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

export async function GET(request: NextRequest) {
  try {
    const { searchParams } = new URL(request.url)
    const query = searchParams.get('q')
    const limit = parseInt(searchParams.get('limit') || '20')

    if (!query || query.trim().length === 0) {
      return NextResponse.json({ error: 'Search query is required' }, { status: 400 })
    }

    const lowerQuery = query.toLowerCase()

    // Search songs - SQLite uses LIKE for case-insensitive matching with LOWER()
    const songs = await prisma.song.findMany({
      where: {
        isPublic: true,
        OR: [
          {
            title: {
              contains: lowerQuery,
            },
          },
          {
            description: {
              contains: lowerQuery,
            },
          },
        ],
      },
      include: {
        artist: {
          select: {
            id: true,
            name: true,
            slug: true,
            verified: true,
          },
        },
        album: {
          select: {
            id: true,
            title: true,
            slug: true,
            coverUrl: true,
          },
        },
        genres: {
          include: {
            genre: true,
          },
        },
      },
      take: limit,
    })

    // Search artists
    const artists = await prisma.artist.findMany({
      where: {
        OR: [
          {
            name: {
              contains: lowerQuery,
            },
          },
          {
            bio: {
              contains: lowerQuery,
            },
          },
        ],
      },
      include: {
        _count: {
          select: {
            songs: true,
            albums: true,
          },
        },
      },
      take: limit,
    })

    // Search albums
    const albums = await prisma.album.findMany({
      where: {
        OR: [
          {
            title: {
              contains: lowerQuery,
            },
          },
          {
            description: {
              contains: lowerQuery,
            },
          },
        ],
      },
      include: {
        artist: {
          select: {
            id: true,
            name: true,
            slug: true,
            verified: true,
          },
        },
        _count: {
          select: {
            songs: true,
          },
        },
      },
      take: limit,
    })

    return NextResponse.json({
      songs,
      artists,
      albums,
    })
  } catch (error) {
    console.error('Error searching:', error)
    return NextResponse.json({ error: 'Failed to perform search' }, { status: 500 })
  }
}