From e31ccdbd697db28460d24104688b13066d1aaaf0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=BA=90=E6=96=87=E9=9B=A8?=
 <41315874+fumiama@users.noreply.github.com>
Date: Fri, 3 Jun 2022 00:27:11 +0800
Subject: [PATCH] add only private

---
 rules.go | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/rules.go b/rules.go
index dc1fad5..fe0e4a3 100644
--- a/rules.go
+++ b/rules.go
@@ -199,6 +199,15 @@ func CheckChat(chatId ...int64) Rule {
 	}
 }
 
+// OnlyPrivate requires that the ctx.Event is private message
+func OnlyPrivate(ctx *Ctx) bool {
+	msg, ok := ctx.Value.(*tgba.Message)
+	if !ok || msg.Chat == nil { // 确保无空
+		return false
+	}
+	return msg.Chat.Type == "private"
+}
+
 // SuperUserPermission only triggered by the bot's owner
 func SuperUserPermission(ctx *Ctx) bool {
 	msg, ok := ctx.Value.(*tgba.Message)