cr

src/scripts/compute-elo-ratings.ts

@@ -12,7 +12,7 @@
  * Usage: npx ts-node --transpile-only -r tsconfig-paths/register src/scripts/compute-elo-ratings.ts
  */
 
-import { PrismaClient } from '@prisma/client';
+import { PrismaClient } from "@prisma/client";
 
 // ─────────────────────────────────────────────────────────────
 // Types
@@ -72,9 +72,9 @@ function getResultChar(
   scoreAway: number,
   isHomeTeam: boolean,
 ): string {
-  if (scoreHome > scoreAway) return isHomeTeam ? 'W' : 'L';
-  if (scoreHome < scoreAway) return isHomeTeam ? 'L' : 'W';
-  return 'D';
+  if (scoreHome > scoreAway) return isHomeTeam ? "W" : "L";
+  if (scoreHome < scoreAway) return isHomeTeam ? "L" : "W";
+  return "D";
 }
 
 function calculateFormElo(recentResults: string[]): number {
@@ -86,7 +86,7 @@ function calculateFormElo(recentResults: string[]): number {
   for (let i = 0; i < recentResults.length; i++) {
     const weight = Math.pow(FORM_DECAY, i); // Most recent = highest weight
     const result = recentResults[i];
-    const score = result === 'W' ? 3 : result === 'D' ? 1 : 0;
+    const score = result === "W" ? 3 : result === "D" ? 1 : 0;
     formScore += score * weight;
     totalWeight += 3 * weight; // Max possible per match
   }
@@ -105,14 +105,14 @@ async function computeEloRatings(): Promise<void> {
   const startTime = Date.now();
 
   try {
-    console.log('🏟️  ELO Rating Computation — Starting...');
-    console.log('─'.repeat(60));
+    console.log("🏟️  ELO Rating Computation — Starting...");
+    console.log("─".repeat(60));
 
     // 1. Fetch all finished football matches in chronological order
     const matches: MatchRecord[] = await prisma.match.findMany({
       where: {
-        sport: 'football',
-        status: 'FT',
+        sport: "football",
+        status: "FT",
         scoreHome: { not: null },
         scoreAway: { not: null },
         homeTeamId: { not: null },
@@ -126,7 +126,7 @@ async function computeEloRatings(): Promise<void> {
         scoreAway: true,
         mstUtc: true,
       },
-      orderBy: { mstUtc: 'asc' },
+      orderBy: { mstUtc: "asc" },
     });
 
     console.log(
@@ -228,7 +228,7 @@ async function computeEloRatings(): Promise<void> {
     );
 
     // 4. Bulk upsert to team_elo_ratings
-    console.log('💾 Writing to team_elo_ratings...');
+    console.log("💾 Writing to team_elo_ratings...");
 
     const BATCH_SIZE = 500;
     const teams = Array.from(eloMap.entries());
@@ -246,7 +246,7 @@ async function computeEloRatings(): Promise<void> {
               awayElo: Math.round(state.awayElo * 10) / 10,
               formElo: Math.round(state.formElo * 10) / 10,
               matchesPlayed: state.matchesPlayed,
-              recentForm: state.recentResults.join(''),
+              recentForm: state.recentResults.join(""),
             },
             create: {
               teamId,
@@ -255,7 +255,7 @@ async function computeEloRatings(): Promise<void> {
               awayElo: Math.round(state.awayElo * 10) / 10,
               formElo: Math.round(state.formElo * 10) / 10,
               matchesPlayed: state.matchesPlayed,
-              recentForm: state.recentResults.join(''),
+              recentForm: state.recentResults.join(""),
             },
           }),
         ),
@@ -276,38 +276,38 @@ async function computeEloRatings(): Promise<void> {
       .map((s) => s.overallElo)
       .sort((a, b) => b - a);
 
-    console.log('─'.repeat(60));
-    console.log('📊 ELO Rating Summary:');
+    console.log("─".repeat(60));
+    console.log("📊 ELO Rating Summary:");
     console.log(`   Teams rated:  ${eloMap.size.toLocaleString()}`);
     console.log(`   Matches used: ${processed.toLocaleString()}`);
-    console.log(`   Highest ELO:  ${overallElos[0]?.toFixed(1) ?? 'N/A'}`);
+    console.log(`   Highest ELO:  ${overallElos[0]?.toFixed(1) ?? "N/A"}`);
     console.log(
-      `   Lowest ELO:   ${overallElos[overallElos.length - 1]?.toFixed(1) ?? 'N/A'}`,
+      `   Lowest ELO:   ${overallElos[overallElos.length - 1]?.toFixed(1) ?? "N/A"}`,
     );
     console.log(
-      `   Median ELO:   ${overallElos[Math.floor(overallElos.length / 2)]?.toFixed(1) ?? 'N/A'}`,
+      `   Median ELO:   ${overallElos[Math.floor(overallElos.length / 2)]?.toFixed(1) ?? "N/A"}`,
     );
     console.log(`   Duration:     ${elapsedTotal}s`);
-    console.log('─'.repeat(60));
+    console.log("─".repeat(60));
 
     // Top 20 teams
     const topTeams = await prisma.teamEloRating.findMany({
-      orderBy: { overallElo: 'desc' },
+      orderBy: { overallElo: "desc" },
       take: 20,
       include: { team: { select: { name: true } } },
     });
 
-    console.log('\n🏆 Top 20 Teams by ELO:');
+    console.log("\n🏆 Top 20 Teams by ELO:");
     topTeams.forEach((t, i) => {
-      const form = t.recentForm.split('').join('-');
+      const form = t.recentForm.split("").join("-");
       console.log(
         `   ${String(i + 1).padStart(2)}. ${t.team.name.padEnd(25)} Overall: ${t.overallElo.toFixed(1).padStart(7)}  Home: ${t.homeElo.toFixed(1).padStart(7)}  Away: ${t.awayElo.toFixed(1).padStart(7)}  Form: ${form}`,
       );
     });
 
-    console.log('\n✅ Done!');
+    console.log("\n✅ Done!");
   } catch (error) {
-    console.error('❌ ELO computation failed:', error);
+    console.error("❌ ELO computation failed:", error);
     process.exit(1);
   } finally {
     await prisma.$disconnect();