SDLC_WMS/Server/Wms.Core.Domain.Task/CommandHandlers/CancelCommandHandler.cs

using AutoMapper;
using Kean.Domain.Task.Commands;
using Kean.Domain.Task.Enums;
using Kean.Domain.Task.Events;
using Kean.Domain.Task.Repositories;
using Kean.Domain.Task.SharedServices.Proxies;
using Newtonsoft.Json;
using System;
using System.Threading;

namespace Kean.Domain.Task.CommandHandlers
{
    /// <summary>
    /// 任务取消命令处理程序
    /// </summary>
    public sealed class CancelCommandHandler : CommandHandler<CancelCommand>
    {
        private readonly ICommandBus _commandBus; // 命令总线
        private readonly IMapper _mapper; // 模型映射
        private readonly ITaskRepository _taskRepository; // 任务仓库
        private readonly IWarehouseRepository _warehouseRepository; // 库房仓库
        private readonly StockProxy _stockProxy; // 库房仓库
        private readonly WcsProxy _wcsProxy;
        private readonly Kean.Infrastructure.Soap.LED.LedService _ledService;

        /// <summary>
        /// 依赖注入
        /// </summary>
        public CancelCommandHandler(
            ICommandBus commandBus,
            IMapper mapper,
            ITaskRepository taskRepository,
            StockProxy stockProxy,
            WcsProxy wcsProxy,
            Kean.Infrastructure.Soap.LED.LedService ledService,
            IWarehouseRepository warehouseRepository)
        {
            _commandBus = commandBus;
            _mapper = mapper;
            _taskRepository = taskRepository;
            _stockProxy = stockProxy;
            _wcsProxy = wcsProxy;
            _ledService = ledService;
            _warehouseRepository = warehouseRepository;
        }

        /// <summary>
        /// 处理程序
        /// </summary>
        public override async System.Threading.Tasks.Task Handle(CancelCommand command, CancellationToken cancellationToken)
        {
            if (command.ValidationResult.IsValid)
            {
                var task = await _taskRepository.GetTask(command.Id);
                if (task != null)
                {
                    await _stockProxy.Reupload(task.Type.ToString(), task.Barcode, task.RequestNo, "3");

                    int? cellId = await _stockProxy.GetCell(task.Barcode);
                    int originalCellId = cellId.HasValue ? cellId.Value : task.Original;

                    await _warehouseRepository.ReleaseCell(task.TransitPlace== 0? originalCellId : task.TransitPlace, task.Destination);
                    await _taskRepository.DeleteTask(command.Id);
                    var @event = _mapper.Map<CancelSuccessEvent>(task);
                    @event.Id = command.Id;
                    @event.Timestamp = DateTime.Now;
                    await _commandBus.Trigger(@event, cancellationToken);

                    await _stockProxy.Record("Cancel",
                            task.Barcode,
                            task.Original,
                            task.Destination,
                            command.Operator,
                            JsonConvert.SerializeObject(new
                            {
                                ManualFlg = command.ManualFlg,
                                Transaction = task.Type.ToString(),
                                Operator = (command.Operator == 0 ? -1 : command.Operator)
                            }),
                            task.Timestamp,
                            DateTime.Now);

                    // 前端人工操作
                    if (command.ManualFlg == 1)
                    {
                        await _wcsProxy.DeleteWcs(task.Id, $"人工取消");
                    }

                    //LED提示
                    string line1 = $"{task.Barcode}出库取消";
                    string line2 = $"请重新上架";

                    await _ledService.Invoke(task.Destination.ToString(), line1, line2);
                }
            }
            else
            {
                await _commandBus.Notify(command.ValidationResult,
                    cancellationToken: cancellationToken);
            }
        }
    }
}