From f30bd2a4407deea9cc47bed29675c89ab61f7a02 Mon Sep 17 00:00:00 2001
From: David Haukeness <david@hauken.us>
Date: Tue, 31 Mar 2020 18:30:53 +0000
Subject: [PATCH] added hasCommandPrefix

---
 utils.go | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/utils.go b/utils.go
index f3db1ec..c4f7771 100644
--- a/utils.go
+++ b/utils.go
@@ -3,6 +3,7 @@ package main
 import (
 	"encoding/json"
 	"fmt"
+	"strings"
 
 	"samhofi.us/x/keybase/types/chat1"
 )
@@ -28,3 +29,21 @@ func getFeedbackExtendedDescription(bc botConfig) *chat1.UserBotExtendedDescript
 		MobileBody:  "Please note: Your feedback will be public!",
 	}
 }
+
+// hasCommandPrefix determines if the command matches either command or name variant
+func hasCommandPrefix(s string, baseCommand string, botName string, subCommands string) bool {
+	// if this is actually a command
+	if strings.HasPrefix(s, "!") || strings.HasPrefix(s, "@") {
+		// generate the two possible command variants
+		botCommand := fmt.Sprintf("%s %s", baseCommand, subCommands)
+		nameCommand := fmt.Sprintf("%s %s", botName, subCommands)
+		// then remove the ! or @ from the string
+		s = strings.Replace(s, "!", "", 1)
+		s = strings.Replace(s, "@", "", 1)
+		// then check if either command variant is a match to the subCommands sent
+		if strings.HasPrefix(s, botCommand) || strings.HasPrefix(s, nameCommand) {
+			return true
+		}
+	}
+	return false
+}