<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use EloquentFilter\Filterable;
use Illuminate\Database\Eloquent\Casts\Attribute;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Str;

/**
 * 文章分类
 */
class ArticleCategory extends Model
{
    use Filterable;

    protected $casts = [
        'created_at' => 'datetime:Y-m-d H:i:s',
        'updated_at' => 'datetime:Y-m-d H:i:s',
        'is_enable' => 'boolean',
    ];

    protected $fillable = ['icon', 'is_enable', 'level', 'name', 'parent_id', 'path', 'sort'];

    protected function icon(): Attribute
    {
        return Attribute::make(
            get: fn($value) => $value ? (Str::startsWith($value, ['http://', 'https://']) ? $value : Storage::url($value)) : '',
        );
    }

    public function parent()
    {
        return $this->belongsTo(static::class, 'parent_id');
    }

    public function children()
    {
        return $this->hasMany(static::class, 'parent_id');
    }

    public function articles()
    {
        return $this->hasMany(Article::class, 'category_id');
    }

    public function scopeSort($q)
    {
        return $q->orderBy('sort', 'desc');
    }

    public function scopeEnable($q)
    {
        return $q->where('is_enable', 1);
    }
    
    public function modelFilter()
    {
        return \App\Filters\ArticleCategoryFilter::class;
    }
}