using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using RabbitMQ.Client;
using System;
using Znyc.Recruitment.Common.Configs;
using Znyc.Recruitment.Common.Helpers;
using Znyc.Recruitment.Evenbus;

namespace Znyc.Recruitment.Api.Extensions
{
    /// <summary>
    /// RabbitMQ启动服务
    /// </summary>
    public static class RabbitMQExtension
    {
        public static void AddRabbitMQSetup(this IServiceCollection services, IHostEnvironment env)
        {
            RabbitMQConfig rabbitMQConfig = new ConfigHelper().Get<AppConfig>("appconfig", env.EnvironmentName).RabbitMQConfig;
            if (services == null)
            {
                throw new ArgumentNullException(nameof(services));
            }

            services.AddSingleton<IRabbitMQPersistentConnection>(sp =>
                {
                    ILogger<RabbitMQPersistentConnection> logger = sp.GetRequiredService<ILogger<RabbitMQPersistentConnection>>();

                    ConnectionFactory factory = new ConnectionFactory()
                    {
                        HostName = rabbitMQConfig.Connection,
                        DispatchConsumersAsync = true
                    };
                    factory.UserName = rabbitMQConfig.UserName;
                    factory.Password = rabbitMQConfig.Password;
                    int retryCount = rabbitMQConfig.RetryCount;
                    return new RabbitMQPersistentConnection(factory, logger, retryCount);
                });
        }
    }
}