using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Audio;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.GamerServices;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Media;
using Microsoft.Xna.Framework.Net;
using Microsoft.Xna.Framework.Storage;
using tAC_Engine.Graphics.Cameras;
using tAC_Engine.Graphics.Entities;
using tAC_Engine.Graphics;
using Util;

namespace FaceOff
{
    /// <summary>
    /// This is the main type for your game
    /// </summary>
    public class FaceOff : GameScreen
    {
        public static String TextureDirectory = @"Texture\";

        List<string> mMenuItems = new List<string>();
        int mItemSelected = 0;
        int mouseSelected = -1;
        GraphicsDeviceManager graphics;
        SpriteBatch mSpriteBatch;
        SpriteFont mSpriteFont;

        EntitySprite mCursor;
        EntitySprite mBackground;
        EntitySprite startButton;
        //EntitySprite tutorialButton;
        EntitySprite exitButton;

        List<GameComponent> mComponents;

        private Logger mLogger;
        InputHandler mInputHandler;

        /// <summary>
        /// Allows the game to perform any initialization it needs to before starting to run.
        /// This is where it can query for any required services and load any non-graphic
        /// related content.  Calling base.Initialize will enumerate through any components
        /// and initialize them as well.
        /// </summary>
        public override void Initialize()
        {
            // TODO: Add your initialization logic here
            //Content.RootDirectory = RootDirectory;

            mLogger = GetLogger();
            mLogger.Initialize();
            mLogger.Write((int)EventCode.FO_START, typeof(EventCode));

            mComponents = new List<GameComponent>();

            mMenuItems.Add("Start");
            mMenuItems.Add("Tutorial");
            mMenuItems.Add("Exit");

            mInputHandler = GetInputHandler();
            mInputHandler.Initialize();

            //mInputHandler.BindButton(Keys.Up, Trigger.Activated, (int)EventCode.MenuUp);
            //mInputHandler.BindButton(Keys.Down, Trigger.Activated, (int)EventCode.MenuDown);
            mInputHandler.BindButton(Keys.Enter, Trigger.Activated, (int)EventCode.FO_INPUT_KEY_ENTER);
            mInputHandler.BindButton(Keys.Left, Trigger.Activated, (int)EventCode.FO_INPUT_KEY_LEFT);
            mInputHandler.BindButton(Keys.Right, Trigger.Activated, (int)EventCode.FO_INPUT_KEY_RIGHT);
            mInputHandler.BindButton(MouseButton.Left, Trigger.Activated, (int)EventCode.FO_INPUT_MOUSE_LEFT_DOWN);

            mBackground = new EntitySprite(Content, @"Texture\FaceOffScreen");
            mBackground.Position = Vector2.Zero;
            mBackground.DrawOrder = -1;
            mBackground.Initialize();

            mCursor = new EntitySprite(Content, @"Texture\Cursor");
            mCursor.BlendMode = SpriteBlendMode.AlphaBlend;
            mCursor.Position = Vector2.Zero;
            mCursor.Initialize();

            startButton = new EntitySprite(Content, @"Texture\start");
            startButton.Position = new Vector2(150, 400);
            startButton.DrawOrder = 0;
            startButton.Initialize();

            //tutorialButton = new EntitySprite(Content, @"Texture\tutorial");
            //tutorialButton.Position = new Vector2(350, 400);
            //tutorialButton.DrawOrder = 0;
            //tutorialButton.Initialize();

            exitButton = new EntitySprite(Content, @"Texture\exit");
            exitButton.Position = new Vector2(550, 400);
            exitButton.DrawOrder = 0;
            exitButton.Initialize();

            mComponents.Add(mBackground);
            mComponents.Add(startButton);
            //mComponents.Add(tutorialButton);
            mComponents.Add(exitButton);

            base.Initialize();
        }

        /// <summary>
        /// LoadContent will be called once per game and is the place to load
        /// all of your content.
        /// </summary>
        protected override void LoadContent()
        {
            // Create a new SpriteBatch, which can be used to draw textures.
            mSpriteBatch = new SpriteBatch(GraphicsDevice);

            // TODO: use this.Content to load your game content here
            foreach (GameComponent gc in mComponents)
            {
                EntitySprite s = gc as EntitySprite;
                if (s != null)
                {
                    s.SpriteBatch = mSpriteBatch;
                }
            }
            mCursor.SpriteBatch = mSpriteBatch;

            //SoundManager.SoundManager.UnloadAudioProject();
            //SoundManager.SoundManager.LoadAudioProject(Content.RootDirectory, @"AudioProject.xgs");

            base.LoadContent();
        }

        /// <summary>
        /// UnloadContent will be called once per game and is the place to unload
        /// all content.
        /// </summary>
        protected override void UnloadContent()
        {
            // TODO: Unload any non ContentManager content here
            base.UnloadContent();
        }

        /// <summary>
        /// Allows the game to run logic such as updating the world,
        /// checking for collisions, gathering input, and playing audio.
        /// </summary>
        /// <param name="gameTime">Provides a snapshot of timing values.</param>
        public override void Update(GameTime gameTime)
        {
            base.Update(gameTime);

            mCursor.X = mInputHandler.MouseLocation.X;
            mCursor.Y = mInputHandler.MouseLocation.Y;

            // TODO: Add your update logic here
            while (mInputHandler.HasEvent())
            {
                InputEvent inputEvent = mInputHandler.GetNextEvent();
                EventCode foEvent = (EventCode)inputEvent.EventCode;
                switch (foEvent)
                {
                    case EventCode.FO_INPUT_KEY_LEFT:
                        //inputEvent.WriteToLog(mLogger, "FO_MENU_INPUT_Left");
                        inputEvent.WriteToLog(mLogger, Enum.GetName(typeof(EventCode), foEvent));
                        mItemSelected = (mItemSelected - 1 + mMenuItems.Count) % mMenuItems.Count;
                        break;
                    case EventCode.FO_INPUT_KEY_RIGHT:
                        //inputEvent.WriteToLog(mLogger, "FO_MENU_INPUT_Right");
                        inputEvent.WriteToLog(mLogger, Enum.GetName(typeof(EventCode), foEvent));
                        mItemSelected = (mItemSelected + 1) % mMenuItems.Count;                       
                        break;
                    case EventCode.FO_INPUT_KEY_ENTER:
                        inputEvent.WriteToLog(mLogger, Enum.GetName(typeof(EventCode), foEvent));
                        switch (mItemSelected)
                        {
                            case 0:
                                //inputEvent.WriteToLog(mLogger, "FO_MENU_INPUT_Enter");
                                mInputHandler.Disable();
                                Raise(new FaceOffGame());
                                break;
                            case 1:
                                break;
                            case 2:
                                //inputEvent.WriteToLog(mLogger, "FO_END_QUIT");
                                inputEvent.WriteToLog(mLogger, Enum.GetName(typeof(EventCode), EventCode.FO_MENU_QUIT));
                                Done();
                                break;
                        }
                        break;
                    case EventCode.FO_INPUT_MOUSE_LEFT_DOWN:
                        inputEvent.WriteToLog(mLogger, Enum.GetName(typeof(EventCode), foEvent));
                        //inputEvent.WriteToLog(mLogger, "FO_MENU_INPUT_MouseClick");
                        if (mInputHandler.MouseLocation.X >= 150 && mInputHandler.MouseLocation.X <= 250
                            && mInputHandler.MouseLocation.Y >= 400 && mInputHandler.MouseLocation.Y <= 435)
                        {
                            //inputEvent.WriteToLog(mLogger, "Starting Game");
                            mInputHandler.Disable();
                            Raise(new FaceOffGame());
                        }
                        else if (mInputHandler.MouseLocation.X >= 350 && mInputHandler.MouseLocation.X <= 450
                            && mInputHandler.MouseLocation.Y >= 400 && mInputHandler.MouseLocation.Y <= 435)
                        {
                            //inputEvent.WriteToLog(mLogger, "Tutorial Started");
                            //Tutuorial code starter goes here
                        }
                        else if (mInputHandler.MouseLocation.X >= 550 && mInputHandler.MouseLocation.X <= 650
                            && mInputHandler.MouseLocation.Y >= 400 && mInputHandler.MouseLocation.Y <= 435)
                        {
                            mLogger.Write((int)EventCode.FO_MENU_QUIT, typeof(EventCode));
                            Done();
                        }
                        break;
                }
            }


            base.Update(gameTime);
        }

        /// <summary>
        /// This is called when the game should draw itself.
        /// </summary>
        /// <param name="gameTime">Provides a snapshot of timing values.</param>
        public override void Draw(GameTime gameTime)
        {

            base.Draw(gameTime);
          
            foreach (GameComponent gc in mComponents)
            {
                EntitySprite s = gc as EntitySprite;
                if (s != null)
                {
                    s.Draw(gameTime);
                }
            }

            if (mInputHandler.MouseLocation.X >= 150 && mInputHandler.MouseLocation.X <= 250
                            && mInputHandler.MouseLocation.Y >= 400 && mInputHandler.MouseLocation.Y <= 435)
            {
                mItemSelected = 0;
            }
            else if (mInputHandler.MouseLocation.X >= 350 && mInputHandler.MouseLocation.X <= 450
                            && mInputHandler.MouseLocation.Y >= 400 && mInputHandler.MouseLocation.Y <= 435)
            {
                mItemSelected = 1;
            }
            else if (mInputHandler.MouseLocation.X >= 550 && mInputHandler.MouseLocation.X <= 650
                && mInputHandler.MouseLocation.Y >= 400 && mInputHandler.MouseLocation.Y <= 435)
            {
                mItemSelected = 2;
            }

            switch (mItemSelected)
            {
                case 0:
                    startButton.Texture = Content.Load<Texture2D>(@"Texture\StartMouseOver");
                    //tutorialButton.Texture = Content.Load<Texture2D>(@"Texture\Tutorial");
                    exitButton.Texture = Content.Load<Texture2D>(@"Texture\Exit");
                    break;
                case 1:
                    //tutorialButton.Texture = Content.Load<Texture2D>(@"Texture\TutorialMouseOver");
                    startButton.Texture = Content.Load<Texture2D>(@"Texture\Start");
                    exitButton.Texture = Content.Load<Texture2D>(@"Texture\Exit");
                    break;
                case 2:
                    exitButton.Texture = Content.Load<Texture2D>(@"Texture\ExitMouseOver");
                    startButton.Texture = Content.Load<Texture2D>(@"Texture\Start");
                    //tutorialButton.Texture = Content.Load<Texture2D>(@"Texture\Tutorial");
                    break;
            }

            if (mCursor.Visible)
            {
                mCursor.Draw(gameTime);
            }
        }
    }
}