using System.Text;
using RabbitMQ.Client;
using RabbitMQ.Client.Events;

Random rand = new Random();
var factory = new ConnectionFactory { HostName = "localhost" };
using var connection = factory.CreateConnection();
using var channel = connection.CreateModel();

string queueName = $"courier{rand.Next()}";

channel.QueueDeclare(queue: queueName);
channel.QueueBind(queue: queueName,
    exchange: "post",
    routingKey: string.Empty);

Console.WriteLine(" [*] Ожидание сообщения.");

var consumer = new EventingBasicConsumer(channel);
consumer.Received += async (model, ea) =>
{
    byte[] body = ea.Body.ToArray();
    var message = Encoding.UTF8.GetString(body);

    int waitTime = rand.Next(20, 90);
    Thread.Sleep(waitTime * 100);

    string outputText = $"Курьер с письмом потратил {waitTime} минут и доставил письмо {message}";
    Console.WriteLine($" [x] Сделано. {outputText}");
    channel.BasicAck(deliveryTag: ea.DeliveryTag, multiple: false);
};
channel.BasicConsume(queue: queueName,
    autoAck: false,
    consumer: consumer);

Console.WriteLine(" Нажми [enter] чтобы выйти.");
Console.ReadLine();