using Microsoft.Win32;
using RBG.Helpers;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
using System.Windows.Media;
using System.Windows.Media.Effects;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace RBG_Server.WPF
{
    
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        // Global Styles etc
        private static readonly SolidColorBrush borderBrush = new(Color.FromRgb(255, 0, 0));


        GameServer gameServer;
        // Game board bytes
        byte[] gameBoard;

        public MainWindow()
        {
            InitializeComponent();
        }

        /// <summary>
        /// Draws the overlay grid, clearing existing elements if necessary
        /// </summary>
        //private void RedrawGrid()
        //{
            
        //    PreviewImageOverlay.RowDefinitions.Clear();
        //    PreviewImageOverlay.ColumnDefinitions.Clear();
        //    PreviewImageOverlay.Children.Clear();
        //    for (int i = 0; i < NumberOfColumns.Value; i++)
        //    {
        //        PreviewImageOverlay.ColumnDefinitions.Add(new ColumnDefinition());
        //    }
        //    for (int i = 0; i < NumberOfRows.Value; i++)
        //    {
        //        PreviewImageOverlay.RowDefinitions.Add(new RowDefinition());
        //    }
        //    // Draw the overlay
        //    Rectangle overlay = new();
        //    overlay.Fill = new SolidColorBrush(Color.FromArgb(128, 0, 128, 255));
        //    _ = PreviewImageOverlay.Children.Add(overlay);
        //    Grid.SetRow(overlay, (int)ZoomBoxStartRow.Value);
        //    Grid.SetColumn(overlay, (int)ZoomBoxStartColumn.Value);
        //    Grid.SetRowSpan(overlay, (int)ZoomBoxSpan.Value);
        //    Grid.SetColumnSpan(overlay, (int)ZoomBoxSpan.Value);
        //    // Draw the starting position
        //    overlay = new();
        //    overlay.Fill = new SolidColorBrush(Color.FromArgb(64, 0, 255, 128));
        //    _ = PreviewImageOverlay.Children.Add(overlay);
        //    Grid.SetRow(overlay, (int)StartingRow.Value);
        //    Grid.SetColumn(overlay, (int)StartingColumn.Value);
        //    // Draw grids onto the preview image
        //    for (int v = 0; v < PreviewImageOverlay.RowDefinitions.Count; v++)
        //    {
        //        for (int u = 0; u < PreviewImageOverlay.ColumnDefinitions.Count; u++)
        //        {
        //            Border border = new();
        //            border.BorderBrush = borderBrush;
        //            border.BorderThickness = new Thickness(2);
        //            _ = PreviewImageOverlay.Children.Add(border);
        //            Grid.SetRow(border, v);
        //            Grid.SetColumn(border, u);
        //        }
        //    }
        //}

        /// <summary>
        /// Generates the game board overlay grid
        /// The grid should be appropriately sized before using this
        /// </summary>
        private void GenerateGameBoard(List<Player> players)
        {
            // Create an array of BoardCells Rows*Columns in size
            BoardCell[] cells = new BoardCell[PreviewImageOverlay.RowDefinitions.Count * PreviewImageOverlay.ColumnDefinitions.Count];
            List<Player> unaddedPlayers = players;
            for (int i = 0; i < cells.Length; i++)
            {
                cells[i] = new BoardCell();
                Queue<Player> removedPlayers = new();
                foreach (Player item in unaddedPlayers)
                {
                    if ((item.Row * PreviewImageOverlay.ColumnDefinitions.Count) + item.Column == i)
                    {
                        removedPlayers.Enqueue(item);
                    }
                }
                while (removedPlayers.Count > 0)
                {
                    Player removed = removedPlayers.Dequeue();
                    _ = unaddedPlayers.Remove(removed);
                    _ = cells[i].CellStack.Children.Add(removed);
                }
                _ = PreviewImageOverlay.Children.Add(cells[i]);
                cells[i].CellButton.Tag = new Tuple<int, int>(i % PreviewImageOverlay.ColumnDefinitions.Count, i / PreviewImageOverlay.ColumnDefinitions.Count);
                Grid.SetColumn(cells[i], i % PreviewImageOverlay.ColumnDefinitions.Count);
                Grid.SetRow(cells[i], i / PreviewImageOverlay.ColumnDefinitions.Count);
            }
        }

        /// <summary>
        /// Represents a cell on the board; as a grid
        /// </summary>
        class BoardCell : Grid
        {
            // brush the button should have
            
            static SolidColorBrush buttonBrush = new(Color.FromArgb(1, 255, 255, 255));
            

            // Each cell has a uniform grid that 
            public UniformGrid CellStack { get; } = new()
            {
                Columns = 4,
                HorizontalAlignment = HorizontalAlignment.Stretch,
                VerticalAlignment = VerticalAlignment.Stretch
            };
            public Button CellButton { get; } = new()
            {
                Content = "",
            };
            Queue<Player> removedPlayers = new();
            // Grid parentGrid; // Parent grid is now this itself

            public BoardCell() : base()
            {
                CellButton.MouseEnter += CellButton_MouseEnter;
                CellButton.MouseLeave += CellButton_MouseLeave;
                CellButton.Click += CellButton_Click;
                CellButton.Background = buttonBrush;
                CellStack.Columns = 2;
                CellStack.VerticalAlignment = VerticalAlignment.Top;
                // Add our grid and button
                _ = Children.Add(CellStack);
                _ = Children.Add(CellButton);
            }

            private void CellButton_Click(object sender, RoutedEventArgs e)
            {
                Button cellButton = sender as Button;
                System.Diagnostics.Debug.WriteLine("Button at {0}, {1} was clicked", ((Tuple<int, int>)cellButton.Tag).Item2, ((Tuple<int, int>)cellButton.Tag).Item1);
            }

            private void CellButton_MouseLeave(object sender, System.Windows.Input.MouseEventArgs e)
            {
                //throw new NotImplementedException();
            }

            private void CellButton_MouseEnter(object sender, System.Windows.Input.MouseEventArgs e)
            {
                //throw new NotImplementedException();
            }
        }                
    }

}