#!/usr/bin/env python3
"""
Usage:
  python3 recount_files.py <number> (<directory>)
"""

import os
from pathlib import Path
import sys
import re
from termcolor import colored

def main():
    if len(sys.argv) == 2:
        dir = Path(os.getcwd())
    elif (len(sys.argv) == 3):
        dir = Path(sys.argv[2])
    else:
        print("Usage: recount_files.py <number> (<directory>)")
        sys.exit(1)
    import subprocess
    subprocess.run(["python", "/home/honney/.bin/tracker.py", "add", "recount_files"])

    number = int(sys.argv[1])

    pattern = re.compile(r'^\d+')

    files = sorted(
        [f for f in dir.iterdir() if f.is_file() and pattern.match(f.name)],
        key=lambda f: float(f.stem)
    )

    min_num = int(files[0].stem)
    max_len = max(len(files[-1].stem), 2)

    for f in files:
        try:
            delta = int(f.stem)-min_num
            new_file_name = Path(f"{f.parent}/{delta+number:0{max_len}d}{f.suffix}")
        except:
            delta = float(f.stem)-min_num
            new_file_name = Path(f"{f.parent}/{delta+number:0{max_len+2}.1f}{f.suffix}")
        if not new_file_name.is_file():
            print(
                colored("Renamed: ", "green") +
                colored(str(f.parent), "cyan") +
                colored("[", "white") +
                colored(f.name, "red") +
                colored(" -> ", "white") +
                colored(new_file_name.name, "green") +
                colored("]", "white")
            )
            f.rename(new_file_name)
        else:
            print(colored(f"{new_file_name.name} already exists. Aborting", "red"))
    

if __name__ == "__main__":
    main()