update

db/migrations/20250701010103_add_library_stats.go

@@ -0,0 +1,48 @@
+package migrations
+
+import (
+	"context"
+	"database/sql"
+
+	"github.com/pressly/goose/v3"
+)
+
+func init() {
+	goose.AddMigrationContext(upAddLibraryStats, downAddLibraryStats)
+}
+
+func upAddLibraryStats(ctx context.Context, tx *sql.Tx) error {
+	_, err := tx.ExecContext(ctx, `
+alter table library add column total_songs integer default 0 not null;
+alter table library add column total_albums integer default 0 not null;
+alter table library add column total_artists integer default 0 not null;
+alter table library add column total_folders integer default 0 not null;
+    alter table library add column total_files integer default 0 not null;
+    alter table library add column total_missing_files integer default 0 not null;
+    alter table library add column total_size integer default 0 not null;
+update library set
+    total_songs = (
+        select count(*) from media_file where library_id = library.id and missing = 0
+    ),
+    total_albums = (select count(*) from album where library_id = library.id and missing = 0),
+    total_artists = (
+        select count(*) from library_artist la 
+        join artist a on la.artist_id = a.id 
+        where la.library_id = library.id and a.missing = 0
+    ),
+    total_folders = (select count(*) from folder where library_id = library.id and missing = 0 and num_audio_files > 0),
+    total_files = (
+        select ifnull(sum(num_audio_files + num_playlists + json_array_length(image_files)),0)
+        from folder where library_id = library.id and missing = 0
+    ),
+    total_missing_files = (
+        select count(*) from media_file where library_id = library.id and missing = 1
+    ),
+    total_size = (select ifnull(sum(size),0) from album where library_id = library.id and missing = 0);
+`)
+	return err
+}
+
+func downAddLibraryStats(ctx context.Context, tx *sql.Tx) error {
+	return nil
+}