using Furion.EventBus;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Myshipping.Core.Entity;
using Myshipping.Core;
using RabbitMQ.Client;
using RabbitMQ.Client.Events;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Newtonsoft.Json.Linq;
using Newtonsoft.Json;

namespace Myshipping.Application.MQ
{
    public class BookingAutoService : BackgroundService
    {
        private readonly IServiceScopeFactory _scopeFactory;
        private readonly IServiceScope _serviceScope;
        private readonly ILogger<BookingAutoService> _logger;
        private readonly IEventPublisher _publisher;
        private IConnection mqConn;
        private IModel model;

        public BookingAutoService(IServiceScopeFactory scopeFactory)
        {
            _scopeFactory = scopeFactory;
            //通过这个注入DBContext
            _serviceScope = _scopeFactory.CreateScope();
            _logger = _serviceScope.ServiceProvider.GetService<ILogger<BookingAutoService>>();
            _publisher = _serviceScope.ServiceProvider.GetService<IEventPublisher>();
        }

        protected override Task ExecuteAsync(CancellationToken stoppingToken)
        {
            _logger.LogInformation("BookingAutoService ExecuteAsync");

            return Task.Run(() =>
            {
                _logger.LogInformation("BookingAutoService ExecuteAsync RunTask");

                //绑定队列
                BindMQ();
            });
        }

        private void BindMQ()
        {
            string ExchangeName = "djy.booking.auto";
            string QueueName = $"djy.booking.auto.{DateTime.Now.Ticks}";


            ConnectionFactory factory = new ConnectionFactory();
            var repoSysCfg = _serviceScope.ServiceProvider.GetService<SqlSugarRepository<SysConfig>>();
            var mqUrl = repoSysCfg.FirstOrDefault(x => x.Code == "DjyBookingAutoMQUrl")?.Value;
            if (string.IsNullOrEmpty(mqUrl))
            {
                _logger.LogError($"接收订舱自动化消息推送所需MQUrl未配置");
            }
            else
            {
                _logger.LogInformation($"准备连接订舱自动化消息队列：{mqUrl}");
                factory.Uri = new Uri(mqUrl);
                mqConn = factory.CreateConnection("大简云订舱平台");

                model = mqConn.CreateModel();
                model.ExchangeDeclare(ExchangeName, ExchangeType.Topic);
                model.QueueDeclare(QueueName, false, false, true, null);
                model.QueueBind(QueueName, ExchangeName, "*", null);

                var consumer = new EventingBasicConsumer(model);
                consumer.Received += (obj, arg) =>
                {
                    var body = arg.Body;
                    var strBody = Encoding.UTF8.GetString(body.ToArray());
                    _logger.LogInformation($"收到订舱自动化消息队列：{strBody}");

                    if (arg.RoutingKey == "BC") //收到BC
                    {
                        var dto = JsonConvert.DeserializeObject<BookingAutoMessageBC>(strBody);
                        _publisher.PublishAsync(new ChannelEventSource("BookingAuto:BC", dto));
                    }
                    else if (arg.RoutingKey == "DraftDownloadOk") //DRAFT下载完成
                    {

                    }
                };
                model.BasicConsume(QueueName, true, consumer);
            }
        }

        public override void Dispose()
        {
            base.Dispose();
            _serviceScope.Dispose();
            if (mqConn != null && mqConn.IsOpen)
                mqConn.Close();

            _logger.LogInformation("BookingAutoService Dispose");
        }
    }

    /// <summary>
    /// BC消息对象
    /// </summary>
    public class BookingAutoMessageBC
    {
        /// <summary>
        /// 租户ID
        /// </summary>
        public long TenantId { get; set; }

        /// <summary>
        /// 大简云公司ID
        /// </summary>
        public string CompanyId { get; set; }

        /// <summary>
        /// 船司
        /// </summary>
        public string Carrier { get; set; }

        /// <summary>
        /// 提单号
        /// </summary>
        public string MBLNO { get; set; }

        /// <summary>
        /// 订舱号
        /// </summary>
        public string BookingNO { get; set; }

        /// <summary>
        /// 链接地址
        /// </summary>
        public string Url { get; set; }

        /// <summary>
        /// 附件地址
        /// </summary>
        public string AttachUrl { get; set; }

    }
}