Add subcription feature 3

shared/exceptions/registration_exceptions.py

@@ -0,0 +1,55 @@
+"""
+Registration-related exceptions for the atomic registration architecture
+"""
+
+class RegistrationException(Exception):
+    """Base class for registration-related exceptions"""
+    pass
+
+class RegistrationPaymentFailed(RegistrationException):
+    """Exception raised when registration payment fails"""
+    def __init__(self, message: str = "Registration payment failed"):
+        super().__init__(message)
+
+class RegistrationValidationFailed(RegistrationException):
+    """Exception raised when registration validation fails"""
+    def __init__(self, message: str = "Registration validation failed", errors: dict = None):
+        self.errors = errors or {}
+        super().__init__(message)
+
+class UserCreationFailed(RegistrationException):
+    """Exception raised when user creation fails"""
+    def __init__(self, message: str = "User creation failed"):
+        super().__init__(message)
+
+class TenantCreationFailed(RegistrationException):
+    """Exception raised when tenant creation fails"""
+    def __init__(self, message: str = "Tenant creation failed"):
+        super().__init__(message)
+
+class RegistrationFlowInterrupted(RegistrationException):
+    """Exception raised when registration flow is interrupted"""
+    def __init__(self, message: str = "Registration flow interrupted"):
+        super().__init__(message)
+
+class EmailAlreadyRegistered(RegistrationException):
+    """Exception raised when email is already registered"""
+    def __init__(self, message: str = "Email already registered"):
+        super().__init__(message)
+
+class RegistrationStateInvalid(RegistrationException):
+    """Exception raised when registration state is invalid"""
+    def __init__(self, message: str = "Registration state is invalid"):
+        super().__init__(message)
+
+
+class RegistrationStateError(RegistrationException):
+    """Exception raised when registration state operations fail"""
+    def __init__(self, message: str = "Registration state error"):
+        super().__init__(message)
+
+
+class InvalidStateTransitionError(RegistrationException):
+    """Exception raised when an invalid state transition is attempted"""
+    def __init__(self, message: str = "Invalid state transition"):
+        super().__init__(message)