pleshevskiy/yandexgpt_tg_bot
Archived
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

use option instead of null

Browse source
This commit is contained in:
Dmitriy Pleshevskiy 2023-07-01 14:06:47 +03:00
parent b85b65dda0
commit 961f494fa2
Signed by: pleshevskiy
GPG key ID: 79C4487B44403985
1 changed files with 11 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
main.mjs
View file

@ -1,5 +1,6 @@
import TelegramBot from "node-telegram-bot-api";
import {
option,
readerTaskEither as rte,
readonlyArray,
semigroup,
@ -17,13 +18,13 @@ console.log("The telegram bot listens for updates");
bot.on("channel_post", async (msg) => {
const link = extractMessageLink(msg);
if (!link) {
if (option.isNone(link)) {
console.log("cannot find link in msg:", msg);
return;
}
pipe(
describeArticle(link),
describeArticle(link.value),
rte.map(
flow(
readonlyArray.foldMap({
@ -44,21 +45,24 @@ bot.on("channel_post", async (msg) => {
)(config)();
});
// TODO: use option instead
function extractMessageLink(msg) {
return getTextLink(msg) || getMessageUrl(msg);
return pipe(
getTextLink(msg),
option.orElse(() => getMessageUrl(msg)),
);
}
const RE_URL =
/(http|https):\/\/([\w_-]+(?:(?:\.[\w_-]+)+))([\w.,@?^=%&:\/~+#-]*[\w@?^=%&\/~+#-])/;
function getMessageUrl(msg) {
return RE_URL.exec(msg.text)[0];
return option.fromNullable(RE_URL.exec(msg.text)?.[0]);
}
function getTextLink(msg) {
const textLink = (msg.entities ?? []).find(isTextLink);
return textLink ? textLink.url : null;
return readonlyArray.findFirstMap(
flow(option.fromPredicate(isTextLink), option.map((link) => link.url)),
)(msg.entities ?? readonnlyArray.empty);
}
function isTextLink(msgEntity) {