33 lines
1.3 KiB
C#
33 lines
1.3 KiB
C#
using System.Threading;
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using System.Threading.Tasks;
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using ErsatzTV.Core;
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using ErsatzTV.Core.Interfaces.Repositories;
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using LanguageExt;
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using MediatR;
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namespace ErsatzTV.Application.ProgramSchedules.Commands
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{
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public class DeleteProgramScheduleHandler : IRequestHandler<DeleteProgramSchedule, Either<BaseError, Task>>
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{
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private readonly IProgramScheduleRepository _programScheduleRepository;
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public DeleteProgramScheduleHandler(IProgramScheduleRepository programScheduleRepository) =>
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_programScheduleRepository = programScheduleRepository;
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public async Task<Either<BaseError, Task>> Handle(
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DeleteProgramSchedule request,
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CancellationToken cancellationToken) =>
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(await ProgramScheduleMustExist(request))
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.Map(DoDeletion)
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.ToEither<Task>();
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private Task DoDeletion(int programScheduleId) => _programScheduleRepository.Delete(programScheduleId);
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private async Task<Validation<BaseError, int>> ProgramScheduleMustExist(
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DeleteProgramSchedule deleteProgramSchedule) =>
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(await _programScheduleRepository.Get(deleteProgramSchedule.ProgramScheduleId))
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.ToValidation<BaseError>($"ProgramSchedule {deleteProgramSchedule.ProgramScheduleId} does not exist.")
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.Map(c => c.Id);
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}
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}
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