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12 changes: 12 additions & 0 deletions PROGRESS.md
Original file line number Diff line number Diff line change
Expand Up @@ -1161,3 +1161,15 @@ chat (frontend) → api (backend) → Supabase (database)
- mono: Added `open-agents` entry to AGENTS.md submodule table (External, reference app for background coding agents on Vercel)
**PRs:** pending (branch: feat/add-open-agents-submodule)
**Notes:** Submodule pinned to current `open-agents` main HEAD.

---

## [2026-06-03] Add research metrics cache refresh layer
**Prompt:** Implement and commit the abstraction-level fix for slow SongStats metrics.
**Status:** completed
**Changes:**
- api: Added metrics cache reads, cold-miss `202 refresh_pending`, stale-while-revalidate behavior, Supabase cache helpers, and a Vercel Workflow refresh step.
- database: Added `research_cache_entries` migration for provider-scoped cached research payloads and refresh metadata.
- docs: Documented the provider-neutral metrics `202 refresh_pending` response.
**PRs:** api: https://github.com/recoupable/api/pull/635; docs: https://github.com/recoupable/docs/pull/232; database: https://github.com/recoupable/database/pull/29
**Notes:** Root commit pins api/docs/database submodules to the pushed feature-branch commits; API tests/lint/build and docs validation passed in the submodules.
2 changes: 1 addition & 1 deletion api
Submodule api updated 77 files
+8 −0 .env.example
+2 −2 app/api/research/albums/route.ts
+2 −0 app/api/research/metrics/route.ts
+1 −1 app/api/research/track/playlists/route.ts
+2 −2 app/api/research/track/route.ts
+83 −0 app/workflows/__tests__/refreshResearchCacheStep.test.ts
+61 −0 app/workflows/refreshResearchCacheStep.ts
+10 −0 app/workflows/refreshResearchCacheWorkflow.ts
+1 −5 lib/chartmetric/fetchChartmetric.ts
+1 −1 lib/research/__tests__/getResearchAlbumsHandler.test.ts
+7 −7 lib/research/__tests__/getResearchChartsHandler.test.ts
+7 −7 lib/research/__tests__/getResearchDiscoverHandler.test.ts
+187 −0 lib/research/__tests__/getResearchMetricsCacheHandler.test.ts
+4 −0 lib/research/__tests__/getResearchMetricsHandler.test.ts
+14 −2 lib/research/__tests__/getResearchSearchHandler.test.ts
+10 −10 lib/research/__tests__/getResearchSimilarHandler.test.ts
+1 −1 lib/research/__tests__/getResearchTrackHandler.test.ts
+1 −1 lib/research/__tests__/getResearchTrackPlaylistsHandler.test.ts
+31 −15 lib/research/__tests__/handleArtistResearch.test.ts
+8 −8 lib/research/__tests__/handleResearch.test.ts
+23 −12 lib/research/__tests__/resolveArtist.test.ts
+18 −1 lib/research/__tests__/resolveTrack.test.ts
+26 −1 lib/research/__tests__/validateArtistRequest.test.ts
+15 −3 lib/research/__tests__/validateGetResearchAlbumsRequest.test.ts
+1 −1 lib/research/__tests__/validateGetResearchCuratorRequest.test.ts
+32 −0 lib/research/__tests__/validateGetResearchLookupRequest.test.ts
+8 −1 lib/research/__tests__/validateGetResearchMetricsRequest.test.ts
+11 −3 lib/research/__tests__/validateGetResearchTrackRequest.test.ts
+12 −0 lib/research/cache/ResearchCacheRefreshInput.ts
+27 −0 lib/research/cache/buildResearchCacheKey.ts
+132 −0 lib/research/cache/getResearchMetricsWithCache.ts
+32 −0 lib/research/cache/kickRefreshResearchCacheWorkflow.ts
+2 −0 lib/research/cache/researchCacheConfig.ts
+1 −1 lib/research/ensureResearchCredits.ts
+2 −8 lib/research/getResearchAlbumsHandler.ts
+3 −2 lib/research/getResearchCuratorHandler.ts
+1 −1 lib/research/getResearchFestivalsHandler.ts
+2 −2 lib/research/getResearchInstagramPostsHandler.ts
+2 −2 lib/research/getResearchLookupHandler.ts
+14 −6 lib/research/getResearchMetricsHandler.ts
+1 −1 lib/research/getResearchMilestonesHandler.ts
+1 −4 lib/research/getResearchPlaylistHandler.ts
+1 −1 lib/research/getResearchProfileHandler.ts
+1 −1 lib/research/getResearchRankHandler.ts
+4 −2 lib/research/getResearchSearchHandler.ts
+3 −4 lib/research/getResearchTrackHandler.ts
+1 −1 lib/research/getResearchTrackPlaylistsHandler.ts
+9 −8 lib/research/handleArtistResearch.ts
+5 −5 lib/research/handleResearch.ts
+1 −0 lib/research/providerId.ts
+4 −0 lib/research/providers/ProxyResult.ts
+1 −0 lib/research/providers/ResearchProvider.ts
+47 −0 lib/research/providers/__tests__/fetchResearchProvider.test.ts
+29 −0 lib/research/providers/__tests__/getResearchProvider.test.ts
+15 −0 lib/research/providers/fetchResearchProvider.ts
+7 −0 lib/research/providers/getResearchProvider.ts
+19 −11 lib/research/resolveArtist.ts
+22 −10 lib/research/resolveTrack.ts
+156 −0 lib/research/songstats/__tests__/fetchSongstatsResearch.test.ts
+55 −0 lib/research/songstats/fetchSongstatsResearch.ts
+161 −0 lib/research/songstats/mapSongstatsArtistPath.ts
+51 −0 lib/research/songstats/mapSongstatsTrackPath.ts
+134 −0 lib/research/songstats/songstatsResearchMapping.ts
+17 −5 lib/research/validateArtistRequest.ts
+6 −7 lib/research/validateGetResearchAlbumsRequest.ts
+1 −1 lib/research/validateGetResearchChartsRequest.ts
+2 −2 lib/research/validateGetResearchCuratorRequest.ts
+16 −3 lib/research/validateGetResearchLookupRequest.ts
+2 −0 lib/research/validateGetResearchMetricsRequest.ts
+2 −3 lib/research/validateGetResearchSearchRequest.ts
+5 −5 lib/research/validateGetResearchTrackRequest.ts
+158 −0 lib/songstats/__tests__/fetchSongstats.test.ts
+94 −0 lib/songstats/fetchSongstats.ts
+2 −0 lib/songstats/songstatsBase.ts
+19 −0 lib/supabase/research_cache_entries/selectResearchCacheEntry.ts
+19 −0 lib/supabase/research_cache_entries/upsertResearchCacheEntry.ts
+63 −0 types/database.types.ts
2 changes: 1 addition & 1 deletion database
2 changes: 1 addition & 1 deletion docs