import os
import subprocess

import lib.sources as sources


def autopatch():
    if not os.path.exists("patches"):
        return

    target_dir = os.getcwd() + "/target"
    source_dir = sources.sources_dir_name()
    patches_tag_file = f"{target_dir}/patches.tag"

    patches_dir = os.getcwd() + "/patches"
    patches = os.listdir(patches_dir)
    patches.sort()

    os.chdir(source_dir)
    if not os.path.exists(patches_tag_file):
        open(patches_tag_file, "+w").close()
    for i in patches:
        with open(patches_tag_file, "r") as file:
            if i + "\n" in file.readlines():
                continue
        with open(f"{patches_dir}/{i}", "r") as file:
            subprocess.run(["patch", "-p1"], stdin=file)
        with open(patches_tag_file, "+a") as file:
            file.write(i + "\n")