initial commit

Application/Exceptions/BaseException.cs

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+using Domain.Enums;
+
+namespace Application.Exceptions;
+
+public class BaseException(EErrorCategory category, string message) : Exception(message)
+{
+    public readonly EErrorCategory Category = category;
+}

Application/Exceptions/DuplicateEmailException.cs

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+using Domain.Enums;
+
+namespace Application.Exceptions;
+
+public class DuplicateEmailException(string email) : BaseException(EErrorCategory.UserValidationError, $"Email {email} already registered")
+{
+    
+}

Application/Exceptions/DuplicateUsernameException.cs

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+using Domain.Enums;
+
+namespace Application.Exceptions;
+
+public class DuplicateUsernameException(string? username) : BaseException(EErrorCategory.UserValidationError, $"Username {username} is taken")
+{
+    
+}

Application/Exceptions/InsufficientParametersException.cs

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+using Domain.Enums;
+
+namespace Application.Exceptions;
+
+public class InsufficientParametersException(List<string> missingParameters) : BaseException(EErrorCategory.RequestError, "Insufficient Parameters: " + string.Join(", ", missingParameters))
+{
+    
+}

Application/Exceptions/UserNotFoundException.cs

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+using Domain.Enums;
+
+namespace Application.Exceptions;
+
+public class UserNotFoundException(int id) : BaseException(EErrorCategory.DataNotFoundError,$"User with ID {id} not found.")
+{
+    
+}