#!/usr/bin/python3
# vi: set tabstop=4 shiftwidth=4 expandtab : #
# version: 3.20220218

import re
import os

pattern = re.compile('^\d{10}$')
unique_names = set()
list_files = sorted(os.listdir(path = '.'))

for filename in list_files:
    if not os.path.isfile(filename):
        continue

    (original_name, ext) = os.path.splitext(filename)
    if not (ext in ['.jpg', '.jpeg', '.jfif', '.png', '.gif', '.webp', '.mp4', '.MP4', '.webm']):
        continue

    if pattern.match(original_name) != None:
        unique_names.add(original_name)
        continue

    file_mtime = int(os.stat(filename).st_mtime)
    new_name = file_mtime
    suffix = 1
    while new_name in unique_names:
        new_name = '%s-%d' % (file_mtime, suffix)
        suffix = suffix + 1
    unique_names.add(new_name)
    full_new_name = '%s%s' % (new_name, ext)
    print('%s -> %s' % (filename, full_new_name))
    os.rename(filename, full_new_name)