package service

import (
	"errors"
	"github.com/gin-gonic/gin"
	"go.uber.org/zap"
	"gorm.io/gorm"
	"log"
	"sfbase/global"
	"sfbase/utils"
	"sfis/db"
	"sfis/lock"
	"sfis/model"
	"sfis/model/response"
	"strconv"
	"sync"
	"time"
)

func CreateUserProduct(appId string, productArr []map[string]interface{}, buyType int) (status int, haveProductId string, err error) {
	//取出用户锁
	lock.MainLock.Lock()
	userLock := lock.UserLockMap[appId]
	lock.MainLock.Unlock()
	userLock.Lock()
	defer userLock.Unlock()
	var errs error
	haveProductId = "" //已经购买过的产品id
	for _, val := range productArr {
		productId := utils.IntAll(val["productId"])
		costModel := utils.IntAll(val["costModel"])
		leftNum := utils.IntAll(val["leftNum"])
		tradeMoney := utils.IntAll(val["tradeMoney"]) * 100
		userProduct := &model.UserProduct{}
		userProduct.AppID = appId
		userProduct.StartAt, _ = time.ParseInLocation("2006-01-02 15:04:05", utils.ObjToString(val["startTime"]), time.Local)
		userProduct.EndAt, _ = time.ParseInLocation("2006-01-02 15:04:05", utils.ObjToString(val["endTime"]), time.Local)
		userProduct.LeftNum = leftNum
		userProduct.CostModel = costModel
		userProduct.InterfaceStatus = utils.IntAll(val["interfaceStatus"])
		userProduct.CallTimesLimitDay = utils.IntAll(val["callTimesLimitDay"])
		userProduct.DataNumLimitOneTimes = utils.IntAll(val["dataNumOneTimes"])
		userProduct.ProductID = productId
		userProductInfo := model.UserProduct{}
		product := model.Product{}
		//查询产品信息，获取购买时候产品单价、试用次数
		err := db.GetSFISDB().Where("id = ?", productId).Find(&product).Error
		if err != nil {
			global.Logger.Error("CreateUserProduct查询product表出错：", zap.Any("err:", err))
			return 0, haveProductId, err
		}
		historyUnitPrice := product.UnitPrice
		err = db.GetSFISDB().Where("product_id = ? and app_id = ?", productId, appId).Find(&userProductInfo).Error
		if err != nil {
			global.Logger.Error("CreateUserProduct查询user_product表出错：", zap.Any("err:", err))
			return 0, haveProductId, err
		}
		//用户第一次购买产品
		if userProductInfo.ID == 0 {
			errs = db.GetSFISDB().Transaction(func(tx *gorm.DB) error {
				rechargeAmount := 0
				remark := ""
				//第一次购买产品赠送试用量
				testNum := product.TestNum
				//扣费类型为扣余额，user_buy_record中tradeMoney金额为0
				if costModel == 0 {
					rechargeAmount = tradeMoney
					leftNum += testNum
				} else if costModel == 1 {
					leftNum = 0
					//扣余额，把赠送量转化成金额
					freeMoney := testNum * product.UnitPrice
					log.Println(freeMoney, "freeMoney")
					remark = "充值金额为：" + strconv.Itoa(tradeMoney) + ",赠送金额为：" + strconv.Itoa(freeMoney)
					tradeMoney += freeMoney
				}
				userProduct.LeftNum = leftNum
				//生用户产品
				err := tx.Create(userProduct).Error
				if err != nil {
					log.Printf("appID:[%s],productId:[%d] execute insert user_product error:[%v]", appId, productId, err)
					tx.Rollback()
					return err
				}
				userProductId := userProduct.ID
				//生成购买产品记录
				err = tx.Exec("insert into user_buy_record (`app_id`,`product_id`,`user_product_id`,`before`,`after`,`trade_money`,`buy_type`,`history_unit_price`) values (?,?,?,?,?,?,?,?)", appId, productId, userProductId, 0, leftNum, rechargeAmount, buyType, historyUnitPrice).Error
				if err != nil {
					log.Printf("appID:[%s],productId[%d],trade_money:[%d] execute insert into user_buy_record error:[%v]", appId, productId, tradeMoney, err)
					tx.Rollback()
					return err
				}
				//扣费类型是扣余额，充值用户余额
				if costModel == 1 {
					userAccount := model.UserAccount{}
					err = tx.First(&userAccount, model.UserAccount{AppID: appId}).Error
					if err != nil {
						log.Printf("appID:[%s],productId[%d],trade_money:[%d] execute find user_account error:[%v]", appId, productId, tradeMoney, err)
						tx.Rollback()
						return err
					}
					moneyBefore := userAccount.Money
					moneyAfter := userAccount.Money + tradeMoney
					//充值
					err := tx.Exec("update user_account set money = ? WHERE `app_id` = ?", moneyAfter, appId).Error
					if err != nil {
						log.Printf("appID:[%s],money:[%d] execute update 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) values (?,?,?,?,?)", appId, moneyBefore, moneyAfter, tradeMoney, remark).Error
					if err != nil {
						log.Printf("appID:[%s],trade_money:[%d] execute insert into user_money_record error:[%v]", appId, tradeMoney, err)
						tx.Rollback()
						return err
					}
				}
				return nil
			})
			if errs == nil {
				global.Logger.Info("用户已购买产品失败：", zap.Any("appId:", appId), zap.Any("productId:", productId))
				continue
			}
		} else {
			haveProductId += "[" + strconv.Itoa(productId) + "]"
			global.Logger.Info("用户已购买过该产品", zap.Any("appId:", appId), zap.Any("productId:", productId))
			continue
		}
	}
	return 1, haveProductId, nil
}

func UserProductList(appId string, c *gin.Context) {
	userProduct := []model.UserProduct{}
	err := db.GetSFISDB().Where("app_id = ? and ", appId).Find(&userProduct).Error
	if err != nil {
		log.Printf("appID:[%s] find into user_product error:[%v]", appId, err)
		response.FailWithMessage("查询出错", c)
	} else {
		response.OkWithData(userProduct, c)
	}
}

//创建用户
func CreateUser(user model.User) (model.User, error) {
	var tempUser []model.User
	// 判断用户名是否重复
	db.GetSFISDB().Where("name = ?", user.Name).Find(&tempUser)
	if len(tempUser) > 0 {
		global.Logger.Error("userCreate Error", zap.Any("user", user), zap.Any("error", "用户名已存在"))
		return user, errors.New("用户名已存在")
	}
	// 判断手机号是否重复
	var tempUser_ []model.User
	db.GetSFISDB().Where("phone = ?", user.Phone).Find(&tempUser_)
	if len(tempUser_) > 0 {
		global.Logger.Error("userCreate Error", zap.Any("user", user), zap.Any("error", "手机号已存在"))
		return user, errors.New("手机号已存在")
	}
	errs := db.GetSFISDB().Transaction(func(tx *gorm.DB) error {
		// 新增用户
		err := tx.Create(&user).Error
		if err != nil {
			global.Logger.Error("userCreate Error", zap.Any("user", user), zap.Any("error", err))
			tx.Rollback()
			return err
		}
		// 初始化用户账户
		userAccount := model.UserAccount{AppID: user.AppID, Money: 0}
		err = tx.Create(&userAccount).Error
		if err != nil {
			global.Logger.Error("userAccountInit Error", zap.Any("user", user), zap.Any("userAccount", userAccount), zap.Any("error", err))
			tx.Rollback()
			return err
		}
		return nil
	})
	if errs != nil {
		global.Logger.Error("userCreate Error", zap.Any("user", user), zap.Any("error", errs))
		return user, errors.New("创建失败")
	} else {
		global.Logger.Info("userCreate Success", zap.Any("user", user))
		// 生全局内存锁
		lock.MainLock.Lock()
		lock.UserLockMap[user.AppID] = &sync.Mutex{}
		lock.MainLock.Unlock()
		return user, nil
	}

}