<?php
// +----------------------------------------------------------------------
// | YwxApp [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2026-2036 http://ywxapp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: ywxapp<admin@ywxapp.cn>
// +----------------------------------------------------------------------
declare (strict_types = 1);

namespace addon\haonav\model;

use ywxapp\model\BaseModel;


class Category extends BaseModel
{
    
    protected function getOptions(): array
    {
        // 所有的参数配置统一返回
        return [
            'strict' => false,
            'name' => 'haonav_category',
            // 'connection' => '',
            // 'query' => [],
            // 'type' => [],
            // 'hidden' => [],
            // 'visible' => [],
            // 'append' => [],
            'autoRelation' => [],
            'createTime' => 'create_at',
            'updateTime' => 'update_at',
            'dateFormat' => 'Y-m-d H:i:s',
        ];
    }

    
    public function links()
    {
        return $this->hasMany(Links::class, 'cid', 'id');
    }

    /**
     * 二级分类（pid 指向自身）
     */
    public function children()
    {
        return $this->hasMany(self::class, 'pid', 'id')->where('status', 1)->order('sort', 'desc');
    }

    /**
     * 按二级分类分组的链接（首页/分类页用）
     * 返回二级分类及其下属链接，sub_cid=0 的链接归入「常用」
     */
    public function subLinks()
    {
        return $this->hasMany(Links::class, 'sub_cid', 'id')
            ->where('status', 1)->order('click_count', 'desc');
    }

    /**
     * 删除前保护：存在子分类或下属链接时禁止删除，避免产生孤儿数据
     * @param \think\Model $model
     * @throws \think\Exception
     */
    public static function onBeforeDelete($model)
    {
        $childCount = self::where('pid', $model->id)->count();
        if ($childCount > 0) {
            throw new \think\Exception('该分类下还存在 ' . $childCount . ' 个子分类，请先处理子分类');
        }
        $linkCount = \addon\haonav\model\Links::where('cid', $model->id)->count();
        if ($linkCount > 0) {
            throw new \think\Exception('该分类下还存在 ' . $linkCount . ' 个链接，请先移走或删除这些链接');
        }
    }
}