package order

import (
	"encoding/json"
	logger "eta/eta_mini_ht_api/common/component/log"
	"eta/eta_mini_ht_api/models"
	merchantDao "eta/eta_mini_ht_api/models/merchant"
	"eta/eta_mini_ht_api/models/message"
	"eta/eta_mini_ht_api/models/order"
	"fmt"
	"math/rand"
	"strconv"
	"time"
)

const (
	RMB                      = "CNY"
	AliPayWay     PaymentWay = "alipay"
	WechatPay     PaymentWay = "wechat"
	RefundSuccess            = "success"
	RefundFail               = "fail"
	PaySuccess               = "success"
	PayFail                  = "fail"
)

type PaymentWay string

type TradeOrderDTO struct {
	ID             int       `gorm:"column:id;primaryKey"`
	TransactionID  string    `gorm:"column:transaction_id;type:varchar(255);comment:第三方平台ID"`
	ProductOrderID string    `gorm:"column:product_order_id;type:varchar(255);comment:商品订单号"`
	PaymentAccount string    `gorm:"column:payment_account;type:varchar(255);comment:支付账号"`
	PaymentWay     string    `gorm:"column:payment_way;type:enum('wechat');comment:支付渠道"`
	Amount         string    `gorm:"column:amount;type:varchar(20);comment:支付金额"`
	Currency       string    `gorm:"column:currency;type:varchar(255);comment:货币"`
	MerchantID     string    `gorm:"column:merchant_id;type:int(11);comment:商户id"`
	UserID         int       `gorm:"column:user_id;type:int(11);comment:用户id"`
	TemplateUserID int       `gorm:"column:template_user_id;type:int(11);comment:临时用户id"`
	PaymentType    string    `gorm:"column:payment_type;type:enum('pay','refund');comment:订单类型"`
	PaymentStatus  string    `gorm:"column:payment_status;type:enum('pending','processing','done','failed');comment:支付状态"`
	DealTime       time.Time `gorm:"column:deal_time;type:datetime;comment:完成时间"`
}

func GenerateTradeOrderNo() string {
	timestamp := time.Now().UnixNano() / 1000000 // 毫秒级时间戳
	// 生成随机数
	rand.New(rand.NewSource(time.Now().UnixNano()))
	randomPart := rand.Intn(999999)
	// 格式化订单号
	orderNumber := fmt.Sprintf("T%d%06d", timestamp, randomPart)
	return orderNumber
}

func CreateTradeOrder(userId, templateUserId int, productOrderNo, tradeOrderNo, merchantNo string) (err error) {
	db := models.Main()
	productOrder, err := order.GetOrderByUser(templateUserId, productOrderNo)
	if err != nil {
		logger.Error("获取商品订单信息失败%v", err)
		return
	}
	tx := db.Begin()
	defer func() {
		if err != nil {
			tx.Rollback()
			return
		}
		tx.Commit()
	}()
	tradeOrder := order.TradeOrder{
		ProductOrderID: productOrderNo,
		ProductName:    productOrder.ProductName,
		TransactionID:  tradeOrderNo,
		Amount:         productOrder.TotalAmount,
		Mobile:         productOrder.Mobile,
		AreaCode:       productOrder.AreaCode,
		RealName:       productOrder.RealName,
		PaymentWay:     order.WechatPayWay,
		Currency:       RMB,
		MerchantID:     merchantNo,
		UserID:         userId,
		TemplateUserID: templateUserId,
		PaymentType:    order.PaymentTypePay,
	}
	err = tx.Create(&tradeOrder).Error
	if err != nil {
		logger.Error("创建支付订单失败%v", err)
		return
	}
	err = tx.Model(&order.ProductOrder{}).Where("id = ?", productOrder.ID).Updates(map[string]interface{}{
		"trade_id":       tradeOrder.ID,
		"trade_no":       tradeOrder.TransactionID,
		"payment_time":   time.Now(),
		"payment_amount": tradeOrder.Amount,
		"payment_way":    tradeOrder.PaymentWay,
	}).Error
	return
}
func convertToDTO(tradeOrder order.TradeOrder) TradeOrderDTO {
	return TradeOrderDTO{
		ID:             tradeOrder.ID,
		TransactionID:  tradeOrder.TransactionID,
		ProductOrderID: tradeOrder.ProductOrderID,
		PaymentAccount: tradeOrder.PaymentAccount,
		PaymentWay:     string(tradeOrder.PaymentWay),
		Amount:         tradeOrder.Amount,
		Currency:       tradeOrder.Currency,
		MerchantID:     tradeOrder.MerchantID,
		UserID:         tradeOrder.UserID,
		TemplateUserID: tradeOrder.UserID,
		PaymentType:    string(tradeOrder.PaymentType),
		PaymentStatus:  string(tradeOrder.PaymentStatus),
		DealTime:       tradeOrder.DealTime,
	}
}
func GetUnFailedTradeFlowByProductOrder(productOrderNo string) (dtoList []TradeOrderDTO, err error) {
	var tradeOrderList []order.TradeOrder
	tradeOrderList, err = order.GetUnFailedTradeFlowByProductOrder(productOrderNo)
	for _, tradeOrder := range tradeOrderList {
		dtoList = append(dtoList, convertToDTO(tradeOrder))
	}
	return
}
func GetTradeOrderByNo(tradeOrderNo string) (dto TradeOrderDTO, err error) {
	var tradeOrder order.TradeOrder
	tradeOrder, err = order.GetTradeOrderByNo(tradeOrderNo, order.PaymentTypePay)
	dto = convertToDTO(tradeOrder)
	return
}

type RefundDealFlowDTO struct {
	OperatorUserID int    `gorm:"column:operator_user_id"`
	ProductOrderNo string `gorm:"column:product_order_no"`
	RefundOrderNo  string `gorm:"column:refund_order_no"`
}

func convertRefundDTO(flow order.RefundDealFlow) RefundDealFlowDTO {
	return RefundDealFlowDTO{
		OperatorUserID: flow.OperatorUserID,
		ProductOrderNo: flow.ProductOrderNo,
		RefundOrderNo:  flow.RefundOrderNo,
	}

}

func createRefundMetaInfo(sysUserId int, productOrderNo string, flag string) (err error) {
	productOrder, err := order.GetOrderByOrderNo(productOrderNo)
	if err != nil {
		logger.Error("生成退款消息通知失败,获取订单信息失败:v,订单编号:%s", err, productOrderNo)
		return
	}
	var result string
	switch flag {
	case RefundSuccess:
		result = "成功"
	case RefundFail:
		result = "失败"
	default:
		logger.Error("生成退款消息通知失败,未知的退款状态%s,订单编号:%s", flag, productOrderNo)
		return
	}
	refundInfo := message.RefundMetaData{
		RealName:       productOrder.RealName,
		ProductOrderNo: productOrderNo,
		Result:         result,
	}

	bytes, err := json.Marshal(refundInfo)
	if err != nil {
		logger.Error("生成退款消息通知失败,序列化退款信息失败:%v,订单编号:%s", err, productOrderNo)
		return
	}
	metaInfo := message.MetaInfo{
		Meta:       string(bytes),
		MetaType:   message.SysUserNoticeType,
		SourceType: message.RefundSourceType,
		Status:     message.InitStatusType,
		From:       "HTTradePlate",
		To:         strconv.Itoa(sysUserId),
	}
	return message.CreateMetaInfo(metaInfo)
}

func DealRefund(refundOrderNo string, flag string) (productOrderDTO ProductOrderDTO, err error) {
	flow, err := order.GetRefundFlow(refundOrderNo)
	if err != nil {
		logger.Error("获取退款流水失败%v,退款订单:%s", err, refundOrderNo)
		return
	}
	//处理退款订单
	tradeOrder, err := order.GetTradeOrderByNo(flow.RefundOrderNo, order.PaymentTypeRefund)
	if err != nil {
		logger.Error("获取退款订单失败%v,退款订单:%s", err, refundOrderNo)
		return
	}
	isSuccess := false
	if flag == RefundSuccess {
		isSuccess = true
	}
	err = order.DealRefundOrder(tradeOrder, isSuccess)
	if err != nil {
		logger.Error("处理退款结果失败%v,退款订单:%s", err, refundOrderNo)
		return
	}
	var productOrder order.ProductOrder
	productOrder, err = order.GetOrderByOrderNo(tradeOrder.ProductOrderID)
	if err != nil {
		logger.Error("获取产品订单失败%v,退款订单:%s", err, refundOrderNo)
		return
	}
	productOrderDTO = ConvertProductOrderDTO(productOrder)
	_ = createRefundMetaInfo(flow.OperatorUserID, flow.ProductOrderNo, flag)
	return
}
func DealPayment(tradeOrderNo string, flag string) (productOrderDTO ProductOrderDTO, err error) {
	//处理退款订单
	tradeOrder, err := order.GetTradeOrderByNo(tradeOrderNo, order.PaymentTypePay)
	if err != nil {
		logger.Error("获取支付订单失败%v,支付订单:%s", err, tradeOrderNo)
		return
	}
	isSuccess := false
	if flag == PaySuccess {
		isSuccess = true
	}
	var productOrder order.ProductOrder
	productOrder, err = order.GetOrderByOrderNo(tradeOrder.ProductOrderID)
	if err != nil {
		logger.Error("获取产品订单失败%v,支付订单:%s", err, tradeOrderNo)
		return
	}
	product, err := merchantDao.GetMerchantProductById(productOrder.ProductID)
	if err != nil {
		logger.Error("获取产品信息失败:%v,productId:%d", err, productOrder.ProductID)
	}
	var validDuration string
	if product.Type == merchantDao.Package {
		beginDate := time.Now().Format(time.DateOnly)
		endDate := time.Now().Add(time.Duration(product.ValidDays * 24)).Format(time.DateOnly)
		validDuration = fmt.Sprintf("%s~%s", beginDate, endDate)
	} else {
		validDuration = "永久有效"
	}
	err = order.DealPaymentOrder(tradeOrder, isSuccess, validDuration)
	if err != nil {
		logger.Error("处理支付结果失败%v,支付订单:%s", err, tradeOrderNo)
		return
	}

	productOrderDTO = ConvertProductOrderDTO(productOrder)
	return
}