Refactor WebApiException error model construction

Refactored GetErrorModel() to build ErrorModel directly, replacing ProblemDetails usage. Added GetRfcType() to map status codes to RFC URLs and used ReasonPhrases.GetReasonPhrase for error titles. Updated traceId handling and removed dependency on Microsoft.AspNetCore.Mvc in favor of Microsoft.AspNetCore.WebUtilities.

Author: Vadim Belov

Sources/EasyExtensions.AspNetCore/Exceptions/WebApiException.cs

@@ -3,7 +3,7 @@
 
 using EasyExtensions.Abstractions;
 using EasyExtensions.Models;
-using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.WebUtilities;
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
@@ -53,28 +53,33 @@ public class WebApiException(
         /// <returns> Error model. </returns>
         public ErrorModel GetErrorModel()
         {
-            ProblemDetails details = new ProblemDetails()
-            {
-                Status = (int)StatusCode,
-                Type = "https://tools.ietf.org/html/rfc7231#section-6.5.1",
-                Title = "Web API actions errors occurred.",
-            };
-            string? traceId = Activity.Current?.Id ?? "-";
-            if (!string.IsNullOrWhiteSpace(traceId))
-            {
-                details.Extensions["traceId"] = traceId;
-            }
+            int statusCode = (int)StatusCode;
             return new()
             {
-                Status = (int)StatusCode,
-                Type = "https://tools.ietf.org/html/rfc7231#section-6.5.1",
-                Title = "Web API actions errors occurred.",
-                TraceId = Activity.Current?.Id ?? "-",
+                Status = statusCode,
+                Type = GetRfcType(StatusCode),
+                Title = ReasonPhrases.GetReasonPhrase(statusCode),
+                TraceId = Activity.Current?.Id ?? string.Empty,
                 Errors = new Dictionary<string, string>
                 {
                     { ObjectName, Message }
                 }
             };
         }
+
+        private static string GetRfcType(HttpStatusCode statusCode)
+            => statusCode switch
+            {
+                HttpStatusCode.BadRequest => "https://tools.ietf.org/html/rfc7231#section-6.5.1",
+                HttpStatusCode.Unauthorized => "https://tools.ietf.org/html/rfc7235#section-3.1",
+                HttpStatusCode.Forbidden => "https://tools.ietf.org/html/rfc7231#section-6.5.3",
+                HttpStatusCode.NotFound => "https://tools.ietf.org/html/rfc7231#section-6.5.4",
+                HttpStatusCode.Conflict => "https://tools.ietf.org/html/rfc7231#section-6.5.8",
+                HttpStatusCode.UnprocessableEntity => "https://tools.ietf.org/html/rfc4918#section-11.2",
+                HttpStatusCode.TooManyRequests => "https://tools.ietf.org/html/rfc6585#section-4",
+                HttpStatusCode.InternalServerError => "https://tools.ietf.org/html/rfc7231#section-6.6.1",
+                HttpStatusCode.ServiceUnavailable => "https://tools.ietf.org/html/rfc7231#section-6.6.4",
+                _ => "https://tools.ietf.org/html/rfc7231"
+            };
     }
 }