/**
 * 支付接口模块
 */

import { get, post } from './request'

/**
 * 获取会员等级配置
 * @returns {Promise<Object>} 会员等级列表
 */
export function getMemberTiers() {
  return get('/pay/memberTiers')
}

/**
 * 创建会员订单
 * @param {number} memberLevel - 会员等级：1永久会员 2诚意会员 3家庭版会员
 * @returns {Promise<Object>} 订单信息和支付参数
 */
export function createMemberOrder(memberLevel) {
  return post('/pay/createOrder', { memberLevel })
}

/**
 * 查询订单详情
 * @param {string} orderNo - 订单号
 * @returns {Promise<Object>} 订单详情
 */
export function getOrderDetail(orderNo) {
  return get(`/pay/order/${orderNo}`)
}

/**
 * 查询订单支付状态（主动查询微信）
 * @param {string} orderNo - 订单号
 * @returns {Promise<Object>} 订单详情
 */
export function queryOrderStatus(orderNo) {
  return get(`/pay/order/${orderNo}/status`)
}

/**
 * 取消订单
 * @param {string} orderNo - 订单号
 * @returns {Promise<Object>} 操作结果
 */
export function cancelOrder(orderNo) {
  return post(`/pay/order/${orderNo}/cancel`)
}

/**
 * 调起微信支付
 * @param {Object} paymentParams - 支付参数
 * @returns {Promise<Object>} 支付结果
 */
export function requestPayment(paymentParams) {
  return new Promise((resolve, reject) => {
    wx.requestPayment({
      timeStamp: paymentParams.timeStamp,
      nonceStr: paymentParams.nonceStr,
      package: paymentParams.package,
      signType: paymentParams.signType || 'RSA',
      paySign: paymentParams.paySign,
      success: (res) => {
        resolve({ success: true, data: res })
      },
      fail: (err) => {
        if (err.errMsg.includes('cancel')) {
          resolve({ success: false, cancelled: true, message: '用户取消支付' })
        } else {
          reject(err)
        }
      }
    })
  })
}

/**
 * 购买会员完整流程
 * @param {number} memberLevel - 会员等级
 * @returns {Promise<Object>} 支付结果
 */
export async function purchaseMember(memberLevel) {
  try {
    // 1. 创建订单
    const orderRes = await createMemberOrder(memberLevel)
    if (orderRes.code !== 0) {
      return { success: false, message: orderRes.message || '创建订单失败' }
    }

    const { orderNo, paymentParams } = orderRes.data

    // 2. 调起支付
    const payRes = await requestPayment(paymentParams)
    if (!payRes.success) {
      return payRes
    }

    // 3. 查询支付结果
    const statusRes = await queryOrderStatus(orderNo)
    if (statusRes.code === 0 && statusRes.data.status === 2) {
      return { success: true, orderNo, message: '支付成功' }
    }

    return { success: true, orderNo, message: '支付处理中' }
  } catch (error) {
    console.error('购买会员失败:', error)
    return { success: false, message: error.message || '支付失败' }
  }
}

export default {
  getMemberTiers,
  createMemberOrder,
  getOrderDetail,
  queryOrderStatus,
  cancelOrder,
  requestPayment,
  purchaseMember
}