<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class ForumTopic extends Model
{
    protected $fillable = [
        'thread_id',
        'user_id',
        'title',
        'content',
        'is_pinned',
        'last_activity_at',
    ];

    protected $casts = [
        'is_pinned' => 'boolean',
        'last_activity_at' => 'datetime',
    ];

    /**
     * Get the thread that owns the topic.
     */
    public function thread()
    {
        return $this->belongsTo(ForumThread::class, 'thread_id');
    }

    /**
     * Get the user that owns the topic.
     */
    public function user()
    {
        return $this->belongsTo(User::class);
    }

    /**
     * Get the posts for the topic.
     */
    public function posts()
    {
        return $this->hasMany(ForumPost::class, 'topic_id');
    }
}