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

namespace Kean.Domain.Task.CommandHandlers
{
    /// <summary>
    /// 任务中转命令处理程序
    /// </summary>
    public sealed class TransferRelocateCommandHandler : CommandHandler<TransferRelocateCommand>
    {
        private readonly ICommandBus _commandBus; // 命令总线
        private readonly ITaskRepository _taskRepository; // 任务仓库
        private readonly IWarehouseRepository _warehouseRepository; // 库房仓库
        private readonly StockProxy _stockProxy; // 仓储域

        /// <summary>
        /// 依赖注入
        /// </summary>
        public TransferRelocateCommandHandler(
            ICommandBus commandBus,
            IMapper mapper,
            ITaskRepository taskRepository,
            IWarehouseRepository warehouseRepository,
            StockProxy stockProxy)
        {
            _commandBus = commandBus;
            _taskRepository = taskRepository;
            _warehouseRepository = warehouseRepository;
            _stockProxy = stockProxy;
        }

        /// <summary>
        /// 处理程序
        /// </summary>
        public override async System.Threading.Tasks.Task Handle(TransferRelocateCommand command, CancellationToken cancellationToken)
        {
            if (command.ValidationResult.IsValid)
            {
                var task = await _taskRepository.GetTask(command.Id);

                await _taskRepository.UpdateStatus(command.Id, TaskState.Running);

                if (task != null && (task.Type == TaskType.PalletOut || task.Type == TaskType.ApplyOut || task.Type == TaskType.Outfeed))
                {
                    var outStation = await _warehouseRepository.GetStationById(task.Destination);
                    await _stockProxy.Relocate(
                        "Transfer", 
                        task.Barcode, 
                        null,
                        task.Original,
                        Convert.ToInt32(outStation.Group), 
                        //task.Operator, 
                        -1,
                        task.Tag,
                        (task.Timestamp,DateTime.Now));
                    await _taskRepository.UpdateTransitPlace(command.Id, Convert.ToInt32(outStation.Group));

                    await _warehouseRepository.ReleaseCell(task.Original, task.Destination);
                }
            }
            else
            {
                await _commandBus.Notify(command.ValidationResult,
                    cancellationToken: cancellationToken);
            }
        }
    }
}