import { PrismaClient, UserRole, UserStatus, AuthProvider } from '@prisma/client';
import { PrismaPg } from '@prisma/adapter-pg';
import { Pool } from 'pg';
import * as argon2 from 'argon2';

async function main() {
  const connectionString = process.env.DATABASE_URL;
  const pool = new Pool({ connectionString });
  const adapter = new PrismaPg(pool);

  const prisma = new PrismaClient({ adapter });

  console.log('🌱 Starting database seeding...\n');

  // =============================================
  // Seed Agent Types
  // =============================================
  console.log('📋 Seeding Agent Types...');

  const agentTypes = [
    {
      name: 'Professional',
      description: 'Licensed real estate professionals',
      icon: 'briefcase',
      sortOrder: 1,
    },
    {
      name: 'Lender',
      description: 'Mortgage and loan specialists',
      icon: 'bank',
      sortOrder: 2,
    },
  ];

  for (const agentType of agentTypes) {
    const existing = await prisma.agentType.findUnique({
      where: { name: agentType.name },
    });

    if (existing) {
      console.log(`   ⚠️  Agent type "${agentType.name}" already exists`);
    } else {
      await prisma.agentType.create({
        data: agentType,
      });
      console.log(`   ✅ Created agent type: ${agentType.name}`);
    }
  }

  console.log('');

  // =============================================
  // Seed Admin User
  // =============================================
  console.log('👤 Seeding Admin User...');

  const adminEmail = process.env.ADMIN_EMAIL || 'admin@realestate.com';
  const adminPassword = process.env.ADMIN_PASSWORD || 'Admin@123456';

  // Hash password with Argon2 (more secure than bcrypt)
  const hashedPassword = await argon2.hash(adminPassword);

  // Check if admin already exists
  const existingAdmin = await prisma.user.findUnique({
    where: { email: adminEmail },
  });

  if (existingAdmin) {
    console.log(`   ⚠️  Admin user already exists: ${adminEmail}`);
  } else {
    // Create admin user
    const admin = await prisma.user.create({
      data: {
        email: adminEmail,
        password: hashedPassword,
        role: UserRole.ADMIN,
        status: UserStatus.ACTIVE,
        emailVerified: true,
        emailVerifiedAt: new Date(),
        authProvider: AuthProvider.LOCAL,
      },
    });

    console.log('   ✅ Admin user created successfully!');
    console.log('   ───────────────────────────────');
    console.log(`   📧 Email:    ${adminEmail}`);
    console.log(`   🔑 Password: ${adminPassword}`);
    console.log(`   👤 Role:     ${admin.role}`);
    console.log(`   🆔 ID:       ${admin.id}`);
    console.log('   ───────────────────────────────\n');
  }

  // =============================================
  // Summary
  // =============================================
  const userCount = await prisma.user.count();
  const adminCount = await prisma.user.count({ where: { role: UserRole.ADMIN } });
  const agentTypeCount = await prisma.agentType.count();

  console.log('📊 Database Summary:');
  console.log(`   Total Users:       ${userCount}`);
  console.log(`   Admins:            ${adminCount}`);
  console.log(`   Agent Types:       ${agentTypeCount}`);
  console.log('\n🌱 Seeding completed!\n');

  await prisma.$disconnect();
  await pool.end();
}

main()
  .catch((e) => {
    console.error('❌ Seeding failed:', e);
    process.exit(1);
  });