#!/usr/bin/python3
# -*- coding: utf-8 -*-
import argparse
from pathlib import Path
import shutil

import pandas as pd

from project_settings import project_path


def get_args():
    parser = argparse.ArgumentParser()
    parser.add_argument(
        "--data_dir",
        default=(project_path / "data").as_posix(),
        type=str
    )
    parser.add_argument(
        "--output_file",
        default="metadata.csv",
        type=str
    )
    args = parser.parse_args()
    return args


def main():
    args = get_args()

    data_dir = Path(args.data_dir)
    filename_list = data_dir.glob("*/*.txt")

    result = list()
    for filename in filename_list:
        name = filename.stem
        splits = name.split("_")
        idx = splits[-1]
        novel_name = "_".join(splits[:-1])

        result.append({
            "source": filename.parts[-2],
            "idx": idx,
            "filename": "/".join(filename.parts[-3:]),
            "novel_name": novel_name
        })

    result = pd.DataFrame(result)
    result.to_csv(args.output_file, index=False, encoding="utf_8_sig")
    return


if __name__ == '__main__':
    main()