package model

import (
	"strconv"
	"time"

	"carrot_bbs/internal/pkg/utils"

	"gorm.io/gorm"
)

// GroupAnnouncement 群公告模型
type GroupAnnouncement struct {
	ID        string    `gorm:"primaryKey;size:20" json:"id"`
	GroupID   string    `gorm:"not null;index" json:"group_id"`
	Content   string    `gorm:"type:text;not null" json:"content"`
	AuthorID  string    `gorm:"type:varchar(36);not null" json:"author_id"`
	IsPinned  bool      `gorm:"default:false" json:"is_pinned"`
	CreatedAt time.Time `json:"created_at"`
	UpdatedAt time.Time `json:"updated_at"`
}

// BeforeCreate 创建前生成雪花算法ID
func (ga *GroupAnnouncement) BeforeCreate(tx *gorm.DB) error {
	if ga.ID == "" {
		id, err := utils.GetSnowflake().GenerateID()
		if err != nil {
			return err
		}
		ga.ID = strconv.FormatInt(id, 10)
	}
	return nil
}

// TableName 指定表名
func (GroupAnnouncement) TableName() string {
	return "group_announcements"
}