<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Support\Str;

class Post extends Model
{
    protected $fillable = ['title', 'slug', 'category', 'content', 'author_id', 'published_at'];

    protected $casts = ['published_at' => 'datetime'];

    protected static function booted(): void
    {
        static::creating(function (Post $post) {
            $post->slug ??= Str::slug($post->title);
        });
    }

    public function author(): BelongsTo
    {
        return $this->belongsTo(User::class, 'author_id');
    }

    public function scopePublished($query)
    {
        return $query->whereNotNull('published_at')->where('published_at', '<=', now());
    }
}