package activitymodel

import (
	"github.com/qit-team/snow-core/db"
	"sync"
	"time"
)

var (
	once sync.Once
	m    *ActivityModel
)

// 实体
type Activity struct {
	Id            int       `xorm:"'id' UNSIGNED INT pk autoincr"`
	Name          string    `xorm:"'name' varchar(255)"`
	Type          string    `xorm:"'type' UNSIGNED TINYINT"`
	State         int       `xorm:"'state' TINYINT"`
	StartTime     time.Time `xorm:"'start_time' datetime"`
	ExpiredTime   time.Time `xorm:"'expired_time' datetime"`
	UsersWhiteId  string    `xorm:"'users_white_id' varchar(50)"`
	Sort          string    `xorm:"'sort' UNSIGNED SMALLINT"`
	Banner        string    `xorm:"'banner' varchar(255)"`
	Stock         int       `xorm:"'stock' int(0)"`
	ProductIds    string    `xorm:"'product_ids' varchar(255)"`
	Limitation    string    `xorm:"'limitation' UNSIGNED TINYINT"`
	LimitationNum string    `xorm:"'limitation_num' UNSIGNED SMALLINT"`
	CumJoinNum    int       `xorm:"'cum_join_num' int(0)"`
	Description   string    `xorm:"'description' varchar(255)"`
	Rule          string    `xorm:"'rule' JSON"`
	CreateTime    time.Time `xorm:"'create_time' datetime"`
	ManagerId     string    `xorm:"'manager_id' UNSIGNED INT"`
	UpdateTime    time.Time `xorm:"'update_time' datetime"`
	DeleteTime    time.Time `xorm:"'Deleted' datetime"`
}

// 表名
func (m *Activity) TableName() string {
	return "activity"
}

// 私有化，防止被外部new
type ActivityModel struct {
	db.Model //组合基础Model，集成基础Model的属性和方法
}

// 单例模式
func GetInstance() *ActivityModel {
	once.Do(func() {
		m = new(ActivityModel)
		//m.DiName = "" //设置数据库实例连接，默认db.SingletonMain
	})
	return m
}