using Penguloon.Scenes;
using Microsoft.Xna.Framework;
using System;
using System.Collections.Generic;
using Penguloon.Levels;
using Microsoft.Xna.Framework.Input.Touch;

namespace Penguloon.Controls
{
    class LevelSelector : ControlBase
    {
        public int PanelWidth { get; set; }
        public const int PanelMarginX = 30;
        public const int MaxPanels = 3;

        int selectedMap = 0;

        public List<LevelBase> Levels { get; set; } = new List<LevelBase>();

        public Rectangle Panel1 { get; set; }
        public Rectangle Panel2 { get; set; }
        public Rectangle Panel3 { get; set; }

        public LevelSelector(SceneBase parentScene, Vector2 position, Vector2 size) : base(parentScene, position, size)
        {
            this.BackgroundIdle = ContentManager.GetTexture("UI/btnIdle");
            this.BackgroundPressed = ContentManager.GetTexture("UI/btnIdle");
            this.BackgroundDisabled = ContentManager.GetTexture("UI/btnIdle");

            PanelWidth = ((int)((StaticUIValues.ScreenViewport.X - ((MaxPanels + 1) * PanelMarginX)) / MaxPanels));

            int panel1posX = (PanelMarginX + (PanelMarginX * 0) + (PanelWidth * 0)) + 20;
            int panel2posX = (PanelMarginX + (PanelMarginX * 1) + (PanelWidth * 1));
            int panel3posX = (PanelMarginX + (PanelMarginX * 2) + (PanelWidth * 2)) - 20;

            int sidePanelMarginY = 25;
            int centerPanelWidth = (int)(PanelWidth * 1.2);

            Panel1 = new Rectangle(panel1posX, (int)position.Y + (sidePanelMarginY / 2), (int)(PanelWidth * 1), (int)size.Y - sidePanelMarginY);
            Panel2 = new Rectangle(panel2posX - ((centerPanelWidth - PanelWidth) / 2), (int)position.Y, centerPanelWidth, (int)size.Y);
            Panel3 = new Rectangle(panel3posX, (int)position.Y + (sidePanelMarginY / 2), (int)(PanelWidth * 1), (int)size.Y - sidePanelMarginY);

            this.OnClick += LevelSelector_OnClick;

            CreateLevels();
        }

        private void LevelSelector_OnClick(object sender, ClickArgs e)
        {
            Rectangle fingerRec = new Rectangle(e.ClickPosition.ToPoint(), new Point(1, 1));

            if (Panel1.Intersects(fingerRec) && selectedMap > 0)
            {
                selectedMap--;
            }

            if (Panel2.Intersects(fingerRec))
            {
                SoundManager.PlayClickSound();
                SceneManager.GameScene = new GameScene(ParentScene.Main, Levels[selectedMap]);
                SceneManager.SelectedScene = SelectedScene.Ingame;
            }

            if (Panel3.Intersects(fingerRec) && selectedMap < Levels.Count - 1)
            {
                selectedMap++;
            }
        }

        private void CreateLevels()
        {
            Levels.Add(new IceLevel());
            Levels.Add(new IceLevel());
            Levels.Add(new IceLevel());
        }

        public override void Draw(float deltaTime)
        {
            // We dont need to draw text or a background
            //base.Draw(deltaTime);

            DrawPanels();
        }

        private void DrawPanels()
        {
            if (selectedMap - 1 >= 0)
            {
                ParentScene.Main.SpriteBatch.Draw(Levels[selectedMap - 1].SplashArt,
                    destinationRectangle: Panel1);
            }

            if (selectedMap + 1 < Levels.Count)
            {
                ParentScene.Main.SpriteBatch.Draw(Levels[selectedMap + 1].SplashArt,
                destinationRectangle: Panel3);
            }

            ParentScene.Main.SpriteBatch.Draw(Levels[selectedMap].SplashArt,
            destinationRectangle: Panel2);
        }
    }
}