using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using RabbitMQ.Client;
using RabbitMQ.Client.Events;

namespace DS.WMS.FeeBillRecvService
{
    public class RecvFeeBillWorker : BackgroundService
    {
        private readonly ILogger<RecvFeeBillWorker> _logger;
        private IConnection mqConn;
        private IModel model;

        public RecvFeeBillWorker(ILogger<RecvFeeBillWorker> logger)
        {
            _logger = logger;
        }


        public override async Task StartAsync(CancellationToken stoppingToken)
        {
            try
            {
                //while (!stoppingToken.IsCancellationRequested)
                //{
                //    _OpServer = new BackgroundJobServer(new BackgroundJobServerOptions
                //    {
                //        SchedulePollingInterval = TimeSpan.FromMinutes(1),
                //        ServerName = "OpWorkService",
                //        Queues = new[] { "op" }
                //    });
                //    await Task.Delay(TimeSpan.FromMinutes(1), stoppingToken);
                //}
            }
            catch (OperationCanceledException ex)
            {
                Console.WriteLine(ex.ToString());
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.ToString());
                //Environment.Exit(1);
            }

        }

        protected override Task ExecuteAsync(CancellationToken stoppingToken)
        {
            _logger.LogInformation("启动j账单 ExecuteAsync");

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

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

        }

        private void BindMQ()
        {
            string ExchangeName = "billcenter.output.ds7new.444c19c1-0bf5-4709-a08b-c9859ca775e6";
            string QueueName = $"billcenter.output.ds7new.444c19c1-0bf5-4709-a08b-c9859ca775e6";

            ConnectionFactory factory = new ConnectionFactory();

            //var repoSysCfg = _serviceScope.ServiceProvider.GetService<SqlSugarRepository<SysConfig>>();

            var mqUrl = "amqp://djy_mail:djymailqwe@47.104.207.5:12567/djy_email_parser";
            //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("东胜8接收账单邮件解析");

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

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

            _logger.LogInformation("BookingAutoService Dispose");
        }

        private async Task DoWork(CancellationToken cancellationToken)
        {
            // 这里放你的业务逻辑代码
            await Task.CompletedTask;
        }
    }
}