package models

import (
	"time"

	"gorm.io/gorm"
)

// Bookmark 书签结构体
type Bookmark struct {
	ID           int64          `json:"id" gorm:"primaryKey"`
	Name         string         `json:"name" gorm:"not null;index;size:255"`
	Link         *string        `json:"link" gorm:"type:url"`
	Detail       *string        `json:"detail" gorm:"type:text"`
	Description  *string        `json:"description" gorm:"type:text"`
	ParentPathID int64          `json:"parent_path_id" gorm:"index;not null;default:1"`
	CreatedAt    time.Time      `json:"created_at" gorm:"autoCreateTime"`
	UpdatedAt    time.Time      `json:"updated_at" gorm:"autoUpdateTime"`
	DeletedAt    gorm.DeletedAt `json:"deleted_at" gorm:"index"`
}

// Folder 文件夹结构体
type Folder struct {
	ID           int64          `json:"id" gorm:"primaryKey"`
	Name         string         `json:"name" gorm:"not null;index;size:255"`
	ParentPathID int64          `json:"parent_path_id" gorm:"index;not null;default:1"`
	CreatedAt    time.Time      `json:"created_at" gorm:"autoCreateTime"`
	UpdatedAt    time.Time      `json:"updated_at" gorm:"autoUpdateTime"`
	DeletedAt    gorm.DeletedAt `json:"deleted_at" gorm:"index"`
}

// IsValidParent 检查父文件夹ID是否有效
func (f *Folder) IsValidParent(db *gorm.DB, parentID int64) bool {
	// 检查父文件夹是否存在且未被删除
	if err := db.Where("id = ?", parentID).First(&Folder{}).Error; err != nil {
		return false
	}

	// 防止循环引用（不能将文件夹设置为自己的子文件夹）
	if parentID == f.ID {
		return false
	}

	return true
}

// IsValidParent 检查书签的父文件夹ID是否有效
func (b *Bookmark) IsValidParent(db *gorm.DB, parentID int64) bool {
	// 检查父文件夹是否存在且未被删除
	if err := db.Where("id = ?", parentID).First(&Folder{}).Error; err != nil {
		return false
	}

	return true
}