bvandeusen
277898a49a
Add per-user artist-suggestion service ranking out-of-library MBIDs by signal x similarity. Single-CTE SQL collects user likes (5x weight) and recency-decayed plays, joins against artist_similarity_unmatched, and filters in-library candidates plus non-terminal lidarr_requests. The service resolves top-3 attribution seeds to artist names in a batched GetArtistsByIDs call so the UI can render "because you liked X" reasons. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
45 lines
1.4 KiB
SQL
45 lines
1.4 KiB
SQL
-- name: UpsertArtist :one
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-- Insert or update by mbid when present; otherwise by (name, sort_name).
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-- Callers pass the canonical sort_name; scanner is responsible for derivation.
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INSERT INTO artists (name, sort_name, mbid)
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VALUES ($1, $2, $3)
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ON CONFLICT (mbid) WHERE mbid IS NOT NULL
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DO UPDATE SET
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name = EXCLUDED.name,
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sort_name = EXCLUDED.sort_name,
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updated_at = now()
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RETURNING *;
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-- name: GetArtistByID :one
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SELECT * FROM artists WHERE id = $1;
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-- name: GetArtistByName :one
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SELECT * FROM artists WHERE name = $1 LIMIT 1;
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-- name: ListArtists :many
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SELECT * FROM artists ORDER BY sort_name;
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-- name: SearchArtists :many
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SELECT * FROM artists
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WHERE name ILIKE '%' || $1 || '%'
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ORDER BY sort_name
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LIMIT $2 OFFSET $3;
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-- name: ListArtistsAlpha :many
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SELECT * FROM artists ORDER BY sort_name, name, id LIMIT $1 OFFSET $2;
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-- name: ListArtistsNewest :many
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-- Secondary id tiebreaker keeps pagination stable when created_at ties.
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SELECT * FROM artists ORDER BY created_at DESC, id DESC LIMIT $1 OFFSET $2;
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-- name: CountArtists :one
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SELECT COUNT(*) FROM artists;
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-- name: CountArtistsMatching :one
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SELECT COUNT(*) FROM artists WHERE name ILIKE '%' || $1::text || '%';
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-- name: GetArtistsByIDs :many
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-- Batched lookup used by M5c suggestion attribution to resolve top-3
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-- contributing seed UUIDs back to artist names in one round-trip.
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SELECT * FROM artists WHERE id = ANY($1::uuid[]);
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