using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Input.Touch;
using Penguloon.Controls;
using Penguloon.Levels;
using Penguloon.Scenes;

namespace Penguloon.Scenes
{
    internal class GameScene : SceneBase
    {
        public LevelBase Level { get; set; }

        public Button StartRoundBtn { get; set; }

        public GameScene(Main main, LevelBase level) : base(main)
        {
            this.Level = level;
            this.Level.Initialize(this);

            StartRoundBtn = new Button(this,
            new Vector2(Level.Map.MapWidth + StaticUIValues.BorderWidth, StaticUIValues.ScreenViewport.Y - StaticUIValues.IngameUIPlayButtonHeight),
            new Vector2(StaticUIValues.ScreenViewport.X - (Level.Map.MapWidth + StaticUIValues.BorderWidth), StaticUIValues.IngameUIPlayButtonHeight), "Start");

            StartRoundBtn.OnClick += StartRoundBtn_OnClick;
        }

        private void StartRoundBtn_OnClick(object sender, ClickArgs e)
        {
            Level.Map.WaveManager.StartSpawningEnemies();
            Button btn = (Button)sender;
            btn.ControlState = ControlState.Disabled;
        }

        public override void CreateControls()
        {

        }

        public override void Draw(float deltaTime)
        {
            // background
            Main.SpriteBatch.Draw(ContentManager.GetTexture("UI/background"),
                destinationRectangle: new Rectangle(0, 0, (int)StaticUIValues.ScreenViewport.X, (int)StaticUIValues.ScreenViewport.Y));

            base.Draw(deltaTime);

            this.Level.Draw(deltaTime);

            DrawUI(deltaTime);

            StartRoundBtn.Draw(deltaTime);
        }

        private void DrawUI(float deltaTime)
        {
            //background
            Main.SpriteBatch.Draw(ContentManager.GetTexture("UI/red"),
                destinationRectangle: new Rectangle(Level.Map.MapWidth + StaticUIValues.BorderWidth,
            0, StaticUIValues.IngameUIWidth, (int)StaticUIValues.ScreenViewport.Y));

            //border
            Main.SpriteBatch.Draw(ContentManager.GetTexture("UI/border"),
            destinationRectangle: new Rectangle(Level.Map.MapWidth,
            0, StaticUIValues.BorderWidth, (int)StaticUIValues.ScreenViewport.Y));

            
            //border under text
             Main.SpriteBatch.Draw(ContentManager.GetTexture("UI/border-horizontal"),
            destinationRectangle: new Rectangle(Level.Map.MapWidth + StaticUIValues.BorderWidth - 4,
            StaticUIValues.IngameUITextAreaHeight, StaticUIValues.IngameUIWidth, StaticUIValues.BorderWidth));

            //border above button
            Main.SpriteBatch.Draw(ContentManager.GetTexture("UI/border-horizontal"),
           destinationRectangle: new Rectangle(Level.Map.MapWidth + StaticUIValues.BorderWidth - 4,
           (int)StaticUIValues.ScreenViewport.Y - StaticUIValues.IngameUIPlayButtonHeight - StaticUIValues.BorderWidth,
           StaticUIValues.IngameUIWidth, StaticUIValues.BorderWidth));

            DrawText(ContentManager.GetFont(StaticUIValues.IngameFont), "Gold: " + Level.Money, 
                new Vector2(Level.Map.MapWidth + StaticUIValues.BorderWidth, 10), 
                new Vector2(StaticUIValues.ScreenViewport.X - Level.Map.MapWidth - StaticUIValues.BorderWidth, StaticUIValues.IngameUITextAreaHeight), 
                TextAllignment.CenterTop, Color.White, Color.Black, 2);

            DrawText(ContentManager.GetFont(StaticUIValues.IngameFont), "Wave: " + Level.Map.WaveManager.CurrentWave.ToString(),
                new Vector2(Level.Map.MapWidth + StaticUIValues.BorderWidth, 0),
                new Vector2(StaticUIValues.ScreenViewport.X - Level.Map.MapWidth - StaticUIValues.BorderWidth, StaticUIValues.IngameUITextAreaHeight),
                TextAllignment.CenterMiddle, Color.White, Color.Black, 2);

            DrawText(ContentManager.GetFont(StaticUIValues.IngameFont), "Health: " + Level.Health,
                new Vector2(Level.Map.MapWidth + StaticUIValues.BorderWidth, 0),
                new Vector2(StaticUIValues.ScreenViewport.X - Level.Map.MapWidth - StaticUIValues.BorderWidth, StaticUIValues.IngameUITextAreaHeight),
                TextAllignment.CenterBottom, Color.White, Color.Black, 2);
        }

        public override void Update(float deltaTime, TouchLocation[] touchLocations)
        {
            // We shouldn't update controls when the game is finished to prevent the user from placing any more objects
            if (!Level.Finished)
            {
                base.Update(deltaTime, touchLocations);
                StartRoundBtn.Update(deltaTime, touchLocations);
            }

            if (StartRoundBtn.ControlState == ControlState.Disabled && !Level.Map.WaveManager.RoundActive && !Level.Finished)
            {
                StartRoundBtn.ControlState = ControlState.Idle;
                Level.Map.WaveManager.FinishRound();
            }

            this.Level.Update(deltaTime, touchLocations);
        }
    }
}