using System;

using System.Windows;
using System.Windows.Media;
using System.Collections.Generic;
using System.Windows.Controls;
using System.Windows.Media.Effects;
using System.Windows.Media.Animation;
using System.Reflection;


using C4IT.Logging;
using C4IT.Graphics;
using static C4IT.Logging.cLogManager;


namespace C4IT_CustomerPanel.libs
{

    class FormHelper
    {

        public static TaskBarLocation GetTaskBarLocation()
        {
            var Screens = System.Windows.Forms.Screen.AllScreens;
            if (System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Left > 0)
                return TaskBarLocation.Left;
            if (System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Top > 0)
                return TaskBarLocation.Top;
            if (System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Left == 0
              && System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Width < System.Windows.Forms.Screen.PrimaryScreen.Bounds.Width)
                return TaskBarLocation.Right;
            return TaskBarLocation.Bottom;
        }


        public static Point CenterOfScreen()
        {

            System.Drawing.Rectangle screenRect = System.Windows.Forms.Screen.PrimaryScreen.Bounds;
            // get the Screen Boundy
            Size clientSize = new Size(screenRect.Width / 2, screenRect.Height / 2); // set the size of the form
            Point location = new Point(screenRect.Width / 2 - clientSize.Width / 2, screenRect.Height / 2 - clientSize.Height / 2);
            return location;
        }

        public static System.Windows.Point GetLocation(int formWidth, int formHeight, double scaleDPI)
        {   
            var CM = MethodBase.GetCurrentMethod();
            LogMethodBegin(CM);
            try
            {
                TaskBarLocation taskBarloc = GetTaskBarLocation();
                System.Windows.Point p = new System.Windows.Point((int)(System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Right / scaleDPI) - formWidth,
                                   (int)(System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Bottom / scaleDPI) - formHeight);
                switch (taskBarloc)
                {
                    case TaskBarLocation.Bottom:
                        p.X = (int)(System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Right) - formWidth;
                        p.Y = (int)(System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Bottom) - formHeight;
                        break;
                    case TaskBarLocation.Top:
                        p.X = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Right - formWidth;
                        p.Y = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Top;
                        break;
                    case TaskBarLocation.Left:
                        p.X = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Left;
                        p.Y = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Bottom - formHeight;

                        break;
                    case TaskBarLocation.Right:
                        p.X = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Right - formWidth;
                        p.Y = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Bottom - formHeight;

                        break;
                }

                var lstLogs = new List<string>()
                {
                    "Window position determination:",
                    "  logical coordinates:",
                    string.Format("    Working area: ({0},{1})-({2},{3})", System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Left, System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Top, System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Right, System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Bottom),
                    string.Format("    Window size: {0},{1}", formWidth, formHeight),
                    string.Format("    Resuling taskbar location: {0}", taskBarloc.ToString()),
                    string.Format("    Resulting Window Position: {0},{1}", p.X, p.Y),
                    "  physical dimensions:",
                };

                foreach (var scr in System.Windows.Forms.Screen.AllScreens)
                {
                    var Scaling = NotifyerSupport.GetScaling(scr);
                    var DPI = NotifyerSupport.GetDPI(scr);
                    lstLogs.Add(String.Format("    {0}: ({1},{2})-({3},{4}), {5} DPI = x{6}", scr.DeviceName, scr.Bounds.Left, scr.Bounds.Top, scr.Bounds.Right, scr.Bounds.Bottom, DPI, Scaling));
                }

                cLogManager.DefaultLogger.LogList(LogLevels.Debug, lstLogs);


                return p;
            }
            catch (Exception E)
            {
                LogException(E);
                throw;
            }
            finally
            {
                LogMethodEnd(CM);
            }
        }

        public static DropShadowEffect GetDropShadow()
        {
            DropShadowEffect myDropShadowEffect = new DropShadowEffect();
            //DropShadowBitmapEffect myDropShadowEffect = new DropShadowBitmapEffect();

            // Set the color of the shadow to Black.
            Color myShadowColor = new Color
            {
                ScA = 1,
                ScB = 0,
                ScG = 0,
                ScR = 0
            };
            // Note that the alpha value is ignored by Color property. The Opacity property is used to control the alpha.
            myDropShadowEffect.Color = myShadowColor;

            // Set the direction of where the shadow is cast to 320 degrees.
            myDropShadowEffect.Direction = 320;

            // Set the depth of the shadow being cast.
            myDropShadowEffect.ShadowDepth = 5;

            // Set the shadow opacity to half opaque or in other words - half transparent.
            // The range is 0-1.
            myDropShadowEffect.Opacity = 0.5;
            return myDropShadowEffect;
        }


        public static System.Drawing.Icon GetNewsIcon(System.Drawing.Icon originalIcon)
        {
            
            System.Drawing.Graphics canvas;
            System.Drawing.Bitmap iconBitmap = new System.Drawing.Bitmap(32, 32);
            canvas = System.Drawing.Graphics.FromImage(iconBitmap);

            canvas.DrawIcon(originalIcon, 0, 0);

            System.Drawing.SolidBrush redBrush = new System.Drawing.SolidBrush(System.Drawing.Color.Green);

            // Create location and size of ellipse.
            int x = 16;
            int y = 16;
            int width = 16;
            int height = 16;

            // Fill ellipse on screen.
            canvas.FillEllipse(redBrush, x, y, width, height);
            canvas.Dispose();
            return System.Drawing.Icon.FromHandle(iconBitmap.GetHicon());
        }

        public static System.Drawing.Icon GetErrorIcon(System.Drawing.Icon originalIcon)
        {

            System.Drawing.Graphics canvas;
            System.Drawing.Bitmap iconBitmap = new System.Drawing.Bitmap(32, 32);
            System.Drawing.Bitmap errBitmap = new System.Drawing.Bitmap(32, 32);
            canvas = System.Drawing.Graphics.FromImage(iconBitmap);
            
            canvas.DrawIcon(originalIcon, 0, 0);
            
            System.Drawing.SolidBrush orangeBrush = new System.Drawing.SolidBrush(System.Drawing.Color.Red);

            // Create location and size of ellipse.
            int x = 16;
            int y = 16;
            int width = 16;
            int height = 16;
            
            
            // Fill ellipse on screen.
            canvas.FillEllipse(orangeBrush, x, y, width, height);
            
            canvas.Dispose();
            return System.Drawing.Icon.FromHandle(iconBitmap.GetHicon());
        }

        public static bool GetIsFlickering(UIElement element)
        {
            return (bool)element.GetValue(IsFlickeringProperty);
        }

        public static void FlickeringDisconnectImage(UIElement element, bool value)
        {
            element.Visibility = value ? Visibility.Visible : Visibility.Hidden;
            element.SetValue(IsFlickeringProperty, value);
        }

        public static readonly DependencyProperty IsFlickeringProperty =
            DependencyProperty.RegisterAttached("IsFlickering", typeof(bool), typeof(FormHelper), new UIPropertyMetadata(false, FlickeringDisconnectImageChanged));

        static void FlickeringDisconnectImageChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            if ((bool)e.NewValue)
                StartAnimation(d as UIElement);
            else
                StopAnimation(d as UIElement);
        }

        private static void StartAnimation(UIElement element)
        {
            DoubleAnimation da = new DoubleAnimation
            {
                From = 1,
                To = 0,
                Duration = new Duration(TimeSpan.FromSeconds(2)),
                AutoReverse = true,
                RepeatBehavior = RepeatBehavior.Forever
            };
            element.BeginAnimation(UIElement.OpacityProperty, da);
        }

        private static void StopAnimation(UIElement element)
        {
            element.BeginAnimation(UIElement.OpacityProperty, null);
        }


    }


}