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#!/usr/bin/python3
# -*- coding: utf-8 -*-
import argparse
from collections import defaultdict
import json
import os
from pathlib import Path
import random
import re
import sys

pwd = os.path.abspath(os.path.dirname(__file__))
sys.path.append(os.path.join(pwd, '../../'))

from datasets import load_dataset
from tqdm import tqdm

from project_settings import project_path


def get_args():
    parser = argparse.ArgumentParser()

    parser.add_argument("--data_file", default="data/spam_message_lr/train.txt", type=str)
    parser.add_argument(
        "--output_file",
        default=(project_path / "data/spam_message_lr.jsonl"),
        type=str
    )
    args = parser.parse_args()
    return args


def main():
    args = get_args()

    with open(args.output_file, "w", encoding="utf-8") as fout:
        with open(args.data_file, "r", encoding="utf-8") as fin:
            for row in fin:
                row = str(row).rstrip("\n")
                row = row.split("\t", maxsplit=1)

                if len(row) != 2:
                    print(row)
                    raise AssertionError

                label = row[0]
                text = row[1]

                label = "spam" if label == "1" else "ham"

                if label not in ("spam", "ham"):
                    raise AssertionError

                num = random.random()
                if num < 0.9:
                    split = "train"
                elif num < 0.95:
                    split = "validation"
                else:
                    split = "test"

                row = {
                    "text": text,
                    "label": label,
                    "category": None,
                    "data_source": "spam_message_lr",
                    "split": split
                }
                row = json.dumps(row, ensure_ascii=False)
                fout.write("{}\n".format(row))

    return


if __name__ == '__main__':
    main()