package model

import (
	"approveflow/app/base"
	"encoding/json"
)

// ApprovalReversal 审批反转表
type ApprovalReversal struct {
	InstanceID      int64  `gorm:"type:bigint;index;not null" json:"instance_id"`           // 关联的审批实例ID
	StepID          int64  `gorm:"type:bigint;index;not null" json:"step_id"`               // 关联的步骤ID
	StepKey         string `gorm:"type:varchar(50);index;not null" json:"step_key"`         // 关联的步骤ID
	ReversedStepKey string `gorm:"type:varchar(50);index;not null" json:"reversed_step_id"` // 反转的步骤ID
	FixAction       string `gorm:"type:varchar(100);not null" json:"fix_action"`            // 修正动作
	Reason          string `gorm:"type:text" json:"reason"`                                 // 反转原因
	base.Model
}

// FixAction 定义常量表示审批反转的修正动作
const (
	FixActionReApproveAndUpdateData = "ReApproveAndUpdateData"
	FixActionReApprove              = "ReApprove"        // 重新审批
	FixActionReassignApprover       = "ReassignApprover" // 重新指定审批人
	FixActionRollback               = "Rollback"         // 回滚到某个步骤
	FixActionUpdateData             = "UpdateData"       // 更新审批数据
	FixActionReopen                 = "Reopen"           // 重新打开审批流程
)

func (reversal *ApprovalReversal) MarshalBinary() ([]byte, error) {
	return json.Marshal(reversal)
}

func (reversal *ApprovalReversal) UnmarshalBinary(data []byte) error {
	return json.Unmarshal(data, reversal)
}

func NewReversal(step *InstanceStep, reversedStep *InstanceStep, reason string, fixAction string) *ApprovalReversal {
	reversal := &ApprovalReversal{
		StepID:          step.ID,
		StepKey:         step.Key,
		ReversedStepKey: reversedStep.Key,
		FixAction:       fixAction,
		Reason:          reason,
	}
	return reversal
}

// FixIssue 执行修正操作
func (reversal *ApprovalReversal) FixIssue(instance *ApprovalInstance, action, reason string) error {
	reversal.InstanceID = instance.ID
	reversal.FixAction = action
	reversal.Reason = reason
	// 根据修正动作进行修正逻辑
	return nil
}