<?php

/**
 * 文件功能：聊天消息模型
 *
 * 对应原 ASP 文件：内存 Application("_says") 变量 (用数据库做持久化归档)
 *
 * @author   ChatRoom Laravel
 *
 * @version  1.0.0
 */

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Message extends Model
{
    /**
     * The attributes that are mass assignable.
     *
     * @var array<int, string>
     */
    protected $fillable = [
        'room_id',
        'from_user',
        'to_user',
        'content',
        'is_secret',
        'font_color',
        'action',
        'sent_at',
    ];

    /**
     * Get the attributes that should be cast.
     *
     * @return array<string, string>
     */
    protected function casts(): array
    {
        return [
            'sent_at' => 'datetime',
            'is_secret' => 'boolean',
        ];
    }
}