From eef139412c15d236fb797262a36f9e75fea860d9 Mon Sep 17 00:00:00 2001
From: Tom Smeding <tom.smeding@gmail.com>
Date: Sun, 28 Jun 2020 21:09:46 +0200
Subject: webclient: /help command

---
 webclient/client.html | 31 ++++++++++++++++++++++++++++---
 1 file changed, 28 insertions(+), 3 deletions(-)

diff --git a/webclient/client.html b/webclient/client.html
index 57eee90..766b035 100644
--- a/webclient/client.html
+++ b/webclient/client.html
@@ -9,6 +9,15 @@ var roomlist=[":console"];
 var currentroom=":console";
 var roomlogs=new Map([[":console",[]]]);
 
+var commandlist=[
+	{cmd:"register",usage:"/register <username> <password>"},
+	{cmd:"login",usage:"/login <username> <password>"},
+	{cmd:"createroom",usage:"/createroom"},
+	{cmd:"invite",usage:"/invite <username>  (adds to current room)"},
+	{cmd:"shrug",usage:"/shrug  (sends '¯\\_(ツ)_/¯')"},
+	{cmd:"help",usage:"/help  (show list of commands)"}
+];
+
 var uniqid=(function(){
 	var id=1;
 	return function uniqid(){
@@ -296,6 +305,16 @@ function addRoomEntry(roomid,type,args){
 	}
 }
 
+function showUsage(roomid,cmd){
+	for(var i=0;i<commandlist.length;i++){
+		if(commandlist[i].cmd==cmd){
+			addRoomEntry(roomid,"error",[now(),"Usage: "+commandlist[i].usage]);
+			return;
+		}
+	}
+	throw new Error("No usage registered for command '"+cnd+"'!");
+}
+
 function executeCommand(roomid,text){
 	var spl=fancySplit(text,true);
 	if(spl.word.length==0)return;
@@ -305,7 +324,7 @@ function executeCommand(roomid,text){
 		case "register":
 		case "login":
 			if(spl.word.length<3){
-				addRoomEntry(roomid,"error",[now(),"Usage: /"+cmd+" <username> <password>"]);
+				showUsage(roomid,cmd);
 				break;
 			}
 			creds=[spl.word[1],spl.rest[2]];
@@ -325,7 +344,7 @@ function executeCommand(roomid,text){
 
 		case "createroom":
 			if(spl.word.length!=1){
-				addRoomEntry(roomid,"error",[now(),"Usage: /createroom"]);
+				showUsage(roomid,cmd);
 				break;
 			}
 			if(!username){
@@ -344,7 +363,7 @@ function executeCommand(roomid,text){
 
 		case "invite":
 			if(spl.word.length<2){
-				addRoomEntry(roomid,"error",[now(),"Usage: /invite <username>  (adds to current room)"]);
+				showUsage(roomid,cmd);
 				break;
 			}
 			if(!username){
@@ -369,6 +388,12 @@ function executeCommand(roomid,text){
 			sendMessage(roomid,"¯\\_(ツ)_/¯");
 			break;
 
+		case "help":
+			for(var i=0;i<commandlist.length;i++){
+				addRoomEntry(roomid,"notice",[now(),commandlist[i].usage]);
+			}
+			break;
+
 		default:
 			addRoomEntry(roomid,"error",[now(),"Unknown command '"+cmd+"'"]);
 			break;
-- 
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