Skip to main content

Domain Package

The Domain package contains the essential business logic and core entities of the application.

Domain Package

Model Package​

Defines key data classes representing core business entities:

  • User: Represents a user with properties like id, email, and hasPremiumAccess.
  • AuthProvider: Enum for authentication methods (e.g., GOOGLE, APPLE).
  • Subscription: Represents subscription information and access levels.
  • GenerationOutput / GenerationInput: Models for AI generation workflow.
  • CreditTransaction / CreditSystemConfig: Models for the credit system (balance, transactions, configuration).

Exceptions Package​

Contains custom exception classes that handle specific error scenarios within the application.

  • UnAuthorizedException: Thrown when a user attempts to perform an operation without being logged in. In your UiStateHolder, you can catch this exception and navigate to the sign-in screen. See ProfileUiStateHolder for an example.
  • PurchaseRequiredException: Thrown when an operation requires a premium subscription that the user does not have.
  • CreditRequiredException: Thrown when an operation requires credits that the user does not have sufficient balance for.
  • UserAlreadyExistsException: Thrown when attempting to create a user that already exists.