// ===========================================
// 多班级版班级管理系统 - Go 后端
//
// 开发者: Canglan
// 联系方式: admin@sea-studio.top
// 版权归属: Sea Network Technology Studio
// 许可证: Apache License 2.0
//
// 版权所有 © Sea Network Technology Studio
// ===========================================

package model

import "time"

// AttendanceRecord 考勤记录模型，对应 attendance_records 表
type AttendanceRecord struct {
	AttendanceID      int        `gorm:"column:attendance_id;primaryKey;autoIncrement" json:"attendance_id"`
	StudentID         int        `gorm:"column:student_id;not null" json:"student_id"`
	Date              time.Time  `gorm:"column:date;type:date;not null;index:idx_date" json:"date"`
	Slot              string     `gorm:"column:slot;type:enum('morning','afternoon','evening');default:'morning'" json:"slot"`
	Status            string     `gorm:"column:status;type:enum('present','absent','late','leave');default:'present'" json:"status"`
	Reason            *string    `gorm:"column:reason;type:varchar(255)" json:"reason"`
	RecorderID        int        `gorm:"column:recorder_id;not null" json:"recorder_id"`
	DeductionApplied  int8       `gorm:"column:deduction_applied;default:0" json:"deduction_applied"`
	DeductionRecordID *int64     `gorm:"column:deduction_record_id" json:"deduction_record_id"`
	SemesterID        *int       `gorm:"column:semester_id;index:idx_attendance_semester" json:"semester_id"`
	CreatedAt         time.Time  `gorm:"column:created_at;autoCreateTime" json:"created_at"`

	// 虚拟字段（JOIN 查询时使用）
	StudentName *string `gorm:"-" json:"student_name,omitempty"`
	StudentNo   *string `gorm:"-" json:"student_no,omitempty"`
}

// TableName 指定表名
func (AttendanceRecord) TableName() string {
	return "attendance_records"
}