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feat: precompute stream grouping during source sync (#13)

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Move variant grouping work out of Live TV rendering into the
catalog pipeline: a liveProjectionService builds the logical channel
projection (schema in liveProjectionSchema) whenever a source is
added, synced or modified (name change, new address), and the
projection is served through a /live route. ChannelList now consumes
the precomputed projection via a liveChannelProjection client
service, recalculating only when the catalog changes. Cover
projection building, incremental recompute and client consumption
with tests.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
blomios
2026-10-02 15:35:02 +02:00
parent 7b6525708c
commit 9f97020996
16 changed files with 619 additions and 10 deletions
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10
server/db/sqlite.js
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@ -1,6 +1,11 @@
const Database = require('better-sqlite3');
const path = require('path');
const fs = require('fs');
const {
ensureColumns,
LIVE_PROJECTION_COLUMNS,
LIVE_PROJECTION_SCHEMA_SQL
} = require('./liveProjectionSchema');
const dataDir = path.join(__dirname, '..', '..', 'data');
const dbPath = path.join(dataDir, 'content.db');
@ -73,6 +78,9 @@ function initSchema() {
CREATE INDEX IF NOT EXISTS idx_items_category ON playlist_items(source_id, category_id);
`);
ensureColumns(db, 'playlist_items', LIVE_PROJECTION_COLUMNS);
db.exec(LIVE_PROJECTION_SCHEMA_SQL);
// EPG Programs
// Optimized for range queries
db.exec(`
@ -247,6 +255,8 @@ const layaLanguageCache = {
module.exports = {
getDb,
initSchema,
ensureColumns,
LIVE_PROJECTION_COLUMNS,
favorites,
layaLanguageCache
};