Got basic last command memory working

.gitignore

@@ -1 +1,3 @@
 /bin
+/result
+sox

main.go

@@ -33,6 +33,8 @@ type BotMessage struct {
 	} `json:"message"`
 }
 
+var userLastCommandType = make(map[string]string)
+
 func main() {
 	fmt.Println("Sox started")
 	http.HandleFunc("/", commandHandler)
@@ -63,23 +65,46 @@ func commandHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	fmt.Fprintln(w, executeCommand(msg, "-999nopreviouscommand", ""))
+
+	return
+}
+
+func executeCommand(msg BotMessage, c string, b string)(string) {
+	fmt.Println("Last command: " + c)
 	command, arguments := SplitFirstWord(msg.Message.Body.Plain)
+	// value, exists := userLastCommandType[msg.User.Name]
+	if c != "-999nopreviouscommand" {
+		command = c
+	}
 	switch command {
 		case "ping":
 			fmt.Println("ping command received")
-			fmt.Fprintln(w, "Pong!")
+			userLastCommandType[msg.User.Name] = command;
-		case "trace":
+			return "Pong!"
-			fmt.Println("trace command received")
+		// case "trace":
-			var j = traceHandler(w, r, arguments, msg.User.Name)
+		// 	fmt.Println("trace command received")
-			fmt.Fprintln(w, j)
+		// 	var j = traceHandler(w, r, arguments, msg.User.Name)
+		// 	return j
 		case "math":
-			fmt.Fprintln(w, runMath(arguments))
+			userLastCommandType[msg.User.Name] = command;
+			return runMath(b+arguments)
 		case "hi":
-			fmt.Fprintln(w, "Hello " + msg.User.Name + "! How are you doing today?")
+			userLastCommandType[msg.User.Name] = command;
+			return "Hello " + msg.User.Name + "! How are you doing today?"
 		default:
-			fmt.Fprintln(w, "Command is: " + command + " arguments are: " + arguments + ". Not sure what to do...")
+			value, exists := userLastCommandType[msg.User.Name]
+			if exists {
+				return executeCommand(msg, value, command)
+			} else {
+				c = "-999invalidcommand"
+				return "Command is: " + command + " arguments are: " + arguments + ". Not sure what to do..."
 			}
-	return
+    }
+	// if c != "-999invalidcommand" {
+	// 	userLastCommandType[msg.User.Name] = command;
+	// }
+	return "error"
 }
 
 func runMath(s string)(string){