package shanghu

import (
	"duoduo/apis/shanghu/models"
	orm "duoduo/database"
	"duoduo/tools"
	"encoding/json"
	"errors"
	"fmt"
	"github.com/shopspring/decimal"
	"time"
)

type MerchantClientTicket struct {
	ID                      int64     `gorm:"column:id;type:bigint(20);primary_key" json:"id"`
	RechargeProjectID       int64     `gorm:"column:recharge_project_id;type:bigint(20)" json:"recharge_project_id"`          // 项目id
	RechargeProjectQuantity int       `gorm:"column:recharge_project_quantity;type:int(11)" json:"recharge_project_quantity"` // 项目数量
	RechargeProjectName     string    `gorm:"column:recharge_project_name;type:varchar(255)" json:"recharge_project_name"`    // 项目名
	MerchantOpenID          string    `gorm:"column:merchant_open_id;type:varchar(255)" json:"merchant_open_id"`
	ClientOpenID            string    `gorm:"column:client_open_id;type:varchar(255)" json:"client_open_id"`
	Operator                string    `gorm:"column:operator;type:varchar(255)" json:"operator"`                 // operator 操作人
	Version                 int       `gorm:"column:version;type:int(11)" json:"version"`                        // 锁
	CreateBy                int64     `gorm:"column:create_by;type:bigint(20)" json:"create_by"`                 // 创建者
	UpdateBy                int64     `gorm:"column:update_by;type:bigint(20)" json:"update_by"`                 // 更新者
	CreatedAt               time.Time `gorm:"column:created_at;type:datetime(3)" json:"created_at"`              // 创建时间
	UpdatedAt               time.Time `gorm:"column:updated_at;type:datetime(3)" json:"updated_at"`              // 最后更新时间
	DeletedAt               time.Time `gorm:"column:deleted_at;type:datetime(3);default:null" json:"deleted_at"` // 删除时间
}

func (m *MerchantClientTicket) TableName() string {
	return "merchant_client_ticket"
}

func (u *MerchantClientTicket) Create() (MerchantClientTicket, error) {
	var doc MerchantClientTicket
	var err error

	doc = *u
	err = orm.ShMysql.Table(u.TableName()).Create(&doc).Error
	if err != nil {
		return doc, err
	}

	return doc, nil
}

// 商家充值进来，卡的商家
func (u *MerchantClientTicket) Recharge(recharge MerchantRecharge, clientOpenId string, operator string) error {
	var err error
	var account MerchantRechargeClientAccount
	var accountLog MerchantRechargeClientAccountLog
	var project []MerchantRechargeProject

	tx := orm.ShMysql.Begin()
	defer func() {
		if err != nil {
			tx.Rollback()
		} else {
			tx.Commit()
		}
	}()

	err = tx.Table("merchant_recharge_client_account").Where("client_open_id = ? and merchant_open_id = ?",
		clientOpenId, recharge.MerchantOpenID).First(&account).Error
	if err != nil && err.Error() != "record not found" {
		return err
	}

	fmt.Println("account = ", account)

	// 创建充值记录
	if account.ID == 0 {
		var clientAccount MerchantRechargeClientAccount
		clientAccount.Amount, err = decimal.NewFromString(recharge.Amount)
		if err != nil {
			return err
		}

		accountAmount, err := decimal.NewFromString(recharge.Amount)
		if err != nil {
			return err
		}
		clientAccount.ClientOpenID = clientOpenId
		clientAccount.MerchantOpenID = recharge.MerchantOpenID
		clientAccount.UpdatedAt = time.Now()
		clientAccount.CreatedAt = time.Now()
		err = tx.Table(clientAccount.TableName()).Create(&clientAccount).Error
		if err != nil {
			return err
		}

		//充值记录
		accountLog.Amount = accountAmount
		accountLog.AmountAfter = accountAmount
		accountLog.ClientOpenID = clientOpenId
		accountLog.MerchantOpenID = recharge.MerchantOpenID //充值商户
		accountLog.TransType = 1                            //充值
		accountLog.Operator = operator                      //充值人员
		accountLog.PayTransID = recharge.ID
		accountLog.CreatedAt = time.Now()
		accountLog.UpdatedAt = time.Now()
		err = tx.Table(accountLog.TableName()).Create(&accountLog).Error
		if err != nil {
			return err
		}

	} else { //更新充值加钱，并且保存记录
		//var clientAccount MerchantRechargeClientAccount
		//clientAccount.MerchantOpenID = recharge.MerchantOpenID
		//clientAccount.ClientOpenID = clientOpenId
		//err = tx.Table(clientAccount.TableName()).Where("client_open_id = ? and merchant_open_id = ?",
		//	clientOpenId, recharge.MerchantOpenID).First(&clientAccount).Error
		//if err != nil {
		//	return err
		//}

		inAmount, err := decimal.NewFromString(recharge.Amount)
		if err != nil {
			return err
		}
		fmt.Println("inAmount = ", inAmount)
		amountPre := account.Amount
		amountAfter := account.Amount.Add(inAmount)

		result := tx.Table(account.TableName()).Model(&account).Where("id = ? and version = ? ", account.ID, account.Version).Updates(
			map[string]interface{}{
				"client_open_id":   account.ClientOpenID,
				"merchant_open_id": account.MerchantOpenID,
				"amount":           amountAfter,
				"version":          account.Version + 1,
				"updated_at":       tools.GetCurrntTimeStr()})
		if result.Error != nil {
			err = result.Error
			return err
		}
		if result.RowsAffected <= 0 {
			err = errors.New("金额充值失败，请重新再试。")
			return err
		}

		//充值记录
		accountLog.Amount = inAmount
		accountLog.AmountPre = amountPre
		accountLog.AmountAfter = amountAfter
		accountLog.ClientOpenID = clientOpenId
		accountLog.MerchantOpenID = recharge.MerchantOpenID //充值商户
		accountLog.TransType = 1                            //充值
		accountLog.Operator = operator                      //充值人员
		accountLog.PayTransID = recharge.ID
		accountLog.CreatedAt = time.Now()
		accountLog.UpdatedAt = time.Now()

		err = tx.Table(accountLog.TableName()).Create(&accountLog).Error
		if err != nil {
			return err
		}

	}
	fmt.Println(recharge.CardProjectData)
	//充卡券
	err = json.Unmarshal([]byte(recharge.CardProjectData), &project)
	if err != nil {
		return err
	}

	for _, v := range project {
		var ticket MerchantClientTicket

		ticket.RechargeProjectName = v.ProjectName
		ticket.RechargeProjectQuantity = v.ProjectQuantity
		ticket.RechargeProjectID = v.ID
		ticket.MerchantOpenID = v.MerchantOpenID
		ticket.ClientOpenID = clientOpenId
		ticket.Operator = operator

		err = tx.Table(ticket.TableName()).Create(&ticket).Error
		if err != nil {
			return err
		}
	}

	return nil
}

// list 接口使用
func (m *MerchantClientTicket) MerchantRechargeTicketList(pageSize int, pageIndex int) ([]MerchantClientTicket, int, error) {
	var doc []MerchantClientTicket

	table := orm.ShMysql.Table(m.TableName())

	table = table.Where("client_open_id = ? and merchant_open_id = ?", m.ClientOpenID, m.MerchantOpenID)
	var count int
	if err := table.Select("*").Order("id desc").Offset((pageIndex - 1) * pageSize).Limit(pageSize).Find(&doc).Error; err != nil {
		return nil, 0, err
	}
	table.Count(&count)
	return doc, count, nil
}

func (m *MerchantClientTicket) GetMerchantRechargeTicket() ([]MerchantClientTicket, error) {

	var doc []MerchantClientTicket

	table := orm.ShMysql.Table(m.TableName())

	table = table.Where("client_open_id = ? and merchant_open_id = ? and recharge_project_quantity > 0", m.ClientOpenID, m.MerchantOpenID)
	if err := table.Select("*").Order("id desc").Find(&doc).Error; err != nil {
		return nil, err
	}
	return doc, nil
}

func (m *MerchantClientTicket) CancelAccountTicket(data models.RechargeCancelRequest) error {
	var err error
	var rechargeAccount MerchantRechargeClientAccount
	var ticket MerchantClientTicket
	var accountLog MerchantRechargeClientAccountLog
	tx := orm.ShMysql.Begin()
	defer func() {
		if err != nil {
			tx.Rollback()
		} else {
			tx.Commit()
		}
	}()

	//扣除金额
	err = tx.Table("merchant_recharge_client_account").Select("*").Where("id = ?", data.AccountId).First(&rechargeAccount).Error
	if err != nil {
		return err
	}
	if data.CancelAmount != "" { //扣减账号金额
		cancelAmount, err := decimal.NewFromString(data.CancelAmount)
		if err != nil {
			return err
		}

		if rechargeAccount.Amount.Cmp(cancelAmount) < 0 {
			err = errors.New("金额不足")
			return err
		}

		amount := cancelAmount                                  //交易金额
		amountPre := rechargeAccount.Amount                     //交易前
		amountAfter := rechargeAccount.Amount.Sub(cancelAmount) //交易后

		result := tx.Table("merchant_recharge_client_account").Model(&rechargeAccount).Where("id = ? and version = ? ", rechargeAccount.ID, rechargeAccount.Version).Updates(
			map[string]interface{}{
				"amount":     amountAfter,
				"version":    rechargeAccount.Version + 1,
				"updated_at": tools.GetCurrntTimeStr()})

		if result.Error != nil {
			err = result.Error
			return err
		}
		if result.RowsAffected <= 0 {
			err = errors.New("核销失败，请重新再试。")
			return err
		}

		//充值记录
		accountLog.Amount = amount
		accountLog.AmountPre = amountPre
		accountLog.AmountAfter = amountAfter
		accountLog.ClientOpenID = rechargeAccount.ClientOpenID
		accountLog.MerchantOpenID = rechargeAccount.MerchantOpenID //充值商户
		accountLog.TransType = 2                                   //消费
		accountLog.Operator = data.MerchantOpenId                  //充值人员
		accountLog.CreatedAt = time.Now()
		accountLog.UpdatedAt = time.Now()

		err = tx.Table(accountLog.TableName()).Create(&accountLog).Error
		if err != nil {
			return err
		}

	}

	//扣卡券
	for _, v := range data.ChargeMerchantCancel {
		if v.CancelQuantity == 0 {
			continue
		}
		//扣券
		ticketInfo := MerchantClientTicket{}
		err = tx.Table(ticket.TableName()).Select("*").Where("id = ?", v.TicketId).First(&ticketInfo).Error
		if err != nil {
			return err
		}

		if ticketInfo.RechargeProjectQuantity < v.CancelQuantity {
			err = errors.New("卡券数量不够")
			return err
		}
		version := ticketInfo.Version
		//quantity := v.CancelQuantity                                           //交易前数量
		quantityAfter := ticketInfo.RechargeProjectQuantity - v.CancelQuantity //交易后数量

		result := tx.Table("merchant_client_ticket").Model(&ticketInfo).Where("id = ? and version = ? ", ticketInfo.ID, ticketInfo.Version).Updates(
			map[string]interface{}{
				"recharge_project_quantity": quantityAfter,
				"version":                   version + 1,
				"updated_at":                tools.GetCurrntTimeStr()})

		if result.Error != nil {
			err = result.Error
			return err
		}

		if result.RowsAffected <= 0 {
			err = errors.New("核销失败，请重新再试。")
			return err
		}

		//扣券日志
		rechargeCancelLog := RechargeCancelLog{
			ClientOpenID:   ticketInfo.ClientOpenID,
			MerchantOpenID: ticketInfo.MerchantOpenID,
			QuantityPre:    ticketInfo.RechargeProjectQuantity,
			QuantityAfter:  quantityAfter,
			Quantity:       v.CancelQuantity,
			Operator:       data.MerchantOpenId,
			RechargeID:     v.TicketId,
			CreatedAt:      time.Now(),
			UpdatedAt:      time.Now(),
		}

		err = tx.Table(rechargeCancelLog.TableName()).Create(&rechargeCancelLog).Error
		if err != nil {
			return err
		}

	}

	return nil
}