Started some reducing of callback in different files

server/handlers/dbFunctions/advancedFunctions/play.js

@@ -0,0 +1,23 @@
+var path = require("path");
+var mongojs = require("mongojs");
+var db = require(pathThumbnails + "/handlers/db.js");
+var find = require(pathThumbnails + "/handlers/dbFunctions/find.js");
+
+async function getNowPlaying(list, socket) {
+  return new Promise((resolve, reject) => {
+    if (typeof list !== "string" || typeof fn !== "function") {
+      socket.emit("update_required");
+      return;
+    }
+    var docs = await find(list, { now_playing: true });
+    if (docs.length === 0) {
+      resolve("No song currently playing");
+      return;
+    }
+    var title = docs[0].title;
+    if (title === undefined) resolve("No song currently playing");
+    else resolve(title);
+  });
+}
+
+module.exports.getNowPlaying = getNowPlaying;