Added new utils

- isJsonString
    - This can be used to check if a string is valid json before parsing it
- getMembersInRole
    - This can be used to check online/offline/all members in a role
- (unused) SanitizePresetName

Server/utilities/utils.js

@@ -1,3 +1,7 @@
+// Debug
+const { DebugBuilder } = require("../utilities/debugBuilder");
+const log = new DebugBuilder("server", "utils");
+
 // Convert a JSON object to a buffer for the DB
 exports.JsonToBuffer = (jsonObject) => {
     return Buffer.from(JSON.stringify(jsonObject))
@@ -8,6 +12,43 @@ exports.BufferToJson = (buffer) => {
     return JSON.parse(buffer.toString());
 }
 
+/**
+ * **DISUSED**
+ * 
+ * @param {string} presetName The present name to sanitize
+ * @returns {string} The sanitized preset name to be used elsewhere 
+ */
+exports.SanitizePresetName = (presetName) => {
+    return String(presetName).toLowerCase().replace(/[\W_]+/g,"-")
+}
+
+/**
+ * Get online, offline and total members in a guild. Optionally a group can be specified to get members' statuses.
+ * 
+ * @param interaction Discord interaction object
+ * @param param0.roleName {OPTIONAL} The role name to check the members in; Defaults to 'Bots'
+ */
+exports.getMembersInRole = async (interaction, roleName = "Bots" ) => {
+    log.DEBUG("Fetching all members");
+    await interaction.guild.members.fetch() //cache all members in the server
+    const role = await interaction.guild.roles.cache.find(role => role.name === roleName); //the role to check
+    log.DEBUG("Role to check members from: ", role);
+    log.DEBUG("Members of role: ", role.members);
+    
+    // This is not working, can't get the status of the users, rest of join is untested
+    const onlineMembers = await role.members.filter(member => member.voice.channel !== null);
+    const offlineMembers = await role.members.filter(member => member.voice.channel === null);
+    const allMembers = await role.members;
+
+    log.VERBOSE("All members: ", allMembers, onlineMembers, offlineMembers)
+
+    return {
+        'online': onlineMembers, 
+        'offline': offlineMembers, 
+        'all': allMembers
+    }
+}
+
 /** Find a key in an object by its value
  * 
  * @param {*} object The object to search
@@ -16,4 +57,19 @@ exports.BufferToJson = (buffer) => {
  */
 exports.getKeyByArrayValue = (object, value) => {
     return Object.keys(object).find(key => object[key].includes(value));
-  }
+  }
+
+/**
+ * Check to see if the input is a valid JSON string
+ * 
+ * @param {*} str The string to check for valud JSON
+ * @returns {true|false}
+ */
+exports.isJsonString = (str) => {
+    try {
+        JSON.parse(str);
+    } catch (e) {
+        return false;
+    }
+    return true;
+}