import { NextRequest, NextResponse } from 'next/server'
import bcrypt from 'bcryptjs'
import { getDatabase } from '../../../../lib/database/index'

export async function POST(request: NextRequest) {
  try {
    const db = await getDatabase()
    const { email, password, firstName, lastName, phone } = await request.json()

    if (!email || !password || !firstName || !lastName) {
      return NextResponse.json(
        { error: 'Missing required fields' },
        { status: 400 }
      )
    }

    const existingUser = await db.getUserByEmail(email)

    if (existingUser) {
      return NextResponse.json(
        { error: 'User already exists' },
        { status: 409 }
      )
    }

    const hashedPassword = await bcrypt.hash(password, 10)

    const newUser = await db.createUser({
      email,
      firstName,
      lastName,
      password: hashedPassword,
      phone,
      role: 'client'
    })

    const newClient = await db.createClient({
      userId: newUser.id,
      membershipType: 'basic',
      membershipStatus: 'active',
      joinDate: new Date()
    })

    const { password: _, ...userWithoutPassword } = newUser

    return NextResponse.json(
      { 
        message: 'User registered successfully',
        user: { ...userWithoutPassword, client: newClient }
      },
      { status: 201 }
    )
  } catch (error) {
    console.error('Registration error:', error)
    return NextResponse.json(
      { error: 'Internal server error' },
      { status: 500 }
    )
  }
}

export async function GET() {
  try {
    const db = await getDatabase()
    const allUsers = await db.getAllUsers()
    const usersWithoutPassword = allUsers.map(({ password: _, ...user }) => user)
    return NextResponse.json({ users: usersWithoutPassword })
  } catch (error) {
    console.error('Get users error:', error)
    return NextResponse.json(
      { error: 'Internal server error' },
      { status: 500 }
    )
  }
}