test

src/app/api/attendance/me-stats/route.ts

@@ -0,0 +1,66 @@
+import { NextResponse } from "next/server";
+import prisma from "@/lib/prisma";
+import { getUserIdFromRequest } from "@/lib/auth";
+
+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(req: Request) {
+  const userId = getUserIdFromRequest(req);
+  if (!userId) return NextResponse.json({ total: 0, currentStreak: 0, maxStreak: 0 });
+
+  // 총 출석일
+  const total = await prisma.attendance.count({ where: { userId } });
+
+  // 모든 출석일(UTC 자정 기준) 가져와서 streak 계산
+  const rows = await prisma.attendance.findMany({
+    where: { userId },
+    select: { date: true },
+    orderBy: { date: "asc" },
+  });
+  const days = Array.from(new Set(rows.map((r) => toYmdUTC(new Date(r.date))))); // unique, asc
+
+  // 현재 연속 출석
+  let currentStreak = 0;
+  if (days.length > 0) {
+    const set = new Set(days);
+    const now = new Date();
+    let cursor = new Date(Date.UTC(now.getUTCFullYear(), now.getUTCMonth(), now.getUTCDate(), 0, 0, 0, 0));
+    while (true) {
+      const ymd = toYmdUTC(cursor);
+      if (set.has(ymd)) {
+        currentStreak += 1;
+        cursor.setUTCDate(cursor.getUTCDate() - 1);
+      } else {
+        break;
+      }
+    }
+  }
+
+  // 최대 연속 출석
+  let maxStreak = 0;
+  if (days.length > 0) {
+    // scan through sorted list
+    let localMax = 1;
+    for (let i = 1; i < days.length; i++) {
+      const prev = new Date(days[i - 1] + "T00:00:00.000Z");
+      const cur = new Date(days[i] + "T00:00:00.000Z");
+      const diff = (cur.getTime() - prev.getTime()) / (24 * 60 * 60 * 1000);
+      if (diff === 1) {
+        localMax += 1;
+      } else if (diff > 1) {
+        if (localMax > maxStreak) maxStreak = localMax;
+        localMax = 1;
+      }
+    }
+    if (localMax > maxStreak) maxStreak = localMax;
+  }
+
+  return NextResponse.json({ total, currentStreak, maxStreak });
+}
+
+