package models

import (
	"time"

	"git.apinb.com/bsm-sdk/core/database"
)

// GasorderContractRevision 对应 gasorder_contract_revision，保存唯一合同的不可变变更快照。
type GasorderContractRevision struct {
	Entity                        // 公共实体字段
	GasorderContractID uint64     `gorm:"column:gasorder_contract_id;not null;index" json:"gasorder_contract_id"`                 // 合同自增主键
	Action             string     `gorm:"column:action;type:varchar(32);not null;index" json:"action"`                            // 合同变更动作
	ContractStatus     int        `gorm:"column:contract_status;not null" json:"contract_status"`                                 // 合同状态快照
	EffectiveAt        time.Time  `gorm:"column:effective_at;type:timestamptz;not null" json:"effective_at"`                      // 生效时间快照
	ExpiredAt          *time.Time `gorm:"column:expired_at;type:timestamptz" json:"expired_at"`                                   // 到期时间快照
	OperatorIdentity   string     `gorm:"column:operator_identity;type:varchar(36);not null;default:''" json:"operator_identity"` // 操作人标识
	OperatorName       string     `gorm:"column:operator_name;type:varchar(64);not null;default:''" json:"operator_name"`         // 操作人姓名快照
	OccurredAt         time.Time  `gorm:"column:occurred_at;type:timestamptz;not null;index" json:"occurred_at"`                  // 发生时间
	Reason             string     `gorm:"column:reason;type:text;not null;default:''" json:"reason"`                              // 变更原因
}

func init()                                               { database.AppendMigrate(&GasorderContractRevision{}) }
func (table *GasorderContractRevision) TableName() string { return "gasorder_contract_revision" }