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import { blob } from "https://esm.town/v/std/blob?v=11";
import { email } from "https://esm.town/v/std/email?v=11";
import { fetchText } from "https://esm.town/v/stevekrouse/fetchText?v=6";
import { JSDOM } from "npm:jsdom";
const username = "ccorcos";
export default async function(interval: Interval) {
const url = "https://news.ycombinator.com/threads?id=" + username;
const html = await fetchText(url);
console.log("html", html.slice(0, 100));
const { document } = (new JSDOM(html)).window;
const comments = Array.from(document.querySelectorAll(".athing.comtr")) as any[];
const currentIds = new Set(comments.map(x => x.id));
const newIds = new Set(comments.map(x => x.id));
const key = "hn2:" + username;
const prevIds = (await blob.getJSON(key)) || [] as string[];
for (const id of prevIds) newIds.delete(id);
if (newIds.size === 0) {
console.log("No new comments.");
return;
}
for (const id of Array.from(newIds)) prevIds.push(id)
console.log(newIds.size + " new comments.");
await blob.setJSON(key, prevIds);
const newComments = comments.filter(comment => newIds.has(comment.id))
.map(comment => comment.textContent);
await email({
subject: "New HN comments",
text: url + "\n\n" + newComments.join("\n---\n"),
});
}
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