AirGPU/main.js at main · SOMASEKAR17/AirGPU · GitHub

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const { app, BrowserWindow, ipcMain, shell } = require("electron");
const path = require("path");
const fs = require("fs");
const { spawn, exec } = require("child_process");
const http = require("http");
const crypto = require("crypto");

function findPython() {
  const base = __dirname;
  const win = path.join(base, ".venv", "Scripts", "python.exe");
  if (fs.existsSync(win)) return win;
  const unix = path.join(base, ".venv", "bin", "python");
  if (fs.existsSync(unix)) return unix;
  const winEnv = path.join(base, "env", "Scripts", "python.exe");
  if (fs.existsSync(winEnv)) return winEnv;
  const unixEnv = path.join(base, "env", "bin", "python");
  if (fs.existsSync(unixEnv)) return unixEnv;
  return "python";
}

let mainWindow = null;
let agentProcess = null;
let currentAuthToken = null;
let currentUser = null;

function createWindow() {
  mainWindow = new BrowserWindow({
    width: 1100,
    height: 740,
    minWidth: 900,
    minHeight: 600,
    backgroundColor: "#FFFFFF",
    frame: false,
    titleBarStyle: "hidden",
    webPreferences: {
      nodeIntegration: true,
      contextIsolation: false,
    },
  });
  mainWindow.loadFile(path.join(__dirname, "renderer", "login.html"));
}

ipcMain.on("navigate", (_event, page) => {
  mainWindow.loadFile(path.join(__dirname, "renderer", page));
});

ipcMain.on("go-home", () => {
  killAgent();
  mainWindow.loadFile(path.join(__dirname, "renderer", "index.html"));
});

ipcMain.on("window-minimize", () => mainWindow.minimize());
ipcMain.on("window-maximize", () => {
  mainWindow.isMaximized() ? mainWindow.unmaximize() : mainWindow.maximize();
});
ipcMain.on("window-close", () => mainWindow.close());

ipcMain.handle("set-auth-token", (event, token) => { currentAuthToken = token; });
ipcMain.handle("get-auth-token", () => currentAuthToken);
ipcMain.handle("set-user", (event, user) => { currentUser = user; });
ipcMain.handle("get-user", () => currentUser);
ipcMain.handle("logout", () => {
  currentAuthToken = null;
  currentUser = null;
  mainWindow.loadFile(path.join(__dirname, "renderer", "login.html"));
});

const CREDITS_PAGE_URL = "PLACEHOLDER_URL";
const IS_PROD = (process.env.IS_PROD === 'true');
const coordinatorHost = IS_PROD ? 'airgpu.onrender.com' : 'localhost';
const coordinatorPort = IS_PROD ? '' : '8000';
const protocol = IS_PROD ? 'https' : 'http';

ipcMain.handle('open-credits-page', () => {
    shell.openExternal(CREDITS_PAGE_URL);
});

ipcMain.handle('get-coordinator-base', () => {
    return `${protocol}://${coordinatorHost}${coordinatorPort ? `:${coordinatorPort}` : ''}`;
});

ipcMain.handle('update-credit-display', (event, balance) => {
    if (mainWindow) {
        mainWindow.webContents.send('credit-update', balance);
    }
});

ipcMain.handle("start-google-auth", async () => {
  return new Promise((resolve, reject) => {
    let server = http.createServer((req, res) => {
      const url = new URL(req.url, "http://localhost:9876");

      if (url.pathname === "/" || url.pathname === "/auth-page") {
        res.writeHead(200, { "Content-Type": "text/html" });
        res.end(`
<!DOCTYPE html>
<html>
<head>
    <title>AirGPU \u2014 Authenticating</title>
    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500&family=Playfair+Display:wght@600&display=swap" rel="stylesheet">
    <style>
        :root {
            --bg: #FDFCF8;
            --text: #1A1A1A;
            --slate: #4A4A4A;
        }
        body {
            background: var(--bg); color: var(--text);
            font-family: 'Inter', sans-serif;
            display: flex; align-items: center; justify-content: center;
            height: 100vh; margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        .container { text-align: center; max-width: 400px; animation: fadeIn 0.8s ease; }
        h1 { font-family: 'Playfair Display', serif; font-size: 32px; margin-bottom: 12px; font-weight: 600; }
        .loader {
            width: 40px; height: 2px;
            background: rgba(0,0,0,0.05);
            margin: 24px auto; position: relative; overflow: hidden;
        }
        .loader-bar {
            position: absolute; width: 50%; height: 100%;
            background: var(--text);
            animation: loading 1.5s infinite ease-in-out;
        }
        @keyframes loading { 0% { left: -50%; } 100% { left: 100%; } }
        @keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
        p { color: var(--slate); font-size: 14px; letter-spacing: 0.01em; }
        #action-btn {
            display: none; margin-top: 20px; padding: 12px 24px;
            background: var(--text); color: white; border: none;
            border-radius: 4px; cursor: pointer; font-family: 'Inter';
            font-size: 14px;
        }
        #action-btn:hover { opacity: 0.85; }
    </style>
</head>
<body>
    <div class="container">
        <h1>AirGPU</h1>
        <div class="loader"><div class="loader-bar"></div></div>
        <p id="status">Verifying session...</p>
        <button id="action-btn"></button>
    </div>

    <script type="module">
        import { initializeApp } from 'https://www.gstatic.com/firebasejs/10.7.1/firebase-app.js';
        import { getAuth, signInWithPopup, GoogleAuthProvider, onAuthStateChanged } from 'https://www.gstatic.com/firebasejs/10.7.1/firebase-auth.js';

        const firebaseConfig = {
            apiKey: "AIzaSyCI_KpsrIMHGdmeZ_SRBYtpE6JLzE4yTPg",
            authDomain: "airgpu-928f3.firebaseapp.com",
            projectId: "airgpu-928f3",
            storageBucket: "airgpu-928f3.firebasestorage.app",
            messagingSenderId: "450670816358",
            appId: "1:450670816358:web:6d4679efa0a458a680d1a7"
        };

        const firebaseApp = initializeApp(firebaseConfig);
        const auth = getAuth(firebaseApp);
        const provider = new GoogleAuthProvider();
        const status = document.getElementById('status');
        const actionBtn = document.getElementById('action-btn');

        async function sendTokenAndClose(user) {
            const token = await user.getIdToken();
            const params = new URLSearchParams({
                token,
                displayName: user.displayName || '',
                email: user.email || '',
                photoURL: user.photoURL || ''
            });
            await fetch('/callback?' + params.toString());
            window.close();
        }

        async function doPopupLogin() {
            actionBtn.style.display = 'none';
            status.innerText = 'Opening Google sign-in...';
            try {
                const result = await signInWithPopup(auth, provider);
                status.innerText = 'Identity confirmed. Returning to app...';
                await sendTokenAndClose(result.user);
            } catch (e) {
                console.error("Auth Error:", e);
                status.innerHTML = '<span style="color:#bc4749">Sign-in failed or was cancelled.</span>';
                actionBtn.style.display = 'inline-block';
                actionBtn.innerText = 'Try Again';
                actionBtn.onclick = () => doPopupLogin();
            }
        }

        async function handleAuth() {
            try {
                const user = await new Promise((resolve) => {
                    const unsub = onAuthStateChanged(auth, (u) => {
                        unsub();
                        resolve(u);
                    });
                });

                if (user) {
                    status.innerText = 'Session found. Returning to app...';
                    await sendTokenAndClose(user);
                    return;
                }

                status.innerText = 'Sign in to continue.';
                actionBtn.style.display = 'inline-block';
                actionBtn.innerText = 'Sign in with Google';
                actionBtn.onclick = () => doPopupLogin();

            } catch (e) {
                console.error("Auth Error:", e);
                status.innerHTML = '<span style="color:#bc4749">Something went wrong.</span>';
                actionBtn.style.display = 'inline-block';
                actionBtn.innerText = 'Try Again';
                actionBtn.onclick = () => doPopupLogin();
            }
        }

        handleAuth();
    </script>
</body>
</html>
`);
        return;
      }

      if (url.pathname === "/callback") {
        const token = url.searchParams.get("token");
        const displayName = url.searchParams.get("displayName") || "";
        const email = url.searchParams.get("email") || "";
        const photoURL = url.searchParams.get("photoURL") || "";

        res.writeHead(200, { "Content-Type": "text/html" });
        res.end(`
<!DOCTYPE html>
<html>
<head>
    <title>AirGPU \u2014 Authenticated</title>
    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500&family=Playfair+Display:wght@600&display=swap" rel="stylesheet">
    <style>
        :root { --bg: #FDFCF8; --text: #1A1A1A; --slate: #4A4A4A; }
        body {
            background: var(--bg); color: var(--text);
            font-family: 'Inter', sans-serif;
            display: flex; align-items: center; justify-content: center;
            height: 100vh; margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        .container { text-align: center; max-width: 400px; animation: fadeIn 0.6s ease; }
        h1 { font-family: 'Playfair Display', serif; font-size: 32px; margin-bottom: 12px; }
        .check { font-size: 40px; margin-bottom: 16px; }
        p { color: var(--slate); font-size: 14px; }
        @keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
    </style>
</head>
<body>
    <div class="container">
        <div class="check">✓</div>
        <h1>AirGPU</h1>
        <p>Login successful — you can close this tab.</p>
    </div>
    <script>
        setTimeout(() => window.close(), 1500);
    </script>
</body>
</html>
`);

        currentAuthToken = token;
        currentUser = { displayName, email, photoURL };
        resolve({ token, displayName, email, photoURL });
        setTimeout(() => server.close(), 500);
      }
    });

    server.listen(9876, () => {
      shell.openExternal("http://localhost:9876/auth-page");
    });

    server.on("error", (err) => {
      if (err.code === "EADDRINUSE") {
        reject(new Error("Auth server port 9876 is busy \u2014 close other apps and retry"));
      } else {
        reject(err);
      }
    });
  });
});

ipcMain.handle("get-gpu-stats", async () => {
  return new Promise((resolve) => {
    exec(
      "nvidia-smi --query-gpu=name,memory.total,memory.free,utilization.gpu --format=csv,noheader,nounits",
      (error, stdout) => {
        if (error || !stdout.trim()) { resolve(null); return; }
        const parts = stdout.trim().split(",").map((s) => s.trim());
        resolve({
          name: parts[0],
          vramTotal: parseInt(parts[1]),
          vramFree: parseInt(parts[2]),
          utilization: parseInt(parts[3]),
        });
      }
    );
  });
});

ipcMain.handle("check-gpu", async () => {
  return new Promise((resolve) => {
    exec("nvidia-smi --query-gpu=name,memory.total --format=csv,noheader,nounits", (err, stdout) => {
      if (err) { resolve({ hasGpu: false }); return; }
      const parts = stdout.trim().split(",");
      if (parts.length >= 2) {
        resolve({ hasGpu: true, gpuName: parts[0].trim(), vramTotalMb: parseInt(parts[1].trim(), 10) });
      } else {
        resolve({ hasGpu: false });
      }
    });
  });
});

ipcMain.on("start-agent", (event, { maxCpus = 2, maxRamGb = 4, maxGpuVramMb = 0, authToken = "" } = {}) => {
  if (agentProcess) return;

  const pythonExe = findPython();
  const agentPath = path.join(__dirname, "agent.py");
  console.log(`[main] using python: ${pythonExe}`);

  agentProcess = spawn(pythonExe, ["-u", agentPath], {
    stdio: ["pipe", "pipe", "pipe"],
    env: {
      ...process.env,
      CONTRIB_MAX_CPUS: maxCpus.toString(),
      CONTRIB_MAX_RAM_GB: maxRamGb.toString(),
      CONTRIB_MAX_GPU_VRAM_MB: maxGpuVramMb.toString(),
      CONTRIB_AUTH_TOKEN: authToken,
    },
  });

  agentProcess.stdout.on("data", (data) => {
    data.toString().split("\n").filter(Boolean).forEach((line) => {
      console.log(`[agent stdout] ${line}`);
      if (mainWindow && !mainWindow.isDestroyed()) mainWindow.webContents.send("agent-log", line);
    });
  });

  agentProcess.stderr.on("data", (data) => {
    data.toString().split("\n").filter(Boolean).forEach((line) => {
      console.error(`[agent stderr] ${line}`);
      if (mainWindow && !mainWindow.isDestroyed()) mainWindow.webContents.send("agent-log", `[stderr] ${line}`);
    });
  });

  agentProcess.on("error", (err) => console.error(`[main] agent error:`, err));
  agentProcess.on("exit", (code, signal) => console.log(`[main] agent exited with code ${code} and signal ${signal}`));
  agentProcess.on("close", (code, signal) => {
    console.log(`[main] agent closed with code ${code} and signal ${signal}`);
    agentProcess = null;
    if (mainWindow && !mainWindow.isDestroyed()) mainWindow.webContents.send("agent-stopped");
  });
});

function killAgent() {
  if (agentProcess) { agentProcess.kill(); agentProcess = null; }
}

ipcMain.on("stop-agent", killAgent);

app.whenReady().then(createWindow);
app.on("window-all-closed", () => { killAgent(); app.quit(); });
app.on("before-quit", killAgent);