Repo maintenance & add nowplaying

routes/nowplaying.js

@@ -1,11 +1,33 @@
 const { app, globalConfig } = require("../index.js")
+const { queryLastfm } = require("../liberals/nowplaying.js")
+
+var timeSinceLastLastfmQuery = Date.now()-5000
+var cachedLastfmResult = {}
+
+const notPlayingAnythingPlaceholder = {
+    "json": {
+        "playing": false
+    },
+    "html": `<span>I'm not currently listening to anything.</span>`
+}
 
 app.get("/nowplaying", (rreq,rres) => {
-    if (rreq.query.format === "html") {
-        rres.send("<span>The /nowplaying endpoint is currently under construction.</span>")
+
+    if (Date.now() < timeSinceLastLastfmQuery+5000) {
+        rres.send(cachedLastfmResult[rreq.query.format] ?? cachedLastfmResult.json)
     } else {
-        rres.send({"message":"The /nowplaying endpoint is currently under construction."})
+        timeSinceLastLastfmQuery = Date.now()
+        queryLastfm().then(response => {
+            if (response == 1) {
+                cachedLastfmResult = notPlayingAnythingPlaceholder
+            } else {
+                cachedLastfmResult = response
+            }
+
+            rres.send(cachedLastfmResult[rreq.query.format] ?? cachedLastfmResult.json)
+        })
     }
+
 })
 
 module.exports = {app}