using System.Windows.Media;

namespace System.Windows.Forms
{
    public class ToolStripProfessionalRenderer : ToolStripRenderer
    {
        public ProfessionalColorTable ColorTable { get; }
        
        public ToolStripProfessionalRenderer(ProfessionalColorTable table)
        {
            ColorTable = table;
        }

        internal Brush GetBrush(Drawing.Color start, Drawing.Color middle, Drawing.Color end, int angle = 90)
        {
            if (start == end && start == middle)
                return Helper.GetBrush(start);
            
            var gradientStops = new GradientStopCollection();
            gradientStops.Add(new GradientStop(Helper.GetColor(start), 0));
            gradientStops.Add(new GradientStop(Helper.GetColor(middle), 0.5));
            gradientStops.Add(new GradientStop(Helper.GetColor(end), 1));
            return new LinearGradientBrush(gradientStops, angle);
        }

        internal Brush GetBrush(Drawing.Color color) => Helper.GetBrush(color);

        internal Brush GetBrush(Drawing.Color start, Drawing.Color end, int angle = 90, bool glassEffect = false)
        {
            if (start == end)
                return Helper.GetBrush(start);
            if (glassEffect)
            {
                var gradientStops = new GradientStopCollection();
                gradientStops.Add(new GradientStop(Helper.GetColor(start), 0));
                gradientStops.Add(new GradientStop(Helper.GetColor(start), 0.3));
                gradientStops.Add(new GradientStop(Helper.GetColor(end), 0.5));
                gradientStops.Add(new GradientStop(Helper.GetColor(end), 1));
                return new LinearGradientBrush(gradientStops, angle);
            }

            return new LinearGradientBrush(Helper.GetColor(start), Helper.GetColor(end), angle);
        }

        private ProfessionalColorTable ct => ColorTable;
        private Brush foreground;
        private Brush disabledForeground;
        private Brush toolBarBorder;
        private Brush toolBarHorizontalBackground;
        private Brush toolBarVerticalBackground;
        private Brush toolBarGripDark;
        private Brush toolBarGripLight;
        private Brush statusBarBackground;
        private Brush statusBarForeground;
        private Brush buttonStaticBackground;
        private Brush buttonStaticBorder;
        private Brush buttonMouseOverBackground;
        private Brush buttonMouseOverBorder;
        private Brush buttonCheckedBackground;
        private Brush buttonCheckedBorder;
        private Brush buttonArrowBackground;
        private Brush comboBoxStaticBackground;
        private Brush comboBoxStaticBorder;
        private Brush comboBoxStaticGlyph;
        private Brush comboBoxMouseOverBackground;
        private Brush comboBoxMouseOverBorder;
        private Brush comboBoxMouseOverGlyph;
        private Brush comboBoxDisabledBackground;
        private Brush comboBoxDisabledBorder;
        private Brush comboBoxDisabledGlyph;
        private Brush textBoxStaticBackground;
        private Brush separatorDark;
        private Brush separatorLight;
        private Brush menuStripStaticBackground;
        private Brush menuStaticBackground;
        private Brush menuStaticBorder;
        private Brush menuMarginBackground;
        private Brush menuQATBackground;
        private Brush menuItemCheckBackground;
        private Brush menuItemCheckBorder;
        private Brush menuItemHighlightBackground;
        private Brush menuItemHighlightBorder;
        private Brush topLevelMenuItemForeground;
        private Brush topLevelMenuItemDisabledForeground;

        internal Brush Foreground => foreground ??= GetBrush(ct.Foreground);
        internal Brush DisabledForeground => disabledForeground ??= GetBrush(ct.DisabledForeground);

        internal Brush ToolBarBorder => toolBarBorder ??= GetBrush(ct.ToolStripBorder);
        internal Brush ToolBarHorizontalBackground => toolBarHorizontalBackground ??= GetBrush(ct.ToolStripGradientBegin, ct.ToolStripGradientMiddle, ct.ToolStripGradientEnd);
        internal Brush ToolBarVerticalBackground => toolBarVerticalBackground ??= GetBrush(ct.ToolStripGradientBegin, ct.ToolStripGradientMiddle, ct.ToolStripGradientEnd, 0);
        internal Brush ToolBarGripDark => toolBarGripDark ??= GetBrush(ct.GripDark);
        internal Brush ToolBarGripLight => toolBarGripLight ??= GetBrush(ct.GripLight);

        internal Brush StatusBarBackground => statusBarBackground ??= GetBrush(ct.StatusStripGradientBegin, ct.StatusStripGradientEnd, ct.StatusStripGradientAngle, ct.StatusStripGradientGlass);
        internal Brush StatusBarForeground => statusBarForeground ??= GetBrush(ct.StatusStripForeground);

        internal Brush ButtonStaticBackground => buttonStaticBackground ??= GetBrush(Drawing.Color.Transparent);
        internal Brush ButtonStaticBorder => buttonStaticBorder ??= GetBrush(Drawing.Color.Transparent);
        internal Brush ButtonMouseOverBackground => buttonMouseOverBackground ??= GetBrush(ct.ButtonSelectedGradientBegin, ct.ButtonSelectedGradientMiddle, ct.ButtonSelectedGradientEnd);
        internal Brush ButtonMouseOverBorder => buttonMouseOverBorder ??= GetBrush(ct.ButtonSelectedHighlightBorder);
        internal Brush ButtonCheckedBackground => buttonCheckedBackground ??= GetBrush(ct.ButtonCheckedGradientBegin, ct.ButtonCheckedGradientMiddle, ct.ButtonCheckedGradientEnd);
        internal Brush ButtonCheckedBorder => buttonCheckedBorder ??= GetBrush(ct.ButtonSelectedHighlightBorder);
        internal Brush ButtonArrowBackground => buttonArrowBackground ??= GetBrush(ct.Foreground);

        internal Brush ComboBoxStaticBackground => comboBoxStaticBackground ??= GetBrush(ct.ComboBoxBackground);
        internal Brush ComboBoxStaticBorder => comboBoxStaticBorder ??= GetBrush(ct.ComboBoxStaticBorder);
        internal Brush ComboBoxStaticGlyph => comboBoxStaticGlyph ??= GetBrush(ct.Foreground);
        internal Brush ComboBoxMouseOverBackground => comboBoxMouseOverBackground ??= GetBrush(ct.ComboBoxButtonSelectedGradientBegin, ct.ComboBoxButtonSelectedGradientEnd);
        internal Brush ComboBoxMouseOverBorder => comboBoxMouseOverBorder ??= GetBrush(ct.ComboBoxBorder);
        internal Brush ComboBoxMouseOverGlyph => comboBoxMouseOverGlyph ??= GetBrush(ct.Foreground);
        internal Brush ComboBoxDisabledBackground => comboBoxDisabledBackground ??= GetBrush(ct.ComboBoxDisabledBackground);
        internal Brush ComboBoxDisabledBorder => comboBoxDisabledBorder ??= GetBrush(ct.ComboBoxStaticBorder);
        internal Brush ComboBoxDisabledGlyph => comboBoxDisabledGlyph ??= GetBrush(ct.DisabledForeground);
        internal Brush TextBoxStaticBackground => textBoxStaticBackground ??= GetBrush(ct.ComboBoxBackground);

        internal Brush SeparatorDark => separatorDark ??= GetBrush(ct.SeparatorDark);
        internal Brush SeparatorLight => separatorLight ??= GetBrush(ct.SeparatorLight);

        internal Brush MenuStripStaticBackground => menuStripStaticBackground ??= GetBrush(ct.MenuStripGradientBegin, ct.MenuStripGradientEnd, 0);
        internal Brush MenuStaticBackground => menuStaticBackground ??= GetBrush(ct.ToolStripDropDownBackground);
        internal Brush MenuStaticBorder => menuStaticBorder ??= GetBrush(ct.MenuBorder);
        internal Brush MenuMarginBackground => menuMarginBackground ??= GetBrush(ct.ImageMarginGradientBegin, ct.ImageMarginGradientMiddle, ct.ImageMarginGradientEnd, 0);
        internal Brush MenuQATBackground => menuQATBackground ??= GetBrush(ct.MenuQATGradientBegin, ct.MenuQATGradientMiddle, ct.MenuQATGradientEnd, 90);
        internal Brush MenuItemCheckBackground => menuItemCheckBackground ??= GetBrush(ct.MenuItemSelectedGradientBegin, ct.MenuItemSelectedGradientEnd);
        internal Brush MenuItemCheckBorder => menuItemCheckBorder ??= GetBrush(ct.MenuItemBorder);
        internal Brush MenuItemHighlightBackground => menuItemHighlightBackground ??= GetBrush(ct.MenuItemSelectedGradientBegin, ct.MenuItemSelectedGradientEnd, 90, ct.MenuItemGradientGlass); 
        internal Brush MenuItemHighlightBorder => menuItemHighlightBorder ??= GetBrush(ct.MenuItemBorder);
        internal Brush TopLevelMenuItemForeground => topLevelMenuItemForeground ??= GetBrush(ct.TopLevelMenuItemForeground);
        internal Brush TopLevelMenuItemDisabledForeground => topLevelMenuItemDisabledForeground ??= GetBrush(ct.TopLevelMenuItemDisabledForeground);
    }

}