Working usage thingy

src/app/api/server-usage/route.ts

@@ -0,0 +1,60 @@
+import { NextResponse } from "next/server";
+import { HttpStatusCode } from "axios";
+import validate from "../auth/auth";
+import { currentServers, servers } from "../servers/servers";
+
+function average<T>(values: Array<T>, p: (v: T) => number) {
+  return values.length > 0
+    ? values.reduce((sum, value) => sum + p(value), 0) / values.length
+    : 0;
+}
+
+const usageData = Array.from({length: 60}).map((_, i) => ({ hour: i, cpu: 0, ram: 0 }));
+var i = 0;
+
+setInterval(() => {
+  if (i > 59) {
+    usageData.shift();
+    usageData.push({
+      hour: i,
+      cpu: average(currentServers, (server) => server.cpu),
+      ram: average(currentServers, (server) => server.memory)
+    });
+  } else {
+    usageData[i] = {
+      hour: i,
+      cpu: average(currentServers, (server) => server.cpu),
+      ram: average(currentServers, (server) => server.memory)
+    };
+    i++;
+  }
+}, 60000);
+
+export async function GET(request: Request) {
+  const { searchParams } = new URL(request.url);
+  if (!validate(searchParams.get("sessionId")))
+    return NextResponse.json(
+      { message: "Invalid session" },
+      { status: HttpStatusCode.Unauthorized }
+    );
+
+  const peakData = [];
+
+  for (let i = 0; i < 60; i += 6) {
+    const slice = usageData.slice(i, i + 6);
+
+    const maxCpu = Math.max(...slice.map((entry) => entry.cpu));
+    const maxRam = Math.max(...slice.map((entry) => entry.ram));
+
+    peakData.push({
+      hour: slice[0].hour,
+      cpu: maxCpu,
+      ram: maxRam
+    });
+  }
+
+  return NextResponse.json({
+    message: "ok",
+    data: peakData,
+  });
+}