backends

type Backend interface {
	RunWithContext(context.Context) error

	Logon(ctx context.Context, audience string, username string, password string) (success bool, userID *string, sessionRef *string, user UserFromBackend, err error)
	GetUser(ctx context.Context, userID string, sessionRef *string, requestedScopes map[string]bool) (user UserFromBackend, err error)

	ResolveUserByUsername(ctx context.Context, username string) (user UserFromBackend, err error)

	RefreshSession(ctx context.Context, userID string, sessionRef *string, claims map[string]interface{}) error
	DestroySession(ctx context.Context, sessionRef *string) error

	UserClaims(userID string, authorizedScopes map[string]bool) map[string]interface{}
	ScopesSupported() []string
	ScopesMeta() *scopes.Scopes

	Name() string
}

type UserFromBackend interface {
	identity.UserWithUsername
	BackendClaims() map[string]interface{}
	BackendScopes() []string
	RequiredScopes() []string
}