test

src/app/api/attendance/rankings/route.ts

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+import { NextResponse } from "next/server";
+import prisma from "@/lib/prisma";
+
+function toYmdUTC(d: Date): string {
+  const yy = d.getUTCFullYear();
+  const mm = String(d.getUTCMonth() + 1).padStart(2, "0");
+  const dd = String(d.getUTCDate()).padStart(2, "0");
+  return `${yy}-${mm}-${dd}`;
+}
+
+export async function GET() {
+  // 전체 출석 누적 상위 (Top 10)
+  const overallGroups = await prisma.attendance.groupBy({
+    by: ["userId"],
+    _count: { _all: true },
+    orderBy: { _count: { _all: "desc" } },
+    take: 20,
+  });
+  const overallUserIds = overallGroups.map((g) => g.userId);
+  const overallUsers = await prisma.user.findMany({
+    where: { userId: { in: overallUserIds } },
+    select: { userId: true, nickname: true, profileImage: true, grade: true },
+  });
+  const userMeta = new Map(overallUsers.map((u) => [u.userId, u]));
+  const overall = overallGroups.map((g) => ({
+    userId: g.userId,
+    nickname: userMeta.get(g.userId)?.nickname ?? "회원",
+    count: g._count._all,
+    profileImage: userMeta.get(g.userId)?.profileImage ?? null,
+    grade: userMeta.get(g.userId)?.grade ?? 0,
+  }));
+
+  // 연속 출석 상위 (Top 10, 현재 연속 기준)
+  const now = new Date();
+  const todayUTC = new Date(Date.UTC(now.getUTCFullYear(), now.getUTCMonth(), now.getUTCDate(), 0, 0, 0, 0));
+  const past = new Date(todayUTC);
+  past.setUTCDate(past.getUTCDate() - 60); // 최근 60일 데이터만으로 streak 계산
+  const recent = await prisma.attendance.findMany({
+    where: { date: { gte: past } },
+    select: { userId: true, date: true },
+    orderBy: { userId: "asc" },
+  });
+  const map = new Map<string, Set<string>>();
+  for (const r of recent) {
+    const set = map.get(r.userId) ?? new Set<string>();
+    set.add(toYmdUTC(new Date(r.date)));
+    map.set(r.userId, set);
+  }
+  const streakArr: { userId: string; streak: number }[] = [];
+  for (const [userId, set] of map.entries()) {
+    let streak = 0;
+    let cursor = new Date(todayUTC);
+    while (streak < 60) {
+      const ymd = toYmdUTC(cursor);
+      if (set.has(ymd)) {
+        streak += 1;
+        cursor.setUTCDate(cursor.getUTCDate() - 1);
+      } else {
+        break;
+      }
+    }
+    if (streak > 0) streakArr.push({ userId, streak });
+  }
+  streakArr.sort((a, b) => b.streak - a.streak);
+  const topStreak = streakArr.slice(0, 20);
+  const streakUserIds = topStreak.map((s) => s.userId);
+  const streakUsers = await prisma.user.findMany({
+    where: { userId: { in: streakUserIds } },
+    select: { userId: true, nickname: true, profileImage: true, grade: true },
+  });
+  const streakMeta = new Map(streakUsers.map((u) => [u.userId, u]));
+  const streak = topStreak.map((s) => ({
+    userId: s.userId,
+    nickname: streakMeta.get(s.userId)?.nickname ?? "회원",
+    streak: s.streak,
+    profileImage: streakMeta.get(s.userId)?.profileImage ?? null,
+    grade: streakMeta.get(s.userId)?.grade ?? 0,
+  }));
+
+  return NextResponse.json({ overall, streak });
+}
+
+