using System.Drawing;
using System.IO;
using System.Linq;
using System.Xml.Linq;
using WeifenLuo.WinFormsUI.Docking;

namespace WeifenLuo.WinFormsUI.ThemeVS2012
{
    public class VS2012PaletteFactory : IPaletteFactory
    {
        private const string Env = "Environment";
        private XDocument _xml;

        public VS2012PaletteFactory(byte[] file)
        {
            _xml = XDocument.Load(new StreamReader(new MemoryStream(file)));
        }

        public void Initialize(DockPanelColorPalette palette)
        {
            palette.AutoHideStripDefault.Background = ColorTranslatorFromHtml("AutoHideTabBackgroundBegin");
            palette.AutoHideStripDefault.Border = ColorTranslatorFromHtml("AutoHideTabBorder");
            palette.AutoHideStripDefault.Text = ColorTranslatorFromHtml("AutoHideTabText");

            palette.AutoHideStripHovered.Background = ColorTranslatorFromHtml("AutoHideTabMouseOverBackgroundBegin");
            palette.AutoHideStripHovered.Border = ColorTranslatorFromHtml("AutoHideTabMouseOverBorder");
            palette.AutoHideStripHovered.Text = ColorTranslatorFromHtml("AutoHideTabMouseOverText");

            palette.CommandBarMenuDefault.Background = ColorTranslatorFromHtml("CommandShelfHighlightGradientBegin");
            palette.CommandBarMenuDefault.Text = ColorTranslatorFromHtml("CommandBarTextActive");

            palette.CommandBarMenuPopupDefault.Arrow = ColorTranslatorFromHtml("CommandBarMenuSubmenuGlyph");
            palette.CommandBarMenuPopupDefault.BackgroundBottom = ColorTranslatorFromHtml("CommandBarMenuBackgroundGradientEnd");
            palette.CommandBarMenuPopupDefault.BackgroundTop = ColorTranslatorFromHtml("CommandBarMenuBackgroundGradientBegin");
            palette.CommandBarMenuPopupDefault.Border = ColorTranslatorFromHtml("CommandBarMenuBorder");
            palette.CommandBarMenuPopupDefault.Checkmark = ColorTranslatorFromHtml("CommandBarCheckBox");
            palette.CommandBarMenuPopupDefault.CheckmarkBackground = ColorTranslatorFromHtml("CommandBarSelectedIcon");
            palette.CommandBarMenuPopupDefault.IconBackground = ColorTranslatorFromHtml("CommandBarMenuIconBackground");
            palette.CommandBarMenuPopupDefault.Separator = ColorTranslatorFromHtml("CommandBarMenuSeparator");

            palette.CommandBarMenuPopupDisabled.Checkmark = ColorTranslatorFromHtml("CommandBarCheckBoxDisabled");
            palette.CommandBarMenuPopupDisabled.CheckmarkBackground = ColorTranslatorFromHtml("CommandBarSelectedIconDisabled");
            palette.CommandBarMenuPopupDisabled.Text = ColorTranslatorFromHtml("CommandBarTextInactive");

            palette.CommandBarMenuPopupHovered.Arrow = ColorTranslatorFromHtml("CommandBarMenuMouseOverSubmenuGlyph");
            palette.CommandBarMenuPopupHovered.Checkmark = ColorTranslatorFromHtml("CommandBarCheckBoxMouseOver");
            palette.CommandBarMenuPopupHovered.CheckmarkBackground = ColorTranslatorFromHtml("CommandBarHoverOverSelectedIcon");
            palette.CommandBarMenuPopupHovered.ItemBackground = ColorTranslatorFromHtml("CommandBarMenuItemMouseOver");
            palette.CommandBarMenuPopupHovered.Text = ColorTranslatorFromHtml("CommandBarMenuItemMouseOver", true);

            palette.CommandBarMenuTopLevelHeaderHovered.Background = ColorTranslatorFromHtml("CommandBarMouseOverBackgroundBegin");
            palette.CommandBarMenuTopLevelHeaderHovered.Border = ColorTranslatorFromHtml("CommandBarBorder");
            palette.CommandBarMenuTopLevelHeaderHovered.Text = ColorTranslatorFromHtml("CommandBarTextHover");

            palette.CommandBarToolbarDefault.Background = ColorTranslatorFromHtml("CommandBarGradientBegin");
            palette.CommandBarToolbarDefault.Border = ColorTranslatorFromHtml("CommandBarToolBarBorder");
            palette.CommandBarToolbarDefault.Grip = ColorTranslatorFromHtml("CommandBarDragHandle");
            palette.CommandBarToolbarDefault.OverflowButtonBackground = ColorTranslatorFromHtml("CommandBarOptionsBackground");
            palette.CommandBarToolbarDefault.OverflowButtonGlyph = ColorTranslatorFromHtml("CommandBarOptionsGlyph");
            palette.CommandBarToolbarDefault.Separator = ColorTranslatorFromHtml("CommandBarToolBarSeparator");
            palette.CommandBarToolbarDefault.SeparatorAccent = ColorTranslatorFromHtml("CommandBarToolBarSeparatorHighlight");
            palette.CommandBarToolbarDefault.Tray = ColorTranslatorFromHtml("CommandShelfBackgroundGradientBegin");

            palette.CommandBarToolbarButtonChecked.Background = ColorTranslatorFromHtml("CommandBarSelected");
            palette.CommandBarToolbarButtonChecked.Border = ColorTranslatorFromHtml("CommandBarSelectedBorder");
            palette.CommandBarToolbarButtonChecked.Text = ColorTranslatorFromHtml("CommandBarTextSelected");

            palette.CommandBarToolbarButtonCheckedHovered.Border = ColorTranslatorFromHtml("CommandBarHoverOverSelectedIconBorder");
            palette.CommandBarToolbarButtonCheckedHovered.Text = ColorTranslatorFromHtml("CommandBarTextHoverOverSelected");

            palette.CommandBarToolbarButtonDefault.Arrow = ColorTranslatorFromHtml("DropDownGlyph");

            palette.CommandBarToolbarButtonHovered.Arrow = ColorTranslatorFromHtml("DropDownMouseOverGlyph");
            palette.CommandBarToolbarButtonHovered.Separator = ColorTranslatorFromHtml("CommandBarSplitButtonSeparator");

            palette.CommandBarToolbarButtonPressed.Arrow = ColorTranslatorFromHtml("DropDownMouseDownGlyph");
            palette.CommandBarToolbarButtonPressed.Background = ColorTranslatorFromHtml("CommandBarMouseDownBackgroundBegin");
            palette.CommandBarToolbarButtonPressed.Text = ColorTranslatorFromHtml("CommandBarTextMouseDown");

            palette.CommandBarToolbarOverflowHovered.Background = ColorTranslatorFromHtml("CommandBarOptionsMouseOverBackgroundBegin");
            palette.CommandBarToolbarOverflowHovered.Glyph = ColorTranslatorFromHtml("CommandBarOptionsMouseOverGlyph");

            palette.CommandBarToolbarOverflowPressed.Background = ColorTranslatorFromHtml("CommandBarOptionsMouseDownBackgroundBegin");
            palette.CommandBarToolbarOverflowPressed.Glyph = ColorTranslatorFromHtml("CommandBarOptionsMouseDownGlyph");

            palette.OverflowButtonDefault.Glyph = ColorTranslatorFromHtml("DocWellOverflowButtonGlyph");

            palette.OverflowButtonHovered.Background = ColorTranslatorFromHtml("DocWellOverflowButtonMouseOverBackground");
            palette.OverflowButtonHovered.Border = ColorTranslatorFromHtml("DocWellOverflowButtonMouseOverBorder");
            palette.OverflowButtonHovered.Glyph = ColorTranslatorFromHtml("DocWellOverflowButtonMouseOverGlyph");

            palette.OverflowButtonPressed.Background = ColorTranslatorFromHtml("DocWellOverflowButtonMouseDownBackground");
            palette.OverflowButtonPressed.Border = ColorTranslatorFromHtml("DocWellOverflowButtonMouseDownBorder");
            palette.OverflowButtonPressed.Glyph = ColorTranslatorFromHtml("DocWellOverflowButtonMouseDownGlyph");

            palette.TabSelectedActive.Background = ColorTranslatorFromHtml("FileTabSelectedBorder");
            palette.TabSelectedActive.Button = ColorTranslatorFromHtml("FileTabButtonSelectedActiveGlyph");
            palette.TabSelectedActive.Text = ColorTranslatorFromHtml("FileTabSelectedText");

            palette.TabSelectedInactive.Background = ColorTranslatorFromHtml("FileTabInactiveBorder");
            palette.TabSelectedInactive.Button = ColorTranslatorFromHtml("FileTabButtonSelectedInactiveGlyph");
            palette.TabSelectedInactive.Text = ColorTranslatorFromHtml("FileTabInactiveText");

            palette.TabUnselected.Text = ColorTranslatorFromHtml("FileTabText");
            palette.TabUnselected.Background = ColorTranslatorFromHtml("FileTabBackground");

            palette.TabUnselectedHovered.Background = ColorTranslatorFromHtml("FileTabHotBorder");
            palette.TabUnselectedHovered.Button = ColorTranslatorFromHtml("FileTabHotGlyph");
            palette.TabUnselectedHovered.Text = ColorTranslatorFromHtml("FileTabHotText");

            palette.TabButtonSelectedActiveHovered.Background = ColorTranslatorFromHtml("FileTabButtonHoverSelectedActive");
            palette.TabButtonSelectedActiveHovered.Border = ColorTranslatorFromHtml("FileTabButtonHoverSelectedActiveBorder");
            palette.TabButtonSelectedActiveHovered.Glyph = ColorTranslatorFromHtml("FileTabButtonHoverSelectedActiveGlyph");

            palette.TabButtonSelectedActivePressed.Background = ColorTranslatorFromHtml("FileTabButtonDownSelectedActive");
            palette.TabButtonSelectedActivePressed.Border = ColorTranslatorFromHtml("FileTabButtonDownSelectedActiveBorder");
            palette.TabButtonSelectedActivePressed.Glyph = ColorTranslatorFromHtml("FileTabButtonDownSelectedActiveGlyph");

            palette.TabButtonSelectedInactiveHovered.Background = ColorTranslatorFromHtml("FileTabButtonHoverSelectedInactive");
            palette.TabButtonSelectedInactiveHovered.Border = ColorTranslatorFromHtml("FileTabButtonHoverSelectedInactiveBorder");
            palette.TabButtonSelectedInactiveHovered.Glyph = ColorTranslatorFromHtml("FileTabButtonHoverSelectedInactiveGlyph");

            palette.TabButtonSelectedInactivePressed.Background = ColorTranslatorFromHtml("FileTabButtonDownSelectedInactive");
            palette.TabButtonSelectedInactivePressed.Border = ColorTranslatorFromHtml("FileTabButtonDownSelectedInactiveBorder");
            palette.TabButtonSelectedInactivePressed.Glyph = ColorTranslatorFromHtml("FileTabButtonDownSelectedInactiveGlyph");

            palette.TabButtonUnselectedTabHoveredButtonHovered.Background = ColorTranslatorFromHtml("FileTabButtonHoverInactive");
            palette.TabButtonUnselectedTabHoveredButtonHovered.Border = ColorTranslatorFromHtml("FileTabButtonHoverInactiveBorder");
            palette.TabButtonUnselectedTabHoveredButtonHovered.Glyph = ColorTranslatorFromHtml("FileTabButtonHoverInactiveGlyph");

            palette.TabButtonUnselectedTabHoveredButtonPressed.Background = ColorTranslatorFromHtml("FileTabButtonDownInactive");
            palette.TabButtonUnselectedTabHoveredButtonPressed.Border = ColorTranslatorFromHtml("FileTabButtonDownInactiveBorder");
            palette.TabButtonUnselectedTabHoveredButtonPressed.Glyph = ColorTranslatorFromHtml("FileTabButtonDownInactiveGlyph");

            palette.MainWindowActive.Background = ColorTranslatorFromHtml("EnvironmentBackground");
            palette.MainWindowStatusBarDefault.Background = ColorTranslatorFromHtml("StatusBarDefault");
            palette.MainWindowStatusBarDefault.Highlight = ColorTranslatorFromHtml("StatusBarHighlight");
            palette.MainWindowStatusBarDefault.HighlightText = ColorTranslatorFromHtml("StatusBarHighlight", true);
            palette.MainWindowStatusBarDefault.ResizeGrip = ColorTranslatorFromHtml("MainWindowResizeGripTexture1");
            palette.MainWindowStatusBarDefault.ResizeGripAccent = ColorTranslatorFromHtml("MainWindowResizeGripTexture2");
            palette.MainWindowStatusBarDefault.Text = ColorTranslatorFromHtml("StatusBarText");

            palette.ToolWindowCaptionActive.Background = ColorTranslatorFromHtml("TitleBarActiveBorder");
            palette.ToolWindowCaptionActive.Button = ColorTranslatorFromHtml("ToolWindowButtonActiveGlyph");
            palette.ToolWindowCaptionActive.Grip = ColorTranslatorFromHtml("TitleBarDragHandleActive");
            palette.ToolWindowCaptionActive.Text = ColorTranslatorFromHtml("TitleBarActiveText");

            palette.ToolWindowCaptionInactive.Background = ColorTranslatorFromHtml("TitleBarInactive");
            palette.ToolWindowCaptionInactive.Button = ColorTranslatorFromHtml("ToolWindowButtonInactiveGlyph");
            palette.ToolWindowCaptionInactive.Grip = ColorTranslatorFromHtml("TitleBarDragHandle");
            palette.ToolWindowCaptionInactive.Text = ColorTranslatorFromHtml("TitleBarInactiveText");

            palette.ToolWindowCaptionButtonActiveHovered.Background = ColorTranslatorFromHtml("ToolWindowButtonHoverActive");
            palette.ToolWindowCaptionButtonActiveHovered.Border = ColorTranslatorFromHtml("ToolWindowButtonHoverActiveBorder");
            palette.ToolWindowCaptionButtonActiveHovered.Glyph = ColorTranslatorFromHtml("ToolWindowButtonHoverActiveGlyph");

            palette.ToolWindowCaptionButtonPressed.Background = ColorTranslatorFromHtml("ToolWindowButtonDown");
            palette.ToolWindowCaptionButtonPressed.Border = ColorTranslatorFromHtml("ToolWindowButtonDownBorder");
            palette.ToolWindowCaptionButtonPressed.Glyph = ColorTranslatorFromHtml("ToolWindowButtonDownActiveGlyph");

            palette.ToolWindowCaptionButtonInactiveHovered.Background = ColorTranslatorFromHtml("ToolWindowButtonHoverInactive");
            palette.ToolWindowCaptionButtonInactiveHovered.Border = ColorTranslatorFromHtml("ToolWindowButtonHoverInactiveBorder");
            palette.ToolWindowCaptionButtonInactiveHovered.Glyph = ColorTranslatorFromHtml("ToolWindowButtonHoverInactiveGlyph");

            palette.ToolWindowTabSelectedActive.Background = ColorTranslatorFromHtml("ToolWindowTabSelectedTab");
            palette.ToolWindowTabSelectedActive.Text = ColorTranslatorFromHtml("ToolWindowTabSelectedActiveText");

            palette.ToolWindowTabSelectedInactive.Background = palette.ToolWindowTabSelectedActive.Background;
            palette.ToolWindowTabSelectedInactive.Text = ColorTranslatorFromHtml("ToolWindowTabSelectedText");

            palette.ToolWindowTabUnselected.Text = ColorTranslatorFromHtml("ToolWindowTabText");
            palette.ToolWindowTabUnselected.Background = ColorTranslatorFromHtml("ToolWindowTabGradientBegin");

            palette.ToolWindowTabUnselectedHovered.Background = ColorTranslatorFromHtml("ToolWindowTabMouseOverBackgroundBegin");
            palette.ToolWindowTabUnselectedHovered.Text = ColorTranslatorFromHtml("ToolWindowTabMouseOverText");

            palette.ToolWindowSeparator = ColorTranslatorFromHtml("ToolWindowTabSeparator");
            palette.ToolWindowBorder = ColorTranslatorFromHtml("ToolWindowBorder");

            palette.DockTarget.Background = ColorTranslatorFromHtml("DockTargetBackground");
            palette.DockTarget.Border = ColorTranslatorFromHtml("DockTargetBorder");
            palette.DockTarget.ButtonBackground = ColorTranslatorFromHtml("DockTargetButtonBackgroundBegin");
            palette.DockTarget.ButtonBorder = ColorTranslatorFromHtml("DockTargetButtonBorder");
            palette.DockTarget.GlyphBackground = ColorTranslatorFromHtml("DockTargetGlyphBackgroundBegin");
            palette.DockTarget.GlyphArrow = ColorTranslatorFromHtml("DockTargetGlyphArrow");
            palette.DockTarget.GlyphBorder = ColorTranslatorFromHtml("DockTargetGlyphBorder");
        }

        private Color ColorTranslatorFromHtml(string name, bool foreground = false)
        {
            var color = _xml.Root.Element("Theme")
                .Elements("Category").FirstOrDefault(item => item.Attribute("Name").Value == Env)?
                .Elements("Color").FirstOrDefault(item => item.Attribute("Name").Value == name)?
                .Element(foreground ? "Foreground" : "Background").Attribute("Source").Value;
            if (color == null)
            {
                return Color.Transparent;
            }

            return ColorTranslator.FromHtml($"#{color}");
        }
    }
}