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;

namespace cutscene_tester2
{
    /// <summary>
    /// This is the main type for your game
    /// </summary>
    public class Game1 : Microsoft.Xna.Framework.Game
    {
        GraphicsDeviceManager graphics;
        SpriteBatch spriteBatch;
        Rectangle textBox;
        Texture2D rose;
        SpriteFont font;
        String text,  typedText;
        Double typedTextLength;
        int delayInMilliseconds;
        bool isDoneDrawing;

        public Game1()
        {
            graphics = new GraphicsDeviceManager(this);
            Content.RootDirectory = "Content";
        }

        /// <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>
        protected override void Initialize()
        {
            // TODO: Add your initialization logic here
            textBox = new Rectangle(600, 0, 200, 200);

            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.
            spriteBatch = new SpriteBatch(GraphicsDevice);
            rose = Content.Load<Texture2D>("paper");
            font = Content.Load<SpriteFont>("SpriteFont1");
            text = "Yo wazzup";

            delayInMilliseconds = 100;
            isDoneDrawing = false;

            // TODO: use this.Content to load your game content here
        }

        /// <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
        }

        /// <summary>
        /// checks to see if isDoneDrawing is set to true.
        /// If false, it then checks to see if the delay is at 0, dispalying all the text at once.
        /// otherwise, we check to see if ttl is less then the text length, meaning it wasn't fully pritned
        /// </summary>
        /// <param name="gameTime">Provides a snapshot of timing values.</param>
        protected override void Update(GameTime gameTime)
        {
            // Allows the game to exit
            if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
                this.Exit();
            KeyboardState keyboardstate = Keyboard.GetState();

            if (!isDoneDrawing)
            {
                if (delayInMilliseconds == 0)
                {
                    typedText = text;
                    isDoneDrawing = true;


                }
                else if (typedTextLength < text.Length)
                {
                    typedTextLength = typedTextLength + gameTime.ElapsedGameTime.TotalMilliseconds / delayInMilliseconds;

                    if (typedTextLength >= text.Length)
                    {
                        typedTextLength = text.Length;
                        isDoneDrawing = true;

                    }

                    typedText = text.Substring(0, (int)typedTextLength);
                }
            }

		if (isDoneDrawing)
                {
                    if (keyboardstate.IsKeyDown(Keys.A))
                    {

                        text = "How you doin?";
                        isDoneDrawing = false;
                    }


                }

            // TODO: Add your update logic here

            base.Update(gameTime);
        }

        /// <summary>
        /// This is called when the game should draw itself.
        /// </summary>
        /// <param name="gameTime">Provides a snapshot of timing values.</param>
        protected override void Draw(GameTime gameTime)
        {
            GraphicsDevice.Clear(Color.CornflowerBlue);
            spriteBatch.Begin();
            spriteBatch.Draw(rose, textBox, Color.White);

            spriteBatch.DrawString(font, typedText, new Vector2(textBox.X, textBox.Y), Color.White);

            spriteBatch.End();

            // TODO: Add your drawing code here

            base.Draw(gameTime);
        }
    }
}