package model

import "time"

// File 文件模型
type File struct {
	ID              uint64    `json:"id" gorm:"primaryKey;autoIncrement"`
	Name            string    `json:"name" gorm:"size:256;not null"`
	Extension       string    `json:"extension" gorm:"size:32"`
	FolderID        uint64    `json:"folder_id" gorm:"index;not null"`
	OwnerID         uint64    `json:"owner_id" gorm:"index;not null"`
	Size            int64     `json:"size" gorm:"default:0"`
	MD5             string    `json:"md5" gorm:"size:32;index"`
	SHA256          string    `json:"sha256" gorm:"size:64"`
	StorageKey      string    `json:"storage_key" gorm:"size:512;not null"`
	StoragePolicyID uint64    `json:"storage_policy_id" gorm:"index;default:1"`
	MimeType        string    `json:"mime_type" gorm:"size:128"`
	IsFavorite      int8      `json:"is_favorite" gorm:"default:0"`
	Status          int8      `json:"status" gorm:"default:1"`
	DownloadCount   int       `json:"download_count" gorm:"default:0"`
	Version         int       `json:"version" gorm:"default:1"` // 乐观锁版本号
	CreatedAt       time.Time `json:"created_at"`
	UpdatedAt       time.Time `json:"updated_at"`
}

// TableName 指定表名
func (File) TableName() string {
	return "fs_file"
}

// FileAssociation 业务文件关联模型
// 用于兼容 OA 系统的文件关联
type FileAssociation struct {
	ID        uint64    `json:"id" gorm:"primaryKey;autoIncrement"`
	BizID     string    `json:"biz_id" gorm:"size:128;index;not null"`
	BizType   string    `json:"biz_type" gorm:"size:64;index;not null"`
	FileID    uint64    `json:"file_id" gorm:"not null"`
	CreatedAt time.Time `json:"created_at"`
}

// TableName 指定表名
func (FileAssociation) TableName() string {
	return "fs_file_association"
}

// FilePermission 文件权限模型
type FilePermission struct {
	ID        uint64    `json:"id" gorm:"primaryKey;autoIncrement"`
	FileID    uint64    `json:"file_id" gorm:"not null"`
	UserID    uint64    `json:"user_id" gorm:"default:0"`
	RoleID    uint64    `json:"role_id" gorm:"default:0"`
	PermLevel string    `json:"perm_level" gorm:"size:16;default:read"`
	GrantBy   uint64    `json:"grant_by" gorm:"not null"`
	CreatedAt time.Time `json:"created_at"`
}

func (FilePermission) TableName() string {
	return "fs_file_permission"
}