<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Support\Str;
use App\Events\PostPublished;
use App\Events\PostScheduled;

class Post extends Model
{
    use HasFactory, SoftDeletes;

    protected $fillable = [
        'title',
        'slug',
        'content',
        'status',
        'published_at',
        'scheduled_at',
    ];

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

    protected $dispatchesEvents = [
        'created' => PostPublished::class,
    ];

    // Автоматическое создание slug
    protected static function boot()
    {
        parent::boot();
        
        static::creating(function ($post) {
            if (empty($post->slug)) {
                $baseSlug = \Illuminate\Support\Str::slug($post->title);
                $slug = $baseSlug;
                $counter = 1;

                while (static::where('slug', $slug)->exists()) {
                    $slug = $baseSlug . '-' . $counter;
                    $counter++;
                }
                $post->slug = $slug;
            }
        });
    }

    // Связь с комментариями
    public function comments()
    {
        return $this->hasMany(Comment::class);
    }

    // Только опубликованные посты
    public function scopePublished($query)
    {
        return $query->where('status', 'published')
                    ->whereNotNull('published_at')
                    ->where('published_at', '<=', now());
    }

    // Посты, готовые к автопубликации
    public function scopeReadyForPublishing($query)
    {
        return $query->where('status', 'scheduled')
                    ->whereNotNull('scheduled_at')
                    ->where('scheduled_at', '<=', now());
    }

    // Публикация поста
    public function publish()
    {
        $this->update([
            'status' => 'published',
            'published_at' => now(),
        ]);
        
        event(new PostPublished($this));
    }

    // Снятие с публикации
    public function unpublish()
    {
        $this->update([
            'status' => 'draft',
        ]);
    }

    // Планирование публикации
    public function schedule($dateTime)
    {
        $this->update([
            'status' => 'scheduled',
            'scheduled_at' => $dateTime,
        ]);
        
        event(new PostScheduled($this));
    }
}