using System;
using System.IO;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;

namespace SpriteFontPlus.Samples.BMFont
{
	/// <summary>
	/// This is the main type for your game.
	/// </summary>
	public class Game1 : Game
	{
		GraphicsDeviceManager _graphics;
		SpriteBatch _spriteBatch;

		private SpriteFont _font;

		public Game1()
		{
			_graphics = new GraphicsDeviceManager(this)
			{
				PreferredBackBufferWidth = 1024,
				PreferredBackBufferHeight = 768
			};

			Content.RootDirectory = "Content";
			IsMouseVisible = true;
			Window.AllowUserResizing = true;
		}
		
		/// <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);

			Texture2D texture;
			using (var stream = TitleContainer.OpenStream("Fonts/test_0.png"))
			{
				texture = Texture2D.FromStream(GraphicsDevice, stream);
			}

			string fontData;
			using (var stream = TitleContainer.OpenStream("Fonts/test.fnt"))
			{
				using (var reader = new StreamReader(stream))
				{
					fontData = reader.ReadToEnd();
				}
			}

			_font = BMFontLoader.LoadXml(fontData, name => new TextureWithOffset(texture));

			GC.Collect();
		}

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

		/// <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);

			// TODO: Add your drawing code here
			_spriteBatch.Begin();

			// Render some text
			_spriteBatch.DrawString(_font, "The quick brown fox jumps over the lazy dog",
				new Vector2(0, 0), Color.White);

			_spriteBatch.End();

			base.Draw(gameTime);
		}
	}
}