fix: Fix clear queue button in party mode

[marcodejongh]

Summary

• Fix data validation error when clearing queue in party mode by properly handling null/undefined values in toClimbQueueItemInput
• Add leader check to clear queue button - only visible to party leader in party mode, still available to all users in local mode
• Add server-side enforcement - only party leader can clear the queue via setQueue mutation

Problem

When clicking "Clear queue" in party mode, users got this error:

Invalid currentClimbQueueItem: Invalid UUID format, Number must be less than or equal to 5,
Expected boolean, received null, Expected number, received null, Expected string, received null,
Expected array, received null

Root Cause

1. Zod's .optional() allows undefined but NOT null, causing validation failures when queue item data contained null values from the database
2. The clear queue button was visible to all users in party mode, but should only be available to the party leader

Changes

1. use-queue-session.ts: Updated toClimbQueueItemInput to:

   • Provide defaults for required fields that might be null
   • Convert null to undefined for optional fields (mirrored, suggested, tickedBy, etc.)

2. queue-control-bar.tsx: Added leader check:

   • Show clear button if queue.length > 0 AND (not in party mode OR is the party leader)

3. resolvers.ts (backend): Added server-side enforcement:

   • Only the party leader can clear the queue (when queue.length === 0)
   • Throws error "Only the party leader can clear the queue" for non-leaders

Test plan

• In local mode (no party session): Clear queue button works as before
• In party mode as leader: Clear queue button is visible and works without validation errors
• In party mode as non-leader: Clear queue button is NOT visible
• Backend rejects clear queue requests from non-leaders with appropriate error

🤖 Generated with Claude Code

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Project	Deployment	Review	Updated (UTC)
boardsesh	Ready	Preview, Comment	Dec 27, 2025 7:11am