575 lines
22 KiB
Python
575 lines
22 KiB
Python
"""
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local_db.py — Lokal SQLite database til offline brug.
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Håndterer:
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- Musikbiblioteker (stier der overvåges)
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- Sange høstet fra filsystemet
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- Lokale afspilningslister (offline-projekter)
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- Synkroniseringsstatus mod API
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"""
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import sqlite3
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import threading
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from contextlib import contextmanager
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from datetime import datetime, timezone
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from pathlib import Path
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DB_PATH = Path.home() / ".linedance" / "local.db"
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_local = threading.local()
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def _get_conn() -> sqlite3.Connection:
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"""Returnerer en thread-lokal forbindelse."""
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if not hasattr(_local, "conn") or _local.conn is None:
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DB_PATH.parent.mkdir(parents=True, exist_ok=True)
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conn = sqlite3.connect(DB_PATH, check_same_thread=False)
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conn.row_factory = sqlite3.Row
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conn.execute("PRAGMA journal_mode=WAL") # bedre concurrent adgang
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conn.execute("PRAGMA foreign_keys=ON")
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_local.conn = conn
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return _local.conn
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@contextmanager
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def get_db():
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conn = _get_conn()
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try:
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yield conn
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conn.commit()
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except Exception:
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conn.rollback()
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raise
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def init_db():
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"""Opret alle tabeller hvis de ikke findes."""
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conn = _get_conn()
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# Brug executescript direkte (ikke via context manager) da det auto-committer
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conn.executescript("""
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CREATE TABLE IF NOT EXISTS libraries (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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path TEXT NOT NULL UNIQUE,
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is_active INTEGER NOT NULL DEFAULT 1,
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last_full_scan TEXT,
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created_at TEXT NOT NULL DEFAULT (datetime('now'))
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);
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CREATE TABLE IF NOT EXISTS songs (
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id TEXT PRIMARY KEY,
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library_id INTEGER REFERENCES libraries(id),
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local_path TEXT NOT NULL UNIQUE,
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title TEXT NOT NULL DEFAULT '',
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artist TEXT NOT NULL DEFAULT '',
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album TEXT NOT NULL DEFAULT '',
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bpm INTEGER NOT NULL DEFAULT 0,
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duration_sec INTEGER NOT NULL DEFAULT 0,
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file_format TEXT NOT NULL DEFAULT '',
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file_modified_at TEXT NOT NULL,
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file_missing INTEGER NOT NULL DEFAULT 0,
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extra_tags TEXT NOT NULL DEFAULT '{}',
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api_song_id TEXT,
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last_synced_at TEXT,
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created_at TEXT NOT NULL DEFAULT (datetime('now'))
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);
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CREATE TABLE IF NOT EXISTS dance_levels (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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sort_order INTEGER NOT NULL,
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name TEXT NOT NULL UNIQUE,
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description TEXT NOT NULL DEFAULT '',
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synced_at TEXT
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);
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CREATE TABLE IF NOT EXISTS song_dances (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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song_id TEXT NOT NULL REFERENCES songs(id) ON DELETE CASCADE,
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dance_name TEXT NOT NULL,
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dance_order INTEGER NOT NULL DEFAULT 1,
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level_id INTEGER REFERENCES dance_levels(id)
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);
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CREATE TABLE IF NOT EXISTS dance_alternatives (
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id TEXT PRIMARY KEY,
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song_dance_id INTEGER NOT NULL REFERENCES song_dances(id) ON DELETE CASCADE,
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alt_dance_name TEXT NOT NULL DEFAULT '',
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level_id INTEGER REFERENCES dance_levels(id),
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note TEXT NOT NULL DEFAULT '',
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source TEXT NOT NULL DEFAULT 'local',
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created_by TEXT NOT NULL DEFAULT '',
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created_at TEXT NOT NULL DEFAULT (datetime('now'))
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);
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CREATE TABLE IF NOT EXISTS dance_names (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL UNIQUE COLLATE NOCASE,
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source TEXT NOT NULL DEFAULT 'local',
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use_count INTEGER NOT NULL DEFAULT 1,
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synced_at TEXT
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);
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CREATE TABLE IF NOT EXISTS playlists (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL,
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description TEXT NOT NULL DEFAULT '',
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api_project_id TEXT,
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last_synced_at TEXT,
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created_at TEXT NOT NULL DEFAULT (datetime('now'))
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);
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CREATE TABLE IF NOT EXISTS playlist_songs (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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playlist_id INTEGER NOT NULL REFERENCES playlists(id) ON DELETE CASCADE,
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song_id TEXT NOT NULL REFERENCES songs(id),
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position INTEGER NOT NULL,
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status TEXT NOT NULL DEFAULT 'pending',
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UNIQUE(playlist_id, position)
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);
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CREATE TABLE IF NOT EXISTS sync_queue (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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entity_type TEXT NOT NULL,
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entity_id TEXT NOT NULL,
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action TEXT NOT NULL,
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payload TEXT NOT NULL,
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created_at TEXT NOT NULL DEFAULT (datetime('now'))
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);
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CREATE TABLE IF NOT EXISTS event_state (
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key TEXT PRIMARY KEY,
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value TEXT NOT NULL
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);
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CREATE INDEX IF NOT EXISTS idx_songs_title ON songs(title);
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CREATE INDEX IF NOT EXISTS idx_songs_artist ON songs(artist);
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CREATE INDEX IF NOT EXISTS idx_songs_missing ON songs(file_missing);
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CREATE INDEX IF NOT EXISTS idx_songs_library ON songs(library_id);
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CREATE INDEX IF NOT EXISTS idx_song_dances ON song_dances(song_id);
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""")
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# Kør migrations for ældre databaser (each separately)
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migrations = [
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"ALTER TABLE songs ADD COLUMN extra_tags TEXT NOT NULL DEFAULT '{}'",
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"ALTER TABLE song_dances ADD COLUMN level_id INTEGER REFERENCES dance_levels(id)",
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"ALTER TABLE dance_alternatives ADD COLUMN alt_dance_name TEXT NOT NULL DEFAULT ''",
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"ALTER TABLE dance_alternatives ADD COLUMN level_id INTEGER REFERENCES dance_levels(id)",
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"ALTER TABLE dance_alternatives ADD COLUMN source TEXT NOT NULL DEFAULT 'local'",
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"ALTER TABLE dance_alternatives ADD COLUMN created_by TEXT NOT NULL DEFAULT ''",
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]
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for sql in migrations:
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try:
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conn.execute(sql)
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conn.commit()
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except Exception:
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pass
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# Seed standard-niveauer — KUN hvis tabellen er tom
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count = conn.execute("SELECT COUNT(*) FROM dance_levels").fetchone()[0]
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if count == 0:
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defaults = [
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(1, "Begynder", "Passer til alle"),
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(2, "Let øvet", "Lidt erfaring kræves"),
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(3, "Øvet", "Kræver regelmæssig træning"),
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(4, "Erfaren", "For dedikerede dansere"),
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(5, "Ekspert", "Konkurrenceniveau"),
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]
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conn.executemany(
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"INSERT OR IGNORE INTO dance_levels (sort_order, name, description) VALUES (?,?,?)",
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defaults
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)
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conn.commit()
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print(f"Dans-niveauer seedet: {len(defaults)} niveauer")
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else:
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print(f"Dans-niveauer: {count} niveauer i databasen")
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# ── Biblioteker ───────────────────────────────────────────────────────────────
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def add_library(path: str) -> int:
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with get_db() as conn:
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cur = conn.execute(
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"INSERT OR IGNORE INTO libraries (path) VALUES (?)", (path,)
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)
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if cur.lastrowid:
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return cur.lastrowid
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row = conn.execute("SELECT id FROM libraries WHERE path=?", (path,)).fetchone()
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return row["id"]
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def get_libraries(active_only: bool = True) -> list[sqlite3.Row]:
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with get_db() as conn:
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if active_only:
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return conn.execute(
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"SELECT * FROM libraries WHERE is_active=1 ORDER BY path"
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).fetchall()
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return conn.execute("SELECT * FROM libraries ORDER BY path").fetchall()
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def remove_library(library_id: int):
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with get_db() as conn:
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# Marker sange som manglende
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conn.execute(
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"UPDATE songs SET file_missing=1 WHERE library_id=?", (library_id,)
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)
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# Slet biblioteket helt
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conn.execute("DELETE FROM libraries WHERE id=?", (library_id,))
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def update_library_scan_time(library_id: int):
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now = datetime.now(timezone.utc).isoformat()
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with get_db() as conn:
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conn.execute(
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"UPDATE libraries SET last_full_scan=? WHERE id=?", (now, library_id)
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)
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# ── Sange ─────────────────────────────────────────────────────────────────────
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def upsert_song(song_data: dict) -> str:
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"""
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Indsæt eller opdater en sang baseret på local_path.
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Returnerer song_id.
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"""
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import uuid, json
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with get_db() as conn:
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existing = conn.execute(
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"SELECT id FROM songs WHERE local_path=?", (song_data["local_path"],)
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).fetchone()
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extra_tags_json = json.dumps(song_data.get("extra_tags", {}), ensure_ascii=False)
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if existing:
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song_id = existing["id"]
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conn.execute("""
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UPDATE songs SET
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library_id=?, title=?, artist=?, album=?, bpm=?, duration_sec=?,
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file_format=?, file_modified_at=?, file_missing=0, extra_tags=?
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WHERE id=?
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""", (
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song_data.get("library_id"),
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song_data.get("title", ""),
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song_data.get("artist", ""),
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song_data.get("album", ""),
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song_data.get("bpm", 0),
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song_data.get("duration_sec", 0),
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song_data.get("file_format", ""),
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song_data.get("file_modified_at", ""),
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extra_tags_json,
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song_id,
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))
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else:
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song_id = str(uuid.uuid4())
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conn.execute("""
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INSERT INTO songs
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(id, library_id, local_path, title, artist, album,
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bpm, duration_sec, file_format, file_modified_at, extra_tags)
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VALUES (?,?,?,?,?,?,?,?,?,?,?)
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""", (
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song_id,
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song_data.get("library_id"),
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song_data["local_path"],
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song_data.get("title", ""),
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song_data.get("artist", ""),
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song_data.get("album", ""),
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song_data.get("bpm", 0),
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song_data.get("duration_sec", 0),
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song_data.get("file_format", ""),
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song_data.get("file_modified_at", ""),
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extra_tags_json,
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))
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# Opdater danse hvis de er med i data
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if "dances" in song_data:
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conn.execute("DELETE FROM song_dances WHERE song_id=?", (song_id,))
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for i, dance in enumerate(song_data["dances"], start=1):
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# dance kan være str eller dict med {name, level_id}
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if isinstance(dance, dict):
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name = dance.get("name", "")
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level_id = dance.get("level_id")
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else:
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name = dance
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level_id = None
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conn.execute(
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"INSERT INTO song_dances (song_id, dance_name, dance_order, level_id) VALUES (?,?,?,?)",
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(song_id, name, i, level_id),
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)
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# Registrer navne i ordbogen
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try:
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from local.local_db import register_dance_name as _reg
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for dance in song_data["dances"]:
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nm = dance.get("name", dance) if isinstance(dance, dict) else dance
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if nm:
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_reg(nm)
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except Exception:
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pass
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return song_id
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def mark_song_missing(local_path: str):
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with get_db() as conn:
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conn.execute(
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"UPDATE songs SET file_missing=1 WHERE local_path=?", (local_path,)
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)
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def get_song_by_path(local_path: str) -> sqlite3.Row | None:
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with get_db() as conn:
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return conn.execute(
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"SELECT * FROM songs WHERE local_path=?", (local_path,)
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).fetchone()
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def search_songs(query: str, limit: int = 50) -> list[sqlite3.Row]:
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"""Søg i alle tags — titel, artist, album, danse og alle øvrige tags."""
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pattern = f"%{query}%"
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with get_db() as conn:
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return conn.execute("""
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SELECT DISTINCT s.* FROM songs s
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LEFT JOIN song_dances sd ON sd.song_id = s.id
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WHERE s.file_missing = 0
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AND (
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s.title LIKE ? OR
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s.artist LIKE ? OR
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s.album LIKE ? OR
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sd.dance_name LIKE ? OR
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s.extra_tags LIKE ?
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)
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ORDER BY s.artist, s.title
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LIMIT ?
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""", (pattern, pattern, pattern, pattern, pattern, limit)).fetchall()
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def get_songs_for_library(library_id: int) -> list[sqlite3.Row]:
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with get_db() as conn:
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return conn.execute(
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"SELECT * FROM songs WHERE library_id=? ORDER BY artist, title",
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(library_id,)
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).fetchall()
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def get_all_song_paths_for_library(library_id: int) -> dict[str, str]:
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"""Returnerer {local_path: file_modified_at} — bruges til fuld scan."""
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with get_db() as conn:
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rows = conn.execute(
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"SELECT local_path, file_modified_at FROM songs WHERE library_id=?",
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(library_id,)
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).fetchall()
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return {row["local_path"]: row["file_modified_at"] for row in rows}
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# ── Afspilningslister ─────────────────────────────────────────────────────────
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def create_playlist(name: str, description: str = "") -> int:
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with get_db() as conn:
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cur = conn.execute(
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"INSERT INTO playlists (name, description) VALUES (?,?)",
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(name, description)
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)
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return cur.lastrowid
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def get_playlists() -> list[sqlite3.Row]:
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with get_db() as conn:
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return conn.execute(
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"SELECT * FROM playlists ORDER BY created_at DESC"
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).fetchall()
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def add_song_to_playlist(playlist_id: int, song_id: str, position: int | None = None) -> int:
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with get_db() as conn:
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if position is None:
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row = conn.execute(
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"SELECT MAX(position) as max_pos FROM playlist_songs WHERE playlist_id=?",
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(playlist_id,)
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).fetchone()
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position = (row["max_pos"] or 0) + 1
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cur = conn.execute(
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"INSERT INTO playlist_songs (playlist_id, song_id, position) VALUES (?,?,?)",
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(playlist_id, song_id, position)
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)
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return cur.lastrowid
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def update_playlist_song_status(playlist_song_id: int, status: str):
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valid = {"pending", "playing", "played", "skipped"}
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if status not in valid:
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raise ValueError(f"Ugyldig status: {status}")
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with get_db() as conn:
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conn.execute(
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"UPDATE playlist_songs SET status=? WHERE id=?",
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(status, playlist_song_id)
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)
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def get_playlist_with_songs(playlist_id: int) -> dict:
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with get_db() as conn:
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playlist = conn.execute(
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"SELECT * FROM playlists WHERE id=?", (playlist_id,)
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).fetchone()
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if not playlist:
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return {}
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songs = conn.execute("""
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SELECT ps.id as ps_id, ps.position, ps.status,
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s.*, GROUP_CONCAT(sd.dance_name ORDER BY sd.dance_order) as dances
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FROM playlist_songs ps
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JOIN songs s ON s.id = ps.song_id
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LEFT JOIN song_dances sd ON sd.song_id = s.id
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WHERE ps.playlist_id = ?
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GROUP BY ps.id
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ORDER BY ps.position
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""", (playlist_id,)).fetchall()
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return {"playlist": dict(playlist), "songs": [dict(s) for s in songs]}
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# ── Event-state (gemmes løbende så man kan genstarte efter strømsvigt) ────────
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def save_event_state(current_idx: int, statuses: list[str]):
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"""Gem event-fremgang — overskrives ved hver ændring."""
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import json
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with get_db() as conn:
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conn.execute("INSERT OR REPLACE INTO event_state (key,value) VALUES ('current_idx',?)",
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(str(current_idx),))
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conn.execute("INSERT OR REPLACE INTO event_state (key,value) VALUES ('statuses',?)",
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(json.dumps(statuses),))
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def load_event_state() -> tuple[int, list[str]] | None:
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"""Indlæs gemt event-fremgang. Returnerer None hvis ingen gemt tilstand."""
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import json
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with get_db() as conn:
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idx_row = conn.execute(
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"SELECT value FROM event_state WHERE key='current_idx'"
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).fetchone()
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sta_row = conn.execute(
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"SELECT value FROM event_state WHERE key='statuses'"
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).fetchone()
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if not idx_row or not sta_row:
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return None
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return int(idx_row["value"]), json.loads(sta_row["value"])
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def clear_event_state():
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"""Nulstil gemt event-tilstand (bruges ved 'Start event')."""
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with get_db() as conn:
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conn.execute("DELETE FROM event_state")
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# ── Dans-navne ordbog ─────────────────────────────────────────────────────────
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def get_dance_name_suggestions(prefix: str, limit: int = 20) -> list[str]:
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"""Returnerer danse-navne der starter med prefix, sorteret efter popularitet."""
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with get_db() as conn:
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rows = conn.execute("""
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SELECT name FROM dance_names
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WHERE name LIKE ? COLLATE NOCASE
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ORDER BY use_count DESC, name
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LIMIT ?
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""", (f"{prefix}%", limit)).fetchall()
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return [r["name"] for r in rows]
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def register_dance_name(name: str, source: str = "local"):
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"""Tilføj eller opdater et dans-navn i ordbogen."""
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name = name.strip()
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if not name:
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return
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with get_db() as conn:
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existing = conn.execute(
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"SELECT id, use_count FROM dance_names WHERE name=? COLLATE NOCASE",
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(name,)
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).fetchone()
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if existing:
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conn.execute(
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"UPDATE dance_names SET use_count=use_count+1 WHERE id=?",
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(existing["id"],)
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)
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else:
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conn.execute(
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"INSERT INTO dance_names (name, source, use_count) VALUES (?,?,1)",
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(name, source)
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)
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def sync_dance_names_from_api(names: list[dict]):
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"""Synkroniser dans-navne fra API — {name, use_count}."""
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|
from datetime import datetime, timezone
|
|
now = datetime.now(timezone.utc).isoformat()
|
|
with get_db() as conn:
|
|
for item in names:
|
|
conn.execute("""
|
|
INSERT INTO dance_names (name, source, use_count, synced_at)
|
|
VALUES (?, 'community', ?, ?)
|
|
ON CONFLICT(name) DO UPDATE SET
|
|
use_count = MAX(use_count, excluded.use_count),
|
|
synced_at = excluded.synced_at
|
|
""", (item["name"], item.get("use_count", 1), now))
|
|
|
|
|
|
# ── Dans-niveauer ─────────────────────────────────────────────────────────────
|
|
|
|
def get_dance_levels() -> list[sqlite3.Row]:
|
|
"""Hent alle niveauer sorteret efter sort_order."""
|
|
with get_db() as conn:
|
|
return conn.execute(
|
|
"SELECT * FROM dance_levels ORDER BY sort_order"
|
|
).fetchall()
|
|
|
|
|
|
def sync_dance_levels_from_api(levels: list[dict]):
|
|
"""Synkroniser niveauer fra API — {sort_order, name, description}."""
|
|
from datetime import datetime, timezone
|
|
now = datetime.now(timezone.utc).isoformat()
|
|
with get_db() as conn:
|
|
for lvl in levels:
|
|
conn.execute("""
|
|
INSERT INTO dance_levels (sort_order, name, description, synced_at)
|
|
VALUES (?, ?, ?, ?)
|
|
ON CONFLICT(name) DO UPDATE SET
|
|
sort_order = excluded.sort_order,
|
|
description = excluded.description,
|
|
synced_at = excluded.synced_at
|
|
""", (lvl["sort_order"], lvl["name"], lvl.get("description", ""), now))
|
|
|
|
|
|
# ── Dans-alternativer ─────────────────────────────────────────────────────────
|
|
|
|
def get_alternatives_for_dance(song_dance_id: int) -> list[sqlite3.Row]:
|
|
with get_db() as conn:
|
|
return conn.execute("""
|
|
SELECT da.*, dl.name as level_name, dl.sort_order as level_sort
|
|
FROM dance_alternatives da
|
|
LEFT JOIN dance_levels dl ON dl.id = da.level_id
|
|
WHERE da.song_dance_id = ?
|
|
ORDER BY da.source, dl.sort_order
|
|
""", (song_dance_id,)).fetchall()
|
|
|
|
|
|
def add_alternative(song_dance_id: int, alt_dance_name: str,
|
|
level_id: int | None = None, note: str = "",
|
|
source: str = "local", created_by: str = "") -> str:
|
|
import uuid as _uuid
|
|
alt_id = str(_uuid.uuid4())
|
|
with get_db() as conn:
|
|
conn.execute("""
|
|
INSERT INTO dance_alternatives
|
|
(id, song_dance_id, alt_dance_name, level_id, note, source, created_by)
|
|
VALUES (?,?,?,?,?,?,?)
|
|
""", (alt_id, song_dance_id, alt_dance_name.strip(),
|
|
level_id, note, source, created_by))
|
|
# Registrer alt-dans-navne i ordbogen
|
|
register_dance_name(alt_dance_name, source=source)
|
|
return alt_id
|
|
|
|
|
|
def remove_alternative(alt_id: str):
|
|
with get_db() as conn:
|
|
conn.execute("DELETE FROM dance_alternatives WHERE id=?", (alt_id,))
|