// 關掉 webhook，專心用 polling 模式
// 執行以下指令取消 webhook（只需要做一次）：
// curl -F "url=" https://api.telegram.org/bot7916405163:AAGllDyNHNRTPDJ4gjwFPDi-TFDyFwD4foA/setWebhook


require('dotenv').config(); // 加這行載入 .env 檔案
const TelegramBot = require('node-telegram-bot-api');

const token = process.env.BOT_TOKEN; // 從環境變數讀取 token
//括號裡面的內容需要改為在第5步獲得的Token
const bot = new TelegramBot(token, { polling: true });
//使用Long Polling的方式與Telegram伺服器建立連線

//收到Start訊息時會觸發這段程式
bot.onText(/\/start/, function (msg) {
	const chatId = msg.chat.id; //用戶的ID
	const resp = '你好'; //括號裡面的為回應內容，可以隨意更改
	bot.sendMessage(chatId, resp); //發送訊息的function
});

bot.onText(/\/help/, function (msg) {
	const chatId = msg.chat.id;
	const resp = '才不告訴逆雷';
	bot.sendMessage(chatId, resp);
});

// 收到roll開頭的訊息時會觸發這段程式
bot.onText(/\/roll(?:@[\w_]+)?(?:\s+(\d*)d(\d+))?/i, function (msg, match) {
	// console.log(`✅ Bot roll`);

	const chatId = msg.chat.id;
	let count = parseInt(match[1]) || 1;
	let sides = parseInt(match[2]) || 6;

	if (count > 100 || sides > 1000) {
		return bot.sendMessage(chatId, '⚠️ 數字過大，請保持理性！');
	}

	const rolls = Array.from({ length: count }, () => Math.floor(Math.random() * sides) + 1);
	const total = rolls.reduce((sum, v) => sum + v, 0);

	const resp = `🎲 ${count}d${sides} 擲出：\n🎯 ${rolls.join(' + ')} = ${total}`;
	bot.sendMessage(chatId, resp);
});