using System.Linq;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Input.Touch;

using Android.Content.Res;
using Android.Content;

namespace Penguloon
{
    /// <summary>
    /// This is the main type for your game.
    /// </summary>
    public class Main : Game
    {
        private GraphicsDeviceManager _graphics;
        private SpriteBatch _spriteBatch;
        private Resources _resources;

        public GraphicsDeviceManager Graphics
        {
            get => _graphics;
            set => _graphics = value;
        }

        public SpriteBatch SpriteBatch
        {
            get => _spriteBatch;
            set => _spriteBatch = value;
        }

        public Resources Resources
        {
            get => _resources;
            set => _resources = value;
        }

        public Context Context { get; set; }

        public Context Activity_ { get; set; }

        public Activity Activity__ { get; set; }

        public Main(Resources resources, Activity context)
        {
            Context = context.ApplicationContext;
            Activity_ = context;
            Activity__ = context;

            Resources = resources;
            Graphics = new GraphicsDeviceManager(this);
            Content.RootDirectory = "Content";

            Graphics.IsFullScreen = true;
            Graphics.SupportedOrientations = DisplayOrientation.LandscapeLeft | DisplayOrientation.LandscapeRight;
        }

        /// <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()
        {
            SceneManager.Initialize(this);
            StaticUIValues.Initialize(this);

            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);

            ContentManager.LoadContent(this);

            UserdataManager.ReadData(Context);

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

        /// <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
            ContentManager.DisposeContent();
        }

        /// <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>
        protected override void Update(GameTime gameTime)
        {
            var delta = (float)gameTime.ElapsedGameTime.TotalSeconds;

            TouchLocation[] touchLocations = TouchPanel.GetState().ToArray();

            SceneManager.Update(delta, touchLocations);

            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)
        {
            var delta = (float)gameTime.ElapsedGameTime.TotalSeconds;

            GraphicsDevice.Clear(Color.Black);

            SpriteBatch.Begin();

            SceneManager.Draw(delta);

            SpriteBatch.End();

            base.Draw(gameTime);
        }
    }
}