refactor: replace SystemClock with TimeProvider

The commit involves replacing all references to SystemClock with TimeProvider in various files. SystemClock was deleted and TimeProvider was used for achieving similar functionality. This change was made to use a more flexible time provider which will be useful for future adjustments.

Author: kamilbaczek

Chapter-1-initial-architecture/Src/Fitnet.IntegrationTests/Common/TestEngine/Configuration/ConfigurationExtensions.cs

@@ -3,10 +3,9 @@ namespace EvolutionaryArchitecture.Fitnet.IntegrationTests.Common.TestEngine.Con
 using System.Reflection;
 using EvolutionaryArchitecture.Fitnet.Common.Events.EventBus;
 using EvolutionaryArchitecture.Fitnet.Common.Events.EventBus.InMemory;
-using EvolutionaryArchitecture.Fitnet.Common.SystemClock;
 using Microsoft.AspNetCore.Mvc.Testing;
 using Microsoft.AspNetCore.TestHost;
-using SystemClock;
+using Microsoft.Extensions.Time.Testing;
 
 internal static class ConfigurationExtensions
 {
@@ -37,7 +36,7 @@ private static WebApplicationFactory<T> UseSettings<T>(this WebApplicationFactor
     internal static WebApplicationFactory<T> SetFakeSystemClock<T>(this WebApplicationFactory<T> webApplicationFactory, DateTimeOffset fakeDateTimeOffset)
         where T : class =>
         webApplicationFactory.WithWebHostBuilder(webHostBuilder => webHostBuilder.ConfigureTestServices(services =>
-            services.AddSingleton<ISystemClock>(new FakeSystemClock(fakeDateTimeOffset))));
+            services.AddSingleton<TimeProvider>(new FakeTimeProvider(fakeDateTimeOffset))));
 
     internal static WebApplicationFactory<T> WithFakeEventBus<T>(this WebApplicationFactory<T> webApplicationFactory, IEventBus eventBusMock)
         where T : class =>
@@ -48,5 +47,4 @@ internal static WebApplicationFactory<T> WithFakeConsumers<T>(this WebApplicatio
         where T : class =>
         webApplicationFactory.WithWebHostBuilder(webHostBuilder => webHostBuilder.ConfigureTestServices(services =>
             services.AddInMemoryEventBus(Assembly.GetExecutingAssembly())));
-
 }

Chapter-1-initial-architecture/Src/Fitnet.IntegrationTests/Common/TestEngine/SystemClock/FakeSystemClock.cs

@@ -8,6 +8,7 @@
     <ItemGroup>
         <PackageReference Include="Bogus" Version="34.0.2" />
         <PackageReference Include="FluentAssertions" Version="6.12.0" />
+        <PackageReference Include="Microsoft.Extensions.TimeProvider.Testing" Version="8.0.0" />
         <PackageReference Include="NSubstitute" Version="5.1.0" />
         <PackageReference Include="Verify.Xunit" Version="22.5.0" />
         <PackageReference Include="xunit.runner.visualstudio" Version="2.5.3">

Chapter-1-initial-architecture/Src/Fitnet.IntegrationTests/Fitnet.IntegrationTests.csproj

@@ -3,14 +3,14 @@ namespace EvolutionaryArchitecture.Fitnet.Contracts.SignContract;
 using Data.Database;
 using Events;
 using EvolutionaryArchitecture.Fitnet.Common.Events.EventBus;
-using Common.SystemClock;
 using Common.Validation.Requests;
 
 internal static class SignContractEndpoint
 {
     internal static void MapSignContract(this IEndpointRouteBuilder app) => app.MapPatch(ContractsApiPaths.Sign,
             async (Guid id, SignContractRequest request,
-                ContractsPersistence persistence, IEventBus bus, ISystemClock systemClock,
+                ContractsPersistence persistence, IEventBus bus,
+                TimeProvider timeProvider,
                 CancellationToken cancellationToken) =>
             {
                 var contract =
@@ -21,7 +21,8 @@ internal static void MapSignContract(this IEndpointRouteBuilder app) => app.MapP
                     return Results.NotFound();
                 }
 
-                contract.Sign(request.SignedAt, systemClock.Now);
+                var dateNow = timeProvider.GetUtcNow();
+                contract.Sign(request.SignedAt, dateNow);
                 await persistence.SaveChangesAsync(cancellationToken);
 
                 var @event = ContractSignedEvent.Create(contract.Id, contract.CustomerId, contract.SignedAt!.Value,

Chapter-1-initial-architecture/Src/Fitnet/Common/SystemClock/ISystemClock.cs

@@ -5,16 +5,16 @@ namespace EvolutionaryArchitecture.Fitnet.Offers.Prepare;
 using Passes.MarkPassAsExpired.Events;
 using Common.Events;
 using Common.Events.EventBus;
-using Common.SystemClock;
 
 internal sealed class PassExpiredEventHandler(
     IEventBus eventBus,
     OffersPersistence persistence,
-    ISystemClock systemClock) : IIntegrationEventHandler<PassExpiredEvent>
+    TimeProvider timeProvider) : IIntegrationEventHandler<PassExpiredEvent>
 {
     public async Task Handle(PassExpiredEvent @event, CancellationToken cancellationToken)
     {
-        var offer = Offer.PrepareStandardPassExtension(@event.CustomerId, systemClock.Now);
+        var nowDate = timeProvider.GetUtcNow();
+        var offer = Offer.PrepareStandardPassExtension(@event.CustomerId, nowDate);
         persistence.Offers.Add(offer);
         await persistence.SaveChangesAsync(cancellationToken);
 

Chapter-1-initial-architecture/Src/Fitnet/Common/SystemClock/SystemClock.cs

@@ -3,7 +3,6 @@ namespace EvolutionaryArchitecture.Fitnet.Passes.MarkPassAsExpired;
 using Data.Database;
 using Events;
 using EvolutionaryArchitecture.Fitnet.Common.Events.EventBus;
-using Common.SystemClock;
 
 internal static class MarkPassAsExpiredEndpoint
 {
@@ -12,7 +11,7 @@ internal static void MapMarkPassAsExpired(this IEndpointRouteBuilder app) => app
             async (
                 Guid id,
                 PassesPersistence persistence,
-                ISystemClock systemClock,
+                TimeProvider timeProvider,
                 IEventBus eventBus,
                 CancellationToken cancellationToken) =>
             {
@@ -22,7 +21,8 @@ internal static void MapMarkPassAsExpired(this IEndpointRouteBuilder app) => app
                     return Results.NotFound();
                 }
 
-                pass.MarkAsExpired(systemClock.Now);
+                var nowDate = timeProvider.GetUtcNow();
+                pass.MarkAsExpired(nowDate);
                 await persistence.SaveChangesAsync(cancellationToken);
                 await eventBus.PublishAsync(PassExpiredEvent.Create(pass.Id, pass.CustomerId), cancellationToken);
 

Chapter-1-initial-architecture/Src/Fitnet/Common/SystemClock/SystemClockModule.cs

@@ -1,6 +1,5 @@
 using EvolutionaryArchitecture.Fitnet.Common.ErrorHandling;
 using EvolutionaryArchitecture.Fitnet.Common.Events.EventBus;
-using EvolutionaryArchitecture.Fitnet.Common.SystemClock;
 using EvolutionaryArchitecture.Fitnet.Common.Validation.Requests;
 using EvolutionaryArchitecture.Fitnet.Contracts;
 using EvolutionaryArchitecture.Fitnet.Offers;
@@ -12,9 +11,9 @@
 builder.Services.AddControllers();
 builder.Services.AddEndpointsApiExplorer();
 builder.Services.AddSwaggerGen();
-builder.Services.AddSystemClock();
 builder.Services.AddEventBus();
 builder.Services.AddRequestsValidations();
+builder.Services.AddSingleton(TimeProvider.System);
 
 builder.Services.AddPasses(builder.Configuration);
 builder.Services.AddContracts(builder.Configuration);
@@ -52,7 +51,5 @@
 namespace EvolutionaryArchitecture.Fitnet
 {
     [UsedImplicitly]
-    public sealed class Program
-    {
-    }
+    public sealed class Program;
 }