1 files changed, 0 insertions, 123 deletions
diff --git a/names/translate.js b/names/translate.js
deleted file mode 100644
index 36ab8cf..0000000
--- a/names/translate.js
+++ /dev/null
@@ -1,123 +0,0 @@
-// Post translation for coinos v3: a thin, cached front for a LibreTranslate
-// container on the same docker network. Notes are public, so nothing private
-// passes through here; the cache keys on the text itself, so a popular post
-// is translated once whoever asks.
-import { createHash } from 'node:crypto';
-import { translatable, translatePieces } from '../src/translate-split.js';
-
-const LT = process.env.LT_URL || 'http://libretranslate:5000';
-const MAX_CHARS = 5000;
-const CACHE_MAX = 20000;
-const BUSY_MAX = 4; // LibreTranslate is CPU-bound: a few at once, the rest wait their turn
-const cache = new Map(); // sha256(target|text) -> { text, source }
-let busy = 0;
-const waiting = [];
-let langs = null, langsAt = 0;
-
-async function slot() {
-  if (busy < BUSY_MAX) { busy++; return; }
-  await new Promise((r) => waiting.push(r));
-  busy++;
-}
-function release() { busy--; const next = waiting.shift(); if (next) next(); }
-
-// The languages the container has models for: { code: [targets] }
-export async function languages() {
-  if (langs && Date.now() - langsAt < 3600_000) return langs;
-  const r = await fetch(LT + '/languages', { signal: AbortSignal.timeout(5000) });
-  if (!r.ok) throw new Error('languages ' + r.status);
-  const list = await r.json();
-  langs = Object.fromEntries(list.map((l) => [l.code, l.targets || []]));
-  if (langs['zh-Hans']) langs.zh = langs['zh-Hans']; // the app says 'zh'
-  langsAt = Date.now();
-  return langs;
-}
-
-// The app's locale codes ↔ LibreTranslate's ('zh' is Simplified there).
-const norm = (c) => String(c || '').toLowerCase().split(/[-_]/)[0];
-const toLt = (c) => (c === 'zh' ? 'zh-Hans' : c);
-
-export async function translate(text, target, source = 'auto') {
-  text = String(text || '');
-  target = norm(target);
-  source = source && source !== 'auto' ? norm(source) : 'auto';
-  if (!text.trim()) return { text: '', source };
-  if (text.length > MAX_CHARS) throw Object.assign(new Error('too long'), { status: 413 });
-  const have = await languages();
-  if (!have[toLt(target)]) throw Object.assign(new Error('unsupported language'), { status: 422 });
-  const key = createHash('sha256').update(target + '|' + source + '|' + text).digest('hex');
-  const hit = cache.get(key);
-  if (hit) { cache.delete(key); cache.set(key, hit); return hit; }
-  const { prose, tags } = translatable(text, target);
-  if (!prose.length && !tags.length) return { text, source: source === 'auto' ? null : source, nothing: true };
-  await slot();
-  try {
-    const call = async (path, body) => {
-      const r = await fetch(LT + path, {
-        method: 'POST', headers: { 'content-type': 'application/json' },
-        body: JSON.stringify(body), signal: AbortSignal.timeout(30_000),
-      });
-      const out = await r.json().catch(() => ({}));
-      if (!r.ok) throw Object.assign(new Error(out.error || path + ' ' + r.status), { status: r.status === 400 ? 422 : 502 });
-      return out;
-    };
-    let from = source, confidence = null;
-    if (from === 'auto') {
-      const d = await call('/detect', { q: [...prose.map((p) => p.prose), ...tags.map((p) => p.keep.slice(1).replace(/_/g, ' '))].join('\n') });
-      from = norm(d[0]?.language) || null;
-      confidence = d[0]?.confidence ?? null;
-      if (!from) throw Object.assign(new Error('unknown language'), { status: 422 });
-    }
-    if (from === target) return { text, source: from, confidence };
-    if (!have[toLt(from)]) throw Object.assign(new Error('unsupported language'), { status: 422 });
-    const translated = await translatePieces(text, async (qs) => {
-      const r = await call('/translate', { q: qs, source: toLt(from), target: toLt(target), format: 'text' });
-      return Array.isArray(r.translatedText) ? r.translatedText : [r.translatedText];
-    }, target);
-    const out = { text: translated, source: from, confidence };
-    cache.set(key, out);
-    if (cache.size > CACHE_MAX) cache.delete(cache.keys().next().value);
-    return out;
-  } finally { release(); }
-}
-
-// DeepL, with the reader's own API key (sent per request; never stored, and
-// not part of the cache key beyond the provider). DeepL refuses browsers
-// (no CORS), which is the only reason this passes through here. A free key
-// ends in ":fx" and has its own host.
-const DEEPL_TARGET = { en: 'EN-US', pt: 'PT-BR', zh: 'ZH-HANS' };
-export async function translateDeepl(text, target, key, fetchImpl = fetch) {
-  text = String(text || '');
-  target = norm(target);
-  if (!text.trim()) return { text: '', source: null };
-  if (text.length > MAX_CHARS) throw Object.assign(new Error('too long'), { status: 413 });
-  if (!/^[0-9a-f-]{20,}(:fx)?$/i.test(key)) throw Object.assign(new Error('bad DeepL key'), { status: 401 });
-  const ck = createHash('sha256').update('deepl|' + target + '|' + text).digest('hex');
-  const hit = cache.get(ck);
-  if (hit) { cache.delete(ck); cache.set(ck, hit); return hit; }
-  const { prose, tags } = translatable(text, target);
-  if (!prose.length && !tags.length) return { text, source: null, nothing: true };
-  const host = /:fx$/i.test(key) ? 'https://api-free.deepl.com' : 'https://api.deepl.com';
-  let from = null;
-  const translated = await translatePieces(text, async (qs) => {
-    const r = await fetchImpl(host + '/v2/translate', {
-      method: 'POST',
-      headers: { 'content-type': 'application/json', authorization: 'DeepL-Auth-Key ' + key },
-      body: JSON.stringify({ text: qs, target_lang: DEEPL_TARGET[target] || target.toUpperCase() }),
-      signal: AbortSignal.timeout(20_000),
-    });
-    if (r.status === 403 || r.status === 401) throw Object.assign(new Error('DeepL refused the key'), { status: 401 });
-    if (r.status === 456) throw Object.assign(new Error('DeepL quota exceeded'), { status: 402 });
-    if (r.status === 400) throw Object.assign(new Error('DeepL can’t translate into that language'), { status: 422 });
-    if (!r.ok) throw Object.assign(new Error('DeepL ' + r.status), { status: 502 });
-    const j = await r.json();
-    const out = (j.translations || []).map((x) => x.text);
-    from ||= norm(j.translations?.[0]?.detected_source_language) || null;
-    if (out.length !== qs.length) throw Object.assign(new Error('DeepL answered short'), { status: 502 });
-    return out;
-  }, target);
-  const out = { text: from === target ? text : translated, source: from };
-  cache.set(ck, out);
-  if (cache.size > CACHE_MAX) cache.delete(cache.keys().next().value);
-  return out;
-}