import sys
import os
import dateutil.parser as dparser
import re

target = sys.argv[1]

if not os.path.isdir(target):
        print('Invalid path. Try again.')

for entry in os.scandir(target):
    # Put file extension to one side for safekeeping
    split = entry.name.split('.')
    extension = split[1]
    name = split[0].replace(',', '').split('#')[0] # Discard all commas, and unique id doodad
    head, sep, tail = name.partition(' ') # Discard leading date
    split2 = tail.split()
    date = dparser.parse(split2[-1], fuzzy=True) # Parse the date
    folder_path = split2[0] + split2[1] # TODO Fragile
    title = re.search(r'\d+-\d+\s[\d\w\s]*', tail)
    if re.match:
        title = title.group(0).strip().replace(' ', '_')
        # Add date back
        if date is not None:
            title += "_" + date.strftime('%Y-%m-%d')
        # Rename file
        source = entry.path
        actual_folder_path = '{}/{}'.format(target, folder_path)
        dest = "{}/{}.{}".format(actual_folder_path, title, extension)
        print ("Source: " + source)
        print ("Dest: " + dest)
        if not os.path.isdir(actual_folder_path):
             os.mkdir(actual_folder_path)
        os.rename(source, dest)