const { spawn } = require("child_process");
const http = require("http");
const path = require("path");
const electronPath = require("electron");
const vitePath = path.join(path.dirname(require.resolve("vite/package.json")), "bin", "vite.js");

const port = process.env.VITE_PORT || "5173";
const devUrl = `http://127.0.0.1:${port}`;

function electronEnv(extra = {}) {
  const env = { ...process.env, ...extra };
  delete env.ELECTRON_RUN_AS_NODE;
  return env;
}

const vite = spawn(process.execPath, [vitePath, "--host", "127.0.0.1", "--port", port], {
  stdio: "inherit",
  env: { ...process.env, BROWSER: "none" }
});

function waitForServer(url, retries = 90) {
  return new Promise((resolve, reject) => {
    const attempt = () => {
      const request = http.get(url, (response) => {
        response.resume();
        resolve();
      });

      request.on("error", () => {
        if (retries <= 0) {
          reject(new Error(`Vite did not start at ${url}`));
          return;
        }

        retries -= 1;
        setTimeout(attempt, 300);
      });
    };

    attempt();
  });
}

let electron;

waitForServer(devUrl)
  .then(() => {
    electron = spawn(electronPath, ["."], {
      stdio: "inherit",
      env: electronEnv({ VITE_DEV_SERVER_URL: devUrl })
    });

    electron.on("exit", (code) => {
      vite.kill();
      process.exit(code ?? 0);
    });
  })
  .catch((error) => {
    console.error(error);
    vite.kill();
    process.exit(1);
  });

process.on("SIGINT", () => {
  if (electron) electron.kill();
  vite.kill();
  process.exit(0);
});