# cache/video_summary.py
import db

def rebuild_video_summary():
    with db.get_conn() as conn:
        conn.execute("DROP TABLE IF EXISTS video_summary")
        conn.execute("""
            CREATE TABLE video_summary AS
            SELECT
                v.file_name,
                v.raw_file,
                v.mp4_file,
                v.record_datetime,
                v.day_of_week,
                v.difficulty_level,
                v.address,
                GROUP_CONCAT(DISTINCT l.name) AS labels,
                GROUP_CONCAT(DISTINCT p.name) AS playlists
            FROM videos v
            LEFT JOIN video_labels vl ON vl.video_file_name = v.file_name
            LEFT JOIN labels l ON l.id = vl.label_id
            LEFT JOIN video_playlists vp ON vp.video_file_name = v.file_name
            LEFT JOIN playlists p ON p.id = vp.playlist_id
            GROUP BY v.file_name
        """)
        conn.commit()