soul-yongping/app/api/withdraw/route.ts

/**
 * 提现API
 * 用户提现到微信零钱或支付宝
 */

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

export async function POST(request: NextRequest) {
  try {
    const body = await request.json()
    const { userId, amount } = body
    
    if (!userId) {
      return NextResponse.json({ success: false, message: '缺少用户ID' }, { status: 400 })
    }
    
    if (!amount || amount <= 0) {
      return NextResponse.json({ success: false, message: '提现金额无效' }, { status: 400 })
    }
    
    // 查询用户信息
    const users = await query('SELECT * FROM users WHERE id = ?', [userId]) as any[]
    if (!users || users.length === 0) {
      return NextResponse.json({ success: false, message: '用户不存在' }, { status: 404 })
    }
    
    const user = users[0]
    
    // 检查是否绑定支付方式
    if (!user.wechat && !user.alipay) {
      return NextResponse.json({ 
        success: false, 
        message: '请先绑定微信号或支付宝',
        needBind: true 
      }, { status: 400 })
    }
    
    // 查询可提现金额（待结算收益）
    const earningsResult = await query(`
      SELECT COALESCE(SUM(commission), 0) as total_commission
      FROM referral_bindings
      WHERE referrer_id = ? AND status = 'converted'
    `, [userId]) as any[]
    
    const totalEarnings = parseFloat(earningsResult[0]?.total_commission || 0)
    
    // 查询已提现金额
    const withdrawnResult = await query(`
      SELECT COALESCE(SUM(amount), 0) as withdrawn
      FROM withdrawals
      WHERE user_id = ? AND status = 'completed'
    `, [userId]) as any[]
    
    const withdrawnAmount = parseFloat(withdrawnResult[0]?.withdrawn || 0)
    const availableAmount = totalEarnings - withdrawnAmount
    
    if (amount > availableAmount) {
      return NextResponse.json({ 
        success: false, 
        message: `可提现金额不足，当前可提现 ¥${availableAmount.toFixed(2)}` 
      }, { status: 400 })
    }
    
    // 创建提现记录
    const withdrawId = `W${Date.now()}`
    await query(`
      INSERT INTO withdrawals (id, user_id, amount, account_type, account, status, created_at)
      VALUES (?, ?, ?, ?, ?, 'pending', NOW())
    `, [
      withdrawId,
      userId,
      amount,
      user.alipay ? 'alipay' : 'wechat',
      user.alipay || user.wechat
    ])
    
    // TODO: 实际调用微信企业付款或支付宝转账API
    // 这里先模拟成功
    await query(`UPDATE withdrawals SET status = 'completed', completed_at = NOW() WHERE id = ?`, [withdrawId])
    
    return NextResponse.json({
      success: true,
      message: '提现成功',
      data: {
        withdrawId,
        amount,
        account: user.alipay || user.wechat,
        accountType: user.alipay ? '支付宝' : '微信'
      }
    })
    
  } catch (error) {
    console.error('[Withdraw] Error:', error)
    return NextResponse.json({
      success: false,
      message: '提现失败',
      error: String(error)
    }, { status: 500 })
  }
}