import kivy
from kivy.app import App
from kivy.uix.screenmanager import ScreenManager, Screen
import os
import json
from kivy.clock import Clock
from kivy.properties import StringProperty, ListProperty
from utils import (
    generate_key, load_key, encrypt_data, decrypt_data,
    check_server_settings, save_server_settings,
    test_connection, get_devices_from_server, save_route_to_file, fetch_positions_for_selected_day
)
from datetime import date
from kivy.uix.popup import Popup
from kivy.uix.gridlayout import GridLayout
from kivy.uix.button import Button
from kivy.uix.label import Label
from kivy.uix.boxlayout import BoxLayout
from threading import Thread
from kivy.clock import mainthread
from kivy.uix.image import Image
from kivy.uix.behaviors import ButtonBehavior
from kivy.uix.progressbar import ProgressBar
import webbrowser
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from PIL import Image
import time
from config import RESOURCES_FOLDER, CREDENTIALS_FILE

class SettingsScreen(Screen):
    server_response = "Waiting to test connection..."

    def on_pre_enter(self):
        settings = check_server_settings()
        if settings:
            self.ids.server_url_input.text = settings.get("server_url", "")
            self.ids.username_input.text = settings.get("username", "")
            self.ids.password_input.text = settings.get("password", "")
            self.ids.token_input.text = settings.get("token", "")
        else:
            self.ids.server_url_input.text = ""
            self.ids.username_input.text = ""
            self.ids.password_input.text = ""
            self.ids.token_input.text = ""

    def test_connection(self):
        server_url = self.ids.server_url_input.text.strip()
        username = self.ids.username_input.text.strip()
        password = self.ids.password_input.text.strip()
        token = self.ids.token_input.text.strip()
        result = test_connection(server_url, username, password, token)
        self.server_response = result["message"]
        self.ids.result_label.text = self.server_response

    def save_settings(self):
        server_url = self.ids.server_url_input.text.strip()
        username = self.ids.username_input.text.strip()
        password = self.ids.password_input.text.strip()
        token = self.ids.token_input.text.strip()
        if not server_url or not username or not password or not token:
            self.ids.result_label.text = "Please fill in all fields."
            return
        settings_data = {
            "server_url": server_url,
            "username": username,
            "password": password,
            "token": token,
        }
        try:
            save_server_settings(settings_data)
            self.ids.result_label.text = "Settings saved successfully!"
            self.manager.current = "home"
        except Exception as e:
            self.ids.result_label.text = f"Failed to save settings: {str(e)}"
# get trip from server screen



# trhis screen is used to create a new user
# register screen 
class RegisterScreen(Screen):
    def create_user(self):
        """Handle user creation."""
        username = self.ids.set_username_input.text.strip()
        password = self.ids.set_password_input.text.strip()
        confirm_password = self.ids.confirm_password_input.text.strip()
        email = self.ids.set_email_input.text.strip()

        if not username or not password or not confirm_password or not email:
            self.ids.result_label.text = "Please fill in all fields."
            return

        if password != confirm_password:
            self.ids.result_label.text = "Passwords do not match."
            return

        # Check if the username or email already exists
        if self.user_exists(username, email):
            self.ids.result_label.text = "User or email already exists."
            return

        # Save user data (encrypted)
        user_data = {
            "username": username,
            "password": password,
            "email": email,
        }
        encrypted_data = encrypt_data(json.dumps(user_data))

        try:
            with open(CREDENTIALS_FILE, "ab") as file:  # Append encrypted data
                file.write(encrypted_data + b"\n")  # Add a newline for separation
        except Exception as e:
            self.ids.result_label.text = f"Failed to save user: {str(e)}"
            return

        self.ids.result_label.text = "User created successfully!"
        # Navigate back to the login screen
        self.manager.current = "login"
    def user_exists(self, username, email):
        """Check if a username or email already exists in the credentials.enc file."""
        try:
            with open(CREDENTIALS_FILE, "rb") as file:
                for line in file:
                    decrypted_data = decrypt_data(line.strip())
                    user = json.loads(decrypted_data)
                    if user["username"] == username or user["email"] == email:
                        return True
        except FileNotFoundError:
            pass
        except Exception as e:
            self.ids.result_label.text = f"Error checking user: {str(e)}"
        return False