import string
from json import dumps as json_dumps
from json import loads as json_loads
from random import choice
from subprocess import Popen, PIPE

from app.core.logger import make_log


class ConfigFile:
    def __init__(self, filepath: str):
        self.filepath = filepath
        self.values

    @property
    def values(self):
        with open(self.filepath, 'r') as file:
            return json_loads(file.read())

        assert isinstance(self.values, dict)

    def get(self, key, default=None):
        return self.values.get(key, default)

    def set(self, key, value):
        random_part = choice(string.ascii_lowercase)
        app_cached_values = self.values
        app_cached_values[key] = value
        with open(f"{'/'.join(self.filepath.split('/')[:-1])}/.backup_{self.filepath.split('/')[-1]}_{random_part}", 'w') as file:
            file.write(
                json_dumps(
                    app_cached_values,
                    indent=4,
                    sort_keys=True
                )
            )

        with open(self.filepath, 'w') as file:
            file.write(
                json_dumps(
                    app_cached_values,
                    indent=4,
                    sort_keys=True
                )
            )

        make_log("ConfigFile", f"Edited {key}", level="debug")
        p1 = Popen(["md5sum", self.filepath], stdout=PIPE, stderr=PIPE)
        p1.wait()
        out1, err1 = p1.communicate()
        p2 = Popen(["md5sum", f"{'/'.join(self.filepath.split('/')[:-1])}/.backup_{self.filepath.split('/')[-1]}_{random_part}"], stdout=PIPE, stderr=PIPE)
        p2.wait()
        out2, err2 = p2.communicate()
        if err1 or err2:
            make_log("ConfigFile", f"Error when editing {key} (check md5sum): {err1} {err2}", level="error")
            return self.set(key, value)

        fingerprint1 = out1.split()[0].strip()
        fingerprint2 = out2.split()[0].strip()

        if fingerprint1 != fingerprint2:
            make_log("ConfigFile", f"Error when editing {key} (check md5sum): {fingerprint1} {fingerprint2}", level="error")
            return self.set(key, value)