VTOP Coursepage File unzip and sorter

sorter.py

import zipfile
import tkinter as tk
from tkinter import filedialog
from pathlib import Path
import os
from datetime import timedelta, datetime

def unzip_file(path, folder_name):
    with zipfile.ZipFile(path, 'r') as zip_ref:
        zip_ref.extractall("{}".format(folder_name))

# CoursePage-Material_FALLSEM2022-23_CSE3001_ETH_VL2022230104121_16702_2022-08-31_10-34-57.zip

def convert_roman_to_int(roman):
    roman = roman.upper()
    roman_dict = {'M': 1000, 'D': 500, 'C': 100, 'L': 50, 'X': 10, 'V': 5, 'I': 1}
    int_value = 0
    for i in range(len(roman)):
        if i > 0 and roman_dict[roman[i]] > roman_dict[roman[i - 1]]:
            int_value += roman_dict[roman[i]] - 2 * roman_dict[roman[i - 1]]
        else:
            int_value += roman_dict[roman[i]]
    return int_value

def main():

    root = tk.Tk()
    root.withdraw()

    file_path = filedialog.askopenfilename()

    file_name = Path(file_path).name
    if not file_path or "CoursePage-Material" not in file_name:
        print("File chosen is not a CoursePage-Material file")
        exit(0)
    course_name = file_name.split("_")[1]+"_"+file_name.split("_")[2]  
    course_code = file_name.split("_")[2]  
    if file_path and file_path.endswith(".zip"):
        unzip_file(file_path, course_name)
    
    names_and_dates = {}
    count_of_general_materials = 0
    course_name_full = course_name
    for i in os.listdir(course_name):
        if i.startswith(course_code):
            course_name_full = i.split("_")[0]+"_"+i.split("_")[1]
            os.rename(course_name, course_name_full)
            names_and_dates.update({i:datetime.strptime("2000-01-01", "%Y-%m-%d")})
            os.rename(course_name_full+"/"+i, course_name_full+"/0) SYLLABUS.pdf")
        elif "Reference_Material" in i:
            name_of_file = " ".join(i.split("_")[8:])
            os.rename(course_name_full+"/"+i, course_name_full+"/"+name_of_file)
            date_of_file = datetime.strptime(i.split("_")[7], "%d-%m-%Y")
            resource_number = i.split("_")[6]
            for i in range(convert_roman_to_int(resource_number) - 1):
                date_of_file+=timedelta(hours=1)
            names_and_dates.update({name_of_file:date_of_file})
        else:
            name_of_file = " ".join(i.split("_")[4:])
            os.rename(course_name_full+"/"+i, course_name_full+"/"+name_of_file)
            date_of_file = datetime.strptime("01-01-2001", "%d-%m-%Y")
            count_of_general_materials += 1
            for i in range(count_of_general_materials):
                date_of_file+=timedelta(hours=1)
            names_and_dates.update({name_of_file:date_of_file})

    list_of_names = list(names_and_dates.keys())
    list_of_names.sort(key=lambda x: names_and_dates[x])

    for i in range(1, len(list_of_names)):
        os.rename(course_name_full+"/"+list_of_names[i], course_name_full+"/"+str(i)+") "+list_of_names[i])

if __name__ == "__main__":
    main()