using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using System.Collections.Generic;
using System;

namespace Asteroids;

public class Scenes
{
    public int Scene;
    private gameui GU;
    private SpriteBatch _spriteBatch;
    private Game1 Game;
    private List<Button> Buttons;
    public bool wait;
    private bool mwait;
    private RenderTarget2D blackborder;
    public Scenes(Game1 Game, SpriteBatch _spriteBatch)
    {
        GU = GU = new gameui(Game.Content.Load<Texture2D>("background"), Game.PL);
        this._spriteBatch = _spriteBatch;
        this.Game = Game;
        Buttons = new List<Button>();
        blackborder = new RenderTarget2D(_spriteBatch.GraphicsDevice, (int)vars.ScreenSize.X, (int)vars.ScreenSize.Y);
        Rectangle[] box = new Rectangle[]{
            new Rectangle(0, 0, (int)vars.ScreenSize.X, vars.PlayArea.Y),
            new Rectangle(0, 0, vars.PlayArea.X, (int)vars.ScreenSize.Y),
            new Rectangle(0, vars.PlayArea.Bottom, (int)vars.ScreenSize.X, (int)vars.ScreenSize.Y-vars.PlayArea.Bottom),
            new Rectangle(vars.PlayArea.Right, 0, (int)vars.ScreenSize.X-vars.PlayArea.Right, (int)vars.ScreenSize.Y),
        };
        _spriteBatch.GraphicsDevice.SetRenderTarget(blackborder);
        _spriteBatch.GraphicsDevice.Clear(Color.Transparent);
        _spriteBatch.Begin();
        foreach(var item in box)
        {
            _spriteBatch.Draw(vars.ThePixel, item, null, Color.Black);
        }
        _spriteBatch.End();
        _spriteBatch.GraphicsDevice.SetRenderTarget(null);
        initscenes();
    }
    public void draw(GameTime gameTime)
    {
        switch (Scene)
        {
            case 0:
                U0();
                S0();
                break;
            case 1:
                U1(gameTime);
                S1(gameTime);
                break;
            case 2:
                U2();
                S2();
                break;
            default:
                Scene = 0;
                break;
        }
    }
    public void initscenes()
    {
        //S0
        Buttons.Add(new Button(0, new Rectangle((int)vars.ScreenSize.X / 2 - 250, 200, 500, 150), Color.Gray, Color.DarkGray, 0, "Start"));
        Buttons.Add(new Button(0, new Rectangle((int)vars.ScreenSize.X / 2 - 250, 400, 500, 150), Color.Gray, Color.DarkGray, 1, "Options"));
        Buttons.Add(new Button(0, new Rectangle((int)vars.ScreenSize.X / 2 - 250, 600, 500, 150), Color.Gray, Color.DarkGray, 2, "Exit"));
        //S2
        Buttons.Add(new Button(2, new Rectangle((int)vars.PlayArea.X + 20, vars.PlayArea.Y + 100, vars.PlayArea.Width - 40, 150), Color.Gray, Color.DarkGray, 3, "Continue"));
        Buttons.Add(new Button(2, new Rectangle((int)vars.PlayArea.X + 20, vars.PlayArea.Y + 300, vars.PlayArea.Width - 40, 150), Color.Gray, Color.DarkGray, 4, "Options"));
        Buttons.Add(new Button(2, new Rectangle((int)vars.PlayArea.X + 20, vars.PlayArea.Y + 500, vars.PlayArea.Width - 40, 150), Color.Gray, Color.DarkGray, 5, "Exit to menu"));
    }
    public void S0()
    {
        Game.GraphicsDevice.Clear(Color.Black);
        _spriteBatch.Begin();
        _spriteBatch.DrawString(vars.Font, "Asteroids", new Vector2(vars.ScreenSize.X / 2 - vars.Font.MeasureString("Asteroids").X / 2, 40), Color.White);
        foreach (var item in Buttons)
        {
            if (item.Key == 0)
            {
                item.draw(_spriteBatch);
            }
        }
        _spriteBatch.End();
    }
    public void U0()
    {
        if(Mouse.GetState().LeftButton == ButtonState.Released)
        {
            mwait = false;
        }
        if(mwait)
        {
            return;
        }
        foreach (var item in Buttons)
        {
            if (item.Key == 0)
            {
                item.Update();
                if (item.clicked)
                {
                    switch (item.id)
                    {
                        case 0:
                            Scene = 1;
                            break;
                        case 1:
                            Scene = 4;
                            break;
                        case 2:
                            Game.Exit();
                            break;
                        default:
                            break;
                    }
                }
            }
        }
    }
    public void S1(GameTime gameTime)
    {
        Game.GraphicsDevice.Clear(Color.Black);
        _spriteBatch.Begin();
        GU.draw(_spriteBatch);
        Game.PL.Draw(_spriteBatch, gameTime);
        Game.AS.Draw(_spriteBatch, gameTime);
        _spriteBatch.Draw(blackborder, Vector2.Zero, null, Color.White);
        GU.draw(_spriteBatch);
        _spriteBatch.End();
    }
    public void U1(GameTime gameTime)
    {
        Game.PL.input(gameTime);
        Rectangle[] boxes = new Rectangle[]{
            vars.PlayArea,
        };
        Game.PL.Collision(boxes);
        Game.AS.Update(_spriteBatch);
    }
    public void S2()
    {
        Game.GraphicsDevice.Clear(Color.Black);
        _spriteBatch.Begin();
        GU.draw(_spriteBatch);
        _spriteBatch.Draw(vars.ThePixel, vars.PlayArea, null, new Color(20, 20, 20));
        _spriteBatch.DrawString(vars.Font, "Pause", new Vector2(vars.PlayArea.X + vars.PlayArea.Width / 2 - vars.Font.MeasureString("Pause").X / 2, vars.PlayArea.Y + 20), Color.White);
        foreach (var item in Buttons)
        {
            if (item.Key == 2)
            {
                item.draw(_spriteBatch);
            }
        }
        _spriteBatch.Draw(blackborder, Vector2.Zero, null, Color.White);
        GU.draw(_spriteBatch);
        _spriteBatch.End();
    }
    public void U2()
    {
        if(Keyboard.GetState().IsKeyDown(Keys.Escape) && wait)
        {
            vars.Scens.Scene = 1;
            Game.PL.waitb = false;
        }
        if(Keyboard.GetState().IsKeyUp(Keys.Escape)){wait = true;}
        foreach (var item in Buttons)
        {
            if (item.Key == 2)
            {
                item.Update();
                if (item.clicked)
                {
                    switch (item.id)
                    {
                        case 3:
                            Scene = 1;
                            break;
                        case 4:
                            Scene = 3;
                            break;
                        case 5:
                            Scene = 0;
                            mwait = true;
                            break;
                        default:
                            break;
                    }
                }
            }
        }
    }
}
public class gameui
{
    public Texture2D Background;
    private float bgY;
    private Player PL;
    private int layer;
    public gameui(Texture2D bg, Player PL)
    {
        this.Background = bg;
        this.PL = PL;
        bgY = vars.PlayArea.Y;
    }
    public void draw(SpriteBatch _spriteBatch)
    {
        //Neaded variables
        int dimnes = 30;
        string[] pows = new string[PL.Ups.Count];
        for (int i = 0; i < pows.Length; i++)
        {
            pows[i] = PL.Ups[i].TimeLeft.ToString();
        }
        bgY++;
        if (bgY >= vars.PlayArea.Bottom)
        {
            bgY = vars.PlayArea.Y;
        }
        //the boxes
        if(layer == 0)
        {
            _spriteBatch.Draw(Background, new Rectangle(vars.PlayArea.X, (int)bgY, vars.PlayArea.Width, vars.PlayArea.Height), null, Color.White, 0f, Vector2.Zero, SpriteEffects.None, 0);
            _spriteBatch.Draw(Background, new Rectangle(vars.PlayArea.X, (int)bgY - vars.PlayArea.Height, vars.PlayArea.Width, vars.PlayArea.Height), null, Color.White, 0f, Vector2.Zero, SpriteEffects.None, 0);
            layer++;
            return;
        }
        _spriteBatch.Draw(vars.ThePixel, new Rectangle(50, 50, vars.PlayArea.X - 100, (int)vars.ScreenSize.Y - 100), null, new Color(dimnes, dimnes, dimnes));
        Rectangle rightbox = new Rectangle(vars.PlayArea.Right + 50, 50, (int)vars.ScreenSize.X - vars.PlayArea.Right - 100, (int)vars.ScreenSize.Y - 100);
        _spriteBatch.Draw(vars.ThePixel, rightbox, null, new Color(dimnes, dimnes, dimnes));
        //all the powerup things
        _spriteBatch.DrawString(vars.Font, "Power Up Times", new Vector2(100, 60), Color.RoyalBlue, 0f, Vector2.Zero, 1f, SpriteEffects.None, 0f);
        for (int i = 0; i < pows.Length; i++)
        {
            _spriteBatch.DrawString(vars.Font, pows[i], new Vector2(120, 130 + 50 * i), Color.RoyalBlue, 0f, Vector2.Zero, 0.5f, SpriteEffects.None, 0f);
        }
        //Points text
        _spriteBatch.DrawString(vars.Font, "Points", new Vector2(vars.PlayArea.Right + 100, 60), Color.RoyalBlue);
        _spriteBatch.Draw(vars.ThePixel, new Rectangle(vars.PlayArea.Right + 100, 130, (int)vars.ScreenSize.X - vars.PlayArea.Right - 200, 70), null, Color.Black);
        _spriteBatch.DrawString(vars.Font, vars.Points.ToString(), new Vector2(vars.PlayArea.Right + 110, 130), Color.RoyalBlue);
        //health Bar
        int wid = (int)vars.ScreenSize.X - vars.PlayArea.Right - 220;
        int inp = (int)(((float)PL.Health / (float)PL.maxHP) * wid);
        _spriteBatch.DrawString(vars.Font, "Health: " + PL.Health, new Vector2(vars.PlayArea.Right + 100, 250), Color.RoyalBlue);
        _spriteBatch.Draw(vars.ThePixel, new Rectangle(vars.PlayArea.Right + 100, 320, (int)vars.ScreenSize.X - vars.PlayArea.Right - 200, 100), null, Color.Black);
        _spriteBatch.Draw(vars.ThePixel, new Rectangle(vars.PlayArea.Right + 110, 330, wid, 80), null, Color.Red);
        _spriteBatch.Draw(vars.ThePixel, new Rectangle(vars.PlayArea.Right + 110, 330, inp, 80), null, Color.Green);
        //boost bar
        inp = (int)(((float)PL.boost / (float)PL.maxboost) * wid);
        _spriteBatch.DrawString(vars.Font, "Boost: " + MathF.Round(PL.boost), new Vector2(vars.PlayArea.Right + 100, 460), Color.RoyalBlue);
        _spriteBatch.Draw(vars.ThePixel, new Rectangle(vars.PlayArea.Right + 100, 530, (int)vars.ScreenSize.X - vars.PlayArea.Right - 200, 100), null, Color.Black);
        _spriteBatch.Draw(vars.ThePixel, new Rectangle(vars.PlayArea.Right + 110, 540, wid, 80), null, new Color(60, 60, 60));
        _spriteBatch.Draw(vars.ThePixel, new Rectangle(vars.PlayArea.Right + 110, 540, inp, 80), null, Color.SkyBlue);
        //music backboard
        Rectangle musice = new Rectangle(rightbox.X+25, 655, rightbox.Width-50, rightbox.Bottom-680);
        _spriteBatch.Draw(vars.ThePixel, musice, null , new Color(dimnes + 30, dimnes + 30, dimnes + 30));

        //musicbar
        int max = musice.Width-40;
        int widt = (int)((AudioEn.playedtime.TotalSeconds/AudioEn.songtime.TotalSeconds)*max);
        _spriteBatch.Draw(vars.ThePixel, new Rectangle(musice.X+10, musice.Bottom-120, musice.Width-20, 110), null, Color.Black);
        _spriteBatch.Draw(vars.ThePixel, new Rectangle(musice.X+20, musice.Bottom-110, musice.Width-40, 90), null, Color.DarkGray);
        _spriteBatch.Draw(vars.ThePixel, new Rectangle(musice.X+20, musice.Bottom-110, widt, 90), null, Color.Green);

        //music text
        _spriteBatch.DrawString(vars.Font, "Music", new Vector2(musice.X + musice.Width/2 - vars.Font.MeasureString("Music").X/2, musice.Y+25), Color.RoyalBlue);
        _spriteBatch.DrawString(vars.Font, "Current Nr: " + AudioEn.cursong, new Vector2(musice.Center.X - vars.Font.MeasureString("Current Nr: " + AudioEn.cursong).X/2, musice.Center.Y - vars.Font.MeasureString("Current Nr: " + AudioEn.cursong).Y/2), Color.RoyalBlue);
        string time = AudioEn.playedtime.ToString().Remove(0, 3).Remove(5) + " / " + AudioEn.songtime.ToString().Remove(0, 3).Remove(5);
        _spriteBatch.DrawString(vars.Font, time, new Vector2(musice.Center.X - vars.Font.MeasureString(time).X/2, musice.Bottom-vars.Font.MeasureString(time).Y-25), Color.RoyalBlue);
        layer = 0;
    }
}