From 71d07659e32b929b8b4daa61550fb7f52fd92685 Mon Sep 17 00:00:00 2001
From: Claude <claude@kuns.dev>
Date: Fri, 12 Jun 2026 08:05:06 +0000
Subject: [PATCH] feat: Truth-Social-RSS-Parser + Coin-Keyword-Matching

---
 src/server/signals/truth.test.ts | 32 +++++++++++++++++++++++++
 src/server/signals/truth.ts      | 41 ++++++++++++++++++++++++++++++++
 2 files changed, 73 insertions(+)
 create mode 100644 src/server/signals/truth.test.ts
 create mode 100644 src/server/signals/truth.ts

diff --git a/src/server/signals/truth.test.ts b/src/server/signals/truth.test.ts
new file mode 100644
index 0000000..8087b7d
--- /dev/null
+++ b/src/server/signals/truth.test.ts
@@ -0,0 +1,32 @@
+import { describe, expect, test } from 'bun:test';
+import { matchCoins, parseTruthFeed } from './truth';
+
+const XML = `<?xml version="1.0"?><rss><channel>
+<item><link>https://trumpstruth.org/statuses/1</link><pubDate>Fri, 12 Jun 2026 01:49:56 +0000</pubDate><description><![CDATA[<p>Bitcoin is going to the MOON. Buy BTC!</p>]]></description></item>
+<item><link>https://trumpstruth.org/statuses/2</link><pubDate>Thu, 11 Jun 2026 09:00:00 +0000</pubDate><description><![CDATA[Crooked media!]]></description></item>
+</channel></rss>`;
+
+describe('parseTruthFeed', () => {
+  test('extrahiert URL, Timestamp, Klartext (Tags entfernt)', () => {
+    const posts = parseTruthFeed(XML);
+    expect(posts).toHaveLength(2);
+    expect(posts[0].url).toBe('https://trumpstruth.org/statuses/1');
+    expect(posts[0].ts).toBe(Date.parse('Fri, 12 Jun 2026 01:49:56 +0000'));
+    expect(posts[0].text).toContain('Bitcoin is going to the MOON');
+    expect(posts[0].text).not.toContain('<p>');
+  });
+});
+
+describe('matchCoins', () => {
+  test('Name case-insensitive, Ticker nur exakt groß', () => {
+    expect(matchCoins('I love BITCOIN and solana')).toEqual(['BTC', 'SOL']);
+    expect(matchCoins('Buy ETH now')).toEqual(['ETH']);
+    expect(matchCoins('the ethics committee')).toEqual([]); // 'eth' klein/Teilwort matcht nicht
+    expect(matchCoins('Das sei seitwärts')).toEqual([]); // 'SEI' nur in Großschreibung
+    expect(matchCoins('THE ARENA IS PACKED')).toEqual([]); // 'ENA' nur mit Wortgrenze
+    expect(matchCoins('Tron will be huge')).toEqual(['TRX']); // nicht handelbar, aber Event
+  });
+  test('dedupliziert Mehrfach-Erwähnungen im selben Text', () => {
+    expect(matchCoins('BTC BTC Bitcoin')).toEqual(['BTC']);
+  });
+});
diff --git a/src/server/signals/truth.ts b/src/server/signals/truth.ts
new file mode 100644
index 0000000..a4f6bf8
--- /dev/null
+++ b/src/server/signals/truth.ts
@@ -0,0 +1,41 @@
+import { COIN_KEYWORDS } from './watchlist';
+
+export interface TruthPost {
+  url: string;
+  ts: number; // Unix ms
+  text: string;
+}
+
+const esc = (s: string) => s.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+
+/** RSS-Items per Regex (kein XML-Parser nötig — Feed ist flach und stabil). */
+export function parseTruthFeed(xml: string): TruthPost[] {
+  const posts: TruthPost[] = [];
+  for (const item of xml.match(/<item>[\s\S]*?<\/item>/g) ?? []) {
+    const url = item.match(/<link>([^<]+)<\/link>/)?.[1]?.trim();
+    const pubDate = item.match(/<pubDate>([^<]+)<\/pubDate>/)?.[1];
+    const descRaw = item.match(/<description>([\s\S]*?)<\/description>/)?.[1] ?? '';
+    if (!url || !pubDate) continue;
+    const ts = Date.parse(pubDate);
+    if (Number.isNaN(ts)) continue;
+    const text = descRaw
+      .replace(/^<!\[CDATA\[|\]\]>$/g, '')
+      .replace(/<[^>]+>/g, ' ')
+      .replace(/&amp;/g, '&').replace(/&lt;/g, '<').replace(/&gt;/g, '>').replace(/&quot;/g, '"').replace(/&#39;/g, "'")
+      .replace(/\s+/g, ' ')
+      .trim();
+    posts.push({ url, ts, text });
+  }
+  return posts;
+}
+
+/** Erwähnte Coins (Symbole, dedupliziert, in COIN_KEYWORDS-Reihenfolge). */
+export function matchCoins(text: string): string[] {
+  const hits: string[] = [];
+  for (const c of COIN_KEYWORDS) {
+    const nameHit = c.names.some((n) => new RegExp(`\\b${esc(n)}\\b`, 'i').test(text));
+    const tickerHit = c.tickers.some((t) => new RegExp(`\\b${esc(t)}\\b`).test(text)); // case-sensitive
+    if (nameHit || tickerHit) hits.push(c.symbol);
+  }
+  return hits;
+}