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mtg-online-drafter/docs/development/devlog/2025-12-16-213500_host_disconnect_pause.md

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Host Disconnect Pause Logic

Objective

Ensure the game pauses for all players when the Host disconnects, preventing auto-pick logic from advancing the game state. enable players to leave cleanly.

Changes

  1. Server (src/server/index.ts):

    • Refactored socket handlers.
    • Implemented startAutoPickTimer / stopAllRoomTimers helpers.
    • Updated disconnect handler: Checks if disconnected player is passed host. If true, pauses game (stops all timers).
    • Updated join_room / rejoin_room: Resumes game (restarts timers) if Host reconnects.
    • Added leave_room event handler to properly remove players from room state.

  2. Frontend (src/client/src/modules/lobby/LobbyManager.tsx):

    • Updated handleExitRoom to emit leave_room event, preventing "ghost" connections.

  3. Frontend (src/client/src/modules/lobby/GameRoom.tsx):

    • Fixed build error (unused variable setGameState) by adding game_update listener.
    • Verified "Game Paused" overlay logic exists and works with the new server state (isHostOffline).

Result

Host disconnection now effectively pauses the draft flow. Reconnection resumes it. Players can leave safely.