from flask import Flask, render_template, request, jsonify, url_for
from flask_sock import Sock
from lib.config_manager import ConfigurationManager
import os
import json  # Added import
from datetime import datetime
import time  # Added for shutdown delay
import sys # Added for platform detection
import subprocess  # Add this to the imports at the top

# --- Imports for System Tray Icon ---
import threading
import webbrowser
import sys
import requests  # To send shutdown request
from PIL import Image
import pystray

app = Flask(
    __name__, static_url_path="", static_folder="static", template_folder="templates"
)
sock = Sock(app)
config_manager = ConfigurationManager()

# Lista global para mantener las conexiones WebSocket activas
websocket_connections = set()

# --- Globals for Tray Icon ---
tray_icon = None


@sock.route("/ws")
def handle_websocket(ws):
    try:
        websocket_connections.add(ws)
        while True:
            message = ws.receive()
            if message:
                broadcast_message(message)
    except Exception as e:
        print(f"WebSocket error: {e}")
    finally:
        websocket_connections.remove(ws)


def broadcast_message(message):
    """Envía un mensaje a todas las conexiones WebSocket activas y guarda en log."""
    dead_connections = set()
    timestamp = datetime.now().strftime("[%H:%M:%S] ")

    # Normalize input to a list of messages
    if isinstance(message, list):
        messages = message
    else:
        # Si es un solo mensaje, dividirlo en líneas
        messages = [line.strip() for line in message.splitlines() if line.strip()]

    # Procesar cada mensaje
    for raw_msg in messages:
        # Limpiar timestamps duplicados al inicio del mensaje
        while raw_msg.startswith("[") and "]" in raw_msg:
            try:
                closing_bracket = raw_msg.index("]") + 1
                if raw_msg[1 : closing_bracket - 1].replace(":", "").isdigit():
                    raw_msg = raw_msg[closing_bracket:].strip()  # Update raw_msg itself
                else:
                    break
            except:
                break

        # Log the raw message using the config_manager's logger
        # The logger will handle its own timestamping for the file.
        config_manager.append_log(raw_msg)

        # Format message with timestamp *for WebSocket broadcast*
        formatted_msg_for_ws = f"{timestamp}{raw_msg}"

        # Enviar a todos los clientes WebSocket
        for ws in list(websocket_connections):
            try:
                if ws.connected:  # Check if ws is still connected before sending
                    ws.send(
                        f"{formatted_msg_for_ws}\n"
                    )  # Use the correct variable name here
            except Exception:
                dead_connections.add(ws)  # Collect dead connections

    # Limpiar conexiones muertas
    websocket_connections.difference_update(dead_connections)


@app.route("/api/execute_script", methods=["POST"])
def execute_script():
    try:
        script_group = request.json["group"]
        script_name = request.json["script"]

        # Ejecutar el script y obtener resultado
        result = config_manager.execute_script(
            script_group, script_name, broadcast_message
        )

        return jsonify(result)
    except Exception as e:
        error_msg = f"Error ejecutando script: {str(e)}"
        broadcast_message(error_msg)
        return jsonify({"error": error_msg})


@app.route("/")
def index():
    script_groups = config_manager.get_script_groups()
    # Para ordenar una lista de diccionarios, necesitamos especificar una clave.
    # Asumimos que cada diccionario tiene una clave 'name' por la cual ordenar.
    sorted_script_groups = sorted(script_groups, key=lambda group: group['name'])
    return render_template("index.html", script_groups=sorted_script_groups)


@app.route("/api/config/<level>", methods=["GET", "POST"])
def handle_config(level):
    group = request.args.get("group")
    if request.method == "GET":
        try:
            return jsonify(config_manager.get_config(level, group))
        except FileNotFoundError:
            return jsonify({})
    else:
        data = request.json
        config_manager.update_config(level, data, group)
        return jsonify({"status": "success"})


@app.route("/api/schema/<level>", methods=["GET", "POST"])
def handle_schema(level):
    group = request.args.get("group")
    if request.method == "GET":
        return jsonify(config_manager.get_schema(level, group))
    else:
        data = request.json
        config_manager.update_schema(level, data, group)
        return jsonify({"status": "success"})


@app.route("/api/scripts/<group>")
def get_scripts(group):
    # list_scripts ahora devuelve detalles y filtra los ocultos
    scripts = config_manager.list_scripts(group)
    # El frontend espera 'name' y 'description', mapeamos desde 'display_name' y 'short_description'
    return jsonify(
        [
            {
                "name": s["display_name"],
                "description": s["short_description"],
                "filename": s["filename"],
                "long_description": s["long_description"],
            }
            for s in scripts
        ]
    )


@app.route("/api/working-directory", methods=["POST"])
def set_working_directory():
    data = request.json
    if not data:
        return jsonify({"status": "error", "message": "No data provided"})

    path = data.get("path")
    group = data.get("group")

    if not path or not group:
        return jsonify(
            {
                "status": "error",
                "message": f"Missing required fields. Path: {path}, Group: {group}",
            }
        )

    print(f"Setting working directory - Path: {path}, Group: {group}")  # Debug line
    return jsonify(config_manager.set_work_dir(group, path))


@app.route("/api/working-directory/<group>", methods=["GET"])
def get_working_directory(group):
    path = config_manager.get_work_dir(group)
    return jsonify({"path": path, "status": "success" if path else "not_set"})


@app.route("/api/browse-directories")
def browse_directories():
    import tkinter as tk
    from tkinter import filedialog

    # Obtener el directorio inicial
    current_dir = request.args.get("current_path")
    if not current_dir or not os.path.exists(current_dir):
        current_dir = os.path.dirname(os.path.abspath(__file__))

    # Crear y configurar la ventana principal de tkinter
    root = tk.Tk()
    root.attributes("-topmost", True)  # Mantener la ventana siempre arriba
    root.withdraw()

    # Abrir el diálogo de selección de directorio
    directory = filedialog.askdirectory(
        initialdir=current_dir, title="Seleccionar Directorio de Trabajo"
    )

    # Destruir la ventana de tkinter
    root.destroy()

    if directory:
        return jsonify({"status": "success", "path": directory})
    return jsonify({"status": "cancelled"})


@app.route("/api/logs", methods=["GET", "DELETE"])
def handle_logs():
    if request.method == "GET":
        return jsonify({"logs": config_manager.read_log()})
    else:  # DELETE
        success = config_manager.clear_log()
        return jsonify({"status": "success" if success else "error"})


@app.route("/api/group-description/<group>", methods=["GET", "POST"])
def handle_group_description(group):
    if request.method == "GET":
        try:
            details = config_manager.get_group_details(group)
            if "error" in details:
                return jsonify(details), 404  # Group not found
            return jsonify(details)
        except Exception as e:
            return jsonify({"status": "error", "message": str(e)}), 500
    else:  # POST
        try:
            data = request.json
            result = config_manager.update_group_description(group, data)
            return jsonify(result)
        except Exception as e:
            return jsonify({"status": "error", "message": str(e)}), 500


@app.route("/api/script-details/<group>/<script_filename>", methods=["GET", "POST"])
def handle_script_details(group, script_filename):
    if request.method == "GET":
        try:
            details = config_manager.get_script_details(group, script_filename)
            return jsonify(details)
        except Exception as e:
            print(f"Error getting script details for {group}/{script_filename}: {e}")
            return jsonify({"status": "error", "message": str(e)}), 500
    else:  # POST
        try:
            data = request.json
            result = config_manager.update_script_details(group, script_filename, data)
            return jsonify(result)
        except Exception as e:
            print(f"Error updating script details for {group}/{script_filename}: {e}")
            return jsonify({"status": "error", "message": str(e)}), 500


@app.route("/api/directory-history/<group>")
def get_directory_history(group):
    history = config_manager.get_directory_history(group)
    return jsonify(history)


@app.route("/api/open-vscode/<group>", methods=["POST"])
def open_group_in_vscode(group):
    try:
        # Get the full path to the script group directory
        script_group_path = os.path.join(config_manager.script_groups_path, group)

        if not os.path.isdir(script_group_path):
            return (
                jsonify(
                    {
                        "status": "error",
                        "message": f"Directorio del grupo '{group}' no encontrado",
                    }
                ),
                404,
            )

        # VS Code executable path
        vscode_path = (
            r"C:\Users\migue\AppData\Local\Programs\Microsoft VS Code\Code.exe"
        )

        # Check if the file exists
        if not os.path.isfile(vscode_path):
            return (
                jsonify(
                    {
                        "status": "error",
                        "message": f"VS Code no encontrado en: {vscode_path}",
                    }
                ),
                404,
            )

        print(f"Launching VS Code from: {vscode_path}")
        print(f"Opening directory: {script_group_path}")

        # Try with shell=True which can help with Windows path issues
        process = subprocess.Popen(f'"{vscode_path}" "{script_group_path}"', shell=True)

        # Log the process ID for debugging
        print(f"Process started with PID: {process.pid}")

        return jsonify(
            {"status": "success", "message": f"VS Code abierto en: {script_group_path}"}
        )
    except Exception as e:
        print(f"Error opening VS Code for group '{group}': {str(e)}")
        return (
            jsonify(
                {"status": "error", "message": f"Error al abrir VS Code: {str(e)}"}
            ),
            500,
        )


@app.route("/api/open-miniconda", methods=["POST"])
def open_miniconda_console():
    try:
        # Path to the Miniconda installation
        miniconda_path = r"C:\Users\migue\miniconda3"

        # Check if directory exists
        if not os.path.isdir(miniconda_path):
            return (
                jsonify(
                    {
                        "status": "error",
                        "message": f"Miniconda no encontrado en: {miniconda_path}",
                    }
                ),
                404,
            )

        # Path to the activate script
        activate_path = os.path.join(miniconda_path, "Scripts", "activate.bat")

        if not os.path.isfile(activate_path):
            return (
                jsonify(
                    {
                        "status": "error",
                        "message": f"Script de activación no encontrado en: {activate_path}",
                    }
                ),
                404,
            )

        print(f"Opening Miniconda Console from: {miniconda_path}")

        # Use subprocess with CREATE_NEW_CONSOLE flag to ensure the window appears
        # Start the Windows command processor and tell it to run the activate batch file
        startupinfo = subprocess.STARTUPINFO()
        startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
        startupinfo.wShowWindow = 1  # SW_SHOWNORMAL

        # Run cmd.exe with specific flags to show a window
        process = subprocess.Popen(
            [
                "cmd.exe",
                "/K",
                f"echo Activating Miniconda environment... && "
                f'"{activate_path}" && '
                f"echo Miniconda activated successfully. && "
                f"cd /d {miniconda_path}",
            ],
            creationflags=subprocess.CREATE_NEW_CONSOLE,
            startupinfo=startupinfo,
        )

        print(f"Miniconda Console process started with PID: {process.pid}")

        return jsonify(
            {"status": "success", "message": "Miniconda Console abierta correctamente"}
        )
    except Exception as e:
        print(f"Error opening Miniconda Console: {str(e)}")
        return (
            jsonify(
                {
                    "status": "error",
                    "message": f"Error al abrir Miniconda Console: {str(e)}",
                }
            ),
            500,
        )


@app.route("/api/open-explorer", methods=["POST"])
def open_explorer_route():
    data = request.json
    frontend_path = data.get("path")
    group = data.get("group")

    if not group:
        return jsonify({"status": "error", "message": "Grupo no proporcionado."}), 400
    if not frontend_path:
        return jsonify({"status": "error", "message": "Ruta no proporcionada."}), 400

    # Obtener el directorio de trabajo configurado y normalizado para el grupo
    configured_work_dir_raw = config_manager.get_work_dir(group)
    if not configured_work_dir_raw:
        return jsonify({"status": "error", "message": f"No hay directorio de trabajo configurado para el grupo '{group}'."}), 404
    
    configured_work_dir_abs = os.path.abspath(configured_work_dir_raw)
    frontend_path_abs = os.path.abspath(frontend_path)

    # Validar que la ruta del frontend coincide con la ruta configurada
    if configured_work_dir_abs != frontend_path_abs:
        print(f"Intento de acceso no válido: Grupo '{group}', Frontend Path '{frontend_path_abs}', Configured Path '{configured_work_dir_abs}'")
        return jsonify({"status": "error", "message": "La ruta proporcionada no coincide con el directorio de trabajo seguro para este grupo."}), 403

    # Validar que la ruta (ahora sabemos que es la configurada) realmente existe
    if not os.path.isdir(configured_work_dir_abs):
        return jsonify({"status": "error", "message": f"El directorio de trabajo configurado '{configured_work_dir_abs}' no es un directorio válido o no existe."}), 400

    try:
        if sys.platform == "win32":
            os.startfile(configured_work_dir_abs)
        elif sys.platform == "darwin": # macOS
            subprocess.Popen(["open", configured_work_dir_abs])
        else: # linux variants
            subprocess.Popen(["xdg-open", configured_work_dir_abs])
        
        return jsonify({"status": "success", "message": f"Abriendo '{configured_work_dir_abs}' en el explorador."})
    except Exception as e:
        error_msg = f"Error al abrir el explorador en '{configured_work_dir_abs}': {str(e)}"
        print(error_msg) 
        return jsonify({"status": "error", "message": error_msg}), 500


# --- System Tray Icon Functions ---


def run_flask():
    """Runs the Flask app."""
    print("Starting Flask server on http://127.0.0.1:5000/")
    try:
        # use_reloader=False is important when running in a thread
        # For production, consider using waitress or gunicorn instead of app.run
        app.run(host="127.0.0.1", port=5000, debug=True, use_reloader=False)
    except Exception as e:
        print(f"Error running Flask app: {e}")
        # Optionally try to stop the tray icon if Flask fails critically
        if tray_icon:
            print("Attempting to stop tray icon due to Flask error.")
            tray_icon.stop()


def open_app_browser(icon, item):
    """Callback function to open the browser."""
    print("Opening application in browser...")
    webbrowser.open("http://127.0.0.1:5000/")


def shutdown_flask_server():
    """Attempts to gracefully shut down the Werkzeug server."""
    try:
        # This requires the development server (werkzeug)
        # Send a request to a special shutdown route
        requests.post("http://127.0.0.1:5000/_shutdown", timeout=1)
    except Exception as e:
        print(f"Could not send shutdown request to Flask server: {e}")
        print("Flask server might need to be closed manually.")


def stop_icon_thread():
    """Helper function to stop the icon after a delay, allowing HTTP response."""
    time.sleep(0.1)  # Small delay to allow the HTTP response to be sent
    if tray_icon:
        print("Stopping tray icon from shutdown route...")
        tray_icon.stop()
    else:
        print("Tray icon not available to stop.")
        # As a last resort if the icon isn't running for some reason
        # print("Attempting os._exit(0) as fallback.")
        # os._exit(0) # Force exit - use with caution


@app.route("/_shutdown", methods=["POST"])
def shutdown_route():
    """Internal route to shut down the application via the tray icon."""
    print("Shutdown endpoint called.")
    # Stop the main application thread by stopping the tray icon.
    # Do this in a separate thread to allow the HTTP response to return first.
    stopper = threading.Thread(target=stop_icon_thread, daemon=True)
    stopper.start()
    print("Shutdown signal sent to tray icon thread.")
    return jsonify(status="success", message="Application shutdown initiated..."), 200


def exit_application(icon, item):
    """Callback function to exit the application."""
    print("Exit requested via tray menu.")
    # Just stop the icon. This will end the main thread, and the daemon Flask thread will exit.
    print("Stopping tray icon...")
    if icon:  # pystray passes the icon object
        icon.stop()
    elif tray_icon:  # Fallback just in case
        tray_icon.stop()


if __name__ == "__main__":
    # --- Start Flask in a background thread ---
    flask_thread = threading.Thread(target=run_flask, daemon=True)
    flask_thread.start()

    # --- Setup and run the system tray icon ---
    icon_path = (
        r"d:\Proyectos\Scripts\ParamManagerScripts\icon.png"  # Use absolute path
    )
    try:
        image = Image.open(icon_path)
        menu = pystray.Menu(
            pystray.MenuItem("Abrir ParamManager", open_app_browser, default=True),
            pystray.MenuItem("Salir", exit_application),
        )
        tray_icon = pystray.Icon("ParamManager", image, "ParamManager", menu)
        print("Starting system tray icon...")
        tray_icon.run()  # This blocks the main thread until icon.stop() is called
    except FileNotFoundError:
        print(
            f"Error: Icono no encontrado en '{icon_path}'. El icono de notificación no se iniciará.",
            file=sys.stderr,
        )
        print(
            "La aplicación Flask seguirá ejecutándose en segundo plano. Presiona Ctrl+C para detenerla si es necesario."
        )
        # Keep the main thread alive so the Flask thread doesn't exit immediately
        # This allows Flask to continue running even without the tray icon.
        try:
            while flask_thread.is_alive():
                flask_thread.join(timeout=1.0)  # Wait indefinitely
        except KeyboardInterrupt:
            print("\nCtrl+C detectado. Intentando detener Flask...")
            shutdown_flask_server()  # Try to shutdown Flask on Ctrl+C too
            print("Saliendo.")
    except Exception as e:
        print(f"Error al iniciar el icono de notificación: {e}", file=sys.stderr)

    print("Aplicación finalizada.")