import Koa from "koa";
import { createServer } from "node:http";
import type { AddressInfo } from "node:net";
import { apirouter } from "../../src/webapi/apirouter.js";
import type { BackendDbInterface } from "../../src/db/types/DbInterface.js";

export interface TestServer {
  url: string;
  close(): Promise<void>;
}

export async function createTestServer(
  db: BackendDbInterface,
): Promise<TestServer> {
  const app = new Koa();
  const router = apirouter(db);
  app.use(router.routes());
  app.use(router.allowedMethods());
  const server = createServer(app.callback());
  await new Promise<void>((resolve) => server.listen(0, "127.0.0.1", resolve));
  const { port } = server.address() as AddressInfo;
  return {
    url: `http://127.0.0.1:${port}`,
    close: () =>
      new Promise<void>((resolve, reject) =>
        server.close((err) => (err ? reject(err) : resolve())),
      ),
  };
}