import { NextRequest, NextResponse } from 'next/server'
import { AppService } from '@/lib/services/database-service'

const appService = new AppService()

// 獲取評論的投票統計
export async function GET(
  request: NextRequest,
  { params }: { params: Promise<{ id: string }> }
) {
  try {
    const { id: reviewId } = await params
    const { searchParams } = new URL(request.url)
    const userId = searchParams.get('userId')
    
    const votes = await appService.getReviewVotes(reviewId, userId || undefined)
    
    return NextResponse.json({
      success: true,
      data: votes
    })
  } catch (error) {
    console.error('獲取評論投票錯誤:', error)
    return NextResponse.json(
      { success: false, error: '獲取評論投票時發生錯誤' },
      { status: 500 }
    )
  }
}

// 投票或取消投票
export async function POST(
  request: NextRequest,
  { params }: { params: Promise<{ id: string }> }
) {
  try {
    const { id: reviewId } = await params
    const { userId, isHelpful } = await request.json()

    if (!userId || typeof isHelpful !== 'boolean') {
      return NextResponse.json(
        { success: false, error: '缺少必要參數' },
        { status: 400 }
      )
    }

    const result = await appService.toggleReviewVote(reviewId, userId, isHelpful)
    
    if (result.success) {
      // 獲取更新後的投票統計
      const votes = await appService.getReviewVotes(reviewId, userId)
      return NextResponse.json({
        success: true,
        data: votes
      })
    } else {
      return NextResponse.json(
        { success: false, error: result.error || '投票失敗' },
        { status: 500 }
      )
    }
  } catch (error) {
    console.error('投票評論錯誤:', error)
    return NextResponse.json(
      { success: false, error: '投票評論時發生錯誤' },
      { status: 500 }
    )
  }
}