Resource Model

Room Status State Machine

Valid transitions:

waiting -> warmup | finished

warmup -> coding | finished

coding -> wrapup | finished

wrapup -> finished

Transitioning from waiting to warmup triggers:

Session record created

Active participants snapshotted into session_participants

Phase timestamps initialized

Transitioning to finished triggers:

Code snapshot saved

Session finalized with the accumulated coding duration

Report generation queued (async)

All participants notified via WebSocket