part one more optimization with app_config file

.idea/workspace.xml

@@ -5,7 +5,7 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="940e1630-c825-4d4c-be80-bc11f543c122" name="Changes" comment=" - Update Translate Files">
-      <change beforePath="$PROJECT_DIR$/cls_mth_fc.py" beforeDir="false" afterPath="$PROJECT_DIR$/cls_mth_fc.py" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/wirepy.py" beforeDir="false" afterPath="$PROJECT_DIR$/wirepy.py" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
@@ -43,28 +43,28 @@
     <option name="hideEmptyMiddlePackages" value="true" />
     <option name="showLibraryContents" value="true" />
   </component>
-  <component name="PropertiesComponent">{
-  &quot;keyToString&quot;: {
-    &quot;ASKED_ADD_EXTERNAL_FILES&quot;: &quot;true&quot;,
-    &quot;Python.INSTALL.executor&quot;: &quot;Run&quot;,
-    &quot;Python.cls_mth_fc.executor&quot;: &quot;Run&quot;,
-    &quot;Python.install.executor&quot;: &quot;Run&quot;,
-    &quot;Python.main.executor&quot;: &quot;Run&quot;,
-    &quot;Python.messagebox.executor&quot;: &quot;Run&quot;,
-    &quot;Python.start_wg.executor&quot;: &quot;Run&quot;,
-    &quot;Python.testtheme.executor&quot;: &quot;Run&quot;,
-    &quot;Python.wg_func.executor&quot;: &quot;Run&quot;,
-    &quot;Python.wg_main.executor&quot;: &quot;Run&quot;,
-    &quot;Python.wirepy.executor&quot;: &quot;Run&quot;,
-    &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
-    &quot;RunOnceActivity.git.unshallow&quot;: &quot;true&quot;,
-    &quot;Shell Script.install.executor&quot;: &quot;Run&quot;,
-    &quot;Shell Script.run_as.executor&quot;: &quot;Run&quot;,
-    &quot;git-widget-placeholder&quot;: &quot;21-04-2025-new-tooltip&quot;,
-    &quot;last_opened_file_path&quot;: &quot;/home/punix/Pyapps/wire-py&quot;,
-    &quot;settings.editor.selected.configurable&quot;: &quot;ml.llm.LLMConfigurable&quot;
+  <component name="PropertiesComponent"><![CDATA[{
+  "keyToString": {
+    "ASKED_ADD_EXTERNAL_FILES": "true",
+    "Python.INSTALL.executor": "Run",
+    "Python.cls_mth_fc.executor": "Run",
+    "Python.install.executor": "Run",
+    "Python.main.executor": "Run",
+    "Python.messagebox.executor": "Run",
+    "Python.start_wg.executor": "Run",
+    "Python.testtheme.executor": "Run",
+    "Python.wg_func.executor": "Run",
+    "Python.wg_main.executor": "Run",
+    "Python.wirepy.executor": "Run",
+    "RunOnceActivity.ShowReadmeOnStart": "true",
+    "RunOnceActivity.git.unshallow": "true",
+    "Shell Script.install.executor": "Run",
+    "Shell Script.run_as.executor": "Run",
+    "git-widget-placeholder": "28-04-2025-more-methods-and-optimize-methods",
+    "last_opened_file_path": "/home/punix/Pyapps/wire-py",
+    "settings.editor.selected.configurable": "ml.llm.LLMConfigurable"
   }
-}</component>
+}]]></component>
   <component name="RecentsManager">
     <key name="CopyFile.RECENT_KEYS">
       <recent name="$PROJECT_DIR$/lx-icons" />

Changelog

@@ -41,7 +41,7 @@ My standard System: Linux Mint 22 Cinnamon
 
  - Fix ipv6 in Config File on import
  - Wirepy run now as user
- - settings, keys and Config Files now in ~/.config/wire_py
+ - settings, AppConfig.KEYS_FILE and Config Files now in ~/.config/wire_py
  - For new users, the required files are created and autostart service is started. 
  - Tunnels are now read from the directory to view them in the list. 
    To display only own tunnels, and read errors are minimized.

cls_mth_fc.py

@@ -14,16 +14,11 @@ from datetime import datetime
 from pathlib import Path
 from subprocess import check_call, CompletedProcess
 from tkinter import ttk, Toplevel
-
+from wp_app_config import AppConfig, Msg
 import requests
 
-APP = "wirepy"
-LOCALE_DIR = "/usr/share/locale/"
-locale.bindtextdomain(APP, LOCALE_DIR)
-gettext.bindtextdomain(APP, LOCALE_DIR)
-gettext.textdomain(APP)
-_ = gettext.gettext
-
+# Translate
+_ = AppConfig.setup_translations()
 
 class Create:
     """
@@ -41,7 +36,7 @@ class Create:
         pth: Path = Path.home() / ".config/wire_py"
         pth.mkdir(parents=True, exist_ok=True)
         sett: Path = Path.home() / ".config/wire_py/settings"
-        ks: Path = Path.home() / ".config/wire_py/keys"
+        AppConfig.KEYS_FILE
 
         if sett.exists():
             pass
@@ -50,11 +45,11 @@ class Create:
             sett.touch()
             sett.write_text("[UPDATES]\non\n[THEME]\nlight\n[TOOLTIP]\nTrue\n[AUTOSTART ON]\noff\n")
 
-        if ks.exists():
+        if AppConfig.KEYS_FILE.exists():
             pass
 
         else:
-            ks.touch()
+            AppConfig.KEYS_FILE.touch()
 
     @staticmethod
     def files_for_autostart() -> None:
@@ -80,11 +75,10 @@ class Create:
     def make_dir() -> None:
         """Folder Name "tlecdewg" = Tunnel Encrypt Decrypt Wireguard"""
 
-        folder_path: Path = Path("/tmp/tlecdcwg/")
-        if folder_path.exists():
+        if AppConfig.TEMP_DIR.exists():
             pass
         else:
-            folder_path.mkdir()
+            AppConfig.TEMP_DIR.mkdir()
 
     @staticmethod
     def decrypt() -> None:
@@ -125,6 +119,31 @@ class LxTools(tk.Tk):
     def __init__(self, *args: Any, **kwargs: Any) -> None:
         super().__init__(*args, **kwargs)
 
+    @staticmethod
+    def get_file_name(path: Path, i: int = 5) -> List[str]:
+        """
+        Recursively searches the specified path for files and returns a list of filenames,
+        with the last 'i' characters of each filename removed.
+
+        This method is useful for obtaining filenames without specific file extensions,
+        e.g., to remove '.conf' from Wireguard configuration files.
+
+        Args:
+            path (Path): The directory path to search
+            i (int, optional): Number of characters to remove from the end of each filename.
+                            Default is 5, which typically corresponds to the length of '.conf'.
+
+        Returns:
+            List[str]: A list of filenames without the last 'i' characters
+
+        Example:
+            If path contains files like 'tunnel1.conf', 'tunnel2.conf' and i=5,
+            the method returns ['tunnel1', 'tunnel2'].
+        """
+        lists_file = list(path.rglob("*"))
+        lists_file = [conf_file.name[:-i] for conf_file in lists_file]
+        return lists_file
+
     @staticmethod
     def uos() -> None:
         """
@@ -135,19 +154,18 @@ class LxTools(tk.Tk):
         """
         log_name: str = f"{Path.home()}"[6:]
         file: Path = Path.home() / "/tmp/.log_user"
-        with open(file, "w", encoding="utf-8") as f:
-            f.write(log_name)
+        Path(file).write_text(log_name, encoding="utf-8")
 
     @staticmethod
-    def clean_files(folder_path: Path = None, file: Path = None) -> None:
+    def clean_files(TEMP_DIR: Path = None, file: Path = None) -> None:
         """
         method that can be added after need to delete a folder and a file when quitting.
         Args:
             :param file: default None
-            :param folder_path: default None
+            :param AppConfig.TEMP_DIR: default None
         """
-        if folder_path is not None:
-            shutil.rmtree(folder_path)
+        if AppConfig.TEMP_DIR is not None:
+            shutil.rmtree(AppConfig.TEMP_DIR)
         if file is not None:
             Path.unlink(file)
 
@@ -156,14 +174,22 @@ class LxTools(tk.Tk):
         """
         method that writes in file whether tooltip is displayed or not
         """
-        with open(path, "r", encoding="utf-8") as set_f2:
-            lines2 = set_f2.readlines()
-            if "False\n" in lines2:
+        lines = Path(path).read_text(encoding="utf-8")
+        if "False\n" in lines:
             tip = False
         else:
             tip = True
         return tip
 
+
+    def theme_change(self) -> None:
+
+        lines = AppConfig.SETTINGS_FILE.read_text()
+        if "light\n" in lines:
+            self.tk.call("set_theme", "light")
+        else:
+            self.tk.call("set_theme", "dark")
+            
     @staticmethod
     def msg_window(img_w: str, img_i: str, w_title: str, w_txt: str, txt2: Optional[str] = None,
                    com: Optional[str] = None) -> None:
@@ -394,8 +420,8 @@ class Tunnel:
         """
         Returns a list of Wireguard tunnel names
         """
-        folder_path: Path = Path("/tmp/tlecdcwg/")
-        wg_s: List[str] = os.listdir(folder_path)
+        AppConfig.TEMP_DIR: Path = Path("/tmp/tlecdcwg/")
+        wg_s: List[str] = os.listdir(AppConfig.TEMP_DIR)
 
         return wg_s
 
@@ -425,17 +451,15 @@ class Tunnel:
                 with zipfile.ZipFile(f"{wg_tar}.zip", "r") as zf:
                     if len(zf.namelist()) != 0:
 
-                        msg_t: str = _("Your zip file is in home directory")
-                        LxTools.msg_window(img_w, img_i, _("Export Successful"), msg_t)
+                        LxTools.msg_window(img_w, img_i, Msg.STR["exp_succ"], Msg.STR["exp_in_home"])
 
                     else:
 
-                        msg_t: str = _("Export failed! Please try again")
-                        LxTools.msg_window(img_w2, img_i2, _("Export error"), msg_t)
+                        LxTools.msg_window(img_w2, img_i2, Msg.STR["exp_err"], Msg.STR["exp_try"])
 
             else:
 
-                LxTools.msg_window(img_w, img_i2, sl, pfit)
+                LxTools.msg_window(img_w, img_i2, Msg.STR["sel_tl"], Msg.STR["tl_first"])
 
         except TypeError:
             pass
@@ -485,6 +509,7 @@ class Tooltip:
         label: tk.Label = tk.Label(tw, text=self.text, background="lightgreen", foreground="black", relief="solid",
                                    borderwidth=1, padx=5, pady=5)
         label.grid()
+        self.tooltip_window.after(2200, lambda: tw.destroy())
 
     def hide_tooltip(self, event: Optional[Any] = None) -> None:
         """

install

@@ -17,7 +17,7 @@ install_file_with(){
       exit 0
   else 
     sudo apt install python3-tk && \
-    sudo cp -fv wirepy.py start_wg.py cls_mth_fc.py ssl_encrypt.py ssl_decrypt.py /usr/local/bin/ && \
+    sudo cp -fv wirepy.py start_wg.py wp_app_config.py cls_mth_fc.py ssl_encrypt.py ssl_decrypt.py /usr/local/bin/ && \
     sudo cp -uR lx-icons /usr/share/icons/ &&  sudo cp -uR TK-Themes /usr/share/ && \
     sudo cp -u languages/de/*.mo /usr/share/locale/de/LC_MESSAGES/ && \
     sudo cp -fv Wire-Py.desktop /usr/share/applications/ && \
@@ -43,7 +43,7 @@ install_arch_d(){
         exit 0
   else 
     sudo pacman -S --noconfirm tk python3 python-requests && \
-    sudo cp -fv wirepy.py start_wg.py cls_mth_fc.py ssl_encrypt.py ssl_decrypt.py /usr/local/bin/ && \
+    sudo cp -fv wirepy.py start_wg.py wp_app_config.py cls_mth_fc.py ssl_encrypt.py ssl_decrypt.py /usr/local/bin/ && \
     sudo cp -uR lx-icons /usr/share/icons/ &&  sudo cp -uR TK-Themes /usr/share/ && \
     sudo cp -u languages/de/*.mo /usr/share/locale/de/LC_MESSAGES/ && \
     sudo cp -fv Wire-Py.desktop /usr/share/applications/ && \
@@ -120,7 +120,7 @@ install(){
             exit 0
       else
         sudo dnf install python3-tkinter -y
-        sudo cp -fv wirepy.py start_wg.py cls_mth_fc.py ssl_encrypt.py ssl_decrypt.py /usr/local/bin/ && \
+        sudo cp -fv wirepy.py start_wg.py wp_app_config.py cls_mth_fc.py ssl_encrypt.py ssl_decrypt.py /usr/local/bin/ && \
         sudo cp -uR lx-icons /usr/share/icons/ &&  sudo cp -uR TK-Themes /usr/share/ && \
         sudo cp -u languages/de/*.mo /usr/share/locale/de/LC_MESSAGES/ && \
         sudo cp -fv Wire-Py.desktop /usr/share/applications/  && \
@@ -145,7 +145,7 @@ install(){
           rm -r ~/.config/wire_py && rm -r ~/.config/systemd
           exit 0
       else 
-        sudo cp -fv wirepy.py start_wg.py cls_mth_fc.py ssl_encrypt.py ssl_decrypt.py /usr/local/bin/ && \
+        sudo cp -fv wirepy.py start_wg.py wp_app_config.py cls_mth_fc.py ssl_encrypt.py ssl_decrypt.py /usr/local/bin/ && \
         sudo cp -uR lx-icons /usr/share/icons/ &&  sudo cp -uR TK-Themes /usr/share/ && \
         sudo cp -u languages/de/*.mo /usr/share/locale/de/LC_MESSAGES/ && \
         sudo cp -fv Wire-Py.desktop /usr/share/applications/ && \
@@ -181,7 +181,7 @@ install(){
 
 remove(){
     sudo rm -f /usr/local/bin/wirepy /usr/local/bin/wirepy.py /usr/local/bin/start_wg.py \
-    /usr/local/bin/cls_mth_fc.py /usr/local/bin/ssl_encrypt.py /usr/local/bin/ssl_decrypt.py 
+    /usr/local/bin/wp_app_config.py cls_mth_fc.py /usr/local/bin/ssl_encrypt.py /usr/local/bin/ssl_decrypt.py 
     if [ $? -ne 0 ]
       then
         exit 0

ssl_decrypt.py

@@ -5,14 +5,12 @@ import os
 import shutil
 from pathlib import Path
 from subprocess import check_call
+from wp_app_config import AppConfig
 
 uname: Path = Path("/tmp/.log_user")
 
-with open(uname, "r", encoding="utf-8") as f:
-    log_name = f.readline()
+log_name = Path(uname).read_text(encoding="utf-8")
 
-# Folder Name "tlecdewg" = Tunnel Encrypt Decrypt Wireguard
-folder_path: Path = Path("/tmp/tlecdcwg/")
 keyfile: Path = Path(f"/home/{log_name}/.config/wire_py/pbwgk.pem")
 PKEYFILE: Path = "/usr/local/etc/ssl/pwgk.pem"
 
@@ -21,15 +19,16 @@ if not keyfile.is_file():
     check_call(["openssl", "rsa", "-in", PKEYFILE, "-out", keyfile, "-outform", "PEM", "-pubout"])
     shutil.chown(keyfile, 1000, 1000)
 
-folder_path2 = f"/home/{log_name}/.config/wire_py/"
-detl: list[str] = os.listdir(folder_path2)
-os.chdir(folder_path2)
+AppConfig.TEMP_DIR2 = f"/home/{log_name}/.config/wire_py/"
+detl: list[str] = os.listdir(AppConfig.TEMP_DIR2)
+os.chdir(AppConfig.TEMP_DIR2)
 detl.remove("keys")
 detl.remove("settings")
-if os.path.exists(f"{folder_path2}pbwgk.pem"):
+if os.path.exists(f"{AppConfig.TEMP_DIR2}pbwgk.pem"):
     detl.remove("pbwgk.pem")
     for detunnels in detl:
         tlname2 = f"{detunnels[:-4]}.conf"
-        extpath = f"{folder_path}/{tlname2}"
-        check_call(["openssl", "pkeyutl", "-decrypt", "-inkey", PKEYFILE, "-in", detunnels, "-out", extpath])
+        extpath = f"{AppConfig.TEMP_DIR}/{tlname2}"
+        check_call(["openssl", "pkeyutl", "-decrypt", "-inkey", PKEYFILE, "-in", detunnels,
+                    "-out", extpath])
         shutil.chown(extpath, 1000, 1000)

ssl_encrypt.py

@@ -6,13 +6,13 @@ import shutil
 from pathlib import Path
 from subprocess import check_call
 
+from wp_app_config import AppConfig
+
 uname: Path = Path("/tmp/.log_user")
 
-with open(uname, "r", encoding="utf-8") as f:
-    log_name: str = f.readline()
+log_name = Path(uname).read_text(encoding="utf-8")
 
 keyfile: Path = Path(f"/home/{log_name}/.config/wire_py/pbwgk.pem")
-folder_path: Path = Path("/tmp/tlecdcwg/")
 PKEYFILE = "/usr/local/etc/ssl/pwgk.pem"
 
 if not keyfile.is_file():
@@ -20,28 +20,28 @@ if not keyfile.is_file():
     check_call(["openssl", "rsa", "-in", PKEYFILE, "-out", keyfile, "-outform", "PEM", "-pubout"])
     shutil.chown(keyfile, 1000, 1000)
 
-    if folder_path.exists():
-        tl = os.listdir(f"{folder_path}")
+    if AppConfig.TEMP_DIR.exists():
+        tl = os.listdir(f"{AppConfig.TEMP_DIR}")
         CPTH: str = f"{keyfile}"
         CRYPTFILES: str = CPTH[:-9]
 
         if keyfile.exists() and len(tl) != 0:
             for tunnels in tl:
-                sourcetl: str = f"{folder_path}/{tunnels}"
+                sourcetl: str = f"{AppConfig.TEMP_DIR}/{tunnels}"
                 tlname: str = f"{CRYPTFILES}{tunnels[:-5]}.dat"
                 check_call(["openssl", "pkeyutl", "-encrypt", "-inkey", keyfile, "-pubin", "-in", sourcetl, "-out",
                             tlname,])
 
 else:
 
-    if folder_path.exists():
-        tl: list[str] = os.listdir(f"{folder_path}")
+    if AppConfig.TEMP_DIR.exists():
+        tl: list[str] = os.listdir(f"{AppConfig.TEMP_DIR}")
         CPTH: str = f"{keyfile}"
         CRYPTFILES: str = CPTH[:-9]
 
         if keyfile.exists() and len(tl) != 0:
             for tunnels in tl:
-                sourcetl: str = f"{folder_path}/{tunnels}"
+                sourcetl: str = f"{AppConfig.TEMP_DIR}/{tunnels}"
                 tlname: str = f"{CRYPTFILES}{tunnels[:-5]}.dat"
                 check_call(["openssl", "pkeyutl", "-encrypt", "-inkey", keyfile, "-pubin", "-in", sourcetl, "-out",
                             tlname])

start_wg.py

@@ -7,11 +7,8 @@ from subprocess import check_call
 
 path_to_file = Path(Path.home() / ".config/wire_py/settings")
 
-with open(path_to_file, "r", encoding="utf-8") as a_con:
-
-    # This function is for the independent autostarted of the previously selected tunnel
-    lines = a_con.readlines()
-    a_con = lines[7].strip()
+a_con = Path(path_to_file).read_text(encoding="utf-8").splitlines(keepends=True)
+a_con = a_con[7].strip()
 if a_con != "off":
     check_call(["nmcli", "connection", "up", a_con])
 else:

wirepy.py

@@ -15,73 +15,53 @@ from subprocess import check_call
 from tkinter import TclError, filedialog, ttk
 
 from cls_mth_fc import (Create, GiteaUpdate, Tooltip, Tunnel, LxTools)
+from wp_app_config import AppConfig, Msg
 
 LxTools.uos()
 Create.dir_and_files()
 Create.make_dir()
 Create.decrypt()
  
-tcl_path: Path = Path("/usr/share/TK-Themes")
-set_file: Path = Path(Path.home() / ".config/wire_py/settings")
-tips = LxTools.if_tip(set_file)
-folder_path: Path = Path("/tmp/tlecdcwg/")
-user_file = Path("/tmp/.log_user")
+tips = LxTools.if_tip(AppConfig.SETTINGS_FILE)
 
 # 1 = 1. Year, 09 = Month of the Year, 2924 = Day and Year of the Year
 VERSION: str = "v. 2.04.1725"
 
-res = GiteaUpdate.api_down("https://git.ilunix.de/api/v1/repos/punix/Wire-Py/releases", VERSION, set_file)
+res = GiteaUpdate.api_down("https://git.ilunix.de/api/v1/repos/punix/Wire-Py/releases", VERSION, AppConfig.SETTINGS_FILE)
 
 # Translate
-APP = "wirepy"
-LOCALE_DIR = "/usr/share/locale/"
-locale.bindtextdomain(APP, LOCALE_DIR)
-gettext.bindtextdomain(APP, LOCALE_DIR)
-gettext.textdomain(APP)
-_ = gettext.gettext
+_ = AppConfig.setup_translations()
 
 img_w: str = r"/usr/share/icons/lx-icons/64/info.png"
 img_i: str = r"/usr/share/icons/lx-icons/48/wg_vpn.png"
 img_w2: str = r"/usr/share/icons/lx-icons/64/error.png"
 img_i2: str = r"/usr/share/icons/lx-icons/48/wg_msg.png"
-sl: str = _("Select tunnel")
-rnp: str = _("Renaming not possible")
-ie:str = _("Import Error")
-pfit: str = _("Please first import tunnel")
-pstl: str = _("Please select a tunnel from the list")
 
-LxTools.sigi(folder_path, user_file)
+LxTools.sigi(AppConfig.TEMP_DIR, AppConfig.USER_FILE)
 
 class Wirepy(tk.Tk):
     """
     Class Wirepy this is the Main Window of wirepy
     """
-
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
 
         self.my_tool_tip = None
-        self.x_width = 600
-        self.y_height = 383
+        self.x_width = AppConfig.UI_CONFIG["window_size"][0]
+        self.y_height = AppConfig.UI_CONFIG["window_size"][1]
         self.monitor_center_x = int(self.winfo_screenwidth() / 2 - (self.x_width / 2))
         self.monitor_center_y = int(self.winfo_screenheight() / 2 - (self.y_height / 2))
-        self.resizable(width=False, height=False)
-        self.title("Wire-Py")
+        self.resizable(AppConfig.UI_CONFIG["resizable_window"][0], AppConfig.UI_CONFIG["resizable_window"][1])
+        self.title(AppConfig.UI_CONFIG["window_title"])
         self.geometry(f"{self.x_width}x{self.y_height}+{self.monitor_center_x}+{self.monitor_center_y}")
         self.columnconfigure(0, weight=1)
         self.rowconfigure(0, weight=1)
-
         self.style = ttk.Style(self)
-        self.tk.call("source", f"{tcl_path}/water.tcl")
-        with open(set_file, "r", encoding="utf-8") as read_file:
-            lines = read_file.readlines()
-            if "light\n" in lines:
-                self.tk.call("set_theme", "light")
-            else:
-                self.tk.call("set_theme", "dark")
+        self.tk.call("source", f"{AppConfig.SYSTEM_PATHS["tcl_path"]}/water.tcl")
+        LxTools.theme_change(self)
 
         # Load the image file from the disk
-        self.wg_icon = tk.PhotoImage(file=r"/usr/share/icons/lx-icons/48/wg_vpn.png")
+        self.wg_icon = tk.PhotoImage(file=AppConfig.IMAGE_PATHS["icon_vpn"])
 
         # Set it as the window icon
         self.iconphoto(True, self.wg_icon)
@@ -93,7 +73,6 @@ class FrameWidgets(ttk.Frame):
     """
     ttk frame class for better structure
     """
-
     def __init__(self, container, **kwargs):
         super().__init__(container, **kwargs)
 
@@ -103,85 +82,12 @@ class FrameWidgets(ttk.Frame):
         self.dns = None
         self.address = None
         self.auto_con = None
-        self.wg_vpn_start = tk.PhotoImage(file=r"/usr/share/icons/lx-icons/48/wg_vpn-start.png")
-        self.wg_vpn_stop = tk.PhotoImage(file=r"/usr/share/icons/lx-icons/48/wg_vpn-stop.png")
-        self.imp_pic = tk.PhotoImage(file=r"/usr/share/icons/lx-icons/48/wg_import.png")
-        self.tr_pic = tk.PhotoImage(file=r"/usr/share/icons/lx-icons/48/wg_trash.png")
-        self.exp_pic = tk.PhotoImage(file=r"/usr/share/icons/lx-icons/48/wg_export.png")
-        self.warning_pic = tk.PhotoImage(file=r"/usr/share/icons/lx-icons/64/error.png")
-
-        def update():
-            """
-            Set on or off in file
-            """
-            if set_update.get() == 1:
-                with open(set_file, "r", encoding="utf-8") as set_f2:
-                    lines2 = set_f2.readlines()
-                    lines2[1] = "off\n"
-                with open(set_file, "w", encoding="utf-8") as set_f2:
-                    set_f2.writelines(lines2)
-
-            if set_update.get() == 0:
-                with open(set_file, "r", encoding="utf-8") as set_f2:
-                    lines2 = set_f2.readlines()
-                    lines2[1] = "on\n"
-                with open(set_file, "w", encoding="utf-8") as set_f2:
-                    set_f2.writelines(lines2)
-
-        def theme_change_light():
-            """
-            Set a light theme
-            """
-            if self.tk.call("ttk::style", "theme", "use") == "water-dark":
-                self.tk.call("set_theme", "light")
-                with open(set_file, "r", encoding="utf-8") as theme_set2:
-                    lines3 = theme_set2.readlines()
-                    lines3[3] = "light\n"
-                with open(set_file, "w", encoding="utf-8") as theme_set2:
-                    theme_set2.writelines(lines3)
-                self.color_label()
-
-        def theme_change_dark():
-            """
-            Set a dark theme
-            """
-            if not self.tk.call("ttk::style", "theme", "use") == "water-dark":
-                self.tk.call("set_theme", "dark")
-                with open(set_file, "r", encoding="utf-8") as theme_set2:
-                    lines4 = theme_set2.readlines()
-                    lines4[3] = "dark\n"
-                with open(set_file, "w", encoding="utf-8") as theme_set2:
-                    theme_set2.writelines(lines4)
-                self.color_label()
-
-        def tooltip():
-            """
-            Set True or False in a file
-            """
-            if set_tip.get():
-                with open(set_file, "r", encoding="utf-8") as set_f2:
-                    lines2 = set_f2.readlines()
-                    lines2[5] = "False\n"
-                with open(set_file, "w", encoding="utf-8") as set_f2:
-                    set_f2.writelines(lines2)
-
-            else:
-                with open(set_file, "r", encoding="utf-8") as set_f2:
-                    lines2 = set_f2.readlines()
-                    lines2[5] = "True\n"
-                with open(set_file, "w", encoding="utf-8") as set_f2:
-                    set_f2.writelines(lines2)
-
-        def info():
-            def link_btn():
-                webbrowser.open("https://git.ilunix.de/punix/Wire-Py")
-
-            msg_t = _("Wire-Py a simple Wireguard Gui for Linux systems.\n\n"
-                    "Wire-Py is open source software written in Python.\n\n"
-                    "Email: polunga40@unity-mail.de also likes for donation.\n\n"
-                    "Use without warranty!\n")
-
-            LxTools.msg_window(img_i, img_i, _("Info"), msg_t, _("Go to Wire-Py git"), link_btn)
+        self.wg_vpn_start = tk.PhotoImage(file=AppConfig.IMAGE_PATHS["icon_start"])
+        self.wg_vpn_stop = tk.PhotoImage(file=AppConfig.IMAGE_PATHS["icon_stop"])
+        self.imp_pic = tk.PhotoImage(file=AppConfig.IMAGE_PATHS["icon_import"])
+        self.tr_pic = tk.PhotoImage(file=AppConfig.IMAGE_PATHS["icon_trash"])
+        self.exp_pic = tk.PhotoImage(file=AppConfig.IMAGE_PATHS["icon_export"])
+        self.warning_pic = tk.PhotoImage(file=AppConfig.IMAGE_PATHS["icon_error"])
 
         # Frame for Menu
         self.menu_frame = ttk.Frame(self)
@@ -204,15 +110,16 @@ class FrameWidgets(ttk.Frame):
         set_tip = tk.BooleanVar()
         self.settings = tk.Menu(self, relief="flat")
         self.options_btn.configure(menu=self.settings, style="Toolbutton")
-        self.settings.add_checkbutton(label=_("Disable Updates"), command=update, variable=set_update)
-        self.settings.add_checkbutton(label=_("Disable Tooltips"), command=tooltip, variable=set_tip)
-        self.settings.add_command(label=_("Light"), command=theme_change_light)
-        self.settings.add_command(label=_("Dark"), command=theme_change_dark)
+        self.settings.add_checkbutton(label=_("Disable Updates"),
+                                      command=lambda: self.update_setting(set_update.get()), variable=set_update)
+        self.settings.add_checkbutton(label=_("Disable Tooltips"),
+                                      command=lambda: self.tooltip(set_tip.get()), variable=set_tip)
+        self.settings.add_command(label=_("Light"), command=self.theme_change_light)
+        self.settings.add_command(label=_("Dark"), command=self.theme_change_dark)
 
         # About BTN Menu / Label
         self.about_btn = ttk.Button(
-            self.menu_frame, text=_("About"), style="Toolbutton", command=info
-        )
+        self.menu_frame, text=_("About"), style="Toolbutton", command=self.about)
         self.about_btn.grid(column=2, columnspan=2, row=0)
         self.readme = tk.Menu(self)
 
@@ -306,23 +213,12 @@ class FrameWidgets(ttk.Frame):
         self.peer.config(font=("Ubuntu", 9))
         self.peer.grid(column=0, row=4, sticky="we", padx=130)
 
-        def enable_check_box(_):
-            """
-            checkbox for enable autostart Tunnel
-            """
-            Create.files_for_autostart()
-            if self.l_box.size() != 0:
-                self.wg_autostart.configure(state="normal")
-                self.lb_rename.config(state="normal")
-                self.lb_rename.delete(0, tk.END)
-                self.btn_rename.config(state="normal")
-
         # Listbox with Scrollbar
         self.l_box = tk.Listbox(self.lb_frame_btn_lbox, selectmode="single")
         self.l_box.config(relief="ridge", font=("Ubuntu", 12, "bold"))
         self.l_box.grid(column=1, rowspan=4, row=0, sticky="ns")
         self.l_box.event_add("<<ClickEvent>>", "<Button-1>")
-        self.l_box.bind("<<ClickEvent>>", enable_check_box)
+        self.l_box.bind("<<ClickEvent>>", self.enable_check_box)
         self.scrollbar = ttk.Scrollbar(self.lb_frame_btn_lbox, orient="vertical", command=self.l_box.yview)
         self.scrollbar.grid(column=1, rowspan=4, row=0, sticky="nse")
         self.l_box.configure(yscrollcommand=self.scrollbar.set)
@@ -336,13 +232,7 @@ class FrameWidgets(ttk.Frame):
         # Button Vpn
         if self.a != "":
             self.stop()
-            wg_read = f"/tmp/tlecdcwg/{self.a}.conf"
-            with open(wg_read, "r", encoding="utf-8") as file:
-                data = Tunnel.con_to_dict(file)
-
-            # Address Label
-            self.init_and_report(data)
-            self.show_data()
+            data = self.handle_tunnel_data(self.a)
         else:
             self.start()
 
@@ -350,7 +240,7 @@ class FrameWidgets(ttk.Frame):
             self.add = tk.StringVar()
             self.DNS = tk.StringVar()
             self.enp = tk.StringVar()
-            self.label_empty()
+            self.reset_fields()
             self.show_data()
 
         # Button Import
@@ -359,7 +249,151 @@ class FrameWidgets(ttk.Frame):
 
         Tooltip(self.btn_i, _("Click to import a Wireguard Tunnel"), tips)
 
-        def delete():
+        # Button Trash
+        self.btn_tr = ttk.Button(self.lb_frame_btn_lbox, image=self.tr_pic, command=self.delete, padding=0,
+                                 style="CButton.TButton")
+        self.btn_tr.grid(column=0, row=2, padx=15, pady=8)
+
+        if self.l_box.size() == 0:
+            Tooltip(self.btn_tr, _("No tunnels to delete in the list"), tips)
+        else:
+            Tooltip(self.btn_tr, _("Click to delete a Wireguard Tunnel\nSelect from the list!"), tips)
+
+        # Button Export
+        self.btn_exp = ttk.Button(self.lb_frame_btn_lbox, image=self.exp_pic,
+                                  command=lambda: Tunnel.export(img_w, img_i, img_w2, img_i2,
+                                  Msg.STR["sel_tl"], Msg.STR["tl_first"]), padding=0)
+        self.btn_exp.grid(column=0, row=3, padx=15, pady=8)
+
+        if self.l_box.size() == 0:
+            Tooltip(self.btn_exp, _("No Tunnels in List for Export"), tips)
+        else:
+            Tooltip(self.btn_exp, _("Click to export all\nWireguard Tunnel to Zipfile"), tips)
+
+        # Label Entry
+        self.lb_rename = ttk.Entry(self.lb_frame4, width=20)
+        self.lb_rename.grid(column=2, row=0, padx=8, pady=10, sticky="ne")
+        self.lb_rename.insert(0, _("Max. 12 characters!"))
+        self.lb_rename.config(state="disable")
+
+        if self.l_box.size() != 0:
+            Tooltip(self.lb_rename, _("To rename a tunnel, you need to\nselect a tunnel from the list"), tips)
+        else:
+            Tooltip(self.lb_rename, _("To rename a tunnel, at least one must be in the list"), tips)
+
+        # Button Rename
+        self.btn_rename = ttk.Button(self.lb_frame4, text=_("Rename"), state="disable", command=self.tl_rename,
+                                     padding=4, style="RnButton.TButton")
+        self.btn_rename.grid(column=3, row=0, padx=5, pady=10, sticky="ne")
+
+        # Check Buttons
+        self.selected_option = tk.IntVar()
+        self.autoconnect_var = tk.StringVar()
+        self.autoconnect_var.set(f"{self.auto_con}")
+
+        # Frame for Labels, Entry and Button
+        self.autoconnect = ttk.Label(self.lb_frame3, textvariable=self.autoconnect_var, width=15)
+        self.autoconnect.config(font=("Ubuntu", 11))
+        self.autoconnect.grid(column=1, row=0, sticky="e", pady=19)
+        self.wg_autostart = ttk.Checkbutton(self.lb_frame3, text=_("Autoconnect on:"), variable=self.selected_option,
+                                            command=self.box_set)
+        self.wg_autostart.grid(column=0, row=0, pady=15, padx=15, sticky="nw")
+
+        if self.l_box.size() >= 1 and len(self.l_box.curselection()) >= 1:
+            Tooltip(self.wg_autostart, Msg.TTIP["autostart"], tips)
+
+        if self.l_box.size() == 0:
+            Tooltip(self.wg_autostart, Msg.TTIP["autostart_info"], tips)
+
+        else:
+
+            Tooltip(self.wg_autostart, Msg.TTIP["autostart"], tips)
+
+        self.on_off()
+
+    @staticmethod
+    def about() -> None:
+        """
+        a tk.Toplevel window
+        """
+        def link_btn() -> str | None:
+            webbrowser.open("https://git.ilunix.de/punix/Wire-Py")
+
+        msg_t = _("Wire-Py a simple Wireguard Gui for Linux systems.\n\n"
+                "Wire-Py is open source software written in Python.\n\n"
+                "Email: polunga40@unity-mail.de also likes for donation.\n\n"
+                "Use without warranty!\n")
+
+        LxTools.msg_window(img_i, img_i, _("Info"), msg_t, _("Go to Wire-Py git"), link_btn)
+
+    def theme_change_light(self) -> None:
+        """
+        Set a light theme
+        """
+        if self.tk.call("ttk::style", "theme", "use") == "water-dark":
+            self.tk.call("set_theme", "light")
+            lines = Path(AppConfig.SETTINGS_FILE).read_text(encoding="utf-8").splitlines(keepends=True)  # (keepends=True) = not changed
+            lines[3] = 'light\n' 
+            Path(AppConfig.SETTINGS_FILE).write_text(''.join(lines), encoding="utf-8")
+            self.color_label()
+
+    def theme_change_dark(self) -> None:
+        """
+        Set a dark theme
+        """
+        if not self.tk.call("ttk::style", "theme", "use") == "water-dark":
+            self.tk.call("set_theme", "dark")
+            lines = Path(AppConfig.SETTINGS_FILE).read_text(encoding="utf-8").splitlines(keepends=True)
+            lines[3] = 'dark\n' 
+            Path(AppConfig.SETTINGS_FILE).write_text(''.join(lines), encoding="utf-8")
+            self.color_label()
+
+    @staticmethod
+    def update_setting(update_res) -> None:
+        """
+        write off or on in file
+        Args:
+            update_res (int): argument that is passed contains 0 or 1
+        """
+        if update_res == 1:
+            lines = Path(AppConfig.SETTINGS_FILE).read_text(encoding="utf-8").splitlines(keepends=True)
+            lines[1] = 'off\n' 
+            Path(AppConfig.SETTINGS_FILE).write_text(''.join(lines), encoding="utf-8")
+
+        else:
+            lines = Path(AppConfig.SETTINGS_FILE).read_text(encoding="utf-8").splitlines(keepends=True)
+            lines[1] = 'on\n' 
+            Path(AppConfig.SETTINGS_FILE).write_text(''.join(lines), encoding="utf-8")
+
+    @staticmethod
+    def tooltip(tip) -> None:
+        """
+        write True or False in a file
+        Args:
+            tip (bool): argument that is passed contains True or False
+        """
+        if tip:
+            lines = Path(AppConfig.SETTINGS_FILE).read_text(encoding="utf-8").splitlines(keepends=True)
+            lines[5] = 'False\n' 
+            Path(AppConfig.SETTINGS_FILE).write_text(''.join(lines), encoding="utf-8")
+
+        else:
+            lines = Path(AppConfig.SETTINGS_FILE).read_text(encoding="utf-8").splitlines(keepends=True)
+            lines[5] = 'True\n' 
+            Path(AppConfig.SETTINGS_FILE).write_text(''.join(lines), encoding="utf-8")
+
+    def enable_check_box(self, _) -> None:
+        """
+        checkbox for enable autostart Tunnel
+        """
+        Create.files_for_autostart()
+        if self.l_box.size() != 0:
+            self.wg_autostart.configure(state="normal")
+            self.lb_rename.config(state="normal")
+            self.lb_rename.delete(0, tk.END)
+            self.btn_rename.config(state="normal")
+                
+    def delete(self) -> None:
         """
         delete Wireguard Tunnel
         """
@@ -371,14 +405,12 @@ class FrameWidgets(ttk.Frame):
                 pre_key = key[3]
             check_call(["nmcli", "connection", "delete", select_tl])
             self.l_box.delete(self.select_tunnel[0])
-                with open(set_file, "r", encoding="utf-8") as set_f6:
+            with open(AppConfig.SETTINGS_FILE, "r", encoding="utf-8") as set_f6:
                 lines6 = set_f6.readlines()
-                    if (
-                            select_tl == lines6[7].strip()
-                            and "off\n" not in lines6[7].strip()
-                    ):
+                if (select_tl == lines6[7].strip()
+                    and "off\n" not in lines6[7].strip()):
                     lines6[7] = "off\n"
-                        with open(set_file, "w", encoding="utf-8") as set_f7:
+                    with open(AppConfig.SETTINGS_FILE, "w", encoding="utf-8") as set_f7:
                         set_f7.writelines(lines6)
                     self.selected_option.set(0)
                     self.autoconnect_var.set(_("no Autoconnect"))
@@ -386,7 +418,7 @@ class FrameWidgets(ttk.Frame):
             if is_encrypt.is_file():
                 Path.unlink(f"{Path.home()}/.config/wire_py/{select_tl}.dat")
             Path.unlink(f"/tmp/tlecdcwg/{select_tl}.conf")
-                with open(f"{Path.home()}/.config/wire_py/keys", "r", encoding="utf-8") as readfile:
+            with open(AppConfig.KEYS_FILE, "r", encoding="utf-8") as readfile:
                 with open(f"{Path.home()}/.config/wire_py/keys2", "w", encoding="utf-8") as writefile:
                     for line in readfile:
                         if pre_key not in line.strip("\n"):
@@ -412,69 +444,40 @@ class FrameWidgets(ttk.Frame):
                 self.str_var.set(value="")
                 self.start()
                 self.l_box.update()
-
-                    # Address Label
-                    self.add.set("")
-                    self.DNS.set("")
-                    self.enp.set("")
+                self.reset_fields()
 
         except IndexError:
 
             if self.l_box.size() != 0:
 
-                    LxTools.msg_window(img_w, img_i2, sl, pstl)
+                LxTools.msg_window(img_w, img_i2, Msg.STR["sel_tl"], Msg.STR["sel_list"])
 
             else:
 
-                    LxTools.msg_window(img_w, img_i2, sl, pfit)
-
-        # Button Trash
-        self.btn_tr = ttk.Button(self.lb_frame_btn_lbox, image=self.tr_pic, command=delete, padding=0,
-                                 style="CButton.TButton")
-        self.btn_tr.grid(column=0, row=2, padx=15, pady=8)
-
-        if self.l_box.size() == 0:
-            Tooltip(self.btn_tr, _("No tunnels to delete in the list"), tips)
-        else:
-            Tooltip(self.btn_tr, _("Click to delete a Wireguard Tunnel\nSelect from the list!"), tips)
-
-        # Button Export
-        self.btn_exp = ttk.Button(self.lb_frame_btn_lbox, image=self.exp_pic,
-                                  command=lambda: Tunnel.export(img_w, img_i, img_w2, img_i2, sl, pfit), padding=0)
-        self.btn_exp.grid(column=0, row=3, padx=15, pady=8)
-
-        if self.l_box.size() == 0:
-            Tooltip(self.btn_exp, _("No Tunnels in List for Export"), tips)
-        else:
-            Tooltip(self.btn_exp, _("Click to export all\nWireguard Tunnel to Zipfile"), tips)
-
-        # Label Entry
-        self.lb_rename = ttk.Entry(self.lb_frame4, width=20)
-        self.lb_rename.grid(column=2, row=0, padx=8, pady=10, sticky="ne")
-        self.lb_rename.insert(0, _("Max. 12 characters!"))
-        self.lb_rename.config(state="disable")
-
-        if self.l_box.size() != 0:
-            Tooltip(self.lb_rename, _("To rename a tunnel, you need to\nselect a tunnel from the list"), tips)
-        else:
-            Tooltip(self.lb_rename, _("To rename a tunnel, at least one must be in the list"), tips)
-
-        def tl_rename():
+                LxTools.msg_window(img_w, img_i2, Msg.STR["sel_tl"], Msg.STR["tl_first"])
 
+    def tl_rename(self) -> None:
+        """
+        method to rename a tunnel
+        """
+        name_of_file = LxTools.get_file_name(AppConfig.TEMP_DIR)
         special_characters = ["\\", "/", "{", "}", " "]
 
         if len(self.lb_rename.get()) > 12:
 
-                LxTools.msg_window(img_w, img_i2, rnp, _("The new name may contain only 12 characters"))
+            LxTools.msg_window(img_w, img_i2, Msg.STR["ren_err"], Msg.STR["sign_len"])
 
         elif len(self.lb_rename.get()) == 0:
 
-                LxTools.msg_window(img_w, img_i2, rnp, _("At least one character must be entered"))
+            LxTools.msg_window(img_w, img_i2, Msg.STR["ren_err"], Msg.STR["zero_signs"])
 
         elif any(ch in special_characters for ch in self.lb_rename.get()):
 
-                msg_t = _("No valid sign. These must not be used.\nBlank, Slash, Backslash and { }\n")
-                LxTools.msg_window(img_w, img_i2, rnp, msg_t)
+            LxTools.msg_window(img_w, img_i2, Msg.STR["ren_err"], Msg.STR["false_signs"])
+
+        elif self.lb_rename.get() in name_of_file:
+
+            LxTools.msg_window(img_w, img_i2, Msg.STR["ren_err"], Msg.STR["is_in_use"])
 
         else:
 
@@ -483,7 +486,7 @@ class FrameWidgets(ttk.Frame):
                 select_tl = self.l_box.get(self.select_tunnel[0])
 
                 # nmcli connection modify old connection.id iphone
-                    check_call(["nmcli", "connection", "modify", select_tl, "connection.id", self.lb_rename.get()])
+                subprocess.check_output(["nmcli", "connection", "modify", select_tl, "connection.id", self.lb_rename.get()], text=True)
                 source = Path(f"/tmp/tlecdcwg/{select_tl}.conf")
                 destination = source.with_name(f"{self.lb_rename.get()}.conf")
                 source.replace(destination)
@@ -494,68 +497,31 @@ class FrameWidgets(ttk.Frame):
                 self.l_box.update()
                 new_a_connect = self.lb_rename.get()
                 self.lb_rename.delete(0, tk.END)
-                    if self.a != "" and self.a == select_tl:
-                        self.a = Tunnel.active()
-                        self.str_var.set(value=self.a)
-                        with open(set_file, "r", encoding="utf-8") as set_f5:
+               
+                with open(AppConfig.SETTINGS_FILE, "r", encoding="utf-8") as set_f5:
                     lines5 = set_f5.readlines()
                 if select_tl == lines5[7].strip() and "off\n" not in lines5[7].strip():
                     lines5[7] = new_a_connect
-                            with open(set_file, "w", encoding="utf-8") as theme_set5:
+                    with open(AppConfig.SETTINGS_FILE, "w", encoding="utf-8") as theme_set5:
                         theme_set5.writelines(lines5)
                     self.autoconnect_var.set(value=new_a_connect)
-
+                self.update_connection_display()
                 Create.encrypt()
 
             except IndexError:
 
-                    LxTools.msg_window(img_w, img_i2, rnp, pstl)
+                LxTools.msg_window(img_w, img_i2, Msg.STR["ren_err"], Msg.STR["sel_list"])
 
-        # Button Rename
-        self.btn_rename = ttk.Button(self.lb_frame4, text=_("Rename"), state="disable", command=tl_rename, padding=4,
-                                     style="RnButton.TButton")
-        self.btn_rename.grid(column=3, row=0, padx=5, pady=10, sticky="ne")
+            except subprocess.CalledProcessError:
+                pass
 
-        # Check Buttons
-        self.selected_option = tk.IntVar()
-        self.autoconnect_var = tk.StringVar()
-        self.autoconnect_var.set(self.auto_con)
+            except EOFError as e:
+                print(e)
                   
-        # Frame for Labels, Entry and Button
-        self.autoconnect = ttk.Label(self.lb_frame3, textvariable=self.autoconnect_var, width=15)
-        self.autoconnect.config(font=("Ubuntu", 11))
-        self.autoconnect.grid(column=1, row=0, sticky="e", pady=19)
-        self.wg_autostart = ttk.Checkbutton(self.lb_frame3, text=_("Autoconnect on:"), variable=self.selected_option,
-                                            command=self.box_set)
-        self.wg_autostart.grid(column=0, row=0, pady=15, padx=15, sticky="nw")
-
-        if self.l_box.size() >= 1 and len(self.l_box.curselection()) >= 1:
-            Tooltip(self.wg_autostart, _("To use the autostart, enable this Checkbox"), tips)
-
-        if self.l_box.size() == 0:
-            Tooltip(self.wg_autostart, _("You must have at least one\ntunnel in the list,to use the autostart"), tips)
-
-        else:
-
-            Tooltip(self.wg_autostart, _("To use the autostart, a tunnel must be selected from the list"), tips)
-
-        self.on_off()
-
-    def import_sl(self):
+    def import_sl(self) -> None:
         """
-        Import Methode for Wireguard config Files.
-        Before importing, it is checked whether PrivateKey and PublicKey are in the file.
-        If True, then it is checked whether the PreSharedKey is already in the key file
-        to avoid an import error so that no double wgconf are imported.
-        Thus, tunnels can be renamed without the problems arising.
-        If False, then the key is written into the file.
-        Furthermore, it is checked whether the name is longer than 12 characters.
-        If True, then the name is automatically shortened to 12 characters
-        and then imported.
-        If in each case false comes out, a corresponding window comes to
-        inform the user that something is wrong.
+        validity check of wireguard config files
         """
-
         Create.dir_and_files()
 
         try:
@@ -566,32 +532,29 @@ class FrameWidgets(ttk.Frame):
                 read = file.read()
             path_split = filepath.split("/")
             path_split1 = path_split[-1]
-            self.a = Tunnel.active()
 
             if "PrivateKey = " in read and "PublicKey = " in read and "Endpoint =" in read:
                 with open(filepath, "r", encoding="utf-8") as file:
                     key = Tunnel.con_to_dict(file)
                     pre_key = key[3]
                     if len(pre_key) != 0:
-                        with open(f"{Path.home()}/.config/wire_py/keys", "r", encoding="utf-8") as readfile:
-                            p_key = readfile.readlines()
+                        p_key = AppConfig.KEYS_FILE.read_text(encoding="utf-8")
                         if pre_key in p_key or f"{pre_key}\n" in p_key:
 
-                                msg_t = _("Tunnel already available!\nPlease use another file for import")
-                                LxTools.msg_window(img_w2, img_i2, ie, msg_t)
+                            LxTools.msg_window(img_w2, img_i2, Msg.STR["imp_err"], Msg.STR["tl_exist"])
 
                         else:
 
-                                with open(f"{Path.home()}/.config/wire_py/keys", "a", encoding="utf-8") as keyfile:
+                            with open(AppConfig.KEYS_FILE, "a", encoding="utf-8") as keyfile:
                                 keyfile.write(f"{pre_key}\r")
                                 if len(path_split1) > 17:
-                                        p1 = shutil.copy(filepath, "/tmp/tlecdcwg/")
+                                    p1 = shutil.copy(filepath, AppConfig.TEMP_DIR)
                                     path_split = path_split1[len(path_split1) - 17:]
-                                        os.rename(p1, f"/tmp/tlecdcwg/{path_split}")
-                                        new_conf = f"/tmp/tlecdcwg/{path_split}"
+                                    os.rename(p1, f"{AppConfig.TEMP_DIR}/{path_split}")
+                                    new_conf = f"{AppConfig.TEMP_DIR}/{path_split}"
                                     if self.a != "":
-                                            check_call(["nmcli", "connection", "down", Tunnel.active()])
-                                            self.label_empty()
+                                        check_call(["nmcli", "connection", "down", self.a])
+                                        self.reset_fields()
 
                                     subprocess.check_output(["nmcli", "connection", "import", "type",
                                                                 "wireguard", "file", new_conf], text=True)
@@ -599,10 +562,10 @@ class FrameWidgets(ttk.Frame):
                                     Create.encrypt()
 
                                 else:
-                                        shutil.copy(filepath, "/tmp/tlecdcwg/")
+                                    shutil.copy(filepath, f"{AppConfig.TEMP_DIR}/")
                                     if self.a != "":
-                                            check_call(["nmcli", "connection", "down", Tunnel.active()])
-                                            self.label_empty()
+                                        check_call(["nmcli", "connection", "down", self.a])
+                                        self.reset_fields()
 
                                     subprocess.check_output(["nmcli", "connection", "import", "type",
                                                                 "wireguard", "file", filepath], text=True)
@@ -617,40 +580,27 @@ class FrameWidgets(ttk.Frame):
                                 self.l_box.update()
                                 self.l_box.selection_set(0)
 
-                                    Tooltip(self.wg_autostart, _("To use the autostart, enable this Checkbox"), tips)
+                                Tooltip(self.wg_autostart, Msg.TTIP["autostart"], tips)
 
-                                    # Tooltip(self.l_box, _("List of available tunnels"))
+                                Tooltip(self.btn_tr, Msg.TTIP["trash_tl"], tips)
 
-                                    Tooltip(self.btn_tr, _("Click to delete a Wireguard Tunnel\nSelect from the list!")
-                                            , tips,)
+                                Tooltip(self.btn_exp, Msg.TTIP["export_tl"], tips)
 
-                                    Tooltip(self.btn_exp, _("         Click to export all\nWireguard Tunnel to Zipfile")
-                                            , tips)
-
-                                    Tooltip(self.btn_rename, _("To rename a tunnel, you need to\nselect a tunnel from"
-                                                               " the list"), tips)
+                                Tooltip(self.btn_rename, Msg.TTIP["rename_tl"], tips)
 
                                 self.lb_rename.insert(0, "Max. 12 characters!")
                                 self.str_var = tk.StringVar()
                                 self.str_var.set(self.a)
                                 self.color_label()
                                 self.stop()
-                                    wg_read = f"/tmp/tlecdcwg/{self.a}.conf"
-                                    with open(wg_read, "r", encoding="utf-8") as file_for_key:
-                                        data = Tunnel.con_to_dict(file_for_key)
-
-                                    # Address Label
-                                    self.init_and_report(data)
-                                    self.show_data()
+                                data = self.handle_tunnel_data(self.a)
                                 check_call(["nmcli", "con", "mod", self.a, "connection.autoconnect", "no"])
-                                    Path.chmod(wg_read, 0o600)
 
             if ("PrivateKey = " in read) and ("Endpoint = " in read):
                 pass
             else:
 
-                msg_t = _("Oh... no valid Wireguard File!\nPlease select a valid Wireguard File")
-                LxTools.msg_window(img_w2, img_i2, ie, msg_t)
+                LxTools.msg_window(img_w2, img_i2, Msg.STR["imp_err"], Msg.STR["no_valid_file"])
 
         except EOFError as e:
             print(e)
@@ -661,9 +611,25 @@ class FrameWidgets(ttk.Frame):
         except subprocess.CalledProcessError:
             print("Tunnel exist!")
 
-    def box_set(self):
+    def handle_tunnel_data(self, tunnel_name: str) -> tuple[str, str, str, str | None]:
+        """_summary_
+
+        Args:
+            tunnel_name (str): name of a tunnel
+
+        Returns:
+            tuple[str, str]: tuple with tunnel data
         """
-        This Method will display the autostart label which
+        wg_read = f"/tmp/tlecdcwg/{tunnel_name}.conf"
+        with open(wg_read, "r", encoding="utf-8") as file:
+            data = Tunnel.con_to_dict(file)
+            self.init_and_report(data)
+            self.show_data()
+            return data
+
+    def box_set(self) -> None:
+        """
+        This Method will display the autostarted label which
         Tunnel is automatically started regardless of the active tunnel.
         The selected tunnel is written into a file to read it after the start of the system.
         """
@@ -672,11 +638,9 @@ class FrameWidgets(ttk.Frame):
             select_tl = self.l_box.get(select_tunnel[0])
 
             if self.selected_option.get() == 0:
-                with open(set_file, "r", encoding="utf-8") as set_f3:
-                    lines3 = set_f3.readlines()
-                    lines3[7] = "off\n"
-                with open(set_file, "w", encoding="utf-8") as set_f3:
-                    set_f3.writelines(lines3)
+                lines = Path(AppConfig.SETTINGS_FILE).read_text(encoding="utf-8").splitlines(keepends=True)
+                lines[7] = 'off\n' 
+                Path(AppConfig.SETTINGS_FILE).write_text(''.join(lines), encoding="utf-8")
 
                 tl = Tunnel.list()
 
@@ -684,31 +648,28 @@ class FrameWidgets(ttk.Frame):
                     self.wg_autostart.configure(state="disabled")
 
             if self.selected_option.get() >= 1:
-                with open(set_file, "r", encoding="utf-8") as set_f3:
-                    lines3 = set_f3.readlines()
-                    lines3[7] = select_tl
-                with open(set_file, "w", encoding="utf-8") as set_f3:
-                    set_f3.writelines(lines3)
+                lines = Path(AppConfig.SETTINGS_FILE).read_text(encoding="utf-8").splitlines(keepends=True)
+                lines[7] = select_tl
+                Path(AppConfig.SETTINGS_FILE).write_text(''.join(lines), encoding="utf-8")
 
         except IndexError:
             self.selected_option.set(1)
 
         self.on_off()
 
-    def on_off(self):
+    def on_off(self) -> None:
         """
         Here it is checked whether the path to the file is there, if not, it is created.
         Set (on), the selected tunnel is displayed in the label.
         At (off) the label is first emptied then filled with No Autoconnect
         """
-        with open(set_file, "r", encoding="utf-8") as set_f4:
-            lines4 = set_f4.readlines()
+        lines = Path(AppConfig.SETTINGS_FILE).read_text(encoding="utf-8").splitlines(keepends=True)
 
-        if lines4[7] != "off\n":
-            print(f"{lines4[7]} starts automatically when the system starts.")
+        if lines[7] != "off\n":
+            print(f"{lines[7]} starts automatically when the system starts.")
             self.selected_option.set(1)
             self.autoconnect_var.set("")
-            self.auto_con = lines4[7]
+            self.auto_con = lines[7]
 
         else:
             self.selected_option.set(0)
@@ -722,12 +683,11 @@ class FrameWidgets(ttk.Frame):
         self.autoconnect.config(font=("Ubuntu", 11))
         self.autoconnect.grid(column=1, row=0, sticky="e", pady=19)
 
-    def init_and_report(self, data=None):
+    def init_and_report(self, data=None) -> None:
         """
         Displays the value address, DNS and peer in the labels
         or empty it again
         """
-
         # Address Label
         self.add = tk.StringVar()
         self.add.set(f"{_("Address:    ")}{data[0]}")
@@ -736,19 +696,18 @@ class FrameWidgets(ttk.Frame):
         self.enp = tk.StringVar()
         self.enp.set(f"{_("Endpoint:    ")}{data[2]}")
 
-    def label_empty(self):
+    def reset_fields(self) -> None:
         """
-        empty labels
+        reset data from labels
         """
-        self.add.set("")
-        self.DNS.set("")
-        self.enp.set("")
+        fields = [self.add, self.DNS, self.enp]
+        for field in fields:
+            field.set("")
 
-    def show_data(self):
+    def show_data(self) -> None:
         """
         shows data in the label
         """
-
         # Address Label
         self.address = ttk.Label(self.lb_frame, textvariable=self.add, foreground="#0071ff")
         self.address.grid(column=0, row=5, sticky="w", padx=10, pady=6)
@@ -764,35 +723,35 @@ class FrameWidgets(ttk.Frame):
         self.endpoint.grid(column=0, row=8, sticky="w", padx=10, pady=20)
         self.endpoint.config(font=("Ubuntu", 9))
 
-    def stop(self):
+    def stop(self) -> None:
         """
         Stop Button
         """
-        self.btn_stst = ttk.Button(self.lb_frame_btn_lbox, image=self.wg_vpn_stop, command=self.wg_switch, padding=0)
+        self.btn_stst = ttk.Button(self.lb_frame_btn_lbox, image=self.wg_vpn_stop, 
+                                   command=lambda: self.wg_switch("stop"), padding=0)
         self.btn_stst.grid(column=0, row=0, padx=5, pady=8)
 
-        Tooltip(self.btn_stst, _("Click to stop selected Wireguard Tunnel"), tips)
+        Tooltip(self.btn_stst, Msg.TTIP["stop_tl"], tips)
 
-    def start(self):
+    def start(self) -> None:
         """
         Start Button
         """
-        self.btn_stst = ttk.Button(self.lb_frame_btn_lbox, image=self.wg_vpn_start, command=self.wg_switch, padding=0)
+        self.btn_stst = ttk.Button(self.lb_frame_btn_lbox, image=self.wg_vpn_start, 
+                                   command=lambda: self.wg_switch("start"), padding=0)
         self.btn_stst.grid(column=0, row=0, padx=5, pady=8)
 
         tl = Tunnel.list()
         if len(tl) == 0:
-            Tooltip(self.btn_stst, _("No tunnels to start in the list"), tips)
+            Tooltip(self.btn_stst, Msg.TTIP["empty_list"], tips)
         else:
-            Tooltip(self.btn_stst, _("Click to start selected Wireguard Tunnel"), tips)
+            Tooltip(self.btn_stst, Msg.TTIP["start_tl"], tips)
 
-    def color_label(self):
+    def color_label(self) -> None:
         """
         View activ Tunnel in the color green or yellow
         """
-
-        with open(set_file, "r", encoding="utf-8") as read_file:
-            lines = read_file.readlines()
+        lines = AppConfig.SETTINGS_FILE.read_text()
         if "light\n" in lines:
             self.lb_tunnel = ttk.Label(self, textvariable=self.str_var, foreground="green")
 
@@ -802,60 +761,75 @@ class FrameWidgets(ttk.Frame):
         self.lb_tunnel.config(font=("Ubuntu", 11, "bold"))
         self.lb_tunnel.grid(column=2, padx=10, row=1)
 
-    def wg_switch(self):
+    def wg_switch(self, event=None) -> None:
         """
-        switch Tunnel method change from labels and buttons
+        Deals with switching the VPN connection
         """
-        self.a = Tunnel.active()
         try:
             if self.a == "":
-
-                self.start()
                 self.select_tunnel = self.l_box.curselection()
                 select_tl = self.l_box.get(self.select_tunnel[0])
-                check_call(["nmcli", "connection", "up", select_tl])
-                wg_read = f"/tmp/tlecdcwg/{select_tl}.conf"
-                with open(wg_read, "r", encoding="utf-8") as file:
-                    data = Tunnel.con_to_dict(file)
+                self.handle_connection_state("start", select_tl)
 
-                # Address Label
-                self.init_and_report(data)
-                self.show_data()
+            else:
                 
-                # Button Start/Stop
-                self.stop()
-                self.a = Tunnel.active()
-                self.str_var = tk.StringVar()
-                self.str_var.set(self.a)
-                self.color_label()
+                data = self.handle_tunnel_data(self.a)
+                if data:
 
-            elif self.a != "":
-
-                # Button Start/Stop
-                self.stop()
-                check_call(["nmcli", "connection", "down", self.a])
-
-                # Button Start/Stop
-                self.start()
-                self.a = Tunnel.active()
-                self.str_var.set("")
-                self.color_label()
-
-                # Address Label
-                self.add.set("")
-                self.DNS.set("")
-                self.enp.set("")
-                self.show_data()
+                    self.handle_connection_state("stop")
 
         except IndexError:
 
             if self.l_box.size() != 0:
 
-                LxTools.msg_window(img_w, img_i2, sl, pstl)
+                LxTools.msg_window(img_w, img_i2, Msg.STR["sel_tl"], Msg.STR["sel_list"])
 
             else:
 
-                LxTools.msg_window(img_w, img_i2, sl, pfit)
+                LxTools.msg_window(img_w, img_i2, Msg.STR["sel_tl"], Msg.STR["tl_first"])
+
+    def handle_connection_state(self, action: str, tunnel_name: str = None) -> None:
+        """
+        central management for connection states
+
+        Args:
+            action (str): "start", "stop" or "toggle"
+            tunnel_name (str, optional): name of a tunnel for a start-option. defaults to None.
+        """
+        if action == "stop":
+            if self.a:
+                check_call(["nmcli", "connection", "down", self.a])
+                self.update_connection_display()
+                self.reset_fields()
+                self.start()
+
+        elif action == "start":
+            if tunnel_name or self.a:
+                target_tunnel = tunnel_name or self.a
+                check_call(["nmcli", "connection", "up", target_tunnel])
+                self.update_connection_display()
+                data = self.handle_tunnel_data(self.a)
+                self.init_and_report(data)
+                self.show_data()
+                self.color_label()
+                self.stop()
+
+        elif action == "toggle":
+            if self.a:
+                self.handle_connection_state("stop")
+            else:
+                self.handle_connection_state("start")
+
+    def update_connection_display(self) -> None:
+        """
+        Updated the display after connection changes
+        """
+        self.a = Tunnel.active()
+        if not hasattr(self, "str_var"):
+            self.str_var = tk.StringVar()
+        self.str_var.set(self.a)
+        self.color_label()
+        self.show_data()
 
 
 if __name__ == "__main__":
@@ -871,5 +845,5 @@ if __name__ == "__main__":
     window.tk.call("set", "::tk::dialog::file::showHiddenVar", "0")
     window.mainloop()
 
-LxTools.clean_files(folder_path, user_file)
+LxTools.clean_files(AppConfig.TEMP_DIR, AppConfig.USER_FILE)
 sys.exit(0)

wp_app_config.py

@@ -0,0 +1,177 @@
+#!/usr/bin/python3
+"""App configuration for Wire-Py"""
+
+import gettext
+import locale
+from pathlib import Path
+from typing import Dict, Any
+
+class AppConfig:
+    """Central configuration class for Wire-Py application"""
+    
+    # Localization
+    APP_NAME: str = "wirepy"
+    LOCALE_DIR: Path = Path("/usr/share/locale/")
+
+    # Base paths
+    BASE_DIR: Path = Path.home()
+    CONFIG_DIR: Path = BASE_DIR / ".config/wire_py"
+    TEMP_DIR: Path = Path("/tmp/tlecdcwg")
+    USER_FILE: Path = Path("/tmp/.log_user")
+
+    # Configuration files
+    SETTINGS_FILE: Path = CONFIG_DIR / "settings"
+    KEYS_FILE: Path = CONFIG_DIR / "keys"
+    AUTOSTART_SERVICE: Path = Path.home() / ".config/systemd/user/wg_start.service"
+    
+    # Default settings
+    DEFAULT_SETTINGS: Dict[str, Any] = {
+        "updates": "on",
+        "theme": "light",
+        "tooltip": True,
+        "autostart": "off"
+    }
+    
+    # UI configuration
+    UI_CONFIG: Dict[str, Any] = {
+        "window_title": "Wire-Py",
+        "window_size": (600, 383),
+        "font_family": "Ubuntu",
+        "font_size": 11,
+        "resizable_window": (False, False)
+    }
+    
+    # System-dependent paths
+    SYSTEM_PATHS: Dict[str, str]= {
+        "ssl_decrypt": "/usr/local/bin/ssl_decrypt.py",
+        "ssl_encrypt": "/usr/local/bin/ssl_encrypt.py",
+        "tcl_path": "/usr/share/TK-Themes",
+        
+    }
+    
+    # Images and icons paths
+    IMAGE_PATHS: Dict[str, str] = {
+        "icon_vpn": "/usr/share/icons/lx-icons/48/wg_vpn.png",
+        "icon_msg": "/usr/share/icons/lx-icons/48/wg_msg.png",
+        "icon_import": "/usr/share/icons/lx-icons/48/wg_import.png",
+        "icon_export": "/usr/share/icons/lx-icons/48/wg_export.png",
+        "icon_trash": "/usr/share/icons/lx-icons/48/wg_trash.png",
+        "icon_start": "/usr/share/icons/lx-icons/48/wg_vpn-start.png",
+        "icon_stop": "/usr/share/icons/lx-icons/48/wg_vpn-stop.png",
+        "icon_info": "/usr/share/icons/lx-icons/64/info.png",
+        "icon_error": "/usr/share/icons/lx-icons/64/error.png"
+
+    } 
+
+    @staticmethod
+    def setup_translations() -> gettext.gettext:
+        """
+        Initialize translations and set the translation function
+        Special method for translating strings in this file
+       
+        Returns:
+            The gettext translation function
+        """
+        locale.bindtextdomain(AppConfig.APP_NAME, AppConfig.LOCALE_DIR)
+        gettext.bindtextdomain(AppConfig.APP_NAME, AppConfig.LOCALE_DIR)
+        gettext.textdomain(AppConfig.APP_NAME)
+        return gettext.gettext
+
+    @classmethod
+    def ensure_directories(cls) -> None:
+        """Ensures that all required directories exist"""
+        cls.CONFIG_DIR.mkdir(parents=True, exist_ok=True)
+        cls.TEMP_DIR.mkdir(parents=True, exist_ok=True)
+    
+    @classmethod
+    def create_default_settings(cls) -> None:
+        """Creates default settings if they don't exist"""
+        if not cls.SETTINGS_FILE.exists():
+            content = "\n".join(f"[{k.upper()}]\n{v}" for k, v in cls.DEFAULT_SETTINGS.items())
+            cls.SETTINGS_FILE.write_text(content)
+    
+    @classmethod
+    def get_image_paths(cls) -> Dict[str, Path]:
+        """Returns paths to UI images"""
+        return {
+            "main_icon": cls.SYSTEM_PATHS["image_path"] / "48/wg_vpn.png",
+            "warning": cls.CONFIG_DIR / "images/warning.png",
+            "success": cls.CONFIG_DIR / "images/success.png",
+            "error": cls.CONFIG_DIR / "images/error.png"
+        }
+    
+    @classmethod
+    def get_autostart_content(cls) -> str:
+        """Returns the content for the autostart service file"""
+        return """[Unit]
+Description=Automatic Tunnel Start
+After=network-online.target
+
+[Service]
+Type=oneshot
+ExecStartPre=/bin/sleep 5
+ExecStart=/usr/local/bin/start_wg.py
+[Install]
+WantedBy=default.target"""
+
+# here is inizialize the class for translate strrings
+_ = AppConfig.setup_translations()
+
+class Msg:
+    """
+    A utility class that provides centralized access to translated message strings.
+    
+    This class contains a dictionary of message strings used throughout the Wire-Py application.
+    All strings are prepared for translation using gettext. The short key names make the code
+    more concise while maintaining readability.
+    
+    Attributes:
+        STR (dict): A dictionary mapping short keys to translated message strings.
+                   Keys are abbreviated for brevity but remain descriptive.
+    
+    Usage:
+        Import this class and access messages using the dictionary:
+        `Msg.STR["sel_tl"]` returns the translated "Select tunnel" message.
+    
+    Note:
+        Ensure that gettext translation is properly initialized before
+        accessing these strings to ensure correct localization.
+    """
+    STR: Dict[str, str] = {
+        # Strings for messages
+        "sel_tl": _("Select tunnel"),
+        "ren_err": _("Renaming not possible"),
+        "exp_succ": _("Export successful"),
+        "exp_in_home": _("Your zip file is in home directory"),
+        "imp_err": _("Import Error"),
+        "exp_err": _("Export Error"),
+        "exp_try": _("Export failed! Please try again"),
+        "tl_first": _("Please first import tunnel"),
+        "sel_list": _("Please select a tunnel from the list"),
+        "sign_len": _("The new name may contain only 12 characters"),
+        "zero_signs": _("At least one character must be entered"),
+        "false signs": _("No valid sign. These must not be used.\nBlank, Slash, Backslash and { }\n"),
+        "is_in_use": _("The tunnel is already in use"),
+        "no_valid_file": _("Oh... no valid Wireguard File!\nPlease select a valid Wireguard File"),
+        "tl_exist": _("Tunnel already available!\nPlease use another file for import")
+
+    }    
+    TTIP: Dict[str, str] = {
+        #Strings for Tooltips
+        "start_tl": _("Click to start selected Wireguard Tunnel"),
+        "empty_list": _("No tunnels to start in the list"),
+        "stop_tl": _("Click to stop selected Wireguard Tunnel"),
+        "del_tl": _("Click to delete selected Wireguard Tunnel"),
+        "rename_tl": _("To rename a tunnel, you need to\nselect a tunnel from the list"),
+        "export_tl": _("         Click to export all\nWireguard Tunnel to Zipfile"),
+        "trash_tl": _("Click to delete a Wireguard Tunnel\nSelect from the list!"),
+        "autostart": _("To use the autostart, enable this Checkbox"),
+        "autostart_info": _("You must have at least one\ntunnel in the list,to use the autostart"),
+        "export_tl_info": _("No Tunnels in List for Export"),
+        "start_tl_info": _("Click to start selected Wireguard Tunnel"),
+        "rename_tl_info": _("To rename a tunnel, at least one must be in the list"),
+        "trash_tl_info": _("No tunnels to delete in the list"),
+        "list_auto_info": _("To use the autostart, a tunnel must be selected from the list")
+
+    }
+