package model

import "time"

// SeqType 序列类型
type SeqType string

const (
	SeqTypeTrade   SeqType = "TRADE"
	SeqTypeRefund  SeqType = "REFUND"
	SeqTypeSharing SeqType = "SHARING"
)

// OrderSequence 订单编码序列
type OrderSequence struct {
	ID           uint64    `gorm:"column:id;primaryKey;autoIncrement"`
	AppID        string    `gorm:"column:app_id;size:32;not null;uniqueIndex:uk_app_type"`
	SeqType      SeqType   `gorm:"column:seq_type;size:20;not null;uniqueIndex:uk_app_type"`
	Prefix       string    `gorm:"column:prefix;size:8;not null"`
	CurrentValue uint64    `gorm:"column:current_value;not null;default:0"`
	Step         int       `gorm:"column:step;not null;default:1"`
	UpdatedAt    time.Time `gorm:"column:updated_at;autoUpdateTime:milli"`
}

func (OrderSequence) TableName() string { return "order_sequence" }