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

const appService = new AppService()

// 獲取應用的統計數據
export async function GET(
  request: NextRequest,
  { params }: { params: Promise<{ id: string }> }
) {
  try {
    const { id: appId } = await params
    const { searchParams } = new URL(request.url)
    const userId = searchParams.get('userId')

    // 獲取應用的統計數據
    const stats = await appService.getAppStats(appId, userId || undefined)
    
    return NextResponse.json({
      success: true,
      data: {
        likesCount: stats.likes_count || 0,
        viewsCount: stats.views_count || 0,
        rating: stats.average_rating || 0,
        reviewsCount: stats.reviews_count || 0,
        userLiked: stats.userLiked || false
      }
    })
  } catch (error) {
    console.error('獲取應用統計數據錯誤:', error)
    return NextResponse.json(
      { success: false, error: '獲取應用統計數據時發生錯誤' },
      { status: 500 }
    )
  }
}

// 更新應用統計數據（按讚、觀看等）
export async function POST(
  request: NextRequest,
  { params }: { params: Promise<{ id: string }> }
) {
  try {
    const { id: appId } = await params
    const { action, userId } = await request.json()

    if (!userId) {
      return NextResponse.json(
        { success: false, error: '需要用戶身份驗證' },
        { status: 401 }
      )
    }

    let result = false

    switch (action) {
      case 'like':
        result = await appService.toggleAppLike(appId, userId)
        break
      case 'view':
        result = await appService.incrementAppViews(appId, userId)
        break
      case 'favorite':
        result = await appService.toggleAppFavorite(appId, userId)
        break
      default:
        return NextResponse.json(
          { success: false, error: '無效的操作類型' },
          { status: 400 }
        )
    }

    if (result) {
      // 重新獲取更新後的統計數據
      const stats = await appService.getAppStats(appId)
      return NextResponse.json({
        success: true,
        data: {
          likesCount: stats.likes_count || 0,
          viewsCount: stats.views_count || 0,
          rating: stats.average_rating || 0,
          reviewsCount: stats.reviews_count || 0
        }
      })
    } else {
      return NextResponse.json(
        { success: false, error: '操作失敗' },
        { status: 500 }
      )
    }
  } catch (error) {
    console.error('更新應用統計數據錯誤:', error)
    return NextResponse.json(
      { success: false, error: '更新應用統計數據時發生錯誤' },
      { status: 500 }
    )
  }
}