Edit court names mid-session

[javaisbetterthanpython]

Summary

Court names/labels can be customized at game setup on /new, but mid-session there is no way to rename courts. The in-game Edit courts modal (CourtsModal) only changes court count — state.courtNames is never updated after new-game, and rounds always display the current global names (state.courtNames[index] || index + 1).

Organizers often need to relabel courts when rotating groups, when a court becomes unavailable, or when physical court numbers do not match the default 1-based sequence.

Current behavior

• Setup (/new): "Customize court names" toggle, per-court inputs, quick-set presets (1,2,3… / evens / odds), validation for empty/duplicate names.
• In-game (/rounds): Court button opens CourtsModal with count only; labels are read-only.
• Display: All rounds (including historical) use the current state.courtNames; there is no per-round court-name snapshot (unlike player names in Edit player names (in-game + setup) #31).
• Count changes: editCourts updates courts but does not resize or reconcile courtNames.

UX

• Where: Extend the existing Edit courts modal on /rounds (and optionally keep /new in sync when returning to setup — already loads state.courtNames).
• Control: When customizing, show the same per-court name inputs and quick-set presets as /new.
• Toggle: "Customize court names" switch — when off, display defaults (1, 2, 3… by court index).
• Save paths:
  • Rename only (count unchanged): apply immediately — no round regeneration required.
  • Count changed: existing Redo round / New round flows unchanged; reconcile courtNames length (truncate extras, default-fill new slots).
• Validation: Same as setup — non-empty when customizing, no duplicate trimmed names.

Historical rounds

• Default: Renaming courts updates labels on all rounds (past and current), since court index → label is a display concern, not match data.
• Optional stretch: Per-round court-name snapshot if we later need "Court A was called Court 3 in round 1" — out of scope unless requested.

Acceptance criteria

• Court names editable mid-session from the courts modal on /rounds
• Customize toggle + per-court inputs + quick-set presets (parity with /new)
• Name-only edits apply without regenerating the current round
• Count change reconciles courtNames array length and preserves existing names where possible
• Empty/duplicate name validation matches setup behavior
• Updated names persist in session cache (localStorage)
• All rounds display updated court labels immediately
• yarn test:ci and yarn build pass

Files likely touched

• src/CourtsModal.tsx — add name editing UI
• src/useShuffler.tsx — new action (e.g. edit-court-names) and editCourts reconciliation for courtNames
• pages/rounds.tsx — wire modal submit for name-only vs count changes
• pages/new.tsx — optional: extract shared court-name inputs component to avoid duplication

Dependencies

none

Related

• Edit player names (in-game + setup) #31 (Edit player names) — similar mid-session edit pattern
• Fix blank rounds, re-jumble, and court-count bugs #28 (court-count bugs) — ensure name edits do not regress court-count flows