Refactored endpoints to be more functional and more expressive

PostFundManagement.Api/Endpoints/Evidence/UploadEvidenceFilesEndpoint.cs

@@ -1,8 +1,10 @@
 using PostFundManagement.Application.Extensions;
 using PostFundManagement.Application.Services.Evidence;
 using PostFundManagement.Domain.Abstractions;
+using PostFundManagement.Domain.Errors;
 using PostFundManagement.Domain.Extensions;
 using PostFundManagement.Domain.Security;
+using Problems = Microsoft.AspNetCore.Mvc.ProblemDetails;
 
 namespace PostFundManagement.Api.Endpoints.Evidence;
 
@@ -25,11 +27,12 @@ public class UploadEvidenceFilesEndpoint : IEndpoint
             if (file == null || file.Length == 0)
                 return Results.BadRequest("No file uploaded or file is empty.");
 
-            var result = await service.UploadEvidenceFileAsync(userId, form, file, cancellationToken);
-
-            return result.IsSuccess
-                ? Results.Ok()
-                : Results.BadRequest(result.Errors.ToProblems());
+            return await service.UploadEvidenceFileAsync(userId, form, file, cancellationToken) switch
+            {
+                { IsSuccess: true } => Results.Ok(),
+                var r when r.HasError<CreateError>() => Results.BadRequest(r.Errors.ToProblems()),
+                var r => Results.InternalServerError(r.Errors.ToProblems())
+            };
         })
         .RequireAuthorization()
         .DisableAntiforgery()
@@ -37,7 +40,8 @@ public class UploadEvidenceFilesEndpoint : IEndpoint
         .WithName(typeof(UploadEvidenceFilesEndpoint).ToEndpointName())
         .MapToApiVersion(new ApiVersion(1))
         .Produces(StatusCodes.Status200OK)
-        .Produces<Microsoft.AspNetCore.Mvc.ProblemDetails>(StatusCodes.Status400BadRequest)
+        .Produces<Problems>(StatusCodes.Status400BadRequest)
+        .Produces<Problems>(StatusCodes.Status500InternalServerError)
         .Produces(StatusCodes.Status401Unauthorized)
         .WithTags(EndpointTags.Evidence);
     }