Fixed errors and wrong model

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

@@ -53,6 +53,10 @@ public class VisaApplicationRequestsHandler(
     {
         var applicantId = await applicants.GetApplicantIdByUserId(userIdProvider.GetUserId(), cancellationToken);
         var application = await applications.GetByApplicantAndApplicationIdAsync(applicantId, applicationId, cancellationToken);
+        if (application.Status is ApplicationStatus.Approved or ApplicationStatus.Rejected)
+        {
+            throw new ApplicationAlreadyProcessedException();
+        }
 
         application.Status = ApplicationStatus.Closed;
         await applications.UpdateAsync(application, cancellationToken);

SchengenVisaApi/ApplicationLayer/Services/VisaApplications/Requests/Validation/VisaApplicationCreateRequestValidator.cs

@@ -17,6 +17,12 @@ public class VisaApplicationCreateRequestValidator : AbstractValidator<VisaAppli
         IApplicantsRepository applicants,
         IUserIdProvider userIdProvider)
     {
+        RuleFor(r => r.PermissionToDestCountry)
+            .NotEmpty()
+            .WithMessage("For transit you must provide permission to destination country")
+            .SetValidator(permissionToDestCountryModelValidator)
+            .When(r => r.VisaCategory is VisaCategory.Transit);
+
         RuleFor(r => r.ReentryPermit)
             .NotEmpty()
             .WithMessage("Non-residents must provide re-entry permission")
@@ -43,11 +49,6 @@ public class VisaApplicationCreateRequestValidator : AbstractValidator<VisaAppli
         RuleForEach(r => r.PastVisas)
             .SetValidator(pastVisaModelValidator);
 
-        When(r => r.VisaCategory == VisaCategory.Transit,
-            () =>
-                RuleFor(r => r.PermissionToDestCountry)
-                    .SetValidator(permissionToDestCountryModelValidator));
-
         RuleForEach(r => r.PastVisits)
             .SetValidator(pastVisitModelValidator);
     }

SchengenVisaApi/ApplicationLayer/Services/VisaApplications/Requests/VisaApplicationCreateRequest.cs

@@ -32,8 +32,6 @@ public class VisaApplicationCreateRequest
     [Required]
     public PastVisaModel[] PastVisas { get; set; } = null!;
 
-    //todo remove attribute
-    [Required]
     public PermissionToDestCountryModel? PermissionToDestCountry { get; set; }
 
     [Required]

SchengenVisaApi/SchengenVisaApi/Controllers/UsersController.cs

@@ -26,7 +26,6 @@ public class UsersController(
     /// <summary> Adds applicant with user account </summary>
     [HttpPost("register")]
     [ProducesResponseType(StatusCodes.Status200OK)]
-    [ProducesResponseType(StatusCodes.Status409Conflict)]
     [ProducesResponseType(StatusCodes.Status400BadRequest)]
     public async Task<IActionResult> Register(RegisterApplicantRequest request, CancellationToken cancellationToken)
     {
@@ -40,7 +39,6 @@ public class UsersController(
     ///<remarks> Accessible only for admins </remarks>
     [HttpPost("authorities")]
     [ProducesResponseType(StatusCodes.Status200OK)]
-    [ProducesResponseType(StatusCodes.Status409Conflict)]
     [ProducesResponseType(StatusCodes.Status403Forbidden)]
     [ProducesResponseType(StatusCodes.Status401Unauthorized)]
     [ProducesResponseType(StatusCodes.Status400BadRequest)]

SchengenVisaApi/SchengenVisaApi/Controllers/VisaApplicationController.cs

@@ -66,6 +66,7 @@ public class VisaApplicationController(
     [ProducesResponseType(StatusCodes.Status403Forbidden)]
     [ProducesResponseType(StatusCodes.Status401Unauthorized)]
     [ProducesResponseType(StatusCodes.Status404NotFound)]
+    [ProducesResponseType(StatusCodes.Status400BadRequest)]
     [Authorize(policy: PolicyConstants.ApplicantPolicy)]
     public async Task<IActionResult> CloseApplication(Guid applicationId, CancellationToken cancellationToken)
     {

SchengenVisaApi/VisaApiClient/Client.cs

@@ -131,16 +131,6 @@ namespace VisaApiClient
                             return;
                         }
                         else
-                        if (status_ == 409)
-                        {
-                            var objectResponse_ = await ReadObjectResponseAsync<ProblemDetails>(response_, headers_, cancellationToken).ConfigureAwait(false);
-                            if (objectResponse_.Object == null)
-                            {
-                                throw new ApiException("Response was null which was not expected.", status_, objectResponse_.Text, headers_, null);
-                            }
-                            throw new ApiException<ProblemDetails>("Conflict", status_, objectResponse_.Text, headers_, objectResponse_.Object, null);
-                        }
-                        else
                         if (status_ == 400)
                         {
                             var objectResponse_ = await ReadObjectResponseAsync<ProblemDetails>(response_, headers_, cancellationToken).ConfigureAwait(false);
@@ -239,16 +229,6 @@ namespace VisaApiClient
                             return;
                         }
                         else
-                        if (status_ == 409)
-                        {
-                            var objectResponse_ = await ReadObjectResponseAsync<ProblemDetails>(response_, headers_, cancellationToken).ConfigureAwait(false);
-                            if (objectResponse_.Object == null)
-                            {
-                                throw new ApiException("Response was null which was not expected.", status_, objectResponse_.Text, headers_, null);
-                            }
-                            throw new ApiException<ProblemDetails>("Conflict", status_, objectResponse_.Text, headers_, objectResponse_.Object, null);
-                        }
-                        else
                         if (status_ == 403)
                         {
                             var objectResponse_ = await ReadObjectResponseAsync<ProblemDetails>(response_, headers_, cancellationToken).ConfigureAwait(false);
@@ -1220,6 +1200,16 @@ namespace VisaApiClient
                             throw new ApiException<ProblemDetails>("Not Found", status_, objectResponse_.Text, headers_, objectResponse_.Object, null);
                         }
                         else
+                        if (status_ == 400)
+                        {
+                            var objectResponse_ = await ReadObjectResponseAsync<ProblemDetails>(response_, headers_, cancellationToken).ConfigureAwait(false);
+                            if (objectResponse_.Object == null)
+                            {
+                                throw new ApiException("Response was null which was not expected.", status_, objectResponse_.Text, headers_, null);
+                            }
+                            throw new ApiException<ProblemDetails>("Bad Request", status_, objectResponse_.Text, headers_, objectResponse_.Object, null);
+                        }
+                        else
                         {
                             var responseData_ = response_.Content == null ? null : await response_.Content.ReadAsStringAsync().ConfigureAwait(false);
                             throw new ApiException("The HTTP status code of the response was not expected (" + status_ + ").", status_, responseData_, headers_, null);
@@ -1938,9 +1928,8 @@ namespace VisaApiClient
         [System.ComponentModel.DataAnnotations.Required]
         public System.Collections.Generic.ICollection<PastVisaModel> PastVisas { get; set; } = new System.Collections.ObjectModel.Collection<PastVisaModel>();
 
-        [Newtonsoft.Json.JsonProperty("permissionToDestCountry", Required = Newtonsoft.Json.Required.Always)]
+        [Newtonsoft.Json.JsonProperty("permissionToDestCountry", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
-        [System.ComponentModel.DataAnnotations.Required]
+        public PermissionToDestCountryModel PermissionToDestCountry { get; set; } = default!;
-        public PermissionToDestCountryModel PermissionToDestCountry { get; set; } = new PermissionToDestCountryModel();
 
         [Newtonsoft.Json.JsonProperty("pastVisits", Required = Newtonsoft.Json.Required.Always)]
         [System.ComponentModel.DataAnnotations.Required]