namespace DocuMed.Repository.Handlers.Patients;

public class UpdatePatientSectionCommandHandler(IRepositoryWrapper repositoryWrapper) : IRequestHandler<UpdatePatientSectionCommand,Guid>
{
    public async Task<Guid> Handle(UpdatePatientSectionCommand request, CancellationToken cancellationToken)
    {
        var patient = await repositoryWrapper.SetRepository<Patient>()
            .TableNoTracking
            .Where(f => f.Id == request.Id)
            .Select(PatientMapper.ProjectToSDto)
            .FirstOrDefaultAsync(cancellationToken);

        if (patient == null)
            throw new BaseApiException(ApiResultStatusCode.NotFound, "Patient not found");

        var section = await repositoryWrapper.SetRepository<Section>()
            .TableNoTracking
            .FirstOrDefaultAsync(f => f.Id == request.SectionId, cancellationToken);

        if (section == null)
            throw new BaseApiException(ApiResultStatusCode.NotFound, "Section not found");

        if(patient.HospitalId != section.HospitalId)
            throw new BaseApiException(ApiResultStatusCode.BadRequest, "Patient and Section hospital is not same");

        var newEnt = Patient.Create(
            patient.UnitNumber,
            patient.Room,
            patient.Bed,
            patient.AdmissionAt,
            section.Id,
            patient.HospitalId,
            patient.Id);
        repositoryWrapper.SetRepository<Patient>().Update(newEnt);
        await repositoryWrapper.SaveChangesAsync(cancellationToken);
        return newEnt.Id;
    }
}