63 lines
2.5 KiB
C#
63 lines
2.5 KiB
C#
using MediatR;
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using Microsoft.Extensions.Logging;
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using TakeoutSaaS.Application.App.Stores;
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using TakeoutSaaS.Application.App.Stores.Commands;
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using TakeoutSaaS.Application.App.Stores.Dto;
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using TakeoutSaaS.Application.App.Stores.Services;
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using TakeoutSaaS.Domain.Stores.Entities;
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using TakeoutSaaS.Domain.Stores.Repositories;
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using TakeoutSaaS.Shared.Abstractions.Constants;
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using TakeoutSaaS.Shared.Abstractions.Exceptions;
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namespace TakeoutSaaS.Application.App.Stores.Handlers;
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/// <summary>
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/// 更新配送区域处理器。
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/// </summary>
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public sealed class UpdateStoreDeliveryZoneCommandHandler(
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IStoreRepository storeRepository,
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IGeoJsonValidationService geoJsonValidationService,
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ILogger<UpdateStoreDeliveryZoneCommandHandler> logger)
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: IRequestHandler<UpdateStoreDeliveryZoneCommand, StoreDeliveryZoneDto?>
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{
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/// <inheritdoc />
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public async Task<StoreDeliveryZoneDto?> Handle(UpdateStoreDeliveryZoneCommand request, CancellationToken cancellationToken)
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{
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// 1. 读取区域
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var existing = await storeRepository.FindDeliveryZoneByIdAsync(request.DeliveryZoneId, null, cancellationToken);
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if (existing is null)
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{
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return null;
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}
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// 2. 校验门店归属
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if (existing.StoreId != request.StoreId)
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{
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throw new BusinessException(ErrorCodes.ValidationFailed, "配送区域不属于该门店");
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}
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// 3. (空行后) 校验 GeoJSON
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var validation = geoJsonValidationService.ValidatePolygon(request.PolygonGeoJson);
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if (!validation.IsValid)
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{
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throw new BusinessException(ErrorCodes.ValidationFailed, validation.ErrorMessage ?? "配送范围格式错误");
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}
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// 4. (空行后) 更新字段
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existing.ZoneName = request.ZoneName.Trim();
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existing.PolygonGeoJson = (validation.NormalizedGeoJson ?? request.PolygonGeoJson).Trim();
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existing.MinimumOrderAmount = request.MinimumOrderAmount;
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existing.DeliveryFee = request.DeliveryFee;
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existing.EstimatedMinutes = request.EstimatedMinutes;
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existing.SortOrder = request.SortOrder;
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// 5. (空行后) 持久化
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await storeRepository.UpdateDeliveryZoneAsync(existing, cancellationToken);
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await storeRepository.SaveChangesAsync(cancellationToken);
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logger.LogInformation("更新配送区域 {DeliveryZoneId} 对应门店 {StoreId}", existing.Id, existing.StoreId);
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// 6. (空行后) 返回 DTO
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return StoreMapping.ToDto(existing);
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}
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}
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