eatvio-infra/app/Models/Chat.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Chat extends Model
{
    use HasFactory;

    protected $casts = ['created_at' => 'datetime:Y-m-d H:i:s'];

    public function scopeWithLastUserMessage(mixed $query, int $userId)
    {
        return $query
            ->where('from_user_id', $userId)
            ->orWhere('to_user_id', $userId)
            ->orderBy('updated_at', 'desc')
            ->first();
    }

    public function scopeWithLastTenMessages(mixed $query, int $userId, int $recipientId)
    {
        return $query
            ->where('from_user_id', $userId)
            ->where('to_user_id', $recipientId)
            ->orWhere(function ($query) use ($userId, $recipientId) {
                return $query->where('from_user_id', $recipientId)
                    ->where('to_user_id', $userId);
            })
            ->orderBy('created_at', 'desc')
            ->limit(20);
    }

    public function scopeWithLastMessage(mixed $query, int $userId, int $recipientId)
    {
        return $query
            ->where('from_user_id', $userId)
            ->where('to_user_id', $recipientId)
            ->orWhere(function ($query) use ($userId, $recipientId) {
                return $query->where('from_user_id', $recipientId)
                    ->where('to_user_id', $userId);
            })
            ->orderBy('created_at', 'desc')
            ->first();
    }
}