def main(args):
    """Loop thru all the games and parse them."""
    if not os.path.isdir(args.dir):
        print ("The specified folder is not a directory.")
        sys.exit(1)
    NUMBER_OF_FILES = len(os.listdir(args.dir))
    if args.num_of_files:
        NUMBER_OF_FILES = args.num_of_files
    print ("Parsing", NUMBER_OF_FILES, "files")
    sql = None
    if not args.stdout:
        sql = sqlite3.connect(args.database)
        sql.execute("""PRAGMA foreign_keys = ON;""")
        sql.execute("""CREATE TABLE airdates(
            game INTEGER PRIMARY KEY,
            airdate TEXT
        );""")
        sql.execute("""CREATE TABLE documents(
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            clue TEXT,
            answer TEXT
        );""")
        sql.execute("""CREATE TABLE categories(
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            category TEXT UNIQUE
        );""")
        sql.execute("""CREATE TABLE clues(
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            game INTEGER,
            round INTEGER,
            value INTEGER,
            FOREIGN KEY(id) REFERENCES documents(id),
            FOREIGN KEY(game) REFERENCES airdates(game)
        );""")
        sql.execute("""CREATE TABLE classifications(
            clue_id INTEGER,
            category_id INTEGER,
            FOREIGN KEY(clue_id) REFERENCES clues(id),
            FOREIGN KEY(category_id) REFERENCES categories(id)
        );""")
    for i, file_name in enumerate(glob(os.path.join(args.dir, "*.html")), 1):
        with open(os.path.abspath(file_name)) as f:
            parse_game(f, sql, i)
    if not args.stdout:
        sql.commit()
    print ("All done")