using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Threading;
using System.Windows.Forms;

namespace ZortlisWin
{
    public partial class MainWindow : Form
    {
        private Graphics grphPicBoxGameArea, grphPicBoxNextBlock;
        private Block blockinuse;
        private Thread dropthread;
        private int timeinterval, currentlevel, currentscore = 0;

        public MainWindow()
        {
            InitializeComponent();

            initiate();
        }

        private void initiate()
        {
            //Setup window components according to specified game area size from options
            int gameareawidthmulti = Options.getGameAreaWidth() * 30,
                gameareaheightmulti = Options.getGameAreaHeight() * 30;
            picboxGameArea.Size = new Size(gameareawidthmulti, gameareaheightmulti);
            picboxNextBlock.Location = new Point(gameareawidthmulti + 60, 50);
            nextLabel.Location = new Point(gameareawidthmulti + 60, 20);
            ClientSize = new Size(gameareawidthmulti + 220, gameareaheightmulti + 70);

            //Prepare picture boxes, POSSIBLE PROBLEM AREA?
            grphPicBoxGameArea = picboxGameArea.CreateGraphics();
            grphPicBoxGameArea.Clear(Color.White);
            grphPicBoxNextBlock = picboxNextBlock.CreateGraphics();
            grphPicBoxNextBlock.Clear(Color.White);

            blockinuse = new Block();

            //Make pile and clear it
            Pile.pile = new Square[Options.getGameAreaWidth(), Options.getGameAreaHeight() + 3];
            for (int i = 0; i < Pile.pile.GetLength(0); i++) {
                for (int j = 0; j < Pile.pile.GetLength(1); j++) {
                    Pile.pile[i, j] = null;
                }
            }

            //Starts up the falling time thread and initialises it's time interval and level
            dropthread = new Thread(timeflow);
            timeinterval = 2200 - (Options.getStartLevel() * 200);
            currentlevel = Options.getStartLevel();
            dropthread.Start();
        }

        private void timeflow()
        {
            while (true)
            {
                bool blockdropped = blockinuse.dropBlock();
                if (!blockdropped) blockinuse = Pile.settleBlock(blockinuse);
                if (blockinuse == null) break;
                Pile.checkCompleteLines();
                if (Pile.checkGameOver()) break;
                paint();

                Thread.Sleep(TimeSpan.FromMilliseconds(timeinterval));
            }
        }

        public void paint()
        {
            for (int i = 0; i < Pile.pile.GetLength(0); i++)
            {
                for (int j = 0; j < Pile.pile.GetLength(1) - 3; j++)
                {
                    if (Pile.pile[i, j] != null)
                    {
//POSSIBLE PROBLEM DRAWING TO GRAPHICS?
                        SolidBrush squarepen = new SolidBrush(Pile.pile[i, j].getColour());
                        grphPicBoxGameArea.FillRectangle(squarepen, i * 30, (Options.getGameAreaHeight() * 30) - (j * 30), 30, 30);
                    }
                }
            }
            Console.WriteLine("Am painting!");
        }

        private void MainWindow_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (dropthread.IsAlive) dropthread.Abort();
        }
    }
}