structure app by rest api standards

add getusers
tidy up BusinessException

Azaion.Common/BusinessException.cs

@@ -1,20 +1,49 @@
-namespace Azaion.Common;
+using System.ComponentModel;
+using Azaion.Common.Extensions;
 
-public class BusinessException(ExceptionEnum exEnum, string message) : Exception(message)
+namespace Azaion.Common;
+
+public class BusinessException(ExceptionEnum exEnum) : Exception(GetMessage(exEnum))
 {
+    private static readonly Dictionary<ExceptionEnum, string> ExceptionDescriptions;
+
+    static BusinessException()
+    {
+        ExceptionDescriptions = EnumExtensions.GetDescriptions<ExceptionEnum>();
+    }
+
     private ExceptionEnum ExceptionEnum { get; set; } = exEnum;
+
+    public static string GetMessage(ExceptionEnum exEnum) => ExceptionDescriptions.GetValueOrDefault(exEnum) ?? exEnum.ToString();
 }
 
 public enum ExceptionEnum
 {
-    NoUserFound = 10,
-    NoUser = 15,
-    UserExists = 20,
-    PasswordIncorrect = 30,
-    UserLengthIncorrect = 33,
-    WrongEmail = 35,
-    PasswordLengthIncorrect = 37,
+    [Description("No such email found.")]
+    NoEmailFound = 10,
+
+    [Description("Email already exists.")]
+    EmailExists = 20,
+
+    [Description("Passwords do not match.")]
+    WrongPassword = 30,
+
+    [Description("Password should be at least 8 characters.")]
+    PasswordLengthIncorrect = 32,
+
+    EmailLengthIncorrect = 35,
+
+    WrongEmail = 37,
+
+    [Description("Hardware mismatch! You are not authorized to access this resource from this hardware.")]
     HardwareIdMismatch = 40,
+
+    [Description("Hardware Id should be at least 8 characters.")]
+    HardwareIdLength = 45,
+
+    [Description("Wrong resource type.")]
     WrongResourceType = 50,
-    NoFile = 60
+
+    [Description("No file provided.")]
+    NoFileProvided = 60,
 }