<?php
namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class tg_chats extends Model{
    protected $primaryKey = 'chat_id';
    public $incrementing = false; // Telegram 的 chat_id 是 bigint，可為負數
    protected $keyType = 'string';
    protected $fillable = [
        'chat_id',
        'type',
        'title',
        'username',
        'description',
        'invite_link',
        'photo_small_file_id',
        'photo_big_file_id',
    ];

    protected $casts = [
        'chat_id' => 'integer',
        'type' => 'string',
        'title' => 'string',
        'username' => 'string',
        'description' => 'string',
        'invite_link' => 'string',
        'photo_small_file_id' => 'string',
        'photo_big_file_id' => 'string',
        'created_at' => 'datetime',
        'updated_at' => 'datetime',
    ];

}