Changed exceptions, added action for closing applications by applicant

SchengenVisaApi/ApplicationLayer/ApplicationLayer.csproj

@@ -14,4 +14,8 @@
       <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="9.0.0-preview.7.24405.7" />
     </ItemGroup>
 
+    <ItemGroup>
+      <Folder Include="Services\VisaApplications\Handlers\Exceptions\" />
+    </ItemGroup>
+
 </Project>

SchengenVisaApi/ApplicationLayer/Services/GeneralExceptions/EntityNotFoundByIdException.cs

@@ -5,5 +5,5 @@ namespace ApplicationLayer.Services.GeneralExceptions;
 /// Exception to throw when entity not found
 /// <param name="id">Identifier of entity</param>
 /// <typeparam name="T">Type of entity</typeparam>
-public class EntityNotFoundByIdException<T>(Guid id) : EntityNotFoundException<T>($"{typeof(T).Name} with id {id} not found.")
+public class EntityNotFoundByIdException<T>(Guid id) : EntityNotFoundException($"{typeof(T).Name} with id {id} not found.")
     where T : class, IEntity;

SchengenVisaApi/ApplicationLayer/Services/GeneralExceptions/EntityNotFoundException.cs

@@ -1,9 +1,6 @@
 using ApplicationLayer.GeneralExceptions;
-using Domains;
 
 namespace ApplicationLayer.Services.GeneralExceptions;
 
 /// Exception to throw when entity not found
-/// <typeparam name="T">Not found entity type</typeparam>
-public class EntityNotFoundException<T>(string message) : ApiException(message)
-    where T : class, IEntity;
+public class EntityNotFoundException(string message) : ApiException(message);

SchengenVisaApi/ApplicationLayer/Services/VisaApplications/Handlers/IVisaApplicationRequestsHandler.cs

@@ -14,4 +14,7 @@ public interface IVisaApplicationRequestsHandler
 
     /// Creates application for applicant with specific user identifier
     Task HandleCreateRequest(Guid userId, VisaApplicationCreateRequest request, CancellationToken cancellationToken);
+
+    /// Sets application status to closed
+    Task HandleCloseRequest(Guid userId, Guid applicationId, CancellationToken cancellationToken);
 }

SchengenVisaApi/ApplicationLayer/Services/VisaApplications/Handlers/VisaApplicationRequestsHandler.cs

@@ -114,4 +114,15 @@ public class VisaApplicationRequestsHandler(
 
         await unitOfWork.SaveAsync(cancellationToken);
     }
+
+    async Task IVisaApplicationRequestsHandler.HandleCloseRequest(Guid userId, Guid applicationId, CancellationToken cancellationToken)
+    {
+        var applicantId = await applicants.GetApplicantIdByUserId(userId, cancellationToken);
+        var application = await applications.GetByApplicantAndApplicationIdAsync(applicantId, applicationId, cancellationToken);
+
+        application.Status = ApplicationStatus.Closed;
+        await applications.UpdateAsync(application, cancellationToken);
+
+        await unitOfWork.SaveAsync(cancellationToken);
+    }
 }

SchengenVisaApi/ApplicationLayer/Services/VisaApplications/NeededServices/IVisaApplicationsRepository.cs

@@ -7,4 +7,7 @@ public interface IVisaApplicationsRepository : IGenericRepository<VisaApplicatio
 {
     /// Get applications of one applicant
     Task<List<VisaApplication>> GetOfApplicantAsync(Guid applicantId, CancellationToken cancellationToken);
+
+    /// Get specific application of specific user
+    Task<VisaApplication> GetByApplicantAndApplicationIdAsync(Guid applicantId, Guid applicationId, CancellationToken cancellationToken);
 }

SchengenVisaApi/Infrastructure/Database/Applicants/Repositories/ApplicantsRepository.cs

@@ -21,12 +21,12 @@ public sealed class ApplicantsRepository(IGenericReader reader, IGenericWriter w
     async Task<Applicant> IApplicantsRepository.FindByUserIdAsync(Guid userId, CancellationToken cancellationToken)
     {
         var result = await LoadDomain().SingleOrDefaultAsync(a => a.UserId == userId, cancellationToken);
-        return result ?? throw new ApplicantNotFoundByUserIdException(userId);
+        return result ?? throw new ApplicantNotFoundByUserIdException();
     }
 
     async Task<Guid> IApplicantsRepository.GetApplicantIdByUserId(Guid userId, CancellationToken cancellationToken)
     {
         var result = await base.LoadDomain().SingleOrDefaultAsync(a => a.UserId == userId, cancellationToken);
-        return result?.Id ?? throw new ApplicantNotFoundByUserIdException(userId);
+        return result?.Id ?? throw new ApplicantNotFoundByUserIdException();
     }
 }

SchengenVisaApi/Infrastructure/Database/Applicants/Repositories/Exceptions/ApplicantNotFoundByUserIdException.cs

@@ -3,8 +3,5 @@ using Domains.ApplicantDomain;
 
 namespace Infrastructure.Database.Applicants.Repositories.Exceptions
 {
-    public class ApplicantNotFoundByUserIdException(Guid id) : EntityNotFoundException<Applicant>("Applicant not found.")
-    {
-        public Guid UserId { get; private set; } = id;
-    }
+    public class ApplicantNotFoundByUserIdException() : EntityNotFoundException("Applicant not found.");
 }

SchengenVisaApi/Infrastructure/Database/VisaApplications/Repositories/Exceptions/ApplicationNotFoundByApplicantAndApplicationIdException.cs

@@ -0,0 +1,7 @@
+using ApplicationLayer.Services.GeneralExceptions;
+
+namespace Infrastructure.Database.VisaApplications.Repositories.Exceptions
+{
+    public class ApplicationNotFoundByApplicantAndApplicationIdException(Guid applicationId)
+        : EntityNotFoundException($"Application with id {applicationId} not found for authenticated user");
+}

SchengenVisaApi/Infrastructure/Database/VisaApplications/Repositories/VisaApplicationsRepository.cs

@@ -1,6 +1,7 @@
 using ApplicationLayer.Services.VisaApplications.NeededServices;
 using Domains.VisaApplicationDomain;
 using Infrastructure.Database.Generic;
+using Infrastructure.Database.VisaApplications.Repositories.Exceptions;
 using Microsoft.EntityFrameworkCore;
 
 namespace Infrastructure.Database.VisaApplications.Repositories;
@@ -16,4 +17,14 @@ public sealed class VisaApplicationsRepository(IGenericReader reader, IGenericWr
 
     async Task<List<VisaApplication>> IVisaApplicationsRepository.GetOfApplicantAsync(Guid applicantId, CancellationToken cancellationToken)
         => await LoadDomain().Where(va => va.ApplicantId == applicantId).ToListAsync(cancellationToken);
+
+    async Task<VisaApplication> IVisaApplicationsRepository.GetByApplicantAndApplicationIdAsync(
+        Guid applicantId,
+        Guid applicationId,
+        CancellationToken cancellationToken)
+    {
+        var result = await LoadDomain()
+            .SingleOrDefaultAsync(va => va.Id == applicationId && va.ApplicantId == applicantId, cancellationToken);
+        return result ?? throw new ApplicationNotFoundByApplicantAndApplicationIdException(applicationId);
+    }
 }

SchengenVisaApi/SchengenVisaApi/Controllers/VisaApplicationController.cs

@@ -57,4 +57,20 @@ public class VisaApplicationController(IVisaApplicationRequestsHandler visaAppli
         await visaApplicationRequestsHandler.HandleCreateRequest(userId, request, cancellationToken);
         return Ok();
     }
+
+    /// <summary> Sets application status to closed</summary>
+    /// <remarks> Accessible only for applicant</remarks>
+    [HttpPatch]
+    [ProducesResponseType(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status403Forbidden)]
+    [ProducesResponseType(StatusCodes.Status401Unauthorized)]
+    [ProducesResponseType(StatusCodes.Status404NotFound)]
+    [Authorize(policy: PolicyConstants.ApplicantPolicy)]
+    [Route("{applicationId:guid}")]
+    public async Task<IActionResult> CloseApplication(Guid applicationId, CancellationToken cancellationToken)
+    {
+        var userId = GetUserId();
+        await visaApplicationRequestsHandler.HandleCloseRequest(userId, applicationId, cancellationToken);
+        return Ok();
+    }
 }

SchengenVisaApi/SchengenVisaApi/ExceptionFilters/GlobalExceptionsFilter.cs

@@ -21,7 +21,7 @@ namespace SchengenVisaApi.ExceptionFilters
                 problemDetails.Detail = exception.Message;
                 switch (exception)
                 {
-                    case EntityNotFoundException<IEntity>:
+                    case EntityNotFoundException:
                         problemDetails.Status = StatusCodes.Status404NotFound;
                         problemDetails.Title = "Requested entity not found";
                         problemDetails.Type = "https://datatracker.ietf.org/doc/html/rfc7231#section-6.5.4";