import { NextRequest, NextResponse } from 'next/server'
import { getServerSession } from 'next-auth'
import { authOptions } from '@/lib/auth'
import { prisma } from '@/lib/prisma'
import { getBalance } from '@/lib/semaphore'

export async function GET(req: NextRequest, { params }: { params: { id: string } }) {
  const session = await getServerSession(authOptions)
  if (!session) return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })

  const client = await prisma.client.findUnique({
    where: { id: params.id },
    include: { _count: { select: { smsQueue: true, smsLogs: true } } },
  })
  if (!client) return NextResponse.json({ error: 'Not found' }, { status: 404 })

  let balance: number | null = null
  if (client.semaphoreKey) {
    balance = await getBalance(client.semaphoreKey)
  }

  return NextResponse.json({ ...client, balance })
}

export async function PATCH(req: NextRequest, { params }: { params: { id: string } }) {
  const session = await getServerSession(authOptions)
  if (!session) return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })

  const body = await req.json()
  const { name, semaphoreKey, senderName, isActive } = body

  const client = await prisma.client.update({
    where: { id: params.id },
    data: {
      ...(name !== undefined && { name }),
      ...(semaphoreKey !== undefined && { semaphoreKey }),
      ...(senderName !== undefined && { senderName }),
      ...(isActive !== undefined && { isActive }),
    },
  })

  return NextResponse.json(client)
}

export async function DELETE(req: NextRequest, { params }: { params: { id: string } }) {
  const session = await getServerSession(authOptions)
  if (!session) return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })

  await prisma.client.delete({ where: { id: params.id } })
  return NextResponse.json({ success: true })
}