import { NextRequest, NextResponse } from 'next/server'
import { requireAuth } from '@/lib/auth'
import { getPlayHistory, updatePlayHistoryItem } from '@/lib/player'

export async function GET(request: NextRequest) {
  try {
    const user = await requireAuth()
    const { searchParams } = new URL(request.url)

    const limit = parseInt(searchParams.get('limit') || '50')
    const offset = parseInt(searchParams.get('offset') || '0')

    // Validate pagination parameters
    if (limit < 1 || limit > 100) {
      return NextResponse.json(
        { error: 'Limit must be between 1 and 100' },
        { status: 400 }
      )
    }

    if (offset < 0) {
      return NextResponse.json(
        { error: 'Offset must be non-negative' },
        { status: 400 }
      )
    }

    const history = await getPlayHistory(user.id, limit, offset)

    return NextResponse.json(
      { history, limit, offset },
      { status: 200 }
    )
  } catch (error) {
    console.error('Get play history error:', error)
    if (error instanceof Error && error.message === 'Unauthorized') {
      return NextResponse.json(
        { error: 'Unauthorized' },
        { status: 401 }
      )
    }
    return NextResponse.json(
      { error: 'Failed to fetch play history' },
      { status: 500 }
    )
  }
}

export async function POST(request: NextRequest) {
  try {
    const user = await requireAuth()
    const body = await request.json()
    const { songId, playedDuration, completed } = body

    if (!songId) {
      return NextResponse.json(
        { error: 'Song ID is required' },
        { status: 400 }
      )
    }

    if (typeof playedDuration !== 'number' || playedDuration < 0) {
      return NextResponse.json(
        { error: 'Played duration must be a non-negative number' },
        { status: 400 }
      )
    }

    await updatePlayHistoryItem(
      user.id,
      songId,
      playedDuration,
      completed || false
    )

    return NextResponse.json(
      { message: 'Play history updated' },
      { status: 200 }
    )
  } catch (error) {
    console.error('Update play history error:', error)
    if (error instanceof Error && error.message === 'Unauthorized') {
      return NextResponse.json(
        { error: 'Unauthorized' },
        { status: 401 }
      )
    }
    return NextResponse.json(
      { error: 'Failed to update play history' },
      { status: 500 }
    )
  }
}