<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Str;

class DocumentTag extends Model
{
    use HasFactory;

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

    /**
     * Boot the model
     */
    protected static function booted()
    {
        static::creating(function ($tag) {
            if (empty($tag->slug)) {
                $tag->slug = Str::slug($tag->name);
            }
        });
    }

    /**
     * Get the documents that have this tag
     */
    public function documents()
    {
        return $this->belongsToMany(Document::class, 'document_document_tag')
            ->withTimestamps();
    }

    /**
     * Get count of active documents with this tag
     */
    public function activeDocuments()
    {
        return $this->belongsToMany(Document::class, 'document_document_tag')
            ->where('status', 'active')
            ->withTimestamps();
    }
}