import hashlib
import csv

INPUT_OUTPUT_COUPLES = [
    ("./dataset/train.tsv", "./hashed_dataset/hashed_train.tsv"),
    ("./dataset/valid.tsv", "./hashed_dataset/hashed_valid.tsv"),
    ("./dataset/test.tsv", "./hashed_dataset/hashed_test.tsv")]


def main(input_file, output_file):
    with open(input_file) as f:
        r = csv.reader(f, delimiter='\t', quoting=csv.QUOTE_NONE)
        data=[]
        for line in r:
            data.append(line)
    hashes_and_labels = []
    for line in data:
        hash_ = hashlib.sha256(f"{line[0]}{line[1]}".encode('utf-8')).hexdigest()
        if len(line) < 3:
            print(line)
        label = line[2]
        hashes_and_labels.append((hash_, label))
    with open(output_file, 'w') as o:
        for hash_, label in hashes_and_labels:
            o.write(f"{hash_}\t{label}\n")


if __name__ == "__main__":
    for input_file, output_file in INPUT_OUTPUT_COUPLES:
        main(input_file, output_file)