#!/usr/bin/env python
# -*- coding: utf-8 -*-

"""
This script walks through a directory and copies .tags files to .txt files, but only
if a .txt file of the same name doesn't already exist.

Usage:
    - Place the script in the directory containing the .tags files
    - Run the script to copy .tags files to .txt files
    - Use the dry_run flag to preview the changes without writing files

Functions:
    get_files(path): Walks through the directory and yields .tags files that don't have corresponding .txt files
    copy_tags(tags_path, txt_path, dry_run=False): Copies the contents of the .tags file to a new .txt file
"""

from pathlib import Path
import os
import shutil

def get_files(path):
    path = Path(path)
    # Walk the directory, looking for .tags files
    for root, dirs, files in os.walk(path):
        root = path / root
        for file in files:
            file = root / file
            if file.suffix != '.tags':
                continue
                
            txt = file.with_suffix(".txt")
            if txt.exists():
                print(f"Skipping {file}: {txt} already exists")
                continue
                
            yield file, txt

def copy_tags(tags_path, txt_path, dry_run=False):
    if dry_run:
        print(f"Would copy {tags_path} to {txt_path}")
    else:
        shutil.copy2(tags_path, txt_path)
        print(f"Copied {tags_path} to {txt_path}")

if __name__ == "__main__":
    dry_run = False
    for tags_file, txt_file in get_files("."):
        copy_tags(tags_file, txt_file, dry_run=dry_run)