import { NextRequest, NextResponse } from 'next/server'
import { auth } from '@/auth'
import { prisma } from '@/lib/prisma'

export async function PUT(
  request: NextRequest,
  { params }: { params: Promise<{ id: string }> }
) {
  try {
    const session = await auth()
    
    if (!session?.user?.id) {
      return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })
    }

    const { id: addressId } = await params

    // Check if address belongs to user
    const existingAddress = await prisma.address.findFirst({
      where: {
        id: addressId,
        userId: session.user.id
      }
    })

    if (!existingAddress) {
      return NextResponse.json({ error: 'Address not found' }, { status: 404 })
    }

    // Unset all other default addresses for this user
    await prisma.address.updateMany({
      where: { 
        userId: session.user.id,
        isDefault: true
      },
      data: { isDefault: false }
    })

    // Set this address as default
    const address = await prisma.address.update({
      where: { id: addressId },
      data: { isDefault: true }
    })

    return NextResponse.json({ address })
  } catch (error) {
    console.error('Error setting default address:', error)
    return NextResponse.json(
      { error: 'Failed to set default address' },
      { status: 500 }
    )
  }
}