feat: extract upload date for 1337x results

Parse the "Date uploaded" field from 1337x detail pages into TorrentResult.added, matching the other sources. Reuses the detail-page fetch already done for the magnet, so no extra requests are made.

src/sources/x1337.test.ts

@@ -0,0 +1,23 @@
+import { describe, it, expect } from "vitest";
+import { parseUploadDate } from "./x1337";
+
+const detail = (span: string) =>
+  `<ul class="list"><li><strong>Date uploaded</strong><span>${span}</span> </li></ul>`;
+
+describe("parseUploadDate", () => {
+  it("parses the 'Mon. Dayth \\'YY' format to a UTC unix timestamp", () => {
+    const ts = parseUploadDate(detail("Jun. 26th  '26"));
+    expect(ts).toBe(Math.floor(Date.UTC(2026, 5, 26) / 1000));
+  });
+
+  it("handles single-digit days and other ordinals", () => {
+    expect(parseUploadDate(detail("Jan. 1st '24"))).toBe(Math.floor(Date.UTC(2024, 0, 1) / 1000));
+    expect(parseUploadDate(detail("Mar. 3rd '25"))).toBe(Math.floor(Date.UTC(2025, 2, 3) / 1000));
+    expect(parseUploadDate(detail("Dec. 22nd '23"))).toBe(Math.floor(Date.UTC(2023, 11, 22) / 1000));
+  });
+
+  it("returns undefined when the field is missing or unparseable", () => {
+    expect(parseUploadDate("<div>no date here</div>")).toBeUndefined();
+    expect(parseUploadDate(detail("sometime"))).toBeUndefined();
+  });
+});

src/sources/x1337.ts

@@ -46,11 +46,33 @@ async function fetchText(url: string, opts: SearchOptions, retries: number): Pro
   return res.text();
 }
 
-async function detailMagnet(base: string, path: string, opts: SearchOptions): Promise<string | null> {
+const MONTHS: Record<string, number> = {
+  jan: 0, feb: 1, mar: 2, apr: 3, may: 4, jun: 5,
+  jul: 6, aug: 7, sep: 8, oct: 9, nov: 10, dec: 11,
+};
+
+// 1337x detail pages render "Date uploaded" as e.g. "Jun. 26th  '26".
+export function parseUploadDate(html: string): number | undefined {
+  const m = html.match(/Date uploaded<\/strong>\s*<span>\s*([A-Za-z]{3})\.?\s+(\d{1,2})[a-z]{2}\s*'(\d{2})/i);
+  if (!m) return undefined;
+  const month = MONTHS[m[1]!.toLowerCase()];
+  if (month === undefined) return undefined;
+  const day = Number(m[2]);
+  const year = 2000 + Number(m[3]);
+  const secs = Math.floor(Date.UTC(year, month, day) / 1000);
+  return Number.isNaN(secs) ? undefined : secs;
+}
+
+async function detailInfo(
+  base: string,
+  path: string,
+  opts: SearchOptions,
+): Promise<{ magnet: string; added?: number } | null> {
   try {
     const html = await fetchText(`${base}${path}`, opts, 1);
     const raw = html.match(/magnet:\?xt=urn:btih:[^"'<>\s]+/i)?.[0];
-    return raw ? unescapeEntities(raw) : null;
+    if (!raw) return null;
+    return { magnet: unescapeEntities(raw), added: parseUploadDate(html) };
   } catch {
     return null;
   }
@@ -97,9 +119,9 @@ async function search(
   const rows = matched.slice(0, MAX_DETAILS);
   const settled = await Promise.all(
     rows.map(async (row): Promise<TorrentResult | null> => {
-      const magnet = await detailMagnet(base, row.path, opts);
-      const infoHash = magnet?.match(/urn:btih:([a-zA-Z0-9]+)/i)?.[1]?.toLowerCase();
-      if (!magnet || !infoHash) return null;
+      const detail = await detailInfo(base, row.path, opts);
+      const infoHash = detail?.magnet?.match(/urn:btih:([a-zA-Z0-9]+)/i)?.[1]?.toLowerCase();
+      if (!detail || !infoHash) return null;
       return {
         infoHash,
         name: row.name,
@@ -107,7 +129,8 @@ async function search(
         seeders: row.seeders,
         leechers: row.leechers,
         source,
-        magnet,
+        magnet: detail.magnet,
+        added: detail.added,
       };
     }),
   );