Files
tg-chat-bot/src/commands/qr.ts
T
2026-03-18 13:44:03 +03:00

71 lines
2.4 KiB
TypeScript

import {Command} from "../base/command";
import {Message} from "typescript-telegram-bot-api";
import {extractMessagePayload, logError, replyToMessage} from "../util/utils";
import {bot, botUser} from "../index";
import QRCode from "qrcode";
export class Qr extends Command {
argsMode = "optional" as const;
title = "/qr";
description = "Generates QR-code from text you sent or replied to.";
async execute(msg: Message, match?: RegExpExecArray): Promise<void> {
const chatId = msg.chat.id;
let payload = extractMessagePayload(msg, match?.[3]);
if (!payload) {
await replyToMessage(
{
message: msg,
text: "Не найден текст для генерации QR-кода."
}
);
return;
}
// TODO: 16/02/2026, Danil Nikolaev: escape html symbols in payload
if (payload.length > 1500) {
payload = payload.slice(0, 1500);
await replyToMessage(
{
message: msg,
text: `Слишком длинный текст для QR (${payload.length} символов). Текст будет обрезан до 1500 символов.`
}
);
}
try {
await bot.sendChatAction({chat_id: chatId, action: "upload_photo"});
const pngBuffer = await QRCode.toBuffer(payload, {
type: "png",
errorCorrectionLevel: "L",
margin: 2,
scale: 8,
});
const maxCaptionLength = botUser.is_premium ? 4096 : 1024;
await bot.sendPhoto({
chat_id: chatId,
photo: pngBuffer,
caption: "QR-код готов ✅\nСодержимое:\n<blockquote expandable>" +
`${payload.length > maxCaptionLength ? payload.slice(0, maxCaptionLength - 40) + "..." : payload}` +
"</blockquote>",
reply_parameters: {
message_id: msg.message_id,
},
parse_mode: "HTML"
});
} catch (e) {
await replyToMessage({
message: msg,
text: `Не получилось сгенерировать QR: ${e?.message ?? String(e)}`
}).catch(logError);
}
}
}