import { NextRequest, NextResponse } from 'next/server'
import { db } from '@/lib/db'
import { requireAuth } from '@/lib/api-auth'
import { notifyUsers } from '@/lib/notifications'

export async function PUT(
  request: NextRequest,
  { params }: { params: Promise<{ id: string }> }
) {
  try {
    const authResult = await requireAuth(['ADMIN'])(request)
    if ('error' in authResult) return authResult.error

    const { id } = await params
    const body = await request.json()
    const { supervisorId } = body

    // Verify the review exists and is not deleted
    const review = await db.review.findFirst({
      where: { id, deletedAt: null },
    })

    if (!review) {
      return NextResponse.json(
        { error: 'Reseña no encontrada' },
        { status: 404 }
      )
    }

    // If supervisorId is provided, verify it's a valid SUPERVISOR
    if (supervisorId !== null && supervisorId !== undefined) {
      const supervisor = await db.user.findUnique({
        where: { id: supervisorId },
      })

      if (!supervisor) {
        return NextResponse.json(
          { error: 'Supervisor no encontrado' },
          { status: 404 }
        )
      }

      if (supervisor.role !== 'SUPERVISOR') {
        return NextResponse.json(
          { error: 'El usuario asignado no es un supervisor' },
          { status: 400 }
        )
      }

      if (!supervisor.isActive) {
        return NextResponse.json(
          { error: 'El supervisor no está activo' },
          { status: 400 }
        )
      }
    }

    // Update the review's assigned supervisor
    const updated = await db.review.update({
      where: { id },
      data: { assignedToId: supervisorId || null },
      include: {
        customer: { select: { id: true, name: true, email: true } },
        assignedTo: { select: { id: true, name: true, email: true } },
      },
    })

    // If reassigning to a new supervisor, create a notification
    if (supervisorId) {
      await notifyUsers({
        userIds: [supervisorId],
        title: 'Reseña reasignada',
        message: `Se le ha reasignado la reseña ${review.reviewCode}: "${review.title}"`,
        type: 'REASSIGNED_REVIEW',
        reviewId: id,
      })
    }

    return NextResponse.json({ review: updated })
  } catch (error) {
    console.error('Error al reasignar reseña:', error)
    return NextResponse.json(
      { error: 'Error interno del servidor' },
      { status: 500 }
    )
  }
}