60 lines
1.8 KiB
TypeScript
60 lines
1.8 KiB
TypeScript
import {
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DOMParser,
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} from "https://deno.land/x/deno_dom@v0.1.38/deno-dom-wasm.ts";
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// maybe a bit high, maybe a bit low
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const MAX_AGE_MS = 10 * 60 * 1000;
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// > "light-dark(oklab(000, 000, 000), oklab(255, 255, 255))".length
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// 54
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const MAX_COLOR_LEN = 64;
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const colors: Record<
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string,
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{ color: string | undefined; last_checked: Date }
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> = {};
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const dom_parser = new DOMParser();
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async function get_name_color(name: string): Promise<string | undefined> {
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console.log(`fetching ${name}...`);
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const resp = await fetch(`https://cohost.org/${name}`);
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if (!resp.ok) {
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console.log(`fetching https://cohost.org/${name} failed!`);
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return;
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}
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const body = await resp.text();
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const dom = dom_parser.parseFromString(body, "text/html");
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if (!dom) {
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console.log(`parsing https://cohost.org/${name} to the dom failed!`);
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return;
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}
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for (const p of dom.querySelectorAll("p")) {
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const text = p.textContent;
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if (text.startsWith("name-color: ")) {
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return text.split("name-color: ")[1].slice(0, MAX_COLOR_LEN);
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}
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}
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}
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async function update_name_color(name: string) {
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const now = new Date();
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if (
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colors[name] &&
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now.getTime() - colors[name].last_checked.getTime() <= MAX_AGE_MS
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) {
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return;
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}
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const color = await get_name_color(name);
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colors[name] = { color, last_checked: now };
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}
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// TODO: ONE BIG REQUEST/RESPONSE DUHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHh
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Deno.serve({ port: 61266 }, async (req) => {
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const url = new URL(req.url);
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const names = url.searchParams.getAll("name").filter((name) =>
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!name.match(/\/\?/)
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);
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await Promise.all(names.map(update_name_color));
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return Response.json(colors);
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});
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