<?php

namespace App\Models;

use App\Enums\ChatSessionStatus;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\HasMany;

class ChatSession extends Model
{
    use HasFactory;

    protected $primaryKey = 'session_id';

    public $incrementing = false;

    protected $keyType = 'string';

    protected $fillable = [
        'session_id',
        'session_name',
        'status',
        'last_seq',
        'last_message_id',
    ];

    protected function casts(): array
    {
        return [
            'last_seq' => 'integer',
        ];
    }

    public function messages(): HasMany
    {
        return $this->hasMany(Message::class, 'session_id', 'session_id');
    }

    public function isClosed(): bool
    {
        return $this->status === ChatSessionStatus::CLOSED;
    }

    public function isLocked(): bool
    {
        return $this->status === ChatSessionStatus::LOCKED;
    }
}