refactor: split recommendation engine into subpackage

2026-06-16 00:45:57 +02:00
parent 1e4a5612e8
commit 4f73b0ca97
9 changed files with 842 additions and 820 deletions
--- a/internal/anime/recommendations/constants.go
+++ b/internal/anime/recommendations/constants.go
@@ -0,0 +1,27 @@
+package recommendations
+
+import "time"
+
+const (
+	maxSeeds               = 8
+	maxRecommendations     = 10
+	candidateFetchLimit    = 60
+	TopPickLimit           = 18
+	TopPicksLimit          = 60
+	profileSearchLimit     = 8
+	profileGenreSearches   = 2
+	profileThemeSearches   = 2
+	collaborativeWeight    = 1.4
+	profileSearchWeight    = 0.8
+	seedRecencyWindow      = 180 * 24 * time.Hour
+	freshReleaseWindow     = 540 * 24 * time.Hour
+	genreMatchWeight       = 1.8
+	themeMatchWeight       = 1.0
+	studioMatchWeight      = 0.7
+	demographicMatchWeight = 0.9
+	recentDiversityWindow  = 3
+	genreDiversityPenalty  = 1.7
+	themeDiversityPenalty  = 1.2
+	demoDiversityPenalty   = 1.0
+	studioDiversityPenalty = 0.7
+)