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feat(live): add language-aware flexible channel search (#23)

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Add backend language detection, flexible live channel search, iptv-org catalog caching, and protected built-in EPG source registration.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
blomios
2026-10-06 11:42:06 +02:00
parent a6759b116d
commit 2a1c745a26
11 changed files with 314 additions and 19 deletions
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50
server/services/channelLanguage.js Normal file
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const LANGUAGES = Object.freeze({
fr: { code: 'fr', short: 'FR', label: 'French' },
en: { code: 'en', short: 'EN', label: 'English' },
es: { code: 'es', short: 'ES', label: 'Spanish' },
de: { code: 'de', short: 'DE', label: 'German' },
it: { code: 'it', short: 'IT', label: 'Italian' },
pt: { code: 'pt', short: 'PT', label: 'Portuguese' }
});
const CODE_ALIASES = Object.freeze({
fr: 'fr', fra: 'fr', fre: 'fr', french: 'fr', francais: 'fr', france: 'fr',
en: 'en', eng: 'en', english: 'en', anglais: 'en', uk: 'en', us: 'en',
es: 'es', spa: 'es', spanish: 'es', espanol: 'es', spain: 'es',
de: 'de', deu: 'de', ger: 'de', german: 'de', deutsch: 'de',
it: 'it', ita: 'it', italian: 'it', italiano: 'it',
pt: 'pt', por: 'pt', portuguese: 'pt', portugues: 'pt'
});
function normalize(value) {
return String(value || '').normalize('NFKD').replace(/[\u0300-\u036f]/g, '').toLowerCase();
}
function detectLanguage(item) {
const data = item.data && typeof item.data === 'object' ? item.data : {};
const values = [item.name, item.category_name, data.groupTitle, data.tvgId, data.tvgName].filter(Boolean);
const scores = {};
const evidence = [];
const prefix = String(item.name || '').trim().match(/^(?:\|\s*([a-z-]{2,8})\s*\||\[\s*([a-z-]{2,8})\s*\]|([a-z-]{2,8})\s*\|)/i);
if (prefix) add(prefix[1] || prefix[2] || prefix[3], 70, 'name-prefix');
values.forEach((value, index) => {
const tokens = normalize(value).split(/[^a-z]+/).filter(Boolean);
for (const token of tokens) add(token, index === 0 ? 45 : 25, index === 0 ? 'name-token' : 'metadata');
});
function add(token, weight, type) {
const code = CODE_ALIASES[normalize(token)];
if (!code) return;
scores[code] = (scores[code] || 0) + weight;
evidence.push({ code, weight, type, value: String(token) });
}
const ranked = Object.entries(scores).sort((a, b) => b[1] - a[1]);
if (!ranked.length) return { code: 'und', short: 'UND', label: 'Unknown', confidence: 0, scores, evidence };
const total = ranked.reduce((sum, [, score]) => sum + score, 0);
const confidence = Math.round(ranked[0][1] / total * 100);
if (confidence < 55 || (ranked[1] && ranked[0][1] - ranked[1][1] < 15)) {
return { code: 'und', short: 'UND', label: 'Unknown', confidence: 0, scores, evidence };
}
return { ...LANGUAGES[ranked[0][0]], confidence, scores, evidence };
}
module.exports = { CODE_ALIASES, LANGUAGES, detectLanguage, normalize };