using System.Drawing;
using System.Windows.Forms;

namespace FastReport.Utils
{
    /// <summary>
    /// The style of FastReport user interface.
    /// </summary>
    public enum UIStyle
    {
        /// <summary>
        /// Specifies the Microsoft Visual Studio 2005 style.
        /// </summary>
        VisualStudio2005,

        /// <summary>
        /// Specifies the Microsoft Office 2003 style (blue).
        /// </summary>
        Office2003,
    }

    public class TabStripColors
    {
        public Color GradientBegin;
        public Color GradientEnd;
        public Color Border;
        public int BorderWidth = 1;
        public Color ActiveTabForeground = SystemColors.WindowText;
        public Color ActiveTabBackground = SystemColors.Window;
        public Color InactiveTabForeground;
    }

    public class ToolWindowColors
    {
        public class CaptionColors
        {
            public Color GradientBegin;
            public Color GradientEnd;
            public Color ForeColor = SystemColors.WindowText;
            public Color HighlightButton;
        }

        public CaptionColors Caption { get; } = new CaptionColors();
        public TabStripColors TabStrip { get; } = new TabStripColors();
        public Color ControlBackColor;
    }

    public class ZoomControlColors
    {
        public Color GradientBegin;
        public Color GradientEnd;
        public Color Foreground;
    }

    public class WorkspaceColors : ToolWindowColors
    {
        public Color ForeColor;
        public Color WorkspaceBackColor;
        public Color GrayColor;
        public Color SplitterBackColor;

        public ZoomControlColors ZoomControl { get; } = new ZoomControlColors();
    }

    internal class FRColorTable : ProfessionalColorTable
    {
        public WorkspaceColors Workspace { get; } = new WorkspaceColors();
        public ToolWindowColors ToolWindow { get; set; }

        public FRColorTable()
        {
            ToolWindow = Workspace;
        }
    }

    internal class FRVS2005ColorTable : FRColorTable
    {
        public override Color ToolStripBorder
        {
            get { return SeparatorDark; }
        }

        public FRVS2005ColorTable()
        {
            UseSystemColors = true;

            Workspace.ForeColor = Color.FromArgb(60, 60, 60);
            Workspace.ControlBackColor = SystemColors.Control;
            Workspace.WorkspaceBackColor = Color.FromArgb(220, 220, 220);
            Workspace.GrayColor = Color.FromArgb(232, 232, 232);
            Workspace.SplitterBackColor = SystemColors.Control;

            Workspace.TabStrip.GradientBegin = Workspace.TabStrip.GradientEnd = SystemColors.Control;
            Workspace.TabStrip.Border = ToolStripBorder;
            Workspace.TabStrip.ActiveTabForeground = SystemColors.WindowText;
            Workspace.TabStrip.InactiveTabForeground = SystemColors.ControlDarkDark;

            Workspace.ZoomControl.GradientBegin = StatusStripGradientBegin;
            Workspace.ZoomControl.GradientEnd = StatusStripGradientEnd;
            Workspace.ZoomControl.Foreground = SystemColors.WindowText;

            ToolWindow.Caption.GradientBegin = ToolStripGradientMiddle;
            ToolWindow.Caption.GradientEnd = ToolStripGradientEnd;
            ToolWindow.Caption.HighlightButton = ButtonSelectedHighlight;
        }
    }

    internal class FROffice2003ColorTable : FRColorTable
    {
        private static Color _toolStripDropDownBackground = Color.FromArgb(250, 250, 250);
        private static Color _buttonPressedGradientBegin = Color.FromArgb(248, 181, 106);
        private static Color _buttonPressedGradientEnd = Color.FromArgb(255, 208, 134);
        private static Color _buttonPressedGradientMiddle = Color.FromArgb(251, 140, 60);
        private static Color _buttonSelectedGradientBegin = Color.FromArgb(255, 255, 222);
        private static Color _buttonSelectedGradientEnd = Color.FromArgb(255, 203, 136);
        private static Color _buttonSelectedGradientMiddle = Color.FromArgb(255, 225, 172);
        private static Color _menuItemSelectedGradientBegin = Color.FromArgb(255, 213, 103);
        private static Color _menuItemSelectedGradientEnd = Color.FromArgb(255, 228, 145);
        private static Color _checkBackground = Color.FromArgb(255, 227, 149);
        private static Color _gripDark = Color.FromArgb(111, 157, 217);
        private static Color _gripLight = Color.FromArgb(255, 255, 255);
        private static Color _imageMarginGradientBegin = Color.FromArgb(233, 238, 238);
        private static Color _menuBorder = Color.FromArgb(134, 134, 134);
        private static Color _overflowButtonGradientBegin = Color.FromArgb(167, 204, 251);
        private static Color _overflowButtonGradientEnd = Color.FromArgb(101, 147, 207);
        private static Color _overflowButtonGradientMiddle = Color.FromArgb(167, 204, 251);
        private static Color _menuToolBack = Color.FromArgb(191, 219, 255);
        private static Color _separatorDark = Color.FromArgb(154, 198, 255);
        private static Color _separatorLight = Color.FromArgb(255, 255, 255);
        private static Color _statusStripGradientBegin = Color.FromArgb(215, 229, 247);
        private static Color _statusStripGradientEnd = Color.FromArgb(172, 201, 238);
        private static Color _toolStripBorder = Color.FromArgb(111, 157, 217);
        private static Color _toolStripContentPanelGradientBegin = Color.FromArgb(164, 195, 235);
        private static Color _toolStripGradientBegin = Color.FromArgb(227, 239, 255);
        private static Color _toolStripGradientEnd = Color.FromArgb(152, 186, 230);
        private static Color _toolStripGradientMiddle = Color.FromArgb(222, 236, 255);
        private static Color _buttonSelectedHighlightBorder = Color.FromArgb(121, 153, 194);

        public override Color ButtonCheckedGradientBegin => _buttonPressedGradientBegin;
        public override Color ButtonCheckedGradientEnd => _buttonPressedGradientEnd;
        public override Color ButtonCheckedGradientMiddle => _buttonPressedGradientMiddle;
        public override Color ButtonPressedGradientBegin => _buttonPressedGradientBegin;
        public override Color ButtonPressedGradientEnd => _buttonPressedGradientEnd;
        public override Color ButtonPressedGradientMiddle => _buttonPressedGradientMiddle;
        public override Color ButtonSelectedGradientBegin => _buttonSelectedGradientBegin;
        public override Color ButtonSelectedGradientEnd => _buttonSelectedGradientEnd;
        public override Color ButtonSelectedGradientMiddle => _buttonSelectedGradientMiddle;
        public override Color ButtonSelectedHighlightBorder => _buttonSelectedHighlightBorder;
        public override Color CheckBackground => _checkBackground;
        public override Color GripDark => _gripDark;
        public override Color GripLight => _gripLight;
        public override Color ImageMarginGradientBegin => _imageMarginGradientBegin;
        public override Color MenuBorder => _menuBorder;
        public override Color MenuItemPressedGradientBegin => _toolStripGradientBegin;
        public override Color MenuItemPressedGradientEnd => _toolStripGradientEnd;
        public override Color MenuItemPressedGradientMiddle => _toolStripGradientMiddle;
        public override Color MenuItemSelectedGradientBegin => _menuItemSelectedGradientBegin;
        public override Color MenuItemSelectedGradientEnd => _menuItemSelectedGradientEnd;
        public override Color MenuStripGradientBegin => _menuToolBack;
        public override Color MenuStripGradientEnd => _menuToolBack;
        public override Color OverflowButtonGradientBegin => _overflowButtonGradientBegin;
        public override Color OverflowButtonGradientEnd => _overflowButtonGradientEnd;
        public override Color OverflowButtonGradientMiddle => _overflowButtonGradientMiddle;
        public override Color RaftingContainerGradientBegin => _menuToolBack;
        public override Color RaftingContainerGradientEnd => _menuToolBack;
        public override Color SeparatorDark => _separatorDark;
        public override Color SeparatorLight => _separatorLight;
        public override Color StatusStripGradientBegin => _statusStripGradientBegin;
        public override Color StatusStripGradientEnd => _statusStripGradientEnd;
        public override Color ToolStripBorder => _toolStripBorder;
        public override Color ToolStripContentPanelGradientBegin => _toolStripContentPanelGradientBegin;
        public override Color ToolStripContentPanelGradientEnd => _menuToolBack;
        public override Color ToolStripDropDownBackground => _toolStripDropDownBackground;
        public override Color ToolStripGradientBegin => _toolStripGradientBegin;
        public override Color ToolStripGradientEnd => _toolStripGradientEnd;
        public override Color ToolStripGradientMiddle => _toolStripGradientMiddle;
        public override Color ToolStripPanelGradientBegin => _menuToolBack;
        public override Color ToolStripPanelGradientEnd => _menuToolBack;

        public FROffice2003ColorTable()
        {
            Workspace.ForeColor = Color.FromArgb(60, 60, 60);
            Workspace.ControlBackColor = Color.FromArgb(182, 208, 248);
            Workspace.WorkspaceBackColor = Color.FromArgb(144, 153, 174);
            Workspace.GrayColor = Color.FromArgb(145, 180, 230);
            Workspace.SplitterBackColor = Workspace.ControlBackColor;

            Workspace.TabStrip.GradientBegin = ToolStripGradientBegin;
            Workspace.TabStrip.GradientEnd = ToolStripGradientEnd;
            Workspace.TabStrip.Border = ToolStripBorder;
            Workspace.TabStrip.ActiveTabForeground = SystemColors.WindowText;
            Workspace.TabStrip.InactiveTabForeground = SystemColors.ControlDarkDark;

            Workspace.ZoomControl.GradientBegin = StatusStripGradientBegin;
            Workspace.ZoomControl.GradientEnd = StatusStripGradientEnd;
            Workspace.ZoomControl.Foreground = Workspace.ForeColor;

            ToolWindow.Caption.GradientBegin = Color.FromArgb(154, 188, 234);
            ToolWindow.Caption.GradientEnd = Color.FromArgb(154, 188, 234);
            ToolWindow.Caption.HighlightButton = ButtonSelectedHighlight;
        }
    }

    /// <summary>
    /// Contains conversion methods between FastReport's UIStyle to various enums.
    /// </summary>
    public static class UIStyleUtils
    {
        private static ToolStripProfessionalRenderer FVS2005ToolStripRenderer;
        private static ToolStripProfessionalRenderer FOffice2003ToolStripRenderer;
        private static FRColorTable FVS2005ColorTable;
        private static FRColorTable FOffice2003ColorTable;

        internal const UIStyle DefaultStyle = UIStyle.Office2003;

        /// <summary>
        /// Gets UI style names.
        /// </summary>
        public static readonly string[] UIStyleNames = new string[] {
            "VisualStudio 2005",  
            "Office 2003",
        };

        /// <summary>
        /// Returns toolstrip renderer for the given style.
        /// </summary>
        /// <param name="style">UI style.</param>
        /// <returns>The renderer.</returns>
        public static ToolStripProfessionalRenderer GetToolStripRenderer(UIStyle style)
        {
            if (FVS2005ToolStripRenderer == null)
            {
                FVS2005ToolStripRenderer = new ToolStripProfessionalRenderer(GetColorTable(UIStyle.VisualStudio2005));
                //        FVS2005ToolStripRenderer.RoundedEdges = false;
            }

            if (FOffice2003ToolStripRenderer == null)
            {
                FOffice2003ToolStripRenderer = new ToolStripProfessionalRenderer(GetColorTable(UIStyle.Office2003));
                //        FOffice2003ToolStripRenderer.RoundedEdges = false;
            }

            switch (style)
            {
                case UIStyle.Office2003:
                    return FOffice2003ToolStripRenderer;
                default:
                    return FVS2005ToolStripRenderer;
            }
        }

        internal static FRColorTable GetColorTable(UIStyle style)
        {
            if (FVS2005ColorTable == null)
                FVS2005ColorTable = new FRVS2005ColorTable();

            if (FOffice2003ColorTable == null)
                FOffice2003ColorTable = new FROffice2003ColorTable();

            switch (style)
            {
                case UIStyle.Office2003:
                    return FOffice2003ColorTable;
                default:
                    return FVS2005ColorTable;
            }
        }

        internal static Color GetControlColor(UIStyle style) => GetColorTable(style).Workspace.ControlBackColor;

        internal static Color GetGrayColor(UIStyle style) => GetColorTable(style).Workspace.GrayColor;
    }
}