Don't ping owners on rank-only standings changes in Discord

The first score of a season displaces every other team's rank (e.g.
everyone becomes T2), which fired a mass @-ping of the whole league even
though only one owner actually scored. The Standings Changes section
pinged every team whose rank *or* points changed.

Now the section pings an owner only when that team's points genuinely
changed this event; rank-only shufflers are still displayed with their
rank delta, but by name and without a mention. Mirrors the existing
"display but don't ping" behaviour in the Scored Matches section and
preserves pings for pure season-standings sports (F1, IndyCar), where a
real scorer's points always change.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app/services/__tests__/discord.test.ts

@@ -277,6 +277,43 @@ describe("sendStandingsUpdateNotification", () => {
     expect(desc).not.toContain("Gamma");
   });
 
+  it("pings scorers but not rank-only shufflers", async () => {
+    await sendStandingsUpdateNotification({
+      webhookUrl: WEBHOOK_URL,
+      seasonName: "My League 2025",
+      standings: [
+        // Alpha scored — points changed, moved up.
+        { teamId: "a", teamName: "Alpha", totalPoints: 150, rank: 1, discordUserId: "111" },
+        // Beta was displaced down without scoring — rank changed only.
+        { teamId: "b", teamName: "Beta", totalPoints: 125, rank: 2, username: "beta_owner", discordUserId: "222" },
+      ],
+      previousStandings: new Map([
+        ["a", 125],
+        ["b", 125],
+      ]),
+      previousRanks: new Map([
+        ["a", 2],
+        ["b", 1],
+      ]),
+    });
+
+    const desc = getDescription();
+    // Beta is still displayed with its rank movement…
+    expect(desc).toContain("Beta");
+    expect(desc).toContain("↓1");
+    // …but by name, not as an @-mention.
+    expect(desc).not.toContain("<@222>");
+    // Alpha scored, so it keeps its mention.
+    expect(desc).toContain("<@111>");
+
+    const payload = getPayload();
+    // Only the scorer is pinged.
+    expect(payload.content).toContain("111");
+    expect(payload.content).not.toContain("222");
+    expect(payload.allowed_mentions.users).toContain("111");
+    expect(payload.allowed_mentions.users).not.toContain("222");
+  });
+
   it("omits rank delta when no previousRanks provided", async () => {
     await sendStandingsUpdateNotification({
       webhookUrl: WEBHOOK_URL,

app/services/discord.ts

@@ -175,13 +175,19 @@ export async function sendStandingsUpdateNotification({
   const isTied = buildTiedRankChecker(standings.map((s) => s.rank));
   const rankLabel = (rank: number) => (isTied(rank) ? `T${rank}` : `${rank}`);
 
+  // A team's points genuinely changed this event (vs. merely being displaced in
+  // rank because someone else scored). Only real scorers are pinged; rank-only
+  // shufflers are still displayed, but by name and without an @-mention.
+  const pointsChanged = (s: StandingEntry) => {
+    const prevPoints = previousStandings.get(s.teamId);
+    return prevPoints !== undefined && prevPoints !== s.totalPoints;
+  };
+
   // Standings changes section — show teams whose points or rank changed.
   const changedTeams = standings.filter((s) => {
-    const prevPoints = previousStandings.get(s.teamId);
-    const pointsChanged = prevPoints !== undefined && prevPoints !== s.totalPoints;
     const prevRank = previousRanks?.get(s.teamId);
     const rankChanged = prevRank !== undefined && prevRank !== s.rank;
-    return pointsChanged || rankChanged;
+    return pointsChanged(s) || rankChanged;
   });
 
   if (changedTeams.length > 0) {
@@ -206,7 +212,7 @@ export async function sendStandingsUpdateNotification({
       }
 
       const escapedName = escapeMarkdown(s.teamName);
-      const managerLabel = s.discordUserId
+      const managerLabel = s.discordUserId && pointsChanged(s)
         ? `<@${s.discordUserId}>`
         : s.username
           ? escapeMarkdown(s.username)
@@ -225,7 +231,7 @@ export async function sendStandingsUpdateNotification({
   // Collect Discord user IDs of all opted-in managers appearing in this notification.
   const pingUserIds = new Set<string>();
   for (const s of changedTeams) {
-    if (s.discordUserId) pingUserIds.add(s.discordUserId);
+    if (s.discordUserId && pointsChanged(s)) pingUserIds.add(s.discordUserId);
   }
   for (const m of relevantMatches ?? []) {
     if (m.winnerDiscordUserId) pingUserIds.add(m.winnerDiscordUserId);