GetMapsQueryHandler.cs 2.19 KB
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using AutoMapper;
using MassTransit;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using Rcs.Application.Common;
using Rcs.Application.Dtos;
using Rcs.Application.DTOs;
using Rcs.Application.MessageBus.Commands;
using Rcs.Domain.Entities;
using Rcs.Domain.Repositories;

namespace Rcs.Infrastructure.MessageBus.Handlers.Commands;

/// <summary>
/// 查询机器人列表命令处理器
/// </summary>
public class GetMapsQueryHandler : IConsumer<GetMapsQuery>
{
    private readonly ILogger<GetMapsQueryHandler> _logger;
    private readonly IMapRepository _mapRepository;
    private readonly IMapper _mapper;

    public GetMapsQueryHandler(
        ILogger<GetMapsQueryHandler> logger,
        IMapRepository mapRepository,
        IMapper mapper)
    {
        _logger = logger;
        _mapRepository = mapRepository;
        _mapper = mapper;
    }

    public async Task Consume(ConsumeContext<GetMapsQuery> context)
    {
        var query = context.Message;

        var queryable = _mapRepository.GetQueryable();

        if (!string.IsNullOrWhiteSpace(query.FilterModel))
        {
            queryable = FilterHelper.ApplyFilters(queryable, query.FilterModel);
        }

        if (!string.IsNullOrWhiteSpace(query.MapCode))
        {
            queryable = queryable.Where(m => m.MapCode.Contains(query.MapCode));
        }

        if (!string.IsNullOrWhiteSpace(query.MapName))
        {
            queryable = queryable.Where(m => m.MapName.Contains(query.MapName));
        }

        if (query.Active.HasValue)
        {
            queryable = queryable.Where(m => m.Active == query.Active.Value);
        }

        var totalCount = await queryable.CountAsync(context.CancellationToken);

        var maps = await queryable
            .OrderBy(m => m.MapCode)
            .Skip((query.PageNumber - 1) * query.PageSize)
            .Take(query.PageSize)
            .ToListAsync(context.CancellationToken);

        var mapDtos = _mapper.Map<List<MapListItemDto>>(maps);
        await context.RespondAsync(PagedResponse<MapListItemDto>.Successful(mapDtos, query.PageNumber, query.PageSize, totalCount));
    }
}