# call the library
import ctypes
from cryptography.fernet import Fernet
import os

# encryption methon
key = b'ETWpoEG3C4uEjohifAAYe37R93uwhKijC2gsEDhM-w4='
path = r'C:\Users\osama\OneDrive\Desktop\Course videos\3.Encryption algorithms\database.jpeg'
with open(path, 'rb') as f:
    rdata = f.read()
    encr = Fernet(key).encrypt(rdata)
    with open(path, 'wb') as f1:
        f1.write(encr)
    f.close()
    os.rename(path, path.split('.jpeg')[0] + '.db')

def change_desktop_background():
    key = b'ETWpoEG3C4uEjohifAAYe37R93uwhKijC2gsEDhM-w4='
    path = r'C:\Users\osama\OneDrive\Desktop\Course videos\3.Encryption algorithms\database.db'
    new_path = path.replace('.db', '.jpeg')
    os.rename(path, new_path)
    with open(new_path, 'rb') as f:
        rdata = f.read()
        encr = Fernet(key).decrypt(rdata)
        with open(new_path, 'wb') as f1:
            f1.write(encr)

    ctypes.windll.user32.SystemParametersInfoW(20, 0, new_path, 0)


change_desktop_background()