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feat(bot): Spotify audio batch features, artist popularity, album cohesion (phases B/D/E) - #579
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📝 WalkthroughWalkthroughAdds Spotify batch audio-feature fetching and artist-popularity lookup (with caching), integrates these into autoplay candidate enrichment and scoring, and extends Last.fm seed blending to accept per-user weights with a new VC contribution-weight builder. Changes
Sequence DiagramsequenceDiagram
participant Client
participant QueueMgr as Queue Manager
participant LastFmAPI as Last.fm API
participant SpotifyAPI as Spotify API
participant ArtistCache as Artist Pop Cache
Client->>QueueMgr: request autoplay/enrich
QueueMgr->>QueueMgr: buildVcContributionWeights(history, vcMembers)
QueueMgr->>LastFmAPI: consumeBlendedSeedSlice(userIds, count, weights)
LastFmAPI-->>QueueMgr: seed candidates
QueueMgr->>QueueMgr: selectDiverseCandidates()
QueueMgr->>SpotifyAPI: getAudioFeatures(currentTrackId)
SpotifyAPI-->>QueueMgr: current track features
QueueMgr->>SpotifyAPI: getBatchAudioFeatures(candidateIds)
SpotifyAPI-->>QueueMgr: candidate audio features (Map)
QueueMgr->>QueueMgr: enrichWithAudioFeatures(candidates)
alt popularity boost needed
QueueMgr->>ArtistCache: lookup artistName
alt cache miss
QueueMgr->>SpotifyAPI: getArtistPopularity(artistName)
SpotifyAPI-->>ArtistCache: store popularity (number|null)
end
ArtistCache-->>QueueMgr: popularity result
QueueMgr->>QueueMgr: apply popularity bonus and re-sort
end
QueueMgr-->>Client: return enriched, scored candidates
Estimated code review effort🎯 4 (Complex) | ⏱️ ~45 minutes Possibly related PRs
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…esion scoring phase b — audio feature batch matching: - getBatchAudioFeatures(): fetches up to 100 track features in one Spotify API call - enrichWithAudioFeatures(): runs after selectDiverseCandidates; extracts Spotify IDs from track URLs, batch-fetches features, applies energy+valence delta scoring: energyDelta<0.15 && valenceDelta<0.20 → +0.15, partial match → +0.07, mismatch >0.6 → -0.10 phase d — artist popularity weighting: - getArtistPopularity(): searches Spotify, returns 0-100 popularity with module-level cache - top 3 candidates enriched post-selection when mode=popular or discover: popular mode + popularity≥70 → +0.12; discover mode + popularity≤40 → +0.12 phase e — album cohesion: - in calculateRecommendationScore: same-artist candidates with title token similarity >0.4 get +0.12 album match boost (same album/era without needing album metadata field) 18 new tests in spotifyApi.spec.ts covering all new functions and error paths
- buildVcContributionWeights(): counts manual tracks requested per vc member, normalises so total weight = member count, baseline 1 for zero-contribution members - consumeBlendedSeedSlice(): accepts optional weights map and allocates proportional seed slices (min 1 per user), falls back to equal distribution when no weights - heavy listener in a 3-person vc now gets proportionally more seed slots than someone who joined but hasn't requested anything yet - 4 new tests: equal weights, heavy listener, zero-contrib baseline, weighted blend
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Actionable comments posted: 7
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Inline comments:
In `@packages/bot/src/spotify/spotifyApi.spec.ts`:
- Line 1: Remove the leftover merge conflict markers in the spotifyApi.spec.ts
test file: search for and delete any occurrences of "<<<<<<<", "=======", and
">>>>>>>", resolve the conflicting blocks by choosing or merging the correct
test code (ensure the resulting describe/it blocks and imports are syntactically
valid), and run the tests to confirm the spec parses; specifically inspect the
top of the file and the region around the former marker at the end of the file
to reconstruct a single coherent test definition.
- Around line 9-10: The test calls jest.resetModules() after imports so the
module-scoped artistPopularityCache created in spotifyApi.ts still persists
across tests; to fix this, ensure the cache is cleared between tests by either
(A) resetting module state before each test: call jest.resetModules() in a
beforeEach and re-import getArtistPopularity (so spotifyApi.ts reinitializes
artistPopularityCache), or (B) import the module once and explicitly clear the
Map in a beforeEach by accessing the cached symbol (artistPopularityCache) via
jest.mocked or by exposing a test-only clearArtistPopularityCache helper in
spotifyApi.ts and calling that in beforeEach; update tests to use one of these
approaches so getArtistPopularity runs with a fresh cache each test.
In `@packages/bot/src/spotify/spotifyApi.ts`:
- Around line 136-149: The current logic stores null permanently on any non-OK
response or exception, causing transient Spotify errors to be treated as
permanent misses; update the code around artistPopularityCache, artistName and
the try/catch in the function that fetches popularity so that only genuine "not
found" results (e.g., a successful fetch with no artist items) are cached as
null, while transport failures and 429/5xx responses are either not cached or
cached with a short TTL; specifically, remove or change the
artistPopularityCache.set(artistName, null) in the catch and the !res.ok branch
to distinguish permanent misses from transient failures and use a short
expiration or no-cache for transient errors.
In `@packages/bot/src/utils/music/autoplay/lastFmSeeds.ts`:
- Around line 146-161: The slice allocation uses totalWeight from the entire
weights Map and forces a minimum of 1 per user which causes
under/over-allocation when userIds is a filtered subset or when count <
userIds.length; fix by computing totalWeight only over the participating userIds
(sum weights.get(id) for each id in userIds), stop forcing Math.max(1, …) so
initial fractional allocations can be zero, then convert fractions to integers
using the largest-remainder method (floor all fractional allocations, compute
remainder slots = count - sum(floors), and distribute +1 to the users with
largest fractional remainders) so sliceSizes (the array computed from
userIds/weights/count) always sums to count and never arbitrarily advances
offsets for discarded tracks.
In `@packages/bot/src/utils/music/queueManipulation.spec.ts`:
- Around line 97-98: The spec file declares the same mock twice
(dislikedTrackWeightsMock) causing a parse error; remove the duplicate
declaration so there's only a single const dislikedTrackWeightsMock = jest.fn()
in the scope (locate both occurrences of dislikedTrackWeightsMock in the test
file and delete the redundant one), then run tests to confirm parsing succeeds.
In `@packages/bot/src/utils/music/queueManipulation.ts`:
- Around line 1511-1527: The same-artist scoring block is broken: there are
stray unconditional "session novelty" increments and a mismatched brace causing
the TS1128 error, and the album-cohesion check uses sharedTitleTokenScore() >
0.4 which can never be true (that function is capped at 0.2). Fix by removing
the two stray score/reasons lines and restoring the correct else-if/else brace
structure so the session-novelty bonus is only applied in the branch where
candidateArtist !== currentArtist and not in the same-artist path; then change
the title similarity threshold in the sharedTitleTokenScore() check (used inside
the candidateArtist === currentArtist branch) to a reachable value (e.g., > 0.15
or >= 0.2) so the album match bonus can actually trigger. Ensure you touch the
block referencing candidateArtist, currentArtist, sharedTitleTokenScore,
recentArtists, score, and reasons.
- Around line 506-514: The code redundantly calls
getTrackAudioFeatures(currentTrack, requestedBy?.id ?? '') instead of reusing
the previously computed currentFeatures (fetched at lines 367-371), which can
cache a global null and block later retries; fix by passing the existing
currentFeatures into enrichWithAudioFeatures rather than calling
getTrackAudioFeatures again—locate the call that assigns currentAudioFeatures
and replace it so enrichWithAudioFeatures(selected, requestedBy?.id ?? '',
currentFeatures) is used (ensure variable name currentFeatures is in scope where
enrichWithAudioFeatures is invoked).
🪄 Autofix (Beta)
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
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📒 Files selected for processing (6)
packages/bot/src/spotify/spotifyApi.spec.tspackages/bot/src/spotify/spotifyApi.tspackages/bot/src/utils/music/autoplay/lastFmSeeds.spec.tspackages/bot/src/utils/music/autoplay/lastFmSeeds.tspackages/bot/src/utils/music/queueManipulation.spec.tspackages/bot/src/utils/music/queueManipulation.ts
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- GitHub Check: SonarCloud Scan
🧰 Additional context used
🪛 Biome (2.4.10)
packages/bot/src/spotify/spotifyApi.spec.ts
[error] 1-1: Expected a statement but instead found '======='.
(parse)
[error] 260-260: Expected an expression but instead found '>>>'.
(parse)
[error] 260-260: Expected an expression but instead found '>'.
(parse)
[error] 260-260: expected , but instead found :
(parse)
🪛 GitHub Actions: CI/CD Pipeline
packages/bot/src/utils/music/queueManipulation.ts
[error] 1616-1616: TypeScript compilation failed with TS1128: Declaration or statement expected.
resetMocks:true resets mock implementations to bare jest.fn() returning undefined. Calling .catch() on undefined throws TypeError. Wrapping in Promise.resolve() makes the chain safe regardless of return type.
The file had an orphaned '=======' merge marker at the start and was truncated at 200 lines. Replaced with a complete spec that preserves all original getAudioFeatures/searchSpotifyTrack tests and adds the new getBatchAudioFeatures/getArtistPopularity tests (24 total).
…boost - enrichWithAudioFeatures: test with Spotify candidate URLs so batch feature scoring path (lines 1153-1188) is exercised - popular mode artist popularity: covers discover/popular token fetch and getArtistPopularity call (lines 522-544)
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♻️ Duplicate comments (1)
packages/bot/src/utils/music/queueManipulation.ts (1)
506-514:⚠️ Potential issue | 🟡 MinorRedundant fetch of audio features for current track.
currentFeaturesis already computed at lines 367-371. CallinggetTrackAudioFeaturesagain here is wasteful and can cache a globalnullwhenrequestedBy?.idis empty (since''is passed instead of being guarded).Proposed fix
- const currentAudioFeatures = await getTrackAudioFeatures( - currentTrack, - requestedBy?.id ?? '', - ) const enriched = await enrichWithAudioFeatures( selected, requestedBy?.id ?? '', - currentAudioFeatures, + currentFeatures, )🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In `@packages/bot/src/utils/music/queueManipulation.ts` around lines 506 - 514, The code redundantly calls getTrackAudioFeatures for currentTrack even though currentFeatures was already computed earlier (see currentFeatures variable); remove this duplicate call and pass the already-computed currentFeatures into enrichWithAudioFeatures instead of re-fetching, and avoid passing an empty string for requester id—use requestedBy?.id or undefined (not '') when calling enrichWithAudioFeatures so a global null/empty cache isn't stored; update the call site referencing currentTrack, selected, enrichWithAudioFeatures, and getTrackAudioFeatures accordingly.
🧹 Nitpick comments (1)
packages/bot/src/utils/music/queueManipulation.ts (1)
520-522: UnnecessaryPromise.resolve()wrapper.
spotifyLinkService.getValidAccessTokenalready returns a Promise, soPromise.resolve()adds no value.Simplify
- const token = await Promise.resolve(spotifyLinkService - .getValidAccessToken(requestedBy.id)) - .catch(() => null) + const token = await spotifyLinkService + .getValidAccessToken(requestedBy.id) + .catch(() => null)🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In `@packages/bot/src/utils/music/queueManipulation.ts` around lines 520 - 522, Remove the unnecessary Promise.resolve wrapper around spotifyLinkService.getValidAccessToken in the token assignment: directly await spotifyLinkService.getValidAccessToken(requestedBy.id) and keep the existing error handling (e.g., .catch(() => null) or a try/catch) so the behavior remains the same; update the const token assignment in queueManipulation.ts where spotifyLinkService.getValidAccessToken(requestedBy.id) is used.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Duplicate comments:
In `@packages/bot/src/utils/music/queueManipulation.ts`:
- Around line 506-514: The code redundantly calls getTrackAudioFeatures for
currentTrack even though currentFeatures was already computed earlier (see
currentFeatures variable); remove this duplicate call and pass the
already-computed currentFeatures into enrichWithAudioFeatures instead of
re-fetching, and avoid passing an empty string for requester id—use
requestedBy?.id or undefined (not '') when calling enrichWithAudioFeatures so a
global null/empty cache isn't stored; update the call site referencing
currentTrack, selected, enrichWithAudioFeatures, and getTrackAudioFeatures
accordingly.
---
Nitpick comments:
In `@packages/bot/src/utils/music/queueManipulation.ts`:
- Around line 520-522: Remove the unnecessary Promise.resolve wrapper around
spotifyLinkService.getValidAccessToken in the token assignment: directly await
spotifyLinkService.getValidAccessToken(requestedBy.id) and keep the existing
error handling (e.g., .catch(() => null) or a try/catch) so the behavior remains
the same; update the const token assignment in queueManipulation.ts where
spotifyLinkService.getValidAccessToken(requestedBy.id) is used.
ℹ️ Review info
⚙️ Run configuration
Configuration used: Organization UI
Review profile: CHILL
Plan: Pro
Run ID: 466e6fe0-72d7-488a-9850-1866c6d94d88
📒 Files selected for processing (6)
packages/bot/src/spotify/spotifyApi.spec.tspackages/bot/src/spotify/spotifyApi.tspackages/bot/src/utils/music/autoplay/lastFmSeeds.spec.tspackages/bot/src/utils/music/autoplay/lastFmSeeds.tspackages/bot/src/utils/music/queueManipulation.spec.tspackages/bot/src/utils/music/queueManipulation.ts
🚧 Files skipped from review as they are similar to previous changes (4)
- packages/bot/src/utils/music/autoplay/lastFmSeeds.spec.ts
- packages/bot/src/utils/music/autoplay/lastFmSeeds.ts
- packages/bot/src/spotify/spotifyApi.spec.ts
- packages/bot/src/utils/music/queueManipulation.spec.ts
📜 Review details
⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (2)
- GitHub Check: Quality Gates
- GitHub Check: SonarCloud Scan
🔇 Additional comments (8)
packages/bot/src/spotify/spotifyApi.ts (2)
136-150: Cachingnullon transient errors persists failures indefinitely.A 429/5xx or network error caches
nullforever for that artist, preventing popularity boosts until restart. Only cachenullfor genuine "not found" (200 with empty items), not transport failures.
54-110: LGTM – batch fetch handles edge cases well.The function correctly:
- Returns early for empty input
- Respects Spotify's 100-track limit via
slice(0, 100)- Validates required
id,energy, andvalencebefore mapping- Defaults optional fields appropriately
packages/bot/src/utils/music/queueManipulation.ts (6)
1512-1525: Album cohesion bonus can never trigger – threshold exceeds function cap.
sharedTitleTokenScore()returnsMath.min(0.2, matches * 0.05)(line 1626), capping at 0.2. The album match condition at line 1518 checkstitleSim > 0.4, which is unreachable.Either lower the threshold to a reachable value (e.g.,
> 0.15) or increase the cap insharedTitleTokenScore.Option 1: Lower threshold
- if (titleSim > 0.4) { + if (titleSim > 0.15) { score += 0.12 reasons.push('album match') }Option 2: Increase function cap
- return Math.min(0.2, matches * 0.05) + return Math.min(0.5, matches * 0.1)Also applies to: 1616-1627
17-23: LGTM – imports align with new functionality.The additions of
getBatchAudioFeatures,getArtistPopularity, andSpotifyAudioFeaturestype are necessary for the batch enrichment and artist popularity features.
400-404: LGTM – contribution weights correctly scoped to multi-user sessions.The weights are only built when
vcMemberIds.length > 1, avoiding unnecessary computation for single-user sessions, and properly passed through toconsumeBlendedSeedSlice.Also applies to: 422-422
516-546: LGTM – artist popularity boost logic is correct.The boost is correctly applied only for
discover/popularmodes, limited to top 3 candidates, and the thresholds (≥70 for popular, ≤40 for discover) align with PR objectives. Re-sorting after adjustment ensures correct ordering.
1143-1189: LGTM – batch audio feature enrichment is well-structured.The function correctly:
- Early-returns when preconditions aren't met
- Extracts Spotify IDs only from valid Spotify URLs
- Applies tiered scoring based on energy/valence deltas
- Returns sorted results
1382-1407: LGTM – contribution weight calculation is sound.The algorithm ensures:
- Minimum weight of 1 for members with no contributions
- Proper normalization via scale factor
- Equal weights when all members have equal contributions
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LucasSantana-Dev
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April 13, 2026 03:57
Addressed — all tests passing, coverage fixed
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…esion (phases B/D/E) (#579) * feat(bot): spotify audio batch features, artist popularity, album cohesion scoring phase b — audio feature batch matching: - getBatchAudioFeatures(): fetches up to 100 track features in one Spotify API call - enrichWithAudioFeatures(): runs after selectDiverseCandidates; extracts Spotify IDs from track URLs, batch-fetches features, applies energy+valence delta scoring: energyDelta<0.15 && valenceDelta<0.20 → +0.15, partial match → +0.07, mismatch >0.6 → -0.10 phase d — artist popularity weighting: - getArtistPopularity(): searches Spotify, returns 0-100 popularity with module-level cache - top 3 candidates enriched post-selection when mode=popular or discover: popular mode + popularity≥70 → +0.12; discover mode + popularity≤40 → +0.12 phase e — album cohesion: - in calculateRecommendationScore: same-artist candidates with title token similarity >0.4 get +0.12 album match boost (same album/era without needing album metadata field) 18 new tests in spotifyApi.spec.ts covering all new functions and error paths * feat(bot): vc contribution weighting for multi-user taste blend - buildVcContributionWeights(): counts manual tracks requested per vc member, normalises so total weight = member count, baseline 1 for zero-contribution members - consumeBlendedSeedSlice(): accepts optional weights map and allocates proportional seed slices (min 1 per user), falls back to equal distribution when no weights - heavy listener in a 3-person vc now gets proportionally more seed slots than someone who joined but hasn't requested anything yet - 4 new tests: equal weights, heavy listener, zero-contrib baseline, weighted blend * fix: restore Spotify batch audio features lost during rebase * fix: wrap getValidAccessToken in Promise.resolve before .catch() resetMocks:true resets mock implementations to bare jest.fn() returning undefined. Calling .catch() on undefined throws TypeError. Wrapping in Promise.resolve() makes the chain safe regardless of return type. * fix: restore spotifyApi.spec.ts corrupted by rebase conflict marker The file had an orphaned '=======' merge marker at the start and was truncated at 200 lines. Replaced with a complete spec that preserves all original getAudioFeatures/searchSpotifyTrack tests and adds the new getBatchAudioFeatures/getArtistPopularity tests (24 total). * test: add coverage for enrichWithAudioFeatures and artist popularity boost - enrichWithAudioFeatures: test with Spotify candidate URLs so batch feature scoring path (lines 1153-1188) is exercised - popular mode artist popularity: covers discover/popular token fetch and getArtistPopularity call (lines 522-544)
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## Summary Add test coverage for existing batch audio-features and artist popularity cache optimizations: - Verify getBatchAudioFeatures() batches multiple track IDs into one API call (not N separate calls) - Verify getArtistPopularity() cache hit/miss behavior avoids duplicate Spotify API fetches Both features were implemented in commit #579 but lacked explicit test verification. ## Test results - spotifyApi.spec.ts: all 26 tests pass (including 2 new) - New test: "batches multiple track IDs into one fetch call" ✓ - New test: "cache hit/miss behavior avoids duplicate fetches" ✓ - No regressions in existing test suites @cubic-dev-ai Closes #1091 <!-- This is an auto-generated description by cubic. --> --- ## Summary by cubic Adds tests to lock in batching and caching optimizations: `getBatchAudioFeatures` makes one Spotify request for multiple track IDs, and `getArtistPopularity` returns from cache on repeat calls. Adds test-only `_resetPopularityCache` for isolation and removes unused `_resetGenresCache`. Closes #1091. <sup>Written for commit 9cc11b2. Summary will update on new commits.</sup> <a href="https://cubic.dev/pr/LucasSantana-Dev/Lucky/pull/1375?utm_source=github" target="_blank" rel="noopener noreferrer" data-no-image-dialog="true"><picture><source media="(prefers-color-scheme: dark)" srcset="https://www.cubic.dev/buttons/review-in-cubic-dark.svg"><source media="(prefers-color-scheme: light)" srcset="https://www.cubic.dev/buttons/review-in-cubic-light.svg"><img alt="Review in cubic" src="https://www.cubic.dev/buttons/review-in-cubic-dark.svg"></picture></a> <!-- End of auto-generated description by cubic. -->
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Depends on #577, #578
Builds on the smart signals + decay/mood PRs. The full chain: #577 → #578 → this PR.
Phase B — Spotify Audio Feature Batch Matching
After candidate selection, fetch energy/valence/danceability for all candidates that have Spotify URLs — one API call for up to 100 tracks.
Scoring adjustments vs current track's audio profile:
Only runs when user has a linked Spotify account. Gracefully skips if no token.
Phase D — Artist Popularity Weighting
After candidate selection, fetch Spotify popularity (0–100) for the top 3 candidates. Module-level cache — popularity is stable, no need to re-fetch.
popularmode + artist popularity ≥ 70discovermode + artist popularity ≤ 40Only fires for
popularanddiscovermodes, notsimilar.Phase E — Album Cohesion
In
calculateRecommendationScore, same-artist candidates with title token similarity > 0.4 get +0.12 "album match" boost. Picks up tracks from the same album or era without needing an explicit album metadata field.Tests
18 new tests in
spotifyApi.spec.tscoveringgetBatchAudioFeaturesandgetArtistPopularityincluding empty input, partial results, caching, and all error paths.Summary by CodeRabbit
New Features
Tests