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ctrl-c-bot.ts
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ctrl-c-bot.ts
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import { generate } from "qrcode-terminal";
import { finis } from "finis";
import { Wechaty, log, qrcodeValueToImageUrl } from "wechaty";
const bot = new Wechaty({
name: "ctrl-c-bot",
puppet: "wechaty-puppet-wechat4u"
});
const welcome = `
| __ __ _ _
| \\ \\ / /__ ___| |__ __ _| |_ _ _
| \\ \\ /\\ / / _ \\/ __| '_ \\ / _\` | __| | | |
| \\ V V / __/ (__| | | | (_| | |_| |_| |
| \\_/\\_/ \\___|\\___|_| |_|\\__,_|\\__|\\__, |
| |___/
=============== Powered by Wechaty ===============
-------- https://github.com/chatie/wechaty --------
Version: ${bot.version(true)}
I'm a bot, my superpower is:
Send message to myself before I die.
(When you press Ctrl+C, or kill me with a signal)
__________________________________________________
Hope you like it, and you are very welcome to
upgrade me to more superpowers!
Please wait... I'm trying to login in...
`;
console.log(welcome);
bot
.on("login", (user) => {
log.info("Bot", `${user.name()} login`);
bot.say("Wechaty login").catch(console.error);
})
.on("scan", (qrcode, status, data) => {
generate(qrcode, { small: true });
if (data) {
console.log(data);
}
console.log(qrcodeValueToImageUrl(qrcode));
console.log("^^^ Online QR Code Image URL ^^^ ");
console.log(`[${status}] ${qrcode} Scan QR Code above url to log in: `);
})
.on("message", async (msg) => {
console.log(msg.toString());
console.log("Please press Ctrl+C to kill me!");
console.log(
`Then I'll send my last word to myself, check it out on your Wechat!`
);
});
bot.on("error", async (e) => {
log.error("Bot", "error: %s", e);
if (bot.logonoff()) {
await bot.say("Wechaty error: " + e.message).catch(console.error);
}
});
let killChrome: NodeJS.SignalsListener;
bot
.start()
.then(() => {
const listenerList = process.listeners("SIGINT");
for (const listener of listenerList) {
if (listener.name === "killChrome") {
process.removeListener("SIGINT", listener);
killChrome = listener;
}
}
})
.catch(async (e) => {
log.error("Bot", "start() fail: %s", e);
await bot.stop();
process.exit(-1);
});
let quiting = false;
finis(async (code, signal) => {
log.info("Bot", "finis(%s, %s)", code, signal);
if (!bot.logonoff()) {
log.info("Bot", "finis() bot had been already stopped");
doExit(code);
}
if (quiting) {
log.warn("Bot", "finis() already quiting... return and wait...");
return;
}
quiting = true;
let done = false;
// let checkNum = 0
const exitMsg = `Wechaty will exit ${code} because of ${signal} `;
log.info("Bot", "finis() broadcast quiting message for bot");
await bot
.say(exitMsg)
// .then(() => bot.stop())
.catch((e) => log.error("Bot", "finis() catch rejection: %s", e))
.then(() => (done = true));
setImmediate(checkForExit);
function checkForExit() {
// if (checkNum++ % 100 === 0) {
log.info("Bot", "finis() checkForExit() checking done: %s", done);
// }
if (done) {
log.info("Bot", "finis() checkForExit() done!");
setTimeout(() => doExit(code), 1000); // delay 1 second
return;
}
// death loop to wait for `done`
// process.nextTick(checkForExit)
// setImmediate(checkForExit)
setTimeout(checkForExit, 100);
}
});
function doExit(code: number): void {
log.info("Bot", "doExit(%d)", code);
if (killChrome) {
killChrome("SIGINT");
}
process.exit(code);
}