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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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11
test/channelVariantGrouping.test.js
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@ -21,6 +21,17 @@ test('does not merge distinct numbered channels', () => {
assert.deepEqual(logical.map(item => item.fingerprint), ['bein sports 1', 'bein sports 2']);
});
test('preserves precomputed projection boundaries and display names', () => {
const logical = grouping.groupChannels([
channel('1', 'Shared Name HD', { logicalId: 'logical:a', logicalFingerprint: 'a', logicalDisplayName: 'Backend A' }),
channel('2', 'Shared Name 4K', { logicalId: 'logical:b', logicalFingerprint: 'b', logicalDisplayName: 'Backend B' })
]);
assert.deepEqual(logical.map(item => [item.id, item.displayName]), [
['logical:a', 'Backend A'],
['logical:b', 'Backend B']
]);
});
test('logical favorite and hidden state are derived from individual streams', () => {
const variants = [channel('1', 'BEIN SPORTS 1 HD'), channel('2', 'BEIN SPORTS 1 4K')];
const logical = grouping.groupChannels(variants, {