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

namespace Kean.Domain.Task.CommandHandlers
{
    /// <summary>
    /// 任务执行命令处理程序
    /// </summary>
    public sealed class ExecuteCommandHandler : CommandHandler<ExecuteCommand>
    {
        private readonly ICommandBus _commandBus; // 命令总线
        private readonly ITaskRepository _taskRepository; // 任务仓库
        private readonly StockProxy _stockProxy; // 库房仓库

        /// <summary>
        /// 依赖注入
        /// </summary>
        public ExecuteCommandHandler(
            ICommandBus commandBus,
            StockProxy stockProxy,
            ITaskRepository taskRepository)
        {
            _commandBus = commandBus;
            _taskRepository = taskRepository;
            _stockProxy = stockProxy;
        }

        /// <summary>
        /// 处理程序
        /// </summary>
        public override async System.Threading.Tasks.Task Handle(ExecuteCommand command, CancellationToken cancellationToken)
        {
            if (command.ValidationResult.IsValid)
            {
                await _taskRepository.UpdateStatus(command.Id, TaskState.Running);

                try
                {
                    var task = await _taskRepository.GetTask(command.Id);
                    if(task.Type == TaskType.Infeed)
                        await _stockProxy.Reupload(task.Type.ToString(), task.Barcode, task.RequestNo, "1");
                }
                catch { }

            }
            else
            {
                await _commandBus.Notify(command.ValidationResult,
                    cancellationToken: cancellationToken);
            }
        }
    }
}