classement tout les mois

functions/src/rankings.js

@@ -0,0 +1,91 @@
+const admin = require("firebase-admin");
+const { onSchedule } = require("firebase-functions/v2/scheduler");
+const { logger } = require("firebase-functions/logger");
+
+const db = admin.firestore();
+
+function buildMonthContext(referenceDate) {
+  const current = referenceDate ? new Date(referenceDate) : new Date();
+  current.setHours(0, 0, 0, 0);
+  current.setDate(1);
+
+  const target = new Date(current);
+  target.setMonth(target.getMonth() - 1);
+
+  const month = target.getMonth();
+  const year = target.getFullYear();
+  const monthKey = `${year}-${String(month + 1).padStart(2, "0")}`;
+  const rangeStart = new Date(year, month, 1, 0, 0, 0, 0);
+  const rangeEnd = new Date(year, month + 1, 0, 23, 59, 59, 999);
+
+  return {
+    year,
+    month: month + 1,
+    monthKey,
+    rangeStart,
+    rangeEnd,
+  };
+}
+
+exports.snapshotMonthlyTopSongs = onSchedule(
+  {
+    schedule: "5 0 1 * *",
+    timeZone: "Europe/Paris",
+  },
+  async (event) => {
+    const { scheduleTime } = event;
+    const context = buildMonthContext(
+      scheduleTime ? new Date(scheduleTime) : new Date(),
+    );
+
+    logger.info(
+      `[snapshotMonthlyTopSongs] Start ranking for ${context.monthKey}`,
+    );
+
+    const topProjectsSnap = await db
+      .collection("projects")
+      .orderBy("views", "desc")
+      .limit(3)
+      .get();
+
+    const topProjects = topProjectsSnap.docs.map((doc, index) => {
+      const data = doc.data() || {};
+      return {
+        rank: index + 1,
+        projectId: doc.id,
+        title: data.title || null,
+        userId: data.userId || null,
+        userName: data.userName || null,
+        coverUrl: data.coverUrl || null,
+        songUrl: data.songUrl || null,
+        views: data.views || 0,
+      };
+    });
+
+    const docRef = db.collection("monthlyTopSongs").doc(context.monthKey);
+
+    const existingSnapshot = await docRef.get();
+    const payload = {
+      monthKey: context.monthKey,
+      month: context.month,
+      year: context.year,
+      range: {
+        start: admin.firestore.Timestamp.fromDate(context.rangeStart),
+        end: admin.firestore.Timestamp.fromDate(context.rangeEnd),
+      },
+      topProjects,
+      totalProjects: topProjects.length,
+      updatedAt: admin.firestore.FieldValue.serverTimestamp(),
+    };
+
+    if (!existingSnapshot.exists) {
+      payload.createdAt = admin.firestore.FieldValue.serverTimestamp();
+    }
+
+    await docRef.set(payload, { merge: true });
+
+    logger.info(
+      `[snapshotMonthlyTopSongs] Stored ${topProjects.length} projects for ${context.monthKey}`,
+    );
+  },
+);