Fix code review findings for QP Discord notifications

- Round qpEarned and qpTotal with Math.round() so fractional tie-split
  values display as integers ("+2 QP" not "+1.5 QP")
- Swap embed colors: standings → gold (0xffd700), QP → blurple (0x5865f2)
- Add logger.error in cs2-major-stage.ts to match scoring-calculator.ts
  error handling pattern (replaces silent .catch(() => {}))
- Fix cumulative CS2 re-announcement: snapshot existing QP before writing
  and only notify participants whose QP is new or changed in this call;
  add participantIdFilter parameter to notifyQualifyingPointsUpdate
- Batch all pre-loop queries in notifyQualifyingPointsUpdate (seasons,
  draftPicks, participantNames, users, Discord IDs) to eliminate N+1
  queries across league iterations
- Add unit tests for notifyQualifyingPointsUpdate covering early-return
  paths, per-league filtering, Discord ID resolution, and participantIdFilter

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NnJP1NTYXHxL2kbE4fZaD6

app/models/cs2-major-stage.ts

@@ -18,6 +18,7 @@ import { eq, and, sql } from "drizzle-orm";
 import { getQPConfig, calculateSplitQualifyingPoints, writeEventResultsQP, recalculateParticipantQP } from "~/models/qualifying-points";
 import { deleteEventResults } from "~/models/event-result";
 import { notifyQualifyingPointsUpdate } from "~/services/qualifying-points-discord.server";
+import { logger } from "~/lib/logger";
 
 export interface Cs2StageResult {
   id: string;
@@ -439,7 +440,30 @@ export async function assignCs2EliminationQP(
     }
   }
 
+  // Snapshot existing QP before writing so the notification only covers new/changed participants,
+  // preventing earlier stage exits from being re-announced on each subsequent stage call.
+  const existingRows = await db.query.eventResults.findMany({
+    where: eq(eventResults.scoringEventId, scoringEventId),
+  });
+  const existingQPBySPId = new Map<string, number>(
+    existingRows
+      .filter((r) => r.qualifyingPointsAwarded !== null)
+      .map((r) => [r.seasonParticipantId, parseFloat(r.qualifyingPointsAwarded!)])
+  );
+
   await writeEventResultsQP(scoringEventId, sportsSeasonId, resultsByParticipant, db);
 
-  await notifyQualifyingPointsUpdate(sportsSeasonId, scoringEventId, db).catch(() => {});
+  const changedIds = new Set<string>(
+    [...resultsByParticipant.entries()]
+      .filter(([id, { qp }]) => existingQPBySPId.get(id) !== qp)
+      .map(([id]) => id)
+  );
+
+  if (changedIds.size > 0) {
+    try {
+      await notifyQualifyingPointsUpdate(sportsSeasonId, scoringEventId, db, changedIds);
+    } catch (error) {
+      logger.error(`[CS2MajorStage] QP Discord notification failed for event ${scoringEventId}:`, error);
+    }
+  }
 }

app/services/__tests__/discord.test.ts

@@ -695,7 +695,7 @@ describe("sendQualifyingPointsUpdateNotification", () => {
 
     const payload = getPayload();
     expect(payload.embeds[0].title).toBe("🏅 Qualifying Points Update — Slam League 2025");
-    expect(payload.embeds[0].color).toBe(0xffd700);
+    expect(payload.embeds[0].color).toBe(0x5865f2);
     expect(payload.embeds[0].footer).toEqual({ text: "brackt.com" });
   });
 

app/services/__tests__/qualifying-points-discord.server.test.ts

@@ -0,0 +1,294 @@
+import { describe, it, expect, vi, beforeEach } from "vitest";
+
+vi.mock("~/database/context", () => ({
+  database: vi.fn(),
+}));
+
+vi.mock("~/services/discord", () => ({
+  sendQualifyingPointsUpdateNotification: vi.fn().mockResolvedValue(undefined),
+}));
+
+vi.mock("~/models/account", () => ({
+  findDiscordIdsByUserIds: vi.fn().mockResolvedValue(new Map()),
+}));
+
+vi.mock("~/models/user", () => ({
+  getUserDisplayName: vi.fn((u: { username?: string }) => u.username ?? null),
+}));
+
+import { notifyQualifyingPointsUpdate } from "../qualifying-points-discord.server";
+import { sendQualifyingPointsUpdateNotification } from "~/services/discord";
+import { findDiscordIdsByUserIds } from "~/models/account";
+
+// ---------------------------------------------------------------------------
+// Fixtures
+// ---------------------------------------------------------------------------
+
+const SPORTS_SEASON_ID = "ss-1";
+const SCORING_EVENT_ID = "ev-1";
+const SEASON_ID = "season-1";
+const PARTICIPANT_ID = "p-1";
+const OWNER_ID = "u-1";
+const WEBHOOK_URL = "https://discord.com/api/webhooks/123/abc";
+
+function makeEvent(overrides = {}) {
+  return {
+    id: SCORING_EVENT_ID,
+    name: "Roland Garros 2025",
+    sportsSeason: { sport: { name: "Tennis" } },
+    ...overrides,
+  };
+}
+
+function makeDb(overrides: Record<string, unknown> = {}) {
+  return {
+    query: {
+      scoringEvents: {
+        findFirst: vi.fn().mockResolvedValue(makeEvent()),
+      },
+      seasonSports: {
+        findMany: vi.fn().mockResolvedValue([{ seasonId: SEASON_ID }]),
+      },
+      eventResults: {
+        findMany: vi.fn().mockResolvedValue([
+          {
+            seasonParticipantId: PARTICIPANT_ID,
+            qualifyingPointsAwarded: "10",
+            scoringEventId: SCORING_EVENT_ID,
+          },
+        ]),
+      },
+      seasonParticipantQualifyingTotals: {
+        findMany: vi.fn().mockResolvedValue([
+          { participantId: PARTICIPANT_ID, totalQualifyingPoints: "45", sportsSeasonId: SPORTS_SEASON_ID },
+        ]),
+      },
+      seasons: {
+        findMany: vi.fn().mockResolvedValue([
+          {
+            id: SEASON_ID,
+            year: 2025,
+            league: { name: "Slam League", discordWebhookUrl: WEBHOOK_URL },
+          },
+        ]),
+      },
+      draftPicks: {
+        findMany: vi.fn().mockResolvedValue([
+          {
+            participantId: PARTICIPANT_ID,
+            seasonId: SEASON_ID,
+            team: { id: "t-1", name: "Alpha FC", ownerId: OWNER_ID },
+          },
+        ]),
+      },
+      seasonParticipants: {
+        findMany: vi.fn().mockResolvedValue([{ id: PARTICIPANT_ID, name: "Carlos Alcaraz" }]),
+      },
+      users: {
+        findMany: vi.fn().mockResolvedValue([
+          { id: OWNER_ID, username: "chris", discordPingEnabled: false },
+        ]),
+      },
+      ...overrides,
+    },
+  };
+}
+
+// ---------------------------------------------------------------------------
+// Tests
+// ---------------------------------------------------------------------------
+
+beforeEach(() => {
+  vi.clearAllMocks();
+  vi.mocked(findDiscordIdsByUserIds).mockResolvedValue(new Map());
+});
+
+describe("notifyQualifyingPointsUpdate", () => {
+  it("returns early when the scoring event is not found", async () => {
+    const db = makeDb({
+      scoringEvents: { findFirst: vi.fn().mockResolvedValue(null) },
+    });
+
+    await notifyQualifyingPointsUpdate(SPORTS_SEASON_ID, SCORING_EVENT_ID, db as never);
+
+    expect(sendQualifyingPointsUpdateNotification).not.toHaveBeenCalled();
+  });
+
+  it("returns early when no season sports exist for the sports season", async () => {
+    const db = makeDb({
+      seasonSports: { findMany: vi.fn().mockResolvedValue([]) },
+    });
+
+    await notifyQualifyingPointsUpdate(SPORTS_SEASON_ID, SCORING_EVENT_ID, db as never);
+
+    expect(sendQualifyingPointsUpdateNotification).not.toHaveBeenCalled();
+  });
+
+  it("returns early when no qualifying points were awarded in the event", async () => {
+    const db = makeDb({
+      eventResults: {
+        findMany: vi.fn().mockResolvedValue([
+          { seasonParticipantId: PARTICIPANT_ID, qualifyingPointsAwarded: null },
+        ]),
+      },
+    });
+
+    await notifyQualifyingPointsUpdate(SPORTS_SEASON_ID, SCORING_EVENT_ID, db as never);
+
+    expect(sendQualifyingPointsUpdateNotification).not.toHaveBeenCalled();
+  });
+
+  it("skips leagues without a Discord webhook URL", async () => {
+    const db = makeDb({
+      seasons: {
+        findMany: vi.fn().mockResolvedValue([
+          { id: SEASON_ID, year: 2025, league: { name: "Slam League", discordWebhookUrl: null } },
+        ]),
+      },
+    });
+
+    await notifyQualifyingPointsUpdate(SPORTS_SEASON_ID, SCORING_EVENT_ID, db as never);
+
+    expect(sendQualifyingPointsUpdateNotification).not.toHaveBeenCalled();
+  });
+
+  it("skips leagues where no QP participants were drafted", async () => {
+    const db = makeDb({
+      draftPicks: {
+        findMany: vi.fn().mockResolvedValue([]),
+      },
+    });
+
+    await notifyQualifyingPointsUpdate(SPORTS_SEASON_ID, SCORING_EVENT_ID, db as never);
+
+    expect(sendQualifyingPointsUpdateNotification).not.toHaveBeenCalled();
+  });
+
+  it("calls sendQualifyingPointsUpdateNotification with correct participant data", async () => {
+    const db = makeDb();
+
+    await notifyQualifyingPointsUpdate(SPORTS_SEASON_ID, SCORING_EVENT_ID, db as never);
+
+    expect(sendQualifyingPointsUpdateNotification).toHaveBeenCalledOnce();
+    expect(sendQualifyingPointsUpdateNotification).toHaveBeenCalledWith(
+      expect.objectContaining({
+        webhookUrl: WEBHOOK_URL,
+        seasonName: "Slam League 2025",
+        eventName: "Roland Garros 2025",
+        sportName: "Tennis",
+        entries: [
+          expect.objectContaining({
+            participantName: "Carlos Alcaraz",
+            qpEarned: 10,
+            qpTotal: 45,
+            ownerUsername: "chris",
+            ownerDiscordUserId: undefined,
+          }),
+        ],
+      })
+    );
+  });
+
+  it("sends once per league, not once per participant", async () => {
+    const db = makeDb({
+      seasonSports: {
+        findMany: vi.fn().mockResolvedValue([{ seasonId: SEASON_ID }, { seasonId: "season-2" }]),
+      },
+      seasons: {
+        findMany: vi.fn().mockResolvedValue([
+          { id: SEASON_ID, year: 2025, league: { name: "League A", discordWebhookUrl: WEBHOOK_URL } },
+          { id: "season-2", year: 2025, league: { name: "League B", discordWebhookUrl: "https://discord.com/api/webhooks/456/def" } },
+        ]),
+      },
+      draftPicks: {
+        findMany: vi.fn().mockResolvedValue([
+          { participantId: PARTICIPANT_ID, seasonId: SEASON_ID, team: { name: "Alpha FC", ownerId: null } },
+          { participantId: PARTICIPANT_ID, seasonId: "season-2", team: { name: "Beta FC", ownerId: null } },
+        ]),
+      },
+    });
+
+    await notifyQualifyingPointsUpdate(SPORTS_SEASON_ID, SCORING_EVENT_ID, db as never);
+
+    expect(sendQualifyingPointsUpdateNotification).toHaveBeenCalledTimes(2);
+  });
+
+  it("resolves owner Discord ID and passes it when user has discordPingEnabled", async () => {
+    vi.mocked(findDiscordIdsByUserIds).mockResolvedValue(new Map([[OWNER_ID, "discord-999"]]));
+    const db = makeDb({
+      users: {
+        findMany: vi.fn().mockResolvedValue([
+          { id: OWNER_ID, username: "chris", discordPingEnabled: true },
+        ]),
+      },
+    });
+
+    await notifyQualifyingPointsUpdate(SPORTS_SEASON_ID, SCORING_EVENT_ID, db as never);
+
+    expect(sendQualifyingPointsUpdateNotification).toHaveBeenCalledWith(
+      expect.objectContaining({
+        entries: [expect.objectContaining({ ownerDiscordUserId: "discord-999" })],
+      })
+    );
+  });
+
+  it("omits ownerDiscordUserId when user has discordPingEnabled false", async () => {
+    const db = makeDb();
+
+    await notifyQualifyingPointsUpdate(SPORTS_SEASON_ID, SCORING_EVENT_ID, db as never);
+
+    expect(findDiscordIdsByUserIds).toHaveBeenCalledWith([]);
+    expect(sendQualifyingPointsUpdateNotification).toHaveBeenCalledWith(
+      expect.objectContaining({
+        entries: [expect.objectContaining({ ownerDiscordUserId: undefined })],
+      })
+    );
+  });
+
+  it("participantIdFilter limits notification to only specified participants", async () => {
+    const db = makeDb({
+      eventResults: {
+        findMany: vi.fn().mockResolvedValue([
+          { seasonParticipantId: PARTICIPANT_ID, qualifyingPointsAwarded: "10" },
+          { seasonParticipantId: "p-2", qualifyingPointsAwarded: "5" },
+        ]),
+      },
+      draftPicks: {
+        findMany: vi.fn().mockResolvedValue([
+          { participantId: PARTICIPANT_ID, seasonId: SEASON_ID, team: { name: "Alpha FC", ownerId: null } },
+          { participantId: "p-2", seasonId: SEASON_ID, team: { name: "Beta FC", ownerId: null } },
+        ]),
+      },
+      seasonParticipants: {
+        findMany: vi.fn().mockResolvedValue([
+          { id: PARTICIPANT_ID, name: "Carlos Alcaraz" },
+          { id: "p-2", name: "Rafael Nadal" },
+        ]),
+      },
+    });
+
+    await notifyQualifyingPointsUpdate(
+      SPORTS_SEASON_ID,
+      SCORING_EVENT_ID,
+      db as never,
+      new Set([PARTICIPANT_ID])
+    );
+
+    const call = vi.mocked(sendQualifyingPointsUpdateNotification).mock.calls[0][0];
+    expect(call.entries).toHaveLength(1);
+    expect(call.entries[0].participantName).toBe("Carlos Alcaraz");
+  });
+
+  it("does not call sendQualifyingPointsUpdateNotification when all participants are filtered out", async () => {
+    const db = makeDb();
+
+    await notifyQualifyingPointsUpdate(
+      SPORTS_SEASON_ID,
+      SCORING_EVENT_ID,
+      db as never,
+      new Set(["p-nonexistent"])
+    );
+
+    expect(sendQualifyingPointsUpdateNotification).not.toHaveBeenCalled();
+  });
+});

app/services/discord.ts

@@ -231,7 +231,7 @@ export async function sendStandingsUpdateNotification({
       {
         title: `📊 Standings Update — ${seasonName}`,
         description,
-        color: 0x5865f2, // Discord blurple
+        color: 0xffd700, // Gold
         footer: { text: "brackt.com" },
       },
     ],
@@ -292,7 +292,7 @@ export async function sendQualifyingPointsUpdateNotification({
       const label = managerLabel
         ? `${escapeMarkdown(e.participantName)} (${managerLabel})`
         : escapeMarkdown(e.participantName);
-      sections.push(`• **${label}** — +${e.qpEarned} QP`);
+      sections.push(`• **${label}** — +${Math.round(e.qpEarned)} QP`);
     }
   }
 
@@ -335,7 +335,7 @@ export async function sendQualifyingPointsUpdateNotification({
         ? escapeMarkdown(e.ownerUsername)
         : undefined;
     const managerLabel = ownerLabel ? ` (${ownerLabel})` : "";
-    sections.push(`${rankPrefix}\\. ${escapeMarkdown(e.participantName)}${managerLabel} — ${e.qpTotal} QP`);
+    sections.push(`${rankPrefix}\\. ${escapeMarkdown(e.participantName)}${managerLabel} — ${Math.round(e.qpTotal)} QP`);
   }
 
   const MAX_DESCRIPTION = 4096;
@@ -355,7 +355,7 @@ export async function sendQualifyingPointsUpdateNotification({
       {
         title: `🏅 Qualifying Points Update — ${seasonName}`,
         description,
-        color: 0xffd700, // Gold — distinguishable from standings blurple
+        color: 0x5865f2, // Discord blurple
         footer: { text: "brackt.com" },
       },
     ],

app/services/qualifying-points-discord.server.ts

@@ -11,7 +11,8 @@ import {
 export async function notifyQualifyingPointsUpdate(
   sportsSeasonId: string,
   scoringEventId: string,
-  db: ReturnType<typeof database>
+  db: ReturnType<typeof database>,
+  participantIdFilter?: Set<string>
 ): Promise<void> {
   const event = await db.query.scoringEvents.findFirst({
     where: eq(schema.scoringEvents.id, scoringEventId),
@@ -31,13 +32,14 @@ export async function notifyQualifyingPointsUpdate(
   });
   if (seasonSports.length === 0) return;
 
-  // QP earned in this specific event
+  // QP earned in this specific event (optionally scoped to participants new/changed in this call)
   const eventResultRows = await db.query.eventResults.findMany({
     where: eq(schema.eventResults.scoringEventId, scoringEventId),
   });
   const qpEarnedById = new Map<string, number>(
     eventResultRows
       .filter((r) => r.qualifyingPointsAwarded !== null)
+      .filter((r) => !participantIdFilter || participantIdFilter.has(r.seasonParticipantId))
       .map((r) => [r.seasonParticipantId, parseFloat(r.qualifyingPointsAwarded!)])
   );
 
@@ -51,23 +53,58 @@ export async function notifyQualifyingPointsUpdate(
     qpTotals.map((t) => [t.participantId, parseFloat(t.totalQualifyingPoints)])
   );
 
-  for (const { seasonId } of seasonSports) {
+  const seasonIds = seasonSports.map((s) => s.seasonId);
-    const season = await db.query.seasons.findFirst({
-      where: eq(schema.seasons.id, seasonId),
-      with: { league: true },
-    });
 
+  // Batch-fetch all season + league metadata in one query
+  const seasons = await db.query.seasons.findMany({
+    where: inArray(schema.seasons.id, seasonIds),
+    with: { league: true },
+  });
+  const seasonMap = new Map(seasons.map((s) => [s.id, s]));
+
+  // Batch-fetch all draft picks for all leagues at once, grouped by season
+  const allPicks = await db.query.draftPicks.findMany({
+    where: inArray(schema.draftPicks.seasonId, seasonIds),
+    with: { team: true },
+  });
+  const picksBySeasonId = new Map<string, (typeof allPicks)[number][]>();
+  for (const pick of allPicks) {
+    if (!picksBySeasonId.has(pick.seasonId)) picksBySeasonId.set(pick.seasonId, []);
+    picksBySeasonId.get(pick.seasonId)!.push(pick);
+  }
+
+  // Batch-fetch participant display names once (same participants across all leagues)
+  const allParticipantIds = [...qpEarnedById.keys()];
+  const participants = await db.query.seasonParticipants.findMany({
+    where: inArray(schema.seasonParticipants.id, allParticipantIds),
+  });
+  const participantNameById = new Map(participants.map((p) => [p.id, p.name]));
+
+  // Batch-fetch all team owners and their Discord IDs in two queries (not N per league)
+  const allOwnerIds = new Set<string>();
+  for (const pick of allPicks) {
+    if (pick.team.ownerId) allOwnerIds.add(pick.team.ownerId);
+  }
+  const allUsers =
+    allOwnerIds.size > 0
+      ? await db.query.users.findMany({ where: inArray(schema.users.id, [...allOwnerIds]) })
+      : [];
+  const usernameByUserId = new Map(
+    allUsers
+      .map((u) => [u.id, getUserDisplayName(u)] as [string, string | null])
+      .filter((entry): entry is [string, string] => entry[1] !== null)
+  );
+  const optedInUserIds = allUsers.filter((u) => u.discordPingEnabled).map((u) => u.id);
+  const discordIdByUserId = await findDiscordIdsByUserIds(optedInUserIds);
+
+  for (const { seasonId } of seasonSports) {
+    const season = seasonMap.get(seasonId);
     const webhookUrl = season?.league?.discordWebhookUrl;
     if (!webhookUrl) continue;
 
     const seasonName = `${season!.league!.name} ${season!.year}`;
 
-    // Map drafted participants → teams in this season
+    const picks = picksBySeasonId.get(seasonId) ?? [];
-    const picks = await db.query.draftPicks.findMany({
-      where: eq(schema.draftPicks.seasonId, seasonId),
-      with: { team: true },
-    });
-
     const teamByParticipantId = new Map<
       string,
       { teamName: string; ownerId: string | null }
@@ -85,36 +122,6 @@ export async function notifyQualifyingPointsUpdate(
     );
     if (relevantParticipantIds.length === 0) continue;
 
-    // Participant display names
-    const participants = await db.query.seasonParticipants.findMany({
-      where: inArray(schema.seasonParticipants.id, relevantParticipantIds),
-    });
-    const participantNameById = new Map(participants.map((p) => [p.id, p.name]));
-
-    // Owner usernames + Discord IDs
-    const ownerIds = [
-      ...new Set(
-        relevantParticipantIds
-          .map((id) => teamByParticipantId.get(id)?.ownerId)
-          .filter((id): id is string => id !== null && id !== undefined)
-      ),
-    ];
-
-    const users = ownerIds.length
-      ? await db.query.users.findMany({
-          where: inArray(schema.users.id, ownerIds),
-        })
-      : [];
-
-    const usernameByUserId = new Map(
-      users
-        .map((u) => [u.id, getUserDisplayName(u)] as [string, string | null])
-        .filter((entry): entry is [string, string] => entry[1] !== null)
-    );
-
-    const optedInUserIds = users.filter((u) => u.discordPingEnabled).map((u) => u.id);
-    const discordIdByUserId = await findDiscordIdsByUserIds(optedInUserIds);
-
     const entries: QPEventEntry[] = relevantParticipantIds.map((participantId) => {
       const teamInfo = teamByParticipantId.get(participantId)!;
       const ownerId = teamInfo.ownerId;