import urllib
import urllib.request
import tarfile
import os
import platform
import time
import shutil
import sys
from pathlib import Path

#detect operating system and find home folder
homedir = os.path.expanduser("~")

#operating system specific operations.
#we find the minecraft folder in this section.
if platform.system() == "Linux":
    print("Operating system detected: Linux")

elif platform.system() == "Windows":
    print("Operating system detected: Windows")

elif platform.system() == "Darwin":
    print("Operating system detected: MacOS")
    print("fuck you.")
    #needs function

os.chdir(homedir + '/.minecraft')
mcfolder = Path.cwd()

modfolder = homedir + '/.minecraft/mods'

os.chdir(mcfolder)

print("Changed current working directory to '" + str(mcfolder) + "'")
time.sleep(2)



#begin mod backup and deletion
#THIS DOESN'T CURRENTLY BACK UP EXISTING MODS.
try:
    shutil.rmtree(modfolder)
    print("Cleared previous mods.")
except OSError as e:
    print("Error: %s - %s." % (e.filename, e.strerror))

os.mkdir(modfolder)



#begin download and extract
#this snippet below defines a tar extract FUNCTION
def extract_tar_archive(tar_file_path, extract_to):
    with tarfile.open(tar_file_path, 'r') as tar:
        tar.extractall(extract_to)

print("Starting install...")

print("Fetching mods...")
#this is the SIMPLEST implementation of curl i have ever seen i just NUTTED SO FUCKING HARD
url = 'https://git.adolin.xyz/saru/lobotomy-mod-pack/raw/branch/main/mods.tar.gz'
urllib.request.urlretrieve(url, 'mods.tar.gz')

print("Extracting and writing to disk...")

tar_file_path = 'mods.tar.gz'
extract_to = 'mods'
extract_tar_archive(tar_file_path, extract_to)

print("All Done!")
print("This script will exit and close in ten seconds. :)")
time.sleep(10)