# scripts/random_text_generator.py

import random
import string
import sys
from pathlib import Path


def anonymize_text(text: str) -> str:
    result = []

    for character in text:
        if character.islower():
            result.append(random.choice(string.ascii_lowercase))
        elif character.isupper():
            result.append(random.choice(string.ascii_uppercase))
        elif character.isdigit():
            result.append(random.choice(string.digits))
        else:
            result.append(character)

    return "".join(result)


def main() -> None:
    if len(sys.argv) != 2:
        print("Usage: python scripts/random_text_generator.py <input_file>")
        sys.exit(1)

    input_path = Path(sys.argv[1])

    if not input_path.is_file():
        print(f"File not found: {input_path}")
        sys.exit(1)

    source_text = input_path.read_text(encoding="utf-8")
    anonymized_text = anonymize_text(source_text)

    output_path = input_path.with_name(
        f"{input_path.stem}_anonymized{input_path.suffix}"
    )

    output_path.write_text(anonymized_text, encoding="utf-8")

    print(f"Anonymized file saved to: {output_path}")


if __name__ == "__main__":
    main()