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

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

    const artist = await prisma.artist.findUnique({
      where: { id },
      include: {
        user: {
          select: {
            email: true,
            username: true,
            displayName: true,
          },
        },
        label: {
          select: {
            id: true,
            name: true,
            slug: true,
          },
        },
        _count: {
          select: {
            songs: true,
            albums: true,
          },
        },
      },
    })

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

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

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

    if (artist.id !== id) {
      return NextResponse.json({ error: 'Unauthorized' }, { status: 403 })
    }

    const body = await request.json()
    const { name, bio, website, twitter, instagram, spotify, avatarUrl, bannerUrl } = body

    const updateData: any = {}
    if (name !== undefined) {
      updateData.name = name
      updateData.slug = slugify(name)
    }
    if (bio !== undefined) updateData.bio = bio
    if (website !== undefined) updateData.website = website
    if (twitter !== undefined) updateData.twitter = twitter
    if (instagram !== undefined) updateData.instagram = instagram
    if (spotify !== undefined) updateData.spotify = spotify
    if (avatarUrl !== undefined) updateData.avatarUrl = avatarUrl
    if (bannerUrl !== undefined) updateData.bannerUrl = bannerUrl

    const updatedArtist = await prisma.artist.update({
      where: { id },
      data: updateData,
      include: {
        user: {
          select: {
            email: true,
            username: true,
            displayName: true,
          },
        },
        label: {
          select: {
            id: true,
            name: true,
            slug: true,
          },
        },
      },
    })

    return NextResponse.json(updatedArtist)
  } catch (error) {
    if (error instanceof Error && error.message === 'Unauthorized') {
      return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })
    }
    if (error instanceof Error && error.message === 'Artist profile required') {
      return NextResponse.json({ error: 'Artist profile required' }, { status: 403 })
    }
    console.error('Error updating artist:', error)
    return NextResponse.json({ error: 'Failed to update artist' }, { status: 500 })
  }
}