#!/usr/bin/python3

"""App configuration for Custom File Dialog"""
import json
from pathlib import Path
import os
from typing import Dict, Any
from shared_libs.common_tools import Translate


class AppConfig:
    """Central configuration and system setup manager for the Wire-Py 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.

    Key Responsibilities:
    - Centralizes all configuration values (paths, UI preferences, localization).
    - Ensures required directories and files exist.
    - 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.
    """

    # Helper to make icon paths robust, so the script can be run from anywhere
    SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
    MAX_ITEMS_TO_DISPLAY = 1000

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

    # UI configuration
    UI_CONFIG: Dict[str, Any] = {
        "window_size": (1050, 850),
        "window_min_size": (650, 550),
        "font_family": "Ubuntu",
        "font_size": 11,
        "resizable_window": (True, True),
    }


# here is initializing the class for translation strings
_ = Translate.setup_translations("custom_file_dialog")


class CfdConfigManager:
    """
    Manages CFD-specific settings using a JSON file for flexibility.
    """
    _config = None
    _config_file = AppConfig.CONFIG_DIR / "cfd_settings.json"
    _default_settings = {
        "search_icon_pos": "left",     # 'left' or 'right'
        "button_box_pos": "left",      # 'left' or 'right'
        "window_size_preset": "1050x850",  # e.g., "1050x850"
        "default_view_mode": "icons",    # 'icons' or 'list'
        "search_hidden_files": False,   # True or False
        "use_trash": False,             # True or False
        "confirm_delete": False,          # True or False
        "recursive_search": True,
        "use_pillow_animation": True
    }

    @classmethod
    def _ensure_config_file(cls):
        """Ensures the config file exists with default values if not present."""
        if not cls._config_file.exists():
            try:
                cls._config_file.parent.mkdir(parents=True, exist_ok=True)
                with open(cls._config_file, 'w', encoding='utf-8') as f:
                    json.dump(cls._default_settings, f, indent=4)
            except IOError as e:
                print(f"Error creating default settings file: {e}")

    @classmethod
    def load(cls):
        """Loads settings from the JSON file, applying defaults for missing keys."""
        cls._ensure_config_file()
        if cls._config is None:
            try:
                with open(cls._config_file, 'r', encoding='utf-8') as f:
                    loaded_config = json.load(f)
                # Merge with defaults to ensure all keys are present
                cls._config = cls._default_settings.copy()
                cls._config.update(loaded_config)
            except (IOError, json.JSONDecodeError):
                cls._config = cls._default_settings.copy()
        return cls._config

    @classmethod
    def save(cls, settings):
        """Saves the given settings dictionary to the JSON file."""
        try:
            with open(cls._config_file, 'w', encoding='utf-8') as f:
                json.dump(settings, f, indent=4)
            cls._config = settings  # Update cached config
        except IOError as e:
            print(f"Error saving settings: {e}")


class LocaleStrings:
    # Strings from custom_file_dialog.py
    CFD = {
        "title": _("Custom File Dialog"),
        "select_file": _("Select a file"),
        "open": _("Open"),
        "cancel": _("Cancel"),
        "file_label": _("File:"),
        "no_file_selected": _("No file selected"),
        "error_title": _("Error"),
        "select_file_error": _("Please select a file."),
        "all_files": _("All Files"),
        "free_space": _("Free Space"),
        "entries": _("entries"),
        "directory_not_found": _("Directory not found"),
        "unknown": _("Unknown"),
        "showing": _("Showing"),
        "of": _("of"),
        "access_denied": _("Access denied."),
        "path_not_found": _("Path not found"),
        "directory": _("Directory"),
        "not_found": _("not found."),
        "access_to": _("Access to"),
        "denied": _("denied."),
    }

    # Strings from cfd_view_manager.py
    VIEW = {
        "name": _("Name"),
        "date_modified": _("Date Modified"),
        "type": _("Type"),
        "size": _("Size"),
        "view_mode": _("View Mode"),
        "icon_view": _("Icon View"),
        "list_view": _("List View"),
        "filename": _("Filename"),
        "path": _("Path"),
    }

    # Strings from cfd_ui_setup.py
    UI = {
        "search": _("Search"),
        "go": _("Go"),
        "up": _("Up"),
        "back": _("Back"),
        "forward": _("Forward"),
        "home": _("Home"),
        "new_folder": _("New Folder"),
        "delete": _("Delete"),
        "settings": _("Settings"),
        "show_hidden_files": _("Show Hidden Files"),
        "places": _("Places"),
        "devices": _("Devices"),
        "bookmarks": _("Bookmarks"),
        "new_document": _("New Document"),
        "hide_hidden_files": _("Hide Hidden Files"),
        "start_search": _("Start Search"),
        "cancel_search": _("Cancel Search"),
        "delete_move": _("Delete/Move selected item"),
        "copy_filename_to_clipboard": _("Copy Filename to Clipboard"),
        "copy_path_to_clipboard": _("Copy Path to Clipboard"),
        "open_file_location": _("Open File Location"),
        "searching_for": _("Searching for"),
        "search_cancelled_by_user": _("Search cancelled by user"),
        "folders_and": _("folders and"),
        "files_found": _("files found."),
        "no_results_for": _("No results for"),
        "error_during_search": _("Error during search"),
        "search_error": _("Search Error"),
    }

    # Strings from cfd_settings_dialog.py
    SET = {
        "title": _("Settings"),
        "search_icon_pos_label": _("Search Icon Position"),
        "left_radio": _("Left"),
        "right_radio": _("Right"),
        "button_box_pos_label": _("Button Box Position"),
        "window_size_label": _("Window Size"),
        "default_view_mode_label": _("Default View Mode"),
        "icons_radio": _("Icons"),
        "list_radio": _("List"),
        "search_hidden_check": _("Search hidden files"),
        "use_trash_check": _("Use trash for deletion"),
        "confirm_delete_check": _("Confirm file deletion"),
        "recursive_search_check": _("Recursive search"),
        "use_pillow_check": _("Use Pillow animation"),
        "save_button": _("Save"),
        "cancel_button": _("Cancel"),
        "search_settings": _("Search Settings"),
        "deletion_settings": _("Deletion Settings"),
        "recommended": _("recommended"),
        "send2trash_not_found": _("send2trash library not found"),
        "animation_settings": _("Animation Settings"),
        "pillow": _("Pillow"),
        "pillow_not_found": _("Pillow library not found"),
        "animation_type": _("Animation Type"),
        "counter_arc": _("Counter Arc"),
        "double_arc": _("Double Arc"),
        "line": _("Line"),
        "blink": _("Blink"),
        "deletion_options_info": _("Deletion options are only available in save mode"),
        "reset_to_default": _("Reset to Default"),
    }

    # Strings from cfd_file_operations.py
    FILE = {
        "new_folder_title": _("New Folder"),
        "enter_folder_name_label": _("Enter folder name:"),
        "untitled_folder": _("Untitled Folder"),
        "error_title": _("Error"),
        "folder_exists_error": _("Folder already exists."),
        "create_folder_error": _("Could not create folder."),
        "confirm_delete_title": _("Confirm Deletion"),
        "confirm_delete_file_message": _("Are you sure you want to permanently delete this file?"),
        "confirm_delete_files_message": _("Are you sure you want to permanently delete these files?"),
        "delete_button": _("Delete"),
        "cancel_button": _("Cancel"),
        "file_not_found_error": _("File not found."),
        "trash_error": _("Could not move file to trash."),
        "delete_error": _("Could not delete file."),
        "folder": _("Folder"),
        "file": _("File"),
        "move_to_trash": _("move to trash"),
        "delete_permanently": _("delete permanently"),
        "are_you_sure": _("Are you sure you want to"),
        "was_successfully_removed": _("was successfully removed."),
        "error_removing": _("Error removing"),
        "new_document_txt": _("New Document.txt"),
        "error_creating": _("Error creating"),
        "copied_to_clipboard": _("copied to clipboard."),
        "error_renaming": _("Error renaming"),
        "not_accessible": _("not accessible"),
    }

    # Strings from cfd_navigation_manager.py
    NAV = {
        "home": _("Home"),
        "trash": _("Trash"),
        "desktop": _("Desktop"),
        "documents": _("Documents"),
        "downloads": _("Downloads"),
        "music": _("Music"),
        "pictures": _("Pictures"),
        "videos": _("Videos"),
        "computer": _("Computer"),
    }