using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;

namespace Game2
{
    public class Card
    {
        Texture2D currentTexture;
        Texture2D reversTexture;
        Texture2D mainTexture;
        Rectangle rect;
        Rectangle chunk;
        Rectangle? currentChunk=null;


        int width = 100;
        int height = 100;

        public int Type;

        bool clicked = false;
        bool unlocked = false;

        public Rectangle Rect { get => rect; set => rect = value; }

        public Card(ContentManager content, int x, int y, int offsetX, int offsetY, int type)
        {
            Type = type;
            reversTexture = content.Load<Texture2D>("question");
            mainTexture = content.Load<Texture2D>("numbers");

            chunk = new Rectangle(y * width, x * height, width, height); //reverse x and y


            rect = new Rectangle(offsetX, offsetY, width, height);

            

            currentTexture = reversTexture;
        }

        public void Draw(SpriteBatch spriteBatch, int x, int y)
        {
            //spriteBatch.Draw(currentTexture, rect, Color.White);
            spriteBatch.Draw(currentTexture, rect , currentChunk, Color.White);
        }

        public void Update(Rectangle cursor)
        {
            if (rect.Intersects(cursor)) //mouse collision
            {
                if (Mouse.GetState().LeftButton == ButtonState.Pressed && clicked==false && unlocked==false)
                {
                    clicked = true;
                    ++Game1.ClickedCounter;
                    ++Game1.ShowedCards;                    

                    if (Game1.CurrentType == Type)
                    {
                        Unlock();
                        Game1.pairs++;
                    }
                    else
                    {
                        if (Game1.ShowedCards == 2)
                        {
                            --Game1.ClickedCounter;
                            Hide();
                            Game1.SelectedCard.Hide();
                        }
                        else
                        {
                            Show(); 
                        }
                    }
                }
            }
        }

        public void Hide()
        {
            Game1.ShowedCards = 0;
            Game1.CurrentType = -1;            
            currentChunk = null;
            currentTexture = reversTexture;
            clicked = false;
        }

        public void Show()
        {
            Game1.SelectedCard = this;
            Game1.CurrentType = Type;
            currentChunk = chunk;
            currentTexture = mainTexture;
        }

        public void Unlock()
        {
            unlocked = true;
            currentChunk = chunk;
            currentTexture = mainTexture;
            Game1.CurrentType = -1;
            Game1.SelectedCard = null;
            Game1.ShowedCards = 0;            

        }
    }
}