Page({
  data: {
    balance: '5280.00',  // 可提现余额
    withdrawAmount: '',  // 用户输入的提现金额
    withdrawMethods: [
      { id: 'alipay', name: '支付宝', icon: '/static/images/alipay.png' },
      { id: 'wechat', name: '微信', icon: '/static/images/wechat.png' },
      { id: 'bank', name: '银行卡', icon: '/static/images/bank.png' }
    ],
    selectedMethod: null,
    accountInfo: null
  },

  onLoad() {
    this.getUserBalance()
    this.getUserAccountInfo()
  },

  // 获取用户可提现余额
  getUserBalance() {
    // TODO: 调用后端API获取实际余额
    this.setData({
      balance: '5280.00'
    })
  },

  // 获取用户账户信息
  getUserAccountInfo() {
    // TODO: 调用后端API获取账户信息
    this.setData({
      accountInfo: {
        alipay: '138****1234',
        wechat: '微信用户',
        bank: {
          bankName: '中国银行',
          cardNumber: '**** **** **** 5678'
        }
      }
    })
  },

  // 选择提现方式
  selectWithdrawMethod(e) {
    const { id } = e.currentTarget.dataset
    this.setData({
      selectedMethod: id
    })
  },

  // 输入提现金额
  onAmountInput(e) {
    this.setData({
      withdrawAmount: e.detail.value
    })
  },

  // 全部提现
  withdrawAll() {
    this.setData({
      withdrawAmount: this.data.balance
    })
  },

  // 提现申请
  submitWithdraw() {
    const { withdrawAmount, selectedMethod, balance } = this.data

    // 验证提现金额
    if (!withdrawAmount) {
      wx.showToast({
        title: '请输入提现金额',
        icon: 'none'
      })
      return
    }

    const amount = parseFloat(withdrawAmount)
    const maxBalance = parseFloat(balance)

    if (isNaN(amount) || amount <= 0) {
      wx.showToast({
        title: '请输入有效的金额',
        icon: 'none'
      })
      return
    }

    if (amount > maxBalance) {
      wx.showToast({
        title: '提现金额不能超过可用余额',
        icon: 'none'
      })
      return
    }

    // 验证提现方式
    if (!selectedMethod) {
      wx.showToast({
        title: '请选择提现方式',
        icon: 'none'
      })
      return
    }

    // 确认提现
    wx.showModal({
      title: '确认提现',
      content: `确定要提现${withdrawAmount}元到${this.getMethodName(selectedMethod)}？`,
      success: (res) => {
        if (res.confirm) {
          this.processWithdraw()
        }
      }
    })
  },

  // 获取提现方式名称
  getMethodName(method) {
    const methodMap = {
      'alipay': '支付宝',
      'wechat': '微信',
      'bank': '银行卡'
    }
    return methodMap[method] || '未知方式'
  },

  // 处理提现流程
  processWithdraw() {
    wx.showLoading({
      title: '提现处理中...'
    })

    // TODO: 调用后端API处理提现
    setTimeout(() => {
      wx.hideLoading()
      wx.showToast({
        title: '提现申请成功',
        icon: 'success'
      })

      // 更新余额
      const newBalance = (parseFloat(this.data.balance) - parseFloat(this.data.withdrawAmount)).toFixed(2)
      this.setData({
        balance: newBalance,
        withdrawAmount: ''
      })
    }, 1500)
  },

  // 管理收款账户
  manageAccounts() {
    wx.navigateTo({
      url: '/pages/bank/list'
    })
  }
})