command help

src/Help.ts

@@ -16,14 +16,47 @@ class HelpMessage extends Command {
             usage: params.usage,
             permissions: 0,
             description: params.description,
-            function: () => {
+            function: (m, a) => {
                 const helpMsg = new MessageEmbed()
-                if(helpMsg != null) {
                 helpMsg.setColor(params.color);
-                    helpMsg.setDescription(params.bottomText);
                 helpMsg.setTimestamp();
-                    helpMsg.setTitle(params.title);
                 helpMsg.setFooter(botName || '');
+                if(helpMsg != null) {
+                    if(a && a[0]) {
+                        const cmd: Command | null = cmdManager.get(a[0], 'ALL');
+                        if(cmd) {
+                            helpMsg.setTitle(`${cmd.name} ${cmd.visible ? '' : '[HIDDEN]'}`);
+                            helpMsg.setDescription(cmd.description);
+                            if(cmd.usage) helpMsg.addField('Usage:', `${prefix}${cmd.name} ${cmd.usage}`, false);
+                            if(cmd.permissions) {
+                                let permList: string = '';
+                                cmd.permissions.toArray(false).map(p => {
+                                    permList += p + '\n';
+                                });
+                                helpMsg.addField('Permissions:', permList, false);
+                            }
+                            if(cmd.aliases) {
+                                let aList: string = '';
+                                cmd.aliases.map(a => {
+                                    aList += a + '\n'; 
+                                });
+                                helpMsg.addField('Aliases:', aList, false);
+                            }
+                            if(cmd.keywords) {
+                                let kwrdList: string = '';
+                                cmd.keywords.map(k => {
+                                    kwrdList += k + '\n';
+                                });
+                                helpMsg.addField('Keywords:', kwrdList, false);
+                            }
+                        }
+                        else {
+                            throw new ReferenceError(`Command "${a[0]}" does not exist`);
+                        }
+                    }
+                    else {
+                        helpMsg.setTitle(params.title);
+                        helpMsg.setDescription(params.bottomText);
 
                         cmdManager.list.map((c) => {
                             if(c.visible) {
@@ -35,6 +68,7 @@ class HelpMessage extends Command {
                             }
                         });
                     }
+                }
                 return helpMsg;
             }
         });