using System;

using Microsoft.SPOT;
using Microsoft.SPOT.Input;
using Microsoft.SPOT.Presentation;
using Microsoft.SPOT.Presentation.Controls;

using SPL.Script.Engine;

namespace SPLMFEvaluator1
{
    public class Program : Microsoft.SPOT.Application
    {
        public static void Main()
        {
            Program myApplication = new Program();

            Window mainWindow = myApplication.CreateWindow();

            GPIOButtonInputProvider inputProvider = new GPIOButtonInputProvider(null);

            myApplication.Run(mainWindow);
        }

        private Window mainWindow;

        //##########################  Sample Code  #################################
        private ConsoleWindow _consoleWindow;
        private Evaluator _evaluator = null;
        private SPLHashtable _GlobalVariables = new SPLHashtable();
        //##########################  Sample Code  #################################

        public Window CreateWindow()
        {
            mainWindow = new Window();
            mainWindow.Height = SystemMetrics.ScreenHeight;
            mainWindow.Width = SystemMetrics.ScreenWidth;

            //##########################  Sample Code  #################################
            Font font = Resources.GetFont(Resources.FontResources.small);
            _consoleWindow = new ConsoleWindow(font);

            mainWindow.Child = _consoleWindow;
            //##########################  Sample Code  #################################

            mainWindow.AddHandler(Buttons.ButtonUpEvent, new ButtonEventHandler(OnButtonUp), false);

            mainWindow.Visibility = Visibility.Visible;

            Buttons.Focus(mainWindow);


            //##########################  Sample Code  #################################
            _GlobalVariables.Add("a", 100);
            _GlobalVariables.Add("b", 250);
            _GlobalVariables.Add("c", -33);
            _GlobalVariables.Add("d", 12.345);

            _evaluator = new Evaluator();
            _evaluator.GlobalVariables = _GlobalVariables;

            _consoleWindow.WriteLine("Please push any button!.");
            _consoleWindow.WriteLine("Select button will clear screen.");
            //##########################  Sample Code  #################################

            return mainWindow;
        }

        private void OnButtonUp(object sender, ButtonEventArgs e)
        {
            Debug.Print(e.Button.ToString());

            //##########################  Sample Code  #################################
            if (e.Button == Microsoft.SPOT.Hardware.Button.VK_SELECT)
            {
                _consoleWindow.ClearConsole();
                _consoleWindow.WriteLine("a = " + _evaluator.Evaluate("a").ToString());
                _consoleWindow.WriteLine("b = " + _evaluator.Evaluate("b").ToString());
                _consoleWindow.WriteLine("c = " + _evaluator.Evaluate("c").ToString());
                _consoleWindow.WriteLine("d = " + _evaluator.Evaluate("d").ToString());

            }
            else if (e.Button == Microsoft.SPOT.Hardware.Button.VK_LEFT)
            {
                object result = _evaluator.Evaluate("(a - b) * Math.Abs(c)");

                _consoleWindow.WriteLine("(a - b) * Math.Abs(c) = " + result.ToString());
            }
            else if (e.Button == Microsoft.SPOT.Hardware.Button.VK_RIGHT)
            {
                object result = _evaluator.Evaluate("a + b * Util.ToInt(d)");

                _consoleWindow.WriteLine("a + b * Util.ToInt(d) = " + result.ToString());
            }
            else if (e.Button == Microsoft.SPOT.Hardware.Button.VK_UP)
            {
                object result = _evaluator.Evaluate("a + b * d");

                _consoleWindow.WriteLine("a + b * d = " + result.ToString());
            }
            else if (e.Button == Microsoft.SPOT.Hardware.Button.VK_DOWN)
            {
                object result = _evaluator.Evaluate("a / b");

                _consoleWindow.WriteLine("a / b = " + result.ToString());
            }
            //##########################  Sample Code  #################################
        }
    }
}