Fix missing DB tables: container, version_info, db_info, genre_map, extra DBs

- Add container table with Master (iPod) and Music containers
- Add version_info, db_info, genre_map, location_kind_map, category_map
- Create Dynamic.itdb, Extras.itdb, Genius.itdb with minimal schemas
- Insert default container entries with correct PIDs
- Nano 7G firmware requires all these for music display

src/ipod_nano7_db.py

@@ -32,6 +32,38 @@ logger = logging.getLogger(__name__)
 MASTER_CONTAINER_PID = 203092939621887772  # "iPod" master playlist
 
 LIBRARY_SCHEMA_SQL = """
+CREATE TABLE IF NOT EXISTS version_info (
+    major INTEGER, minor INTEGER, device_update_level INTEGER,
+    platform INTEGER
+);
+
+CREATE TABLE IF NOT EXISTS db_info (
+    primary_container_pid INTEGER
+);
+
+CREATE TABLE IF NOT EXISTS container (
+    pid INTEGER PRIMARY KEY, distinguished_kind INTEGER,
+    is_hidden INTEGER, is_master INTEGER, media_kind INTEGER,
+    name TEXT, parent_pid INTEGER
+);
+
+CREATE TABLE IF NOT EXISTS genre_map (
+    pid INTEGER PRIMARY KEY, name TEXT, name_order INTEGER,
+    has_songs INTEGER, has_music_videos INTEGER, item_count INTEGER,
+    computed_has_songs INTEGER, computed_has_music_videos INTEGER,
+    computed_item_count INTEGER
+);
+
+CREATE TABLE IF NOT EXISTS location_kind_map (
+    pid INTEGER PRIMARY KEY, name TEXT
+);
+
+CREATE TABLE IF NOT EXISTS category_map (
+    pid INTEGER PRIMARY KEY, name TEXT,
+    is_protected INTEGER, is_subscribed INTEGER,
+    feed_url TEXT, user_pid INTEGER
+);
+
 CREATE TABLE IF NOT EXISTS item (
     pid INTEGER PRIMARY KEY, media_kind INTEGER, is_song INTEGER,
     date_modified INTEGER, year INTEGER, is_compilation INTEGER,
@@ -89,6 +121,36 @@ CREATE TABLE IF NOT EXISTS track_size_calc (
 );
 
 INSERT OR IGNORE INTO track_size_calc (kind, size) VALUES ('audio', 0);
+INSERT OR IGNORE INTO version_info (major, minor, device_update_level, platform) VALUES (1, 111, 1104, 2);
+INSERT OR IGNORE INTO db_info (primary_container_pid) VALUES (203092939621887772);
+INSERT OR IGNORE INTO location_kind_map (pid, name) VALUES (1, 'MPEG audio file');
+INSERT OR IGNORE INTO location_kind_map (pid, name) VALUES (2, 'Purchased AAC audio file');
+INSERT OR IGNORE INTO location_kind_map (pid, name) VALUES (3, 'AAC audio file');
+INSERT OR IGNORE INTO container (pid, distinguished_kind, is_hidden, is_master, media_kind, name, parent_pid)
+    VALUES (203092939621887772, 0, 1, 1, 1, 'iPod', NULL);
+INSERT OR IGNORE INTO container (pid, distinguished_kind, is_hidden, is_master, media_kind, name, parent_pid)
+    VALUES (4872745547565090077, 4, 1, 0, 1, 'Music', NULL);
+"""
+
+DYNAMIC_SCHEMA_SQL = """
+CREATE TABLE IF NOT EXISTS item (
+    item_pid INTEGER PRIMARY KEY, play_count INTEGER,
+    last_played_date INTEGER, skip_count INTEGER,
+    rating INTEGER, bookmark INTEGER
+);
+"""
+
+EXTRAS_SCHEMA_SQL = """
+CREATE TABLE IF NOT EXISTS item (
+    item_pid INTEGER PRIMARY KEY, lyrics TEXT,
+    chapter_data BLOB, description TEXT
+);
+"""
+
+GENIUS_SCHEMA_SQL = """
+CREATE TABLE IF NOT EXISTS item (
+    item_pid INTEGER PRIMARY KEY
+);
 """
 
 LOCATIONS_SCHEMA_SQL = """
@@ -135,21 +197,26 @@ class Nano7Database:
         self._ensure_schema()
 
     def _ensure_schema(self) -> None:
-        """Create required tables in Library.itdb and Locations.itdb if missing."""
+        """Create required tables in all SQLite databases on the iPod."""
-        sqlite_path = self.sqlite_path
+        itlp_dir = os.path.join(self.itunes_dir, "iTunes Library.itlp")
-        locations_path = self.locations_path
+        os.makedirs(itlp_dir, exist_ok=True)
+        os.makedirs(os.path.dirname(self.locations_path), exist_ok=True)
 
-        for db_path, schema in [(sqlite_path, LIBRARY_SCHEMA_SQL),
+        dbs = [
-                                 (locations_path, LOCATIONS_SCHEMA_SQL)]:
+            (self.sqlite_path, LIBRARY_SCHEMA_SQL),
+            (self.locations_path, LOCATIONS_SCHEMA_SQL),
+            (os.path.join(itlp_dir, "Dynamic.itdb"), DYNAMIC_SCHEMA_SQL),
+            (os.path.join(itlp_dir, "Extras.itdb"), EXTRAS_SCHEMA_SQL),
+            (os.path.join(itlp_dir, "Genius.itdb"), GENIUS_SCHEMA_SQL),
+        ]
+        for db_path, schema in dbs:
             try:
-                os.makedirs(os.path.dirname(db_path), exist_ok=True)
                 conn = sqlite3.connect(db_path)
                 conn.executescript(schema)
                 conn.commit()
                 conn.close()
-                logger.info(f"Schema ensured in {os.path.basename(db_path)}")
             except Exception as e:
-                logger.warning(f"Failed to ensure schema in {db_path}: {e}")
+                logger.warning(f"Failed to ensure schema in {os.path.basename(db_path)}: {e}")
 
     def _detect_firewire_id(self) -> bytes:
         """Parse FirewireGuid from SysInfo file on the iPod."""