using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace Paint
{
    /// <summary>
    /// Логика взаимодействия для MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            line_color = new Color();
            line_color.A = 255;
            line_color.R = (byte)color_a.Value;
            line_color.G = (byte)color_b.Value;
            line_color.B = (byte)color_c.Value;
            int line_size = (int)width_slider.Value;
        }
        int line_size;
        bool is_drawing = false;
        Point prev_mouse_position;
        Color line_color;

        private void Canvas_MouseDown(object sender, MouseButtonEventArgs e)
        {
            is_drawing = true;
            prev_mouse_position = e.GetPosition(this);
        }

        private void Canvas_MouseUp(object sender, MouseButtonEventArgs e)
        {
            is_drawing = false;
            if (circle_rb.IsChecked.Value)
            {
                Ellipse ellipse = new Ellipse();

                // Настройка границы
                ellipse.StrokeThickness = 1;
                ellipse.Stroke = new SolidColorBrush(line_color);

                // Настройка заливки
                ellipse.Fill = new SolidColorBrush(line_color);

                // Настройка ширины и высоты
                Point curr_mouse_position = e.GetPosition(this);
                if (prev_mouse_position.X > curr_mouse_position.X)
                {
                    double kek;
                    kek = curr_mouse_position.X;
                    curr_mouse_position.X = prev_mouse_position.X;
                    prev_mouse_position.X = kek;
                }
                if (prev_mouse_position.Y > curr_mouse_position.Y)
                {
                    double kek;
                    kek = curr_mouse_position.Y;
                    curr_mouse_position.Y = prev_mouse_position.Y;
                    prev_mouse_position.Y = kek;
                }
                ellipse.Width = Math.Abs(curr_mouse_position.X - prev_mouse_position.X);
                ellipse.Height = Math.Abs(curr_mouse_position.Y - prev_mouse_position.Y);

                // Настройка положения
                Canvas.SetLeft(ellipse, prev_mouse_position.X -20);
                Canvas.SetTop(ellipse, prev_mouse_position.Y - 110);

                // Добавление на Canvas с именем canvas
                canvas.Children.Add(ellipse);
            } else if (reactangle_rb.IsChecked.Value)
            {
                Rectangle rectangle = new Rectangle();

                // Настройка границы
                rectangle.StrokeThickness = 1;
                rectangle.Stroke = new SolidColorBrush(line_color);

                // Настройка заливки
                rectangle.Fill = new SolidColorBrush(line_color);

                // Настройка ширины и высоты
                Point curr_mouse_position = e.GetPosition(this);
                if (prev_mouse_position.X > curr_mouse_position.X)
                {
                    double kek;
                    kek = curr_mouse_position.X;
                    curr_mouse_position.X = prev_mouse_position.X;
                    prev_mouse_position.X = kek;
                }
                if (prev_mouse_position.Y > curr_mouse_position.Y)
                {
                    double kek;
                    kek = curr_mouse_position.Y;
                    curr_mouse_position.Y = prev_mouse_position.Y;
                    prev_mouse_position.Y = kek;
                }
                rectangle.Width = Math.Abs(curr_mouse_position.X - prev_mouse_position.X);
                rectangle.Height = Math.Abs(curr_mouse_position.Y - prev_mouse_position.Y);

                // Настройка положения
                Canvas.SetLeft(rectangle, prev_mouse_position.X - 20);
                Canvas.SetTop(rectangle, prev_mouse_position.Y - 110);

                // Добавление на Canvas с именем canvas
                canvas.Children.Add(rectangle);
            }
        }

        private void Canvas_MouseMove(object sender, MouseEventArgs e)
        {
            if (is_drawing)
            {
                if (pencil_rb.IsChecked.Value == true)
                {
                    line_color.R = (byte)color_a.Value;
                    line_color.G = (byte)color_b.Value;
                    line_color.B = (byte)color_c.Value;

                    Ellipse ellipse = new Ellipse();                                // Создание переменной точки
                    ellipse.StrokeThickness = 2;                                    // Установка толщины
                    ellipse.Stroke = Brushes.CornflowerBlue;                        // Установка цвета из фиксированного набора
                    Canvas.SetLeft(ellipse, e.GetPosition(this).X - 20 - 2 / 2);    // Установка координаты по X
                    Canvas.SetTop(ellipse, e.GetPosition(this).Y - 110 - 2 / 2);    // Установка координаты по Y
                    ellipse.Stroke = new SolidColorBrush(line_color);
                    canvas.Children.Add(ellipse);                                   // Добавление точки на canvas

                    Point curr_mouse_position = e.GetPosition(this);
                    Line line = new Line();                    // Создание переменной линии
                    line.StrokeThickness = 2;                  // Установка толщины
                    line.Stroke = Brushes.CornflowerBlue;      // Установка цвета из фиксированного набора
                    line.X1 = prev_mouse_position.X - 20;      // Установка координат начальной и конечной точки
                    line.Y1 = prev_mouse_position.Y - 110;
                    line.X2 = curr_mouse_position.X - 20;
                    line.Y2 = curr_mouse_position.Y - 110;
                    line.Stroke = new SolidColorBrush(line_color);
                    prev_mouse_position = curr_mouse_position; // Смещение координат
                    canvas.Children.Add(line);
                }else if (brush_rb.IsChecked.Value)
                {
                    line_color.R = (byte)color_a.Value;
                    line_color.G = (byte)color_b.Value;
                    line_color.B = (byte)color_c.Value;

                    Ellipse ellipse = new Ellipse();                                // Создание переменной точки
                    ellipse.StrokeThickness = line_size;                                    // Установка толщины
                    ellipse.Stroke = Brushes.CornflowerBlue;                        // Установка цвета из фиксированного набора
                    Canvas.SetLeft(ellipse, e.GetPosition(this).X - 20 - line_size / 2);    // Установка координаты по X
                    Canvas.SetTop(ellipse, e.GetPosition(this).Y - 110 - line_size / 2);    // Установка координаты по Y
                    ellipse.Stroke = new SolidColorBrush(line_color);
                    canvas.Children.Add(ellipse);                                   // Добавление точки на canvas

                    Point curr_mouse_position = e.GetPosition(this);
                    Line line = new Line();                    // Создание переменной линии
                    line.StrokeThickness = line_size;                  // Установка толщины
                    line.Stroke = Brushes.CornflowerBlue;      // Установка цвета из фиксированного набора
                    line.X1 = prev_mouse_position.X - 20;      // Установка координат начальной и конечной точки
                    line.Y1 = prev_mouse_position.Y - 110;
                    line.X2 = curr_mouse_position.X - 20;
                    line.Y2 = curr_mouse_position.Y - 110;
                    line.Stroke = new SolidColorBrush(line_color);
                    prev_mouse_position = curr_mouse_position; // Смещение координат
                    canvas.Children.Add(line);
                }else if (eraser_rb.IsChecked.Value)
                {
                    line_color.R = 255;
                    line_color.G = 255;
                    line_color.B = 255;
                    Ellipse ellipse = new Ellipse();                                // Создание переменной точки
                    ellipse.StrokeThickness = line_size;                                    // Установка толщины
                    ellipse.Stroke = Brushes.CornflowerBlue;                        // Установка цвета из фиксированного набора
                    Canvas.SetLeft(ellipse, e.GetPosition(this).X - 20 - line_size / 2);    // Установка координаты по X
                    Canvas.SetTop(ellipse, e.GetPosition(this).Y - 110 - line_size / 2);    // Установка координаты по Y
                    ellipse.Stroke = new SolidColorBrush(line_color);
                    canvas.Children.Add(ellipse);                                   // Добавление точки на canvas

                    Point curr_mouse_position = e.GetPosition(this);
                    Line line = new Line();                    // Создание переменной линии
                    line.StrokeThickness = line_size;                  // Установка толщины
                    line.Stroke = Brushes.CornflowerBlue;      // Установка цвета из фиксированного набора
                    line.X1 = prev_mouse_position.X - 20;      // Установка координат начальной и конечной точки
                    line.Y1 = prev_mouse_position.Y - 110;
                    line.X2 = curr_mouse_position.X - 20;
                    line.Y2 = curr_mouse_position.Y - 110;
                    line.Stroke = new SolidColorBrush(line_color);
                    prev_mouse_position = curr_mouse_position; // Смещение координат
                    canvas.Children.Add(line);
                }
            }
        }

        private void Width_slider_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
        {
            line_size = Convert.ToInt32(width_slider.Value);
        }

        private void Color_a_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
        {
            line_color.R = (byte)color_a.Value;
        }

        private void Color_b_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
        {
            line_color.B = (byte)color_b.Value;
        }

        private void Color_c_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
        {
            line_color.G = (byte)color_c.Value;
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            canvas.Children.Clear();
        }

        private void Pencil_rb_Checked(object sender, RoutedEventArgs e)
        {
            if (width_set_tb.Visibility == Visibility.Visible)
            {
                width_set_tb.Visibility = Visibility.Hidden;
            }
            if (width_slider.Visibility == Visibility.Visible)
            {
                width_slider.Visibility = Visibility.Hidden;
            }
            if (color_tb.Visibility == Visibility.Visible)
            {
                color_tb.Visibility = Visibility.Hidden;
            }
            if (color_a.Visibility == Visibility.Visible)
            {
                color_a.Visibility = Visibility.Hidden;
            }
            if (color_b.Visibility == Visibility.Visible)
            {
                color_b.Visibility = Visibility.Hidden;
            }
            if (color_c.Visibility == Visibility.Visible)
            {
                color_c.Visibility = Visibility.Hidden;
            }

        }

        private void Brush_rb_Checked(object sender, RoutedEventArgs e)
        {
            if (width_set_tb.Visibility == Visibility.Hidden)
            {
                width_set_tb.Visibility = Visibility.Visible;
            }
            if (width_slider.Visibility == Visibility.Hidden)
            {
                width_slider.Visibility = Visibility.Visible;
            }
            if (color_tb.Visibility == Visibility.Hidden)
            {
                color_tb.Visibility = Visibility.Visible;
            }
            if (color_a.Visibility == Visibility.Hidden)
            {
                color_a.Visibility = Visibility.Visible;
            }
            if (color_b.Visibility == Visibility.Hidden)
            {
                color_b.Visibility = Visibility.Visible;
            }
            if (color_c.Visibility == Visibility.Hidden)
            {
                color_c.Visibility = Visibility.Visible;
            }
        }

        private void Eraser_rb_Checked(object sender, RoutedEventArgs e)
        {
            if (width_set_tb.Visibility == Visibility.Hidden)
            {
                width_set_tb.Visibility = Visibility.Visible;
            }
            if (width_slider.Visibility == Visibility.Hidden)
            {
                width_slider.Visibility = Visibility.Visible;
            }
            if (color_tb.Visibility == Visibility.Visible)
            {
                color_tb.Visibility = Visibility.Hidden;
            }
            if (color_a.Visibility == Visibility.Visible)
            {
                color_a.Visibility = Visibility.Hidden;
            }
            if (color_b.Visibility == Visibility.Visible)
            {
                color_b.Visibility = Visibility.Hidden;
            }
            if (color_c.Visibility == Visibility.Visible)
            {
                color_c.Visibility = Visibility.Hidden;
            }
        }

        private void Reactangle_rb_Checked(object sender, RoutedEventArgs e)
        {
            if (width_set_tb.Visibility == Visibility.Visible)
            {
                width_set_tb.Visibility = Visibility.Hidden;
            }
            if (width_slider.Visibility == Visibility.Visible)
            {
                width_slider.Visibility = Visibility.Hidden;
            }
            if (color_tb.Visibility == Visibility.Hidden)
            {
                color_tb.Visibility = Visibility.Visible;
            }
            if (color_a.Visibility == Visibility.Hidden)
            {
                color_a.Visibility = Visibility.Visible;
            }
            if (color_b.Visibility == Visibility.Hidden)
            {
                color_b.Visibility = Visibility.Visible;
            }
            if (color_c.Visibility == Visibility.Hidden)
            {
                color_c.Visibility = Visibility.Visible;
            }
        }

        private void Circle_rb_Checked(object sender, RoutedEventArgs e)
        {
            if (width_set_tb.Visibility == Visibility.Visible)
            {
                width_set_tb.Visibility = Visibility.Hidden;
            }
            if (width_slider.Visibility == Visibility.Visible)
            {
                width_slider.Visibility = Visibility.Hidden;
            }
            if (color_tb.Visibility == Visibility.Hidden)
            {
                color_tb.Visibility = Visibility.Visible;
            }
            if (color_a.Visibility == Visibility.Hidden)
            {
                color_a.Visibility = Visibility.Visible;
            }
            if (color_b.Visibility == Visibility.Hidden)
            {
                color_b.Visibility = Visibility.Visible;
            }
            if (color_c.Visibility == Visibility.Hidden)
            {
                color_c.Visibility = Visibility.Visible;
            }
        }
    }
}