[add] /draw 抽籤系統

app.js

@@ -28,7 +28,9 @@ bot.onText(/\/help/, function (msg) {
 	bot.sendMessage(chatId, resp);
 });
 
-// 收到roll開頭的訊息時會觸發這段程式
+/**
+ * 骰子系統
+ */
 bot.onText(/\/roll(?:@[\w_]+)?(?:\s+(\d*)d(\d+))?/i, function (msg, match) {
 	// console.log(`✅ Bot roll`);
 
@@ -47,6 +49,21 @@ bot.onText(/\/roll(?:@[\w_]+)?(?:\s+(\d*)d(\d+))?/i, function (msg, match) {
 	bot.sendMessage(chatId, resp);
 });
 
+/**
+ * 抽籤系統
+ */
+bot.onText(/\/draw(?:@[\w_]+)?\s+\[([^\]]+)\]/i, (msg, match) => {
+	const chatId = msg.chat.id;
+	const list = match[1].split(',').map(item => item.trim()).filter(Boolean);
+
+	if (list.length === 0) {
+		return bot.sendMessage(chatId, '⚠️ 請提供正確的選項格式，例如：/draw [香蕉, 你個, 芭樂]');
+	}
+
+	const pick = list[Math.floor(Math.random() * list.length)];
+	bot.sendMessage(chatId, `🎯 從 [${list.join(', ')}] 中抽出：\n👉 ${pick}`);
+});
+
 bot.onText(/\/everyone/, async (msg) => {
 	if (msg.chat.type !== 'group' && msg.chat.type !== 'supergroup') {
 		return bot.sendMessage(msg.chat.id, '⚠️ 此指令僅限群組使用');