<?php

namespace App\Models;

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

class Tag extends Model
{
    use HasFactory;

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

    protected static function boot()
    {
        parent::boot();

        static::creating(function ($tag) {
            if (empty($tag->slug)) {
                $tag->slug = Str::slug($tag->name);
            }
        });
    }

    public function posts(): BelongsToMany
    {
        return $this->belongsToMany(Post::class)->withTimestamps();
    }

    public function publishedPosts(): BelongsToMany
    {
        return $this->belongsToMany(Post::class)
            ->withTimestamps()
            ->where('status', 'published')
            ->where('published_at', '<=', now());
    }
}

