<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Support\Str;

class Category extends Model
{
    use SoftDeletes;

    protected $fillable = [
        'name',
        'slug',
        'description',
        'color',
        'is_active',
        'sort_order',
        'created_by',
    ];

    protected $casts = [
        'is_active' => 'boolean',
        'sort_order' => 'integer',
    ];

    // Auto-generate slug jika tidak disediakan
    protected static function booted(): void
    {
        static::creating(function (Category $category) {
            if (empty($category->slug)) {
                $category->slug = Str::slug($category->name);
            }
        });
    }

    // === Relationships ===

    public function documents(): HasMany
    {
        return $this->hasMany(Document::class);
    }

    public function knowledgeItems(): HasMany
    {
        return $this->hasMany(KnowledgeItem::class);
    }

    public function creator()
    {
        return $this->belongsTo(User::class, 'created_by');
    }

    // === Scopes ===

    public function scopeActive(Builder $query): Builder
    {
        return $query->where('is_active', true);
    }

    public function scopeOrdered(Builder $query): Builder
    {
        return $query->orderBy('sort_order')->orderBy('name');
    }

    // === Accessors ===

    public function getActiveDocumentCountAttribute(): int
    {
        return $this->documents()->where('is_active', true)->count();
    }
}