shared_libs/logview_app_config.py

"""Configuration for the LogViewer application."""

import gettext
import locale
from pathlib import Path
from typing import Dict, Any


class AppConfig:
    """Central configuration and system setup manager for the LogViewer application.

    This class serves as a singleton-like container for all global configuration data,
    including paths, UI settings, localization, versioning, and system-specific resources.
    It ensures that required directories, files, and services are created and configured
    before the application starts. Additionally, it provides tools for managing translations,
    default settings, and autostart functionality to maintain a consistent user experience.

    Key Responsibilities:
    - Centralizes all configuration values (paths, UI preferences, localization).
    - Ensures required directories and files exist on startup.
    - Handles translation setup via `gettext` for multilingual support.
    - Manages default settings file generation.
    - Configures autostart services using systemd for user-specific launch behavior.

    This class is used globally across the application to access configuration data
    consistently and perform system-level setup tasks.
    """

    # Logging
    LOG_DIR = Path.home() / ".local/share/lxlogs"
    Path(LOG_DIR).mkdir(parents=True, exist_ok=True)
    LOG_FILE_PATH = LOG_DIR / "logviewer.log"

    # Localization
    APP_NAME: str = "logviewer"
    LOCALE_DIR: Path = Path("/usr/share/locale/")

    # Base paths
    BASE_DIR: Path = Path.home()
    CONFIG_DIR: Path = BASE_DIR / ".config/logviewer"

    # Configuration files
    SETTINGS_FILE: Path = CONFIG_DIR / "settings"
    DEFAULT_SETTINGS: Dict[str, str] = {
        "# Configuration": "on",
        "# Theme": "light",
        "# Tooltips": True,
        "# Autostart": "off",
        "# Logfile": LOG_FILE_PATH,
    }

    # Updates
    # 1 = 1. Year, 09 = Month of the Year, 2924 = Day and Year of the Year
    VERSION: str = "v. 1.06.0325"
    UPDATE_URL: str = "https://git.ilunix.de/api/v1/repos/punix/shared_libs/releases"
    DOWNLOAD_URL: str = "https://git.ilunix.de/punix/shared_libs/archive"

    # UI configuration
    UI_CONFIG: Dict[str, Any] = {
        "window_title2": "LogViewer",
        "window_size": (600, 383),
        "font_family": "Ubuntu",
        "font_size": 11,
        "resizable_window": (True, True),
    }

    # Images and icons paths
    IMAGE_PATHS: Dict[str, Path] = {
        "icon_info": "/usr/share/icons/lx-icons/64/info.png",
        "icon_error": "/usr/share/icons/lx-icons/64/error.png",
        "icon_log": "/usr/share/icons/lx-icons/48/log.png",
    }

    # System-dependent paths
    SYSTEM_PATHS: Dict[str, Path] = {
        "tcl_path": "/usr/share/TK-Themes",
    }

    @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 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 ensure_directories(cls) -> None:
        """Ensures that all required directories exist"""
        if not cls.CONFIG_DIR.exists():
            cls.CONFIG_DIR.mkdir(parents=True, exist_ok=True)

    @classmethod
    def ensure_log(cls) -> None:
        """Ensures that the log file exists"""
        if not cls.LOG_FILE_PATH.exists():
            cls.LOG_FILE_PATH.touch()


# here is initializing the class for translation strings
_ = 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
    }
    TTIP: Dict[str, str] = {
        # Strings for Tooltips
        "settings": _("Click for Settings"),
    }