sharee.bike-App/TINKLib/Model/Connector/Query/CachedQuery.cs
2023-05-11 17:39:28 +02:00

94 lines
3.1 KiB
C#

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Serilog;
using TINK.Model.Bikes;
using TINK.Model.Connector.Updater;
using TINK.Model.Services.CopriApi;
using TINK.Repository;
using TINK.Services.CopriApi;
using BikeInfo = TINK.Model.Bikes.BikeInfoNS.BC.BikeInfo;
namespace TINK.Model.Connector
{
/// <summary> Provides query functionality for use without log in. </summary>
public class CachedQuery : Base, IQuery
{
/// <summary> Cached copri server (connection to copri backed up by cache). </summary>
private readonly ICachedCopriServer server;
/// <summary>Constructs a copri query object.</summary>
/// <param name="copriServer">Server which implements communication.</param>
public CachedQuery(
ICopriServerBase copriServer) : base(copriServer)
{
server = copriServer as ICachedCopriServer;
if (server == null)
{
throw new ArgumentException($"Copri server is not of expected type. Type detected is {copriServer.GetType()}.");
}
}
/// <summary> Gets all stations including positions and bikes.</summary>
public async Task<Result<StationsAndBikesContainer>> GetBikesAndStationsAsync()
{
var resultStations = await server.GetStations();
if (resultStations.Source == typeof(CopriCallsMonkeyStore))
{
// Communication with copri in order to get stations failed.
return new Result<StationsAndBikesContainer>(
resultStations.Source,
new StationsAndBikesContainer(
resultStations.Response.GetStationsAllMutable(),
new BikeCollection() /* There are no bikes occupied because user is not logged in. */),
resultStations.GeneralData,
resultStations.Exception);
}
// Communication with copri succeeded.
server.AddToCache(resultStations);
return new Result<StationsAndBikesContainer>(
resultStations.Source,
new StationsAndBikesContainer(
resultStations.Response.GetStationsAllMutable(),
new BikeCollection()),
resultStations.GeneralData);
}
/// <summary> Gets bikes occupied. </summary>
/// <returns>Collection of bikes.</returns>
public async Task<Result<BikeCollection>> GetBikesOccupiedAsync()
{
Log.ForContext<CachedQuery>().Error("Unexpected call to get be bikes occupied detected. No user is logged in.");
return new Result<BikeCollection>(
typeof(CopriCallsMonkeyStore),
await Task.FromResult(new BikeCollection(new Dictionary<string, BikeInfo>())),
new GeneralData(),
new Exception("Abfrage der reservierten/ gebuchten Räder nicht möglich. Kein Benutzer angemeldet."));
}
/// <summary> Gets bikes available. </summary>
/// <returns>Collection of bikes.</returns>
public async Task<Result<BikeCollection>> GetBikesAsync()
{
var result = await server.GetBikesAvailable();
if (result.Source != typeof(CopriCallsMonkeyStore))
{
server.AddToCache(result);
}
return new Result<BikeCollection>(
result.Source,
result.Response.GetBikesAvailable(result.Source == typeof(CopriCallsMonkeyStore)
? Bikes.BikeInfoNS.BC.DataSource.Cache
: Bikes.BikeInfoNS.BC.DataSource.Copri),
result.GeneralData,
result.Exception);
}
}
}