64 lines
2.6 KiB
C#
64 lines
2.6 KiB
C#
using adas_core.Application.Repositories.Interfaces;
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using adas_core.Application.Services.Interfaces;
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using adas_core.Domain.Models;
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using adas_core.Domain.Models.AppSettings;
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using adas_core.Domain.Models.MongoModels;
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using Microsoft.Extensions.Options;
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namespace adas_core.Application.Services;
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/// <summary>
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/// Provides a proof-of-concept implementation of the IPoCMappingService interface,
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/// delivering the mapping functionality defined by that contract.
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/// </summary>
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public class PoCMappingService : IPoCMappingService
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{
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private readonly string _key;
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private readonly bool _mappingRequired;
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private readonly IPoCMappingRepository _pocMappingRepository;
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private readonly int? _refreshTimeout;
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private PoCMapping? _mapping;
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private DateTime _nextRefresh = DateTime.MinValue;
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public PoCMappingService(IPoCMappingRepository pocMappingRepository, IOptions<ApiSettings> apiSettings)
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{
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_pocMappingRepository = pocMappingRepository;
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_refreshTimeout = apiSettings.Value.PointOfCareMapping?.Refresh;
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_mappingRequired = apiSettings.Value.PointOfCareMapping?.Required ?? _mappingRequired;
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_key = apiSettings.Value.PointOfCareMapping?.Key ?? "PV1";
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}
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/// <summary>
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/// Maps a received location with bed and pointOfCare to the equivalence in the PocMapping table if it finds the value,
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/// otherwise it returns null
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/// </summary>
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/// <param name="original">location</param>
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/// <returns>mapped location</returns>
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public async Task<PatientLocation?> Map(PatientLocation original)
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{
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var pocMapping = await GetMapping();
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var poc = pocMapping?.PointOfCares.FindAll(p => p.OriginalPoC == original.UnitName);
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var pocWithBed = poc?.FirstOrDefault(p => p.Beds.Any(bed => bed[0] == original.Bed));
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var newBed = pocWithBed?.Beds.Where(bed => bed[0] == original.Bed).Select(bed => bed[1]).FirstOrDefault();
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if (string.IsNullOrEmpty(newBed)) return _mappingRequired ? null : original;
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return new PatientLocation(pocWithBed!.NewPoC, newBed);
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}
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/// <summary>
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/// Return mapping from cache of database based on refreshTime
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/// </summary>
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/// <returns></returns>
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private async Task<PoCMapping?> GetMapping()
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{
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if (_mapping == null || DateTime.Now > _nextRefresh)
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{
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_mapping = await _pocMappingRepository.FindByKey(_key);
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_nextRefresh = _refreshTimeout.HasValue
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? DateTime.Now.AddSeconds(_refreshTimeout.Value)
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: DateTime.MaxValue;
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}
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return _mapping;
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}
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} |