refactor: Unify workflow across server transports #518
Description
refactor: Unify workflow across server transports
Currently, there is duplication of workflow-management logic in server transports: atomic booleans for initialized/closed state, session management, etc
Similar to #517, but for server transports.
- Consider unifying the client/server TransportState enum.
- Consider moving more logic to
AbstractTransport
Todo
- Introduce AbstractServerTransport for handling common workflow logic, similar to AbstractClientTransport
- WebSocket transport hierarchy should be refactored
- Introduce transport state + state machine (FSM) for possible transitions
- [TBD]
- Profit
Definition of done
- Current integration tests pass. Exception types might be changed for unification.
- Unit test for edge cases, especially for the state machine
See #517