refactor(kiauh): move core modules to core package

Signed-off-by: Dominik Willner <th33xitus@gmail.com>

kiauh/core/config_manager/config_manager.py

@@ -0,0 +1,61 @@
+#!/usr/bin/env python
+
+# ======================================================================= #
+#  Copyright (C) 2020 - 2023 Dominik Willner <th33xitus@gmail.com>        #
+#                                                                         #
+#  This file is part of KIAUH - Klipper Installation And Update Helper    #
+#  https://github.com/dw-0/kiauh                                          #
+#                                                                         #
+#  This file may be distributed under the terms of the GNU GPLv3 license  #
+# ======================================================================= #
+
+import os
+import configparser
+from pathlib import Path
+from typing import Union
+
+from kiauh.utils.logger import Logger
+
+
+# noinspection PyMethodMayBeStatic
+class ConfigManager:
+    def __init__(self):
+        self.config_file = self._get_cfg_location()
+        self.config = configparser.ConfigParser()
+
+    def read_config(self) -> None:
+        if not self.config_file:
+            Logger.print_error("Unable to read config file. File not found.")
+            return
+
+        self.config.read_file(open(self.config_file, "r"))
+
+    def write_config(self) -> None:
+        with open(self.config_file, "w") as cfg:
+            self.config.write(cfg)
+
+    def get_value(self, section: str, key: str) -> Union[str, None]:
+        if not self.config.has_section(section):
+            log = f"Section not defined. Unable to read section: [{section}]."
+            Logger.print_error(log)
+            return None
+
+        if not self.config.has_option(section, key):
+            log = f"Option not defined in section [{section}]. Unable to read option: '{key}'."
+            Logger.print_error(log)
+            return None
+
+        return self.config.get(section, key)
+
+    def set_value(self, section: str, key: str, value: str):
+        self.config.set(section, key, value)
+
+    def check_config_exists(self) -> bool:
+        return True if self._get_cfg_location() else False
+
+    def _get_cfg_location(self) -> str:
+        current_dir = os.path.dirname(os.path.abspath(__file__))
+        project_dir = os.path.dirname(os.path.dirname(current_dir))
+        cfg_path = os.path.join(project_dir, "kiauh.cfg")
+
+        return cfg_path if Path(cfg_path).exists() else None