feat: initial implementation of navidrome-music-sync with Yandex, Spotify, Apple, YouTube support and Web UI

app/db.py

@@ -0,0 +1,88 @@
+import sqlite3
+import os
+from datetime import datetime
+from typing import Optional, List, Dict, Any
+from app.config import settings
+
+DB_PATH = os.path.join(settings.DATA_DIR, "sync.db")
+
+def get_db():
+    conn = sqlite3.connect(DB_PATH)
+    conn.row_factory = sqlite3.Row
+    return conn
+
+def init_db():
+    conn = get_db()
+    cursor = conn.cursor()
+    
+    # Tracks table
+    cursor.execute("""
+    CREATE TABLE IF NOT EXISTS downloaded_tracks (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        service TEXT NOT NULL,
+        service_id TEXT NOT NULL,
+        artist TEXT NOT NULL,
+        title TEXT NOT NULL,
+        album TEXT,
+        file_path TEXT NOT NULL,
+        downloaded_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+        UNIQUE(service, service_id)
+    )
+    """)
+    
+    # Task table
+    cursor.execute("""
+    CREATE TABLE IF NOT EXISTS tasks (
+        id TEXT PRIMARY KEY,
+        type TEXT NOT NULL,
+        target TEXT NOT NULL,
+        status TEXT NOT NULL,
+        progress INTEGER DEFAULT 0,
+        total INTEGER DEFAULT 0,
+        message TEXT,
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+        updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+    )
+    """)
+    
+    conn.commit()
+    conn.close()
+
+def is_track_downloaded(service: str, service_id: str) -> bool:
+    conn = get_db()
+    cursor = conn.cursor()
+    cursor.execute("SELECT 1 FROM downloaded_tracks WHERE service = ? AND service_id = ?", (service, str(service_id)))
+    row = cursor.fetchone()
+    conn.close()
+    return row is not None
+
+def record_downloaded_track(service: str, service_id: str, artist: str, title: str, album: str, file_path: str):
+    conn = get_db()
+    cursor = conn.cursor()
+    cursor.execute("""
+    INSERT OR REPLACE INTO downloaded_tracks (service, service_id, artist, title, album, file_path, downloaded_at)
+    VALUES (?, ?, ?, ?, ?, ?, ?)
+    """, (service, str(service_id), artist, title, album, file_path, datetime.utcnow()))
+    conn.commit()
+    conn.close()
+
+def get_recent_tracks(limit: int = 50) -> List[Dict[str, Any]]:
+    conn = get_db()
+    cursor = conn.cursor()
+    cursor.execute("""
+    SELECT id, service, service_id, artist, title, album, file_path, downloaded_at 
+    FROM downloaded_tracks 
+    ORDER BY downloaded_at DESC 
+    LIMIT ?
+    """, (limit,))
+    rows = [dict(row) for row in cursor.fetchall()]
+    conn.close()
+    return rows
+
+def get_tracks_count() -> int:
+    conn = get_db()
+    cursor = conn.cursor()
+    cursor.execute("SELECT COUNT(*) FROM downloaded_tracks")
+    count = cursor.fetchone()[0]
+    conn.close()
+    return count