RetryRobotTaskCommandHandler.cs 3.43 KB
using MassTransit;
using Microsoft.Extensions.Logging;
using Rcs.Application.Common;
using Rcs.Application.MessageBus.Commands;
using Rcs.Application.Services.Protocol;
using Rcs.Domain.Entities;
using Rcs.Domain.Extensions;
using Rcs.Domain.Repositories;
using TaskStatus = Rcs.Domain.Entities.TaskStatus;

namespace Rcs.Infrastructure.MessageBus.Handlers.Commands;

/// <summary>
/// 重新执行任务命令处理器
/// 语义:恢复当前任务为已分配,并将其子任务恢复为执行中
/// </summary>
public class RetryRobotTaskCommandHandler : IConsumer<RetryRobotTaskCommand>
{
    private readonly ILogger<RetryRobotTaskCommandHandler> _logger;
    private readonly IRobotTaskRepository _robotTaskRepository;
    private readonly IRobotRepository _robotRepository;
    private readonly IProtocolServiceFactory _protocolServiceFactory;

    public RetryRobotTaskCommandHandler(
        ILogger<RetryRobotTaskCommandHandler> logger,
        IRobotTaskRepository robotTaskRepository,
        IRobotRepository robotRepository,
        IProtocolServiceFactory protocolServiceFactory)
    {
        _logger = logger;
        _robotTaskRepository = robotTaskRepository;
        _robotRepository = robotRepository;
        _protocolServiceFactory = protocolServiceFactory;
    }

    public async Task Consume(ConsumeContext<RetryRobotTaskCommand> context)
    {
        var command = context.Message;
        try
        {
            var task = await _robotTaskRepository.GetByIdWithDetailsAsync(command.TaskId, context.CancellationToken);
            if (task == null)
            {
                await context.RespondAsync(ApiResponse.Failed($"未找到任务ID为 {command.TaskId} 的任务"));
                return;
            }

            if (!task.RobotId.HasValue || task.RobotId.Value == Guid.Empty)
            {
                throw new BusinessException($"任务 {task.TaskCode} 未分配机器人,无法重试恢复");
            }

            var robot = task.Robot
                        ?? await _robotRepository.GetByIdFullDataAsync(task.RobotId.Value, context.CancellationToken);
            if (robot == null)
            {
                throw new BusinessException($"任务 {task.TaskCode} 对应机器人不存在: {task.RobotId}");
            }

            // 先按机器人协议取消当前机器人任务,确保机器人端无旧任务缓存
            var protocolService = _protocolServiceFactory.GetService(robot);
            await protocolService.CancelRobotTasksAsync(robot, context.CancellationToken);

            // 恢复主任务(不更新时间)
            task.RobotId = robot.RobotId;
            task.Status = TaskStatus.Assigned;
            task.Pause = false;
            task.ErrorInfo = null;

            // 恢复子任务为等待中(不更新时间)
            foreach (var subTask in task.SubTasks)
            {
                subTask.RobotId = robot.RobotId;
                subTask.Status = TaskStatus.Pending;
            }

            await _robotTaskRepository.UpdateAsync(task, context.CancellationToken);
            await _robotTaskRepository.SaveChangesAsync(context.CancellationToken);

            await context.RespondAsync(ApiResponse.Successful("重新执行成功"));
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "重新执行任务失败, TaskId: {TaskId}", command.TaskId);
            await context.RespondAsync(ApiResponse.Failed(ex.Message));
        }
    }
}