package service

import (
	"github.com/gin-gonic/gin"
	"gorm.io/gorm"
	"log"
	"sfis/db"
	"sfis/lock"
	"sfis/model"
	"sfis/utils"
	"time"
)

func MoneyRecharge(appid string, money int, remark string, discount int) error {
	//取出用户锁
	lock.MainLock.Lock()
	userLock := lock.UserLockMap[appid]
	lock.MainLock.Unlock()
	userLock.Lock()
	defer userLock.Unlock()
	//查用户当前余额
	userAccount := &model.UserAccount{}
	db.GetSFISDB().First(userAccount, &model.UserAccount{AppID: appid})
	// 更新时间
	nowStr := time.Now().Local().Format("2006-01-02 15:04:05")
	errs := db.GetSFISDB().Transaction(func(tx *gorm.DB) error {
		moneyBefore := userAccount.Money
		moneyAfter := userAccount.Money + money
		var err error
		//修改折扣discount
		if discount != 0 {
			err = tx.Exec("update user_product set discount = ? WHERE `app_id` = ?", discount, appid).Error
			if err != nil {
				log.Printf("appID:[%s],money:[%d] execute cost user_account error:[%v]", appid, moneyAfter, err)
				tx.Rollback()
				return err
			}
		}
		//充值
		err = tx.Exec("update user_account set money = ?,update_at = ? WHERE `app_id` = ?", moneyAfter, nowStr, appid).Error
		if err != nil {
			log.Printf("appID:[%s],money:[%d] execute cost user_account error:[%v]", appid, moneyAfter, err)
			tx.Rollback()
			return err
		}
		//生充值记录
		err = tx.Exec("insert into user_money_record (app_id,`before`,`after`,trade_money,remark,create_at) values (?,?,?,?,?,?)", appid, moneyBefore, moneyAfter, money, remark, nowStr).Error
		if err != nil {
			log.Printf("appID:[%s],trade_money:[%d] execute insert into user_money_record error:[%v]", appid, money, err)
			tx.Rollback()
			return err
		}
		return nil
	})
	return errs
}

func ProductRecharge(appid string, productId, rechargeNum int, startTime string, endTime string, tradeMoney int, context *gin.Context) error {
	//取出用户锁
	lock.MainLock.Lock()
	userLock := lock.UserLockMap[appid]
	lock.MainLock.Unlock()
	userLock.Lock()
	defer userLock.Unlock()

	//查用户当前剩余量
	userProduct := &model.UserProduct{}
	db.GetSFISDB().First(userProduct, &model.UserProduct{AppID: appid, ProductID: productId})
	product := &model.Product{}
	if products, ok := utils.ProductCaches.Map.Load(productId); ok {
		product = products.(*model.Product)
	}
	// 更新时间
	nowStr := time.Now().Local().Format("2006-01-02 15:04:05")

	errs := db.GetSFISDB().Transaction(func(tx *gorm.DB) error {
		before := userProduct.LeftNum
		after := userProduct.LeftNum + rechargeNum
		//充值
		var err error
		if endTime != "" && startTime != "" {
			err = tx.Exec("update user_product set left_num = ?,start_at=?,end_at = ? ,update_at = ? WHERE `app_id` = ? and product_id = ?", after, startTime, endTime, nowStr, appid, productId).Error
			if err != nil {
				log.Printf("appID:[%s],left_num:[%d],endtime:[%s],starttime:[%s]  execute cost user_product error:[%v]", appid, after, endTime, startTime, err)
				tx.Rollback()
				return err
			}
		} else {
			err = tx.Exec("update user_product set left_num = ?,update_at = ? WHERE `app_id` = ? and product_id = ?", after, nowStr, appid, productId).Error
			if err != nil {
				log.Printf("appID:[%s],left_num:[%d] execute cost user_product error:[%v]", appid, after, err)
				tx.Rollback()
				return err
			}
		}
		//生购买记录
		err = tx.Exec("insert into user_buy_record (app_id,product_id,user_product_id,`before`,`after`,trade_money,buy_type,history_unit_price,create_at) values (?,?,?,?,?,?,?,?,?)", appid, productId, userProduct.ID, before, after, tradeMoney, 1, product.UnitPrice, nowStr).Error
		if err != nil {
			log.Printf("appID:[%s],product_id:[%d],user_product_id:[%d],after:[%d],trade_money:[%d] execute insert into user_buy_record error:[%v]", appid, productId, userProduct.ID, after, tradeMoney, err)
			tx.Rollback()
			return err
		}
		return nil
	})
	return errs
}