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

export async function GET(
  request: NextRequest,
  { params }: { params: Promise<{ id: string }> }
) {
  try {
    const { id } = await params

    // Verify label exists
    const label = await prisma.label.findUnique({
      where: { id },
      select: { id: true },
    })

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

    // Get artist count
    const artistCount = await prisma.artist.count({
      where: { labelId: id },
    })

    // Get artists' song and album counts and total plays
    const artists = await prisma.artist.findMany({
      where: { labelId: id },
      select: { id: true },
    })

    const artistIds = artists.map(a => a.id)

    const songCount = await prisma.song.count({
      where: { artistId: { in: artistIds } },
    })

    const albumCount = await prisma.album.count({
      where: { artistId: { in: artistIds } },
    })

    const songs = await prisma.song.findMany({
      where: { artistId: { in: artistIds } },
      select: { playCount: true },
    })

    const totalPlays = songs.reduce((sum, song) => sum + song.playCount, 0)

    const stats = {
      artistCount,
      songCount,
      albumCount,
      totalPlays,
    }

    return NextResponse.json(stats)
  } catch (error) {
    console.error('Error fetching label stats:', error)
    return NextResponse.json({ error: 'Failed to fetch label stats' }, { status: 500 })
  }
}