perms';
  const prefixfile = dirEntry.name + '/prefix';
  const portfile = dirEntry.name + '/port';
  if (!(await fileExists(filename))) continue;
  if (!(await fileExists(prefixfile))) continue;

  const perms = (await fileExists(permfile)) ? await Deno.readTextFileSync(permfile).split('\n') : []
  // successful, file or directory must exist
  const port = await Deno.readTextFile(portfile);
  const p = new Deno.Command(Deno.execPath(), {
    args: [
      'run',
      ...perms,
      filename,
      port
    ]
  }).spawn()

  const prefix = Deno.readTextFileSync(prefixfile);
  const routes = new Router()
  .all(`/${prefix}/(.*)`, proxy((ctx: Context) => `http://localhost:${port}${ctx.request.url.pathname}`, {}))
  
  app.use(routes.allowedMethods());
  app.use(routes.routes());

}

app.listen({
  port: 3000
})