feat: update recalculate-elo API to support multiple rating systems

src/app/api/admin/recalculate-elo/route.ts

@@ -2,16 +2,21 @@ import { NextResponse } from 'next/server';
 import { prisma } from '@/lib/prisma';
 import { hasRole } from '@/lib/permissions';
 import { recalculateAllElo } from '@/lib/elo-utils';
+import { recalculateAllOpenSkill } from '@/lib/openskill-utils';
+import { recalculateAllGlicko2 } from '@/lib/glicko2-utils';
 
 /**
  * POST /api/admin/recalculate-elo
  * 
- * Triggers a full recalculation of all ELO ratings and player statistics.
+ * Triggers a full recalculation of all rating systems (Elo, OpenSkill, Glicko2).
  * This endpoint is idempotent - running it multiple times produces the same result.
  * 
  * Requires: club_admin role
+ * 
+ * Query parameters:
+ * - ratingSystem: 'all' (default), 'elo', 'openskill', 'glicko2'
  */
-export async function POST() {
+export async function POST(request: Request) {
   try {
     // Check if user has club_admin role
     const permission = await hasRole('club_admin');
@@ -22,18 +27,34 @@ export async function POST() {
       );
     }
 
-    // Perform the recalculation
+    // Parse request body to get rating system preference
-    const result = await recalculateAllElo(prisma);
+    const body = await request.json().catch(() => ({}));
+    const ratingSystem = body.ratingSystem || 'all';
+
+    const results: Record<string, any> = {};
+
+    // Perform recalculations based on rating system
+    if (ratingSystem === 'all' || ratingSystem === 'elo') {
+      results.elo = await recalculateAllElo(prisma);
+    }
+
+    if (ratingSystem === 'all' || ratingSystem === 'openskill') {
+      results.openskill = await recalculateAllOpenSkill(prisma);
+    }
+
+    if (ratingSystem === 'all' || ratingSystem === 'glicko2') {
+      results.glicko2 = await recalculateAllGlicko2(prisma);
+    }
 
     return NextResponse.json({
       success: true,
-      message: 'ELO recalculation completed successfully',
+      message: `Rating recalculation completed successfully for: ${ratingSystem}`,
-      data: result,
+      data: results,
     });
   } catch (error) {
-    console.error('Error during ELO recalculation:', error);
+    console.error('Error during rating recalculation:', error);
     return NextResponse.json(
-      { error: 'Failed to recalculate ELO ratings' },
+      { error: 'Failed to recalculate ratings' },
       { status: 500 }
     );
   }