// Copyright 2022 ROC. All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file.

package jinzhu

import (
	"github.com/rocboss/paopao-ce/internal/core"
	"github.com/rocboss/paopao-ce/internal/core/ms"
	"github.com/rocboss/paopao-ce/internal/dao/jinzhu/dbr"
	"gorm.io/gorm"
	"strings"
	"time"
)

var (
	_ core.UserManageService = (*userManageSrv)(nil)
)

type userManageSrv struct {
	db *gorm.DB
}

func newUserManageService(db *gorm.DB) core.UserManageService {
	return &userManageSrv{
		db: db,
	}
}

func (s *userManageSrv) GetUserByID(id int64) (*ms.User, error) {
	user := &dbr.User{
		Model: &dbr.Model{
			ID: id,
		},
	}
	return user.Get(s.db)
}

func (s *userManageSrv) GetUserByUsername(username string) (*ms.User, error) {
	user := &dbr.User{
		Username: username,
	}
	return user.Get(s.db)
}

func (s *userManageSrv) GetUserByPhone(phone string) (*ms.User, error) {
	user := &dbr.User{
		Phone: phone,
	}
	return user.Get(s.db)
}

func (s *userManageSrv) GetUsersByIDs(ids []int64) ([]*ms.User, error) {
	user := &dbr.User{}
	return user.List(s.db, &dbr.ConditionsT{
		"id IN ?": ids,
	}, 0, 0)
}

func (s *userManageSrv) GetUsersByKeyword(keyword string) ([]*ms.User, error) {
	user := &dbr.User{}
	keyword = strings.Trim(keyword, " ") + "%"
	if keyword == "%" {
		return user.List(s.db, &dbr.ConditionsT{
			"ORDER": "id ASC",
		}, 0, 6)
	} else {
		return user.List(s.db, &dbr.ConditionsT{
			"username LIKE ?": keyword,
		}, 0, 6)
	}
}

func (s *userManageSrv) CreateUser(user *dbr.User) (*ms.User, error) {
	return user.Create(s.db)
}

func (s *userManageSrv) UpdateUser(user *ms.User) error {
	return s.db.Transaction(func(tx *gorm.DB) error {
		//获取用户的账单，判断是否赠送过
		bills, err := (&dbr.WalletStatement{}).List(tx, &dbr.ConditionsT{
			"user_id = ?": user.ID,
			"reason = ?":  "注册赠送",
		}, 0, 1)
		if err != nil {
			return err
		}
		if len(bills) > 0 {
			err = user.Update(s.db)
			if err != nil {
				return err
			}
			return nil
		}

		//查询当前用户的balance
		oldUser, err := s.GetUserByID(user.ID)
		if err != nil {
			return err
		}
		if oldUser.Balance == 0 || oldUser.Balance <= time.Now().Unix() {
			//更新当前用户的balance时间戳，增加14天
			//获取当前时间戳并加上14天
			user.Balance = time.Now().Unix() + 1209600
		} else {
			//更新当前用户的balance时间戳，增加14天
			user.Balance = oldUser.Balance + 1209600
		}

		err = user.Update(s.db)
		if err != nil {
			return err
		}

		// 新增账单
		if err := tx.Create(&dbr.WalletStatement{
			UserID:          user.ID,
			ChangeAmount:    1400,
			BalanceSnapshot: user.Balance,
			Reason:          "注册赠送",
		}).Error; err != nil {
			return err
		}

		//返回nil，事务会被提交
		return nil
	})
}