registry

type InvalidKeyProviderError struct {
	KeyProvider keyprovider.Descriptor
	Cause       error
}

type InvalidMethodError struct {
	Method method.Descriptor
	Cause  error
}

type KeyProviderAlreadyRegisteredError struct {
	ID               keyprovider.ID
	CurrentProvider  keyprovider.Descriptor
	PreviousProvider keyprovider.Descriptor
}

type KeyProviderNotFoundError struct {
	ID keyprovider.ID
}

type MethodAlreadyRegisteredError struct {
	ID             method.ID
	CurrentMethod  method.Descriptor
	PreviousMethod method.Descriptor
}

type MethodNotFoundError struct {
	ID method.ID
}

type Registry interface {
	// RegisterKeyProvider registers a key provider. Use the keyprovider.Any().
	// This function returns a *KeyProviderAlreadyRegisteredError error if a key provider with the
	// same ID is already registered.
	RegisterKeyProvider(keyProvider keyprovider.Descriptor) error
	// RegisterMethod registers an encryption method. Use the method.Any() function to convert your method into a
	// suitable format. This function returns a *MethodAlreadyRegisteredError error if a key provider with the same ID is
	// already registered.
	RegisterMethod(method method.Descriptor) error

	// GetKeyProviderDescriptor returns the key provider with the specified ID. If the key provider is not registered,
	// it will return a *KeyProviderNotFoundError error.
	GetKeyProviderDescriptor(id keyprovider.ID) (keyprovider.Descriptor, error)

	// GetMethodDescriptor returns the method with the specified ID.
	// If the method is not registered, it will return a *MethodNotFoundError.
	GetMethodDescriptor(id method.ID) (method.Descriptor, error)
}