gmail-to-exchange365/src/cli.ts

Complete Gmail to Exchange 365 migration tool with UI - Migrate emails, attachments, and folders seamlessly

#!/usr/bin/env node

import dotenv from "dotenv";
import { existsSync, writeFileSync } from "fs";
import { join } from "path";
import app from "./server/app";

// Load environment variables
dotenv.config();

const PORT = process.env.PORT || 3000;

// Check if .env exists, if not, create a template
const envPath = join(process.cwd(), ".env");
if (!existsSync(envPath)) {
  console.log("📝 Creating .env file template...");
  const envTemplate = `# Google OAuth Credentials
GOOGLE_CLIENT_ID=your_google_client_id_here
GOOGLE_CLIENT_SECRET=your_google_client_secret_here
GOOGLE_REDIRECT=http://localhost:${PORT}/google/callback

# Microsoft OAuth Credentials
MS_CLIENT_ID=your_ms_client_id_here
MS_CLIENT_SECRET=your_ms_client_secret_here
MS_TENANT_ID=common
MS_REDIRECT=http://localhost:${PORT}/ms/callback

# Session Configuration
SESSION_SECRET=${generateRandomSecret()}

# Server Configuration
PORT=${PORT}
`;
  writeFileSync(envPath, envTemplate);
  console.log("✅ Created .env file. Please fill in your OAuth credentials.");
  console.log("📖 See SETUP.md or README.md for instructions on getting OAuth credentials.");
  console.log("");
}

// Validate required environment variables
const requiredEnvVars = [
  "GOOGLE_CLIENT_ID",
  "GOOGLE_CLIENT_SECRET",
  "MS_CLIENT_ID",
  "MS_CLIENT_SECRET"
];

const env = dotenv.config().parsed || {};
const missingVars = requiredEnvVars.filter(varName => {
  const value = env[varName] || process.env[varName];
  return !value || value.includes("your_") || value.includes("_here");
});

if (missingVars.length > 0) {
  console.log("⚠️  Missing or incomplete OAuth credentials in .env file:");
  missingVars.forEach(varName => console.log(`   - ${varName}`));
  console.log("");
  console.log("📖 Please:");
  console.log("   1. Edit the .env file with your OAuth credentials");
  console.log("   2. See SETUP.md or README.md for detailed setup instructions");
  console.log("");
  console.log("🔗 Quick links:");
  console.log("   - Google: https://console.cloud.google.com/");
  console.log("   - Microsoft: https://portal.azure.com/");
  console.log("");
  process.exit(1);
}

// Start server
console.log("🚀 Starting Gmail → Exchange 365 Migrator...");
console.log(`📧 Server running on http://localhost:${PORT}`);
console.log(`🌐 Open your browser and navigate to: http://localhost:${PORT}`);
console.log("");

app.listen(PORT, () => {
  console.log("✅ Ready to migrate emails!");
  console.log("");
  console.log("📋 Next steps:");
  console.log("   1. Connect your Google account");
  console.log("   2. Connect your Microsoft account");
  console.log("   3. Start the migration");
  console.log("");
  console.log("Press Ctrl+C to stop the server");
});

function generateRandomSecret(): string {
  const chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
  let result = "";
  for (let i = 0; i < 32; i++) {
    result += chars.charAt(Math.floor(Math.random() * chars.length));
  }
  return result;
}