Hide 'See Results' button when jam results are locked

backend/src/api/routes/jams.ts

@@ -4,6 +4,7 @@ import { getEntries, getEntryById } from '../../services/entries.js';
 import { selectSessionPairs } from '../../services/pairing.js';
 import {
   insertComparison,
+  getComparisonCountForJam,
   getComparisonCountForJudge,
   getComparisonsForJam,
 } from '../../services/database.js';
@@ -96,10 +97,19 @@ router.post(
         await insertComparison(slug, judgeId, vote.entryAId, vote.entryBId, vote.score);
       }
 
-      const count = await getComparisonCountForJudge(slug, judgeId);
-      const sessions = Math.floor(count / JUDGING_SESSION_SIZE);
-
-      res.json({ recorded: true, count: votes.length, sessions });
+      const [judgeCount, totalVotes] = await Promise.all([
+        getComparisonCountForJudge(slug, judgeId),
+        getComparisonCountForJam(slug),
+      ]);
+      const sessions = Math.floor(judgeCount / JUDGING_SESSION_SIZE);
+
+      res.json({
+        recorded: true,
+        count: votes.length,
+        sessions,
+        entryCount: entries.length,
+        voteCount: totalVotes,
+      });
     } catch (err) {
       console.error('Error recording session:', err);
       res.status(500).json({ error: 'Failed to record session' });

backend/src/services/database/judgingQueries.ts

@@ -105,6 +105,21 @@ export async function getComparisonCountForJudge(
   return parseCount(results[0]?.count);
 }
 
+/**
+ * Get total comparison count for a jam.
+ */
+export async function getComparisonCountForJam(jamSlug: string): Promise<number> {
+  const sql = getSql();
+
+  const results = await sql<{ count: string }[]>`
+    SELECT COUNT(*) as count
+    FROM jam_comparisons
+    WHERE jam_slug = ${jamSlug}
+  `;
+
+  return parseCount(results[0]?.count);
+}
+
 /**
  * Get unique judge count for a jam.
  */

client/src/hooks/useJudging.tsx

@@ -1,5 +1,6 @@
 import { useState, useEffect, useCallback, useReducer } from 'react';
 import { JUDGING_SESSION_SIZE } from '../constants/judging';
+import { CONFIDENCE_N } from '../utils/jam';
 
 export interface EntryMetrics {
   classification: 'Whole Game' | 'Feature';
@@ -93,6 +94,8 @@ interface SessionState {
   fetchedAt: number;
   status: Status;
   sessions: number;
+  entryCount: number;
+  voteCount: number;
   error: string | null;
 }
 
@@ -103,6 +106,8 @@ const initialState: SessionState = {
   fetchedAt: 0,
   status: 'loading',
   sessions: 0,
+  entryCount: 0,
+  voteCount: 0,
   error: null,
 };
 
@@ -112,7 +117,7 @@ type SessionAction =
   | { type: 'GO_BACK' }
   | { type: 'RESET' }
   | { type: 'SUBMIT_START' }
-  | { type: 'SUBMIT_SUCCESS'; sessions: number }
+  | { type: 'SUBMIT_SUCCESS'; sessions: number; entryCount: number; voteCount: number }
   | { type: 'SUBMIT_ERROR'; error: string }
   | { type: 'SET_ERROR'; error: string };
 
@@ -161,7 +166,7 @@ function sessionReducer(state: SessionState, action: SessionAction): SessionStat
       return { ...state, status: 'submitting' };
 
     case 'SUBMIT_SUCCESS':
-      return { ...state, status: 'submitted', sessions: action.sessions };
+      return { ...state, status: 'submitted', sessions: action.sessions, entryCount: action.entryCount, voteCount: action.voteCount };
 
     case 'SUBMIT_ERROR':
       return { ...state, status: 'review', error: action.error };
@@ -287,7 +292,7 @@ export function useJudging(jamSlug: string) {
 
       const data = await res.json();
       clearSession(jamSlug);
-      dispatch({ type: 'SUBMIT_SUCCESS', sessions: data.sessions ?? 0 });
+      dispatch({ type: 'SUBMIT_SUCCESS', sessions: data.sessions ?? 0, entryCount: data.entryCount ?? 0, voteCount: data.voteCount ?? 0 });
     } catch (e) {
       dispatch({ type: 'SUBMIT_ERROR', error: e instanceof Error ? e.message : 'Failed to submit session' });
     }
@@ -309,13 +314,16 @@ export function useJudging(jamSlug: string) {
     total: state.pairs.length || JUDGING_SESSION_SIZE,
   };
 
+  const resultsUnlocked = state.entryCount > 0 && state.voteCount >= state.entryCount * CONFIDENCE_N;
+
   return {
     user,
     pair,
     progress,
     loading: state.status === 'loading',
     status: state.status,
     sessions: state.sessions,
+    resultsUnlocked,
     error: state.error,
     votes: state.votes,
     pairs: state.pairs,

client/src/pages/Judge.tsx

@@ -15,6 +15,7 @@ export default function Judge() {
     loading,
     status,
     sessions,
+    resultsUnlocked,
     error,
     canGoBack,
     submitScore,
@@ -92,7 +93,11 @@ export default function Judge() {
           <button className="judge-continue-btn" onClick={startNewSession}>
             Submit More Votes
           </button>
-          <Link to={`/judge/${slug}/results`} className="judge-back-btn">See Results</Link>
+          {resultsUnlocked ? (
+            <Link to={`/judge/${slug}/results`} className="judge-back-btn">See Results</Link>
+          ) : (
+            <Link to="/judge" className="judge-back-btn">Back to Jams</Link>
+          )}
         </div>
       </div>
     );