Properly detect PM2 manager process instead of using a hardcoded ID

app.js

@@ -164,12 +164,18 @@ esmBot ${esmBotVersion} (${process.env.GIT_REV})
 
   // PM2-specific handling
   if (process.env.PM2_USAGE) {
+    // callback hell :)
     pm2.launchBus((err, pm2Bus) => {
       if (err) {
         logger.error(err);
         return;
       }
-
+      pm2.list((err, list) => {
+        if (err) {
+          logger.error(err);
+          return;
+        }
+        const managerProc = list.filter((v) => v.name === "esmBot-manager")[0];
         pm2Bus.on("process:msg", async (packet) => {
           switch (packet.data?.type) {
             case "reload":
@@ -189,8 +195,8 @@ esmBot ${esmBotVersion} (${process.env.GIT_REV})
               endBroadcast(client);
               break;
             case "serverCounts":
-            pm2.sendDataToProcessId(0, {
+              pm2.sendDataToProcessId(managerProc.pm_id, {
-              id: 0,
+                id: managerProc.pm_id,
                 type: "process:msg",
                 data: {
                   type: "serverCounts",
@@ -205,6 +211,7 @@ esmBot ${esmBotVersion} (${process.env.GIT_REV})
           }
         });
       });
+    });
   }
 
   // connect to lavalink

utils/misc.js

@@ -98,8 +98,14 @@ export function getServers(bot) {
         };
         pm2Bus.on("process:msg", listener);
       });
-      pm2.sendDataToProcessId(0, {
+      pm2.list((err, list) => {
-        id: 0,
+        if (err) {
+          reject(err);
+          return;
+        }
+        const managerProc = list.filter((v) => v.name === "esmBot-manager")[0];
+        pm2.sendDataToProcessId(managerProc.pm_id, {
+          id: managerProc.pm_id,
           type: "process:msg",
           data: {
             type: "getCount"
@@ -108,6 +114,7 @@ export function getServers(bot) {
         }, (err) => {
           if (err) reject(err);
         });
+      });
     } else {
       resolve(bot.guilds.size);
     }