Files
musicland/functions/src/rankings.js
T
2025-10-22 11:28:53 +02:00

84 lines
2.3 KiB
JavaScript

const admin = require("firebase-admin");
const { onSchedule } = require("firebase-functions/v2/scheduler");
const { refList } = require("../index");
const firestore = refList.projects.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()
);
const topProjectsSnap = await refList.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 = firestore
.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 });
}
);