# ProjectUtility/ProjectUtility.py

import sys
import os
import logging
import argparse
import tkinter as tk
from tkinter import messagebox

# Importa la finestra principale (che creeremo tra poco)
# Assumendo che sia in gui/main_window.py
project_root = os.path.dirname(os.path.abspath(__file__))
sys.path.insert(0, project_root)

# Tentativo di importare le classi necessarie
try:
    from gui.main_window import MainWindow
except ImportError as e:
    print(f"Error importing GUI components: {e}")
    print("Make sure the directory structure is correct.")
    try:
        root = tk.Tk()
        root.withdraw()
        messagebox.showerror(
            "Startup Error",
            f"Error importing GUI components:\n{e}\n\nPlease check the project structure.",
        )
        root.destroy()
    except tk.TclError:
        pass
    sys.exit(1)
except tk.TclError as e:
    print(f"Error initializing Tkinter: {e}")
    print("Tkinter might not be installed correctly or a display might be unavailable.")
    sys.exit(1)


# --- Constants ---
LOGS_DIR = os.path.join(project_root, "logs")
DEFAULT_LOG_FILE = os.path.join(LOGS_DIR, "project_utility.log")
DEFAULT_LOG_LEVEL = logging.INFO


# --- Logging Setup ---
def setup_logging(
    log_level: int = DEFAULT_LOG_LEVEL, log_file: str = DEFAULT_LOG_FILE
) -> None:
    """
    Configures the application's logging.

    Args:
        log_level: The minimum logging level (e.g., logging.INFO).
        log_file: The path to the log file.
    """
    # Ensure log directory exists
    os.makedirs(os.path.dirname(log_file), exist_ok=True)  # Changed comment for clarity

    log_format = "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
    logging.basicConfig(
        level=log_level,
        format=log_format,
        handlers=[
            logging.FileHandler(log_file, mode="a"),
            logging.StreamHandler(sys.stdout),
        ],
    )
    logging.info("Logging configured successfully.")
    logging.info(f"Log level set to: {logging.getLevelName(log_level)}")
    logging.info(f"Log file location: {log_file}")


# --- Argument Parsing ---
def parse_arguments() -> argparse.Namespace:
    """
    Parses command-line arguments.

    Returns:
        An object containing the parsed arguments.
    """
    parser = argparse.ArgumentParser(
        description="Project Utility - A dashboard for project management tools."
    )
    parser.add_argument(
        "--log-level",
        type=str,
        choices=["DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"],
        default=logging.getLevelName(DEFAULT_LOG_LEVEL),
        help=f"Set the logging level (default: {logging.getLevelName(DEFAULT_LOG_LEVEL)})",
    )
    parser.add_argument(
        "--log-file",
        type=str,
        default=DEFAULT_LOG_FILE,
        help=f"Specify the log file path (default: {DEFAULT_LOG_FILE})",
    )
    return parser.parse_args()


# --- Main Execution ---
def main() -> None:
    """
    Main function to initialize and run the application using Tkinter.
    """
    args = parse_arguments()
    log_level_int = getattr(logging, args.log_level.upper(), DEFAULT_LOG_LEVEL)
    setup_logging(log_level=log_level_int, log_file=args.log_file)
    logging.info("Starting ProjectUtility application...")

    root = None  # Initialize root to None for robust error handling
    try:
        # Create the main Tkinter window (root)
        root = tk.Tk()
        root.withdraw()  # Hide the main window temporarily

        # Create and setup the main application window
        # MainWindow is responsible for calling root.deiconify() when ready
        main_app = MainWindow(root)
        logging.info("Main window initialized.")

    except Exception as e:
        logging.exception("Failed to create the main window.")
        # Use messagebox if Tkinter initialization was at least partially successful
        try:
            # Create temporary hidden root if 'root' creation failed earlier
            # or if messagebox is needed before main root is usable.
            temp_root = tk.Tk()
            temp_root.withdraw()
            messagebox.showerror(
                "Fatal Error", f"Could not initialize the main application window:\n{e}"
            )
            temp_root.destroy()
        except tk.TclError:
            # Fallback if messagebox cannot be shown
            print(
                f"CRITICAL ERROR: Could not initialize the main application window: {e}"
            )

        # Attempt to destroy the main root if it was created before the exception
        if root:
            try:
                if root.winfo_exists():  # Check before destroying in error case
                    root.destroy()
            except tk.TclError:
                logging.warning(
                    "TclError attempting to destroy root after initialization failure."
                )
        sys.exit(1)

    # Start the Tkinter event loop
    logging.info("Starting Tkinter event loop.")
    try:
        root.mainloop()
    except KeyboardInterrupt:
        logging.info("Application interrupted by user (KeyboardInterrupt).")
        # If interrupted, the window might still exist, try closing it gracefully
        if root and root.winfo_exists():
            # Trigger the normal close procedure if possible
            try:
                main_app._on_close()  # Attempt to call the app's close handler
            except tk.TclError:
                logging.warning(
                    "TclError calling _on_close during KeyboardInterrupt, forcing destroy."
                )
                root.destroy()  # Force destroy if _on_close failed or wasn't fully initialized
            except AttributeError:  # If main_app wasn't fully initialized
                logging.warning(
                    "main_app not fully initialized during KeyboardInterrupt, forcing destroy."
                )
                root.destroy()

    finally:
        # The main window destruction is handled by MainWindow._on_close()
        # No need to call root.destroy() here again.
        # Removing the previous block:
        # if root and root.winfo_exists():
        #      root.destroy()
        logging.debug("Mainloop finished.")

    logging.info("Application finished.")
    sys.exit(0)


if __name__ == "__main__":
    main()