package payment

import (
	"eta/eta_mini_ht_api/common/component/cache"
	logger "eta/eta_mini_ht_api/common/component/log"
	"eta/eta_mini_ht_api/common/exception"
	"eta/eta_mini_ht_api/common/utils/payment"
	"eta/eta_mini_ht_api/common/utils/redis"
	orderService "eta/eta_mini_ht_api/domian/order"
	"fmt"
	"strings"
)

var (
	redisUtils = cache.GetInstance()
)

type WechatSDKParams struct {
	OrderNo   string
	PrepayId  string
	Timestamp string
	NonceStr  string
	PaySign   string
	SignType  string
}

func CreatePaymentOrder(userId, templateUserId int, OrderNo string, tradeNo string) (err error) {
	//先获取当前商品订单的支付记录
	tradeOrderList, err := orderService.GetUnFailedTradeFlowByProductOrder(OrderNo)
	if len(tradeOrderList) > 0 {
		for _, tradeOrder := range tradeOrderList {
			if tradeOrder.PaymentStatus == "done" {
				logger.Error("当前商品订单已支付,无法再次发起支付")
				return exception.New(exception.PaymentDoneError)
			}
			if tradeOrder.PaymentStatus == "pending" {
				logger.Error("当前商品订单正在支付,无法再次发起支付")
				return exception.New(exception.PaymentProcessingError)
			}
		}
	}
	merchantId := redisUtils.GetString(redis.GenerateMerchantKey())
	if merchantId == "" {
		logger.Error("商户配置信息不存在,无法创建支付订单")
		err = exception.New(exception.MerchantInfoNotConfig)
		return
	}
	return orderService.CreateTradeOrder(userId, templateUserId, OrderNo, tradeNo, merchantId)
}

func GenerateProductOrderNo() string {
	return orderService.GenerateTradeOrderNo()
}

func DealWechatSDKParams(sdk WechatSDKParams) (err error) {
	keys, err := redisUtils.Keys(redis.GenerateWechatOrderToken("*"))
	if err != nil {
		err = fmt.Errorf("系统异常,获取支付订单失败")
	}
	var hitOrder bool
	var paymentParam payment.PaymentParam
	var redisErr error
	for _, key := range keys {
		paymentParam, redisErr = payment.GetPaymentParam(strings.TrimPrefix(key, "payment:token:"))
		if redisErr != nil {
			continue
		}
		if paymentParam.PayOrderNo == sdk.OrderNo {
			if paymentParam.Status != payment.PENDING {
				logger.Error("重复的推送消息")
				err = fmt.Errorf("当前订单正在处理中,请勿重复推送")
				return
			}
			paymentParam.PrepayId = sdk.PrepayId
			paymentParam.Timestamp = sdk.Timestamp
			paymentParam.NonceStr = sdk.NonceStr
			paymentParam.PaySign = sdk.PaySign
			paymentParam.SignType = sdk.SignType
			redisErr = payment.Ready(key, paymentParam)
			if redisErr == nil {
				hitOrder = true
			}
			break
		}
	}
	if !hitOrder {
		logger.Error("处理微信支付SDK失败,订单信息不存在/信息处理异常[%v]", redisErr)
		err = fmt.Errorf("处理微信支付SDK失败,订单信息不存在/信息处理异常")
	}
	return
}