2a1c745a26
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>
66 lines
3.2 KiB
JavaScript
66 lines
3.2 KiB
JavaScript
const API_ROOT = 'https://iptv-org.github.io/api';
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function normalize(value) {
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return String(value || '').normalize('NFKD').replace(/[\u0300-\u036f]/g, '')
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.toLowerCase().replace(/[^a-z0-9]+/g, ' ').trim();
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}
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function parseJson(value, fallback = []) {
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try { return JSON.parse(value); } catch { return fallback; }
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}
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async function refresh(database, fetchImpl = globalThis.fetch) {
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if (typeof fetchImpl !== 'function') throw new Error('A fetch implementation is required');
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const [channelsResponse, feedsResponse] = await Promise.all([
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fetchImpl(`${API_ROOT}/channels.json`), fetchImpl(`${API_ROOT}/feeds.json`)
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]);
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if (!channelsResponse.ok || !feedsResponse.ok) throw new Error('iptv-org API refresh failed');
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const channels = await channelsResponse.json();
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const feeds = await feedsResponse.json();
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const feedLanguages = new Map();
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for (const feed of feeds) {
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const list = feedLanguages.get(feed.channel) || new Set();
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for (const language of feed.languages || []) list.add(String(language).toLowerCase());
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feedLanguages.set(feed.channel, list);
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}
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const write = database.transaction(() => {
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database.prepare('DELETE FROM iptv_org_channels').run();
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const insert = database.prepare(`
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INSERT INTO iptv_org_channels
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(id, name, normalized_name, alt_names, country, languages, data, updated_at)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?)
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`);
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const now = Date.now();
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for (const channel of channels) {
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insert.run(channel.id, channel.name, normalize(channel.name), JSON.stringify(channel.alt_names || []),
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channel.country || null, JSON.stringify([...feedLanguages.get(channel.id) || []]), JSON.stringify(channel), now);
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}
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database.prepare(`
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INSERT INTO iptv_org_cache_state (resource, refreshed_at, item_count) VALUES ('catalog', ?, ?)
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ON CONFLICT(resource) DO UPDATE SET refreshed_at = excluded.refreshed_at, item_count = excluded.item_count
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`).run(now, channels.length);
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});
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write();
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return { refreshedAt: Date.now(), itemCount: channels.length };
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}
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function findMatch(database, channel) {
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const names = new Set([channel.displayName, channel.fingerprint, ...(channel.variants || []).map(variant => variant.name)].map(normalize).filter(Boolean));
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if (!names.size) return null;
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const direct = database.prepare(`SELECT * FROM iptv_org_channels WHERE normalized_name IN (${[...names].map(() => '?').join(',')})`).all(...names);
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const candidates = direct.length ? direct : database.prepare('SELECT * FROM iptv_org_channels').all().filter(row =>
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parseJson(row.alt_names).some(name => names.has(normalize(name)))
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);
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const language = channel.language?.code;
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const compatible = candidates.find(row => language === 'und' || parseJson(row.languages).includes(language)) || candidates[0];
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if (!compatible) return null;
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return {
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channelId: compatible.id,
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name: compatible.name,
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country: compatible.country,
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confidence: names.has(compatible.normalized_name) ? 100 : 90
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};
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}
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module.exports = { API_ROOT, findMatch, normalize, refresh };
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