//---------------------------------------------------------------------------------------------------------------------------------------------------
// <copyright file="MenuSystem.cs" company="DarkWynter Studios">
//     Copyright (C)2007 DarkWynter Studios.  All rights reserved.
// </copyright>
//---------------------------------------------------------------------------------------------------------------------------------------------------
// {Contact : darkwynter.com for licensing information
//---------------------------------------------------------------------------------------------------------------------------------------------------

namespace DarkWynterEngine.Menus
{
    #region Using Statements
    using System;
    using System.Collections.Generic;
    using System.Diagnostics;
    using Microsoft.Xna.Framework;
    using Microsoft.Xna.Framework.Audio;
    using Microsoft.Xna.Framework.Content;
    using Microsoft.Xna.Framework.Graphics;
    using Microsoft.Xna.Framework.Input;
    using Microsoft.Xna.Framework.Storage;
    using System.Threading;
    using System.Xml;
    #endregion

    using Audio;
    using Globals;
    using ObjectLib;
    using Controllers;
    using Utilities;
    using Menus;

    /// <summary>
    /// Controls all of the menu screen and menu items
    /// </summary>
    public class MenuSystem
    {

        protected List<GameScreen> menuScreens = new List<GameScreen>();





        /// <summary>
        /// Constructor
        /// </summary>
        public MenuSystem()
        {

        }



        /// <summary>
        /// Updates the controller and then the current active screen
        /// </summary>
        /// <param name="objectLibrary">Current Object Library</param>
        public virtual void Update(ObjectLibrary objectLibrary)
        {

            // Update Controller Input
            DarkWynterGame.menuController.Update(Enums.AttackType.NONE);

            // Check if the FPS counter was toggled
            if (DarkWynterGame.menuController.gameInput.fpsToggleButton)
            {
                Statics.SystemSettings.enableFPSDisplay = !Statics.SystemSettings.enableFPSDisplay;
            }



            for (int i = 0; i < menuScreens.Count; i++)
            {
                // Update appropriate menu screen
                if (Statics.SystemSettings.gameState == menuScreens[i].GetEngineState())
                {
                    menuScreens[i].Update(objectLibrary);
                    break;
                }

            }

        }

        /// <summary>
        /// Draws the appropriate screen
        /// </summary>
        /// <param name="spriteBatch">SpriteBatch used to draw</param>
        /// <param name="screenSaver">Current ScreenSaver</param>
        public virtual void Draw(SpriteBatch spriteBatch, ScreenSaver screenSaver)
        {
            Statics.SystemSettings.graphics.GraphicsDevice.Clear(Color.Black);
            Statics.SystemSettings.graphics.GraphicsDevice.Viewport = Statics.RenderSettings.defaultViewport;

            // Begin Sprite Batching for Menusystem
            spriteBatch.Begin(SpriteBlendMode.AlphaBlend, SpriteSortMode.Texture, SaveStateMode.None);

            // Begin Screen Saver Wrapper
            if (Statics.SystemSettings.screenSaverTimer.ElapsedMilliseconds > Statics.SystemSettings.ANTI_BURN_TIMER)
            {
                screenSaver.AntiBurnScreenSaverBegin(spriteBatch);
            }



            for (int i = 0; i < menuScreens.Count; i++)
            {
                // Update appropriate menu screen
                if (Statics.SystemSettings.gameState == menuScreens[i].GetEngineState())
                {
                    menuScreens[i].Draw(spriteBatch);
                    break;
                }

            }


            // End Screen Saver Wrapper
            if (Statics.SystemSettings.screenSaverTimer.ElapsedMilliseconds > Statics.SystemSettings.ANTI_BURN_TIMER)
            {
                screenSaver.AntiBurnScreenSaverEnd(spriteBatch);
            }
            spriteBatch.End();
        }

    }
}