using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

using MatterHackers.Agg;
using MatterHackers.Agg.Image;
using MatterHackers.Agg.UI;
using MatterHackers.Agg.OpenGlGui;
using MatterHackers.PolygonMesh;
using MatterHackers.RenderOpenGl;
using MatterHackers.VectorMath;
using MatterHackers.Agg.VertexSource;
using MatterHackers.MatterControl.DataStorage;

namespace MatterHackers.MatterControl
{
    public class TextImageWidget : GuiWidget
    {
        ImageBuffer image;
        protected RGBA_Bytes fillColor = new RGBA_Bytes(0, 0, 0, 0);
        protected RGBA_Bytes borderColor = new RGBA_Bytes(0, 0, 0, 0);
        protected double borderWidth = 1;
        protected double borderRadius = 0;

        public TextImageWidget(string label, RGBA_Bytes fillColor, RGBA_Bytes borderColor, RGBA_Bytes textColor, double borderWidth, BorderDouble margin, ImageBuffer image = null, int fontSize = 12, FlowDirection flowDirection = FlowDirection.LeftToRight, double height = 40, double width = 0, bool centerText = false)
            : base()
        {
            this.image = image;
            this.fillColor = fillColor;
            this.borderColor = borderColor;
            this.borderWidth = borderWidth;
            this.Margin = new BorderDouble(0);
            this.Padding = new BorderDouble(0);

            TextWidget textWidget = new TextWidget(label, pointSize: fontSize);
            ImageWidget imageWidget;

            FlowLayoutWidget container = new FlowLayoutWidget(flowDirection);

            if (centerText)
            {
                // make sure the contents are centered
                GuiWidget leftSpace = new GuiWidget(0, 1);
                leftSpace.HAnchor = Agg.UI.HAnchor.ParentLeftRight;
                container.AddChild(leftSpace);
            }

            if (image != null)
            {
                imageWidget = new ImageWidget(image);
                imageWidget.VAnchor = VAnchor.ParentCenter;
                container.AddChild(imageWidget);
            }

            if (label != "")
            {
                textWidget.VAnchor = VAnchor.ParentCenter;
                textWidget.TextColor = textColor;
                textWidget.Padding = new BorderDouble(3, 0);
                container.AddChild(textWidget);
            }

            if (centerText)
            {
                GuiWidget rightSpace = new GuiWidget(0, 1);
                rightSpace.HAnchor = Agg.UI.HAnchor.ParentLeftRight;
                container.AddChild(rightSpace);

                container.HAnchor = Agg.UI.HAnchor.ParentLeftRight | Agg.UI.HAnchor.FitToChildren;
            }
            container.VAnchor = Agg.UI.VAnchor.ParentCenter;

            container.MinimumSize = new Vector2(width, height);
            container.Margin = margin;
            this.AddChild(container);
            HAnchor = HAnchor.ParentLeftRight | HAnchor.FitToChildren;
            VAnchor = VAnchor.ParentCenter | Agg.UI.VAnchor.FitToChildren;
        }

        static NamedExecutionTimer drawTimer = new NamedExecutionTimer("TextImgBtnFctry");
        public override void OnDraw(Graphics2D graphics2D)
        {
            drawTimer.Start();
            if (borderColor.Alpha0To255 > 0)
            {
                RectangleDouble boarderRectangle = LocalBounds;
                boarderRectangle.Inflate(-borderWidth / 2);
                RoundedRect rectBorder = new RoundedRect(boarderRectangle, this.borderRadius);

                graphics2D.Render(new Stroke(rectBorder, borderWidth), borderColor);
            }

            if (this.fillColor.Alpha0To255 > 0)
            {
                RectangleDouble insideBounds = LocalBounds;
                insideBounds.Inflate(-this.borderWidth);
                RoundedRect rectInside = new RoundedRect(insideBounds, Math.Max(this.borderRadius - this.borderWidth, 0));

                graphics2D.Render(rectInside, this.fillColor);
            }

            base.OnDraw(graphics2D);
            drawTimer.Stop();
        }
    }

    public class TextImageButtonFactory
    {
        public BorderDouble Margin = new BorderDouble(6, 0);
        public RGBA_Bytes normalFillColor = new RGBA_Bytes(0, 0, 0, 0);
        public RGBA_Bytes hoverFillColor = new RGBA_Bytes(0, 0, 0, 50);
        public RGBA_Bytes pressedFillColor = new RGBA_Bytes(0, 0, 0, 0);
        public RGBA_Bytes disabledFillColor = new RGBA_Bytes(255, 255, 255, 50);

        public RGBA_Bytes normalBorderColor = new RGBA_Bytes(255, 255, 255, 0);
        public RGBA_Bytes hoverBorderColor = new RGBA_Bytes(0, 0, 0, 0);
        public RGBA_Bytes pressedBorderColor = new RGBA_Bytes(0, 0, 0, 0);
        public RGBA_Bytes disabledBorderColor = new RGBA_Bytes(0, 0, 0, 0);

        public RGBA_Bytes normalTextColor = RGBA_Bytes.White;
        public RGBA_Bytes hoverTextColor = RGBA_Bytes.White;
        public RGBA_Bytes pressedTextColor = RGBA_Bytes.White;
        public RGBA_Bytes disabledTextColor = RGBA_Bytes.White;
        public int fontSize = 12;
        public double borderWidth = 1;
        public bool invertImageLocation = false;
        FlowDirection flowDirection;
        public int FixedWidth = 0;
        public int FixedHeight = 40;

        public TooltipButton GenerateTooltipButton(string label, string normalImageName = null, string hoverImageName = null, string pressedImageName = null, string disabledImageName = null)
        {
            //Create button based on view container widget
            ButtonViewStates buttonViewWidget = getButtonView(label, normalImageName, hoverImageName, pressedImageName, disabledImageName);

            TooltipButton textImageButton = new TooltipButton(0, 0, buttonViewWidget);
            textImageButton.Margin = new BorderDouble(0);
            textImageButton.Padding = new BorderDouble(0);


            //Override the width if requested
            if (this.FixedWidth != 0)
            {
                buttonViewWidget.Width = this.FixedWidth;
                textImageButton.Width = this.FixedWidth;
            }

            //Override the height if requested
            buttonViewWidget.Height = this.FixedHeight;
            textImageButton.Height = this.FixedHeight;

            textImageButton.MouseEnterBounds += new EventHandler(onEnterTooltipButton);
            textImageButton.MouseLeaveBounds += new EventHandler(onExitTooltipButton);
            return textImageButton;
        }

        ImageBuffer LoadUpButtonImage(string imageName)
        {
            string path = Path.Combine(ApplicationDataStorage.Instance.ApplicationStaticDataPath, imageName);
            ImageBuffer buffer = new ImageBuffer(10, 10, 32, new BlenderBGRA());
            ImageBMPIO.LoadImageData(path, buffer);
            return buffer;
        }

        public GuiWidget GenerateGroupBoxLableWithEdit(string label, out Button editButton)
        {
            FlowLayoutWidget groupLableAndEditControl = new FlowLayoutWidget();

            editButton = new Button(0, 0, new ButtonViewThreeImage(LoadUpButtonImage("icon_edit_white.png"), LoadUpButtonImage("icon_edit_gray.png"), LoadUpButtonImage("icon_edit_Black.png")));
            editButton.Margin = new BorderDouble(2, -2, 2, 0);
            editButton.VAnchor = Agg.UI.VAnchor.ParentTop;
            TextWidget textLabel = new TextWidget(label, textColor: RGBA_Bytes.White);
            textLabel.VAnchor = Agg.UI.VAnchor.ParentTop;
            groupLableAndEditControl.AddChild(textLabel);
            groupLableAndEditControl.AddChild(editButton);

            return groupLableAndEditControl;
        }

        private void onEnterTooltipButton(object sender, EventArgs e)
        {
            TooltipButton button = (TooltipButton)sender;
            HelpTextWidget.Instance.ShowHoverText(button.tooltipText);
        }

        private void onExitTooltipButton(object sender, EventArgs e)
        {
            HelpTextWidget.Instance.HideHoverText();
        }

        public CheckBox GenerateCheckBoxButton(string label, string normalImageName = null, string normalToPressedImageName = null, string pressedImageName = null, string pressedToNormalImageName = null)
        {
            CheckBoxViewStates checkBoxButtonViewWidget = getCheckBoxButtonView(label, normalImageName, normalToPressedImageName, pressedImageName, pressedToNormalImageName);

            //Override the width if requested
            if (this.FixedWidth != 0)
            {
                checkBoxButtonViewWidget.Width = this.FixedWidth;
            }

            CheckBox textImageCheckBoxButton = new CheckBox(0, 0, checkBoxButtonViewWidget);
            textImageCheckBoxButton.Margin = new BorderDouble(0);
            textImageCheckBoxButton.Padding = new BorderDouble(0);

            return textImageCheckBoxButton;
        }

        public Button Generate(string label, string normalImageName = null, string hoverImageName = null, string pressedImageName = null, string disabledImageName = null, bool centerText = false)
        {
            //Create button based on view container widget
            ButtonViewStates buttonViewWidget = getButtonView(label, normalImageName, hoverImageName, pressedImageName, disabledImageName, centerText);
            Button textImageButton = new Button(0, 0, buttonViewWidget);
            textImageButton.Margin = new BorderDouble(0);
            textImageButton.Padding = new BorderDouble(0);

            //Override the width if requested
            if (this.FixedWidth != 0)
            {
                buttonViewWidget.Width = this.FixedWidth;
                textImageButton.Width = this.FixedWidth;
            }
            return textImageButton;
        }

        private string GetImageLocation(string imageName)
        {
            return Path.Combine(ApplicationDataStorage.Instance.ApplicationStaticDataPath, imageName);
        }

        private ButtonViewStates getButtonView(string label, string normalImageName = null, string hoverImageName = null, string pressedImageName = null, string disabledImageName = null, bool centerText = false)
        {
            if (hoverImageName == null)
            {
                hoverImageName = normalImageName;
            }

            if (pressedImageName == null)
            {
                pressedImageName = hoverImageName;
            }

            if (disabledImageName == null)
            {
                disabledImageName = normalImageName;
            }

            ImageBuffer normalImage = new ImageBuffer();
            ImageBuffer pressedImage = new ImageBuffer();
            ImageBuffer hoverImage = new ImageBuffer();
            ImageBuffer disabledImage = new ImageBuffer();

            if (normalImageName != null)
            {
                ImageBMPIO.LoadImageData(this.GetImageLocation(normalImageName), normalImage);
            }

            if (hoverImageName != null)
            {
                ImageBMPIO.LoadImageData(this.GetImageLocation(pressedImageName), pressedImage);
            }

            if (pressedImageName != null)
            {
                ImageBMPIO.LoadImageData(this.GetImageLocation(hoverImageName), hoverImage);
            }

            if (disabledImageName != null)
            {
                ImageBMPIO.LoadImageData(this.GetImageLocation(disabledImageName), disabledImage);
            }

            if (invertImageLocation)
            {
                flowDirection = FlowDirection.RightToLeft;
            }
            else
            {
                flowDirection = FlowDirection.LeftToRight;
            }

            //Create the multi-state button view
            ButtonViewStates buttonViewWidget = new ButtonViewStates(
                new TextImageWidget(label, normalFillColor, normalBorderColor, normalTextColor, borderWidth, Margin, normalImage, flowDirection: flowDirection, fontSize: this.fontSize, height: this.FixedHeight, centerText: centerText),
                new TextImageWidget(label, hoverFillColor, hoverBorderColor, hoverTextColor, borderWidth, Margin, hoverImage, flowDirection: flowDirection, fontSize: this.fontSize, height: this.FixedHeight, centerText: centerText),
                new TextImageWidget(label, pressedFillColor, pressedBorderColor, pressedTextColor, borderWidth, Margin, pressedImage, flowDirection: flowDirection, fontSize: this.fontSize, height: this.FixedHeight, centerText: centerText),
                new TextImageWidget(label, disabledFillColor, disabledBorderColor, disabledTextColor, borderWidth, Margin, disabledImage, flowDirection: flowDirection, fontSize: this.fontSize, height: this.FixedHeight, centerText: centerText)
            );
            return buttonViewWidget;
        }

        private CheckBoxViewStates getCheckBoxButtonView(string label, string normalImageName = null, string normalToPressedImageName = null, string pressedImageName = null, string pressedToNormalImageName = null)
        {
            ImageBuffer normalImage = new ImageBuffer();
            ImageBuffer pressedImage = new ImageBuffer();
            ImageBuffer normalToPressedImage = new ImageBuffer();
            ImageBuffer pressedToNormalImage = new ImageBuffer();

            if (normalImageName != null)
            {
                ImageBMPIO.LoadImageData(this.GetImageLocation(normalImageName), normalImage);
            }

            if (pressedImageName != null)
            {
                ImageBMPIO.LoadImageData(this.GetImageLocation(pressedImageName), pressedImage);
            }

            if (normalToPressedImageName != null)
            {
                ImageBMPIO.LoadImageData(this.GetImageLocation(normalToPressedImageName), normalToPressedImage);
            }

            if (pressedToNormalImageName != null)
            {
                ImageBMPIO.LoadImageData(this.GetImageLocation(pressedToNormalImageName), pressedToNormalImage);
            }

            if (normalToPressedImageName == null)
            {
                normalToPressedImage = pressedImage;
            }

            if (pressedImageName == null)
            {
                pressedImage = normalToPressedImage;
            }

            if (pressedToNormalImageName == null)
            {
                pressedToNormalImage = normalImage;
            }

            if (invertImageLocation)
            {
                flowDirection = FlowDirection.RightToLeft;
            }
            else
            {
                flowDirection = FlowDirection.LeftToRight;
            }

            //Create the multi-state button view
            GuiWidget normal = new TextImageWidget(label, normalFillColor, normalBorderColor, normalTextColor, borderWidth, Margin, normalImage, flowDirection: flowDirection, fontSize: this.fontSize, height: this.FixedHeight);
            GuiWidget normalHover = new TextImageWidget(label, hoverFillColor, normalBorderColor, hoverTextColor, borderWidth, Margin, normalImage, flowDirection: flowDirection, fontSize: this.fontSize, height: this.FixedHeight);
            GuiWidget switchNormalToPressed = new TextImageWidget(label, pressedFillColor, normalBorderColor, pressedTextColor, borderWidth, Margin, normalToPressedImage, flowDirection: flowDirection, fontSize: this.fontSize, height: this.FixedHeight);
            GuiWidget pressed = new TextImageWidget(label, pressedFillColor, pressedBorderColor, pressedTextColor, borderWidth, Margin, pressedImage, flowDirection: flowDirection, fontSize: this.fontSize, height: this.FixedHeight);
            GuiWidget pressedHover = new TextImageWidget(label, hoverFillColor, pressedBorderColor, hoverTextColor, borderWidth, Margin, pressedImage, flowDirection: flowDirection, fontSize: this.fontSize, height: this.FixedHeight);
            GuiWidget switchPressedToNormal = new TextImageWidget(label, normalFillColor, pressedBorderColor, normalTextColor, borderWidth, Margin, pressedToNormalImage, flowDirection: flowDirection, fontSize: this.fontSize, height: this.FixedHeight);
            GuiWidget disabled = new TextImageWidget(label, disabledFillColor, disabledBorderColor, disabledTextColor, borderWidth, Margin, normalImage, flowDirection: flowDirection, fontSize: this.fontSize, height: this.FixedHeight);

            CheckBoxViewStates checkBoxButtonViewWidget = new CheckBoxViewStates(normal, normalHover, switchNormalToPressed, pressed, pressedHover, switchPressedToNormal, disabled);
            return checkBoxButtonViewWidget;
        }

        public RadioButton GenerateRadioButton(string label, string iconImageName = null)
        {
            ImageBuffer iconImage = null;

            if (iconImageName != null)
            {
                iconImage = new ImageBuffer();
                ImageBMPIO.LoadImageData(this.GetImageLocation(iconImageName), iconImage);
            }

            BorderDouble internalMargin = new BorderDouble(0);
            TextImageWidget nomalState = new TextImageWidget(label, normalFillColor, normalBorderColor, normalTextColor, borderWidth, internalMargin, iconImage, flowDirection: flowDirection, fontSize: this.fontSize, height: this.FixedHeight, width: this.FixedWidth, centerText: true);
            TextImageWidget hoverState = new TextImageWidget(label, hoverFillColor, hoverBorderColor, hoverTextColor, borderWidth, internalMargin, iconImage, flowDirection: flowDirection, fontSize: this.fontSize, height: this.FixedHeight, width: this.FixedWidth, centerText: true);
            TextImageWidget checkingState = new TextImageWidget(label, hoverFillColor, RGBA_Bytes.White, hoverTextColor, borderWidth, internalMargin, iconImage, flowDirection: flowDirection, fontSize: this.fontSize, height: this.FixedHeight, width: this.FixedWidth, centerText: true);
            TextImageWidget checkedState = new TextImageWidget(label, pressedFillColor, RGBA_Bytes.White, pressedTextColor, borderWidth, internalMargin, iconImage, flowDirection: flowDirection, fontSize: this.fontSize, height: this.FixedHeight, width: this.FixedWidth, centerText: true);
            TextImageWidget disabledState = new TextImageWidget(label, disabledFillColor, disabledBorderColor, disabledTextColor, borderWidth, internalMargin, iconImage, flowDirection: flowDirection, fontSize: this.fontSize, height: this.FixedHeight, width: this.FixedWidth, centerText: true);
            RadioButtonViewStates checkBoxButtonViewWidget = new RadioButtonViewStates(nomalState, hoverState, checkingState, checkedState, disabledState);
            RadioButton radioButton = new RadioButton(checkBoxButtonViewWidget);
            radioButton.Margin = Margin;
            return radioButton;
        }
    }

    public class TooltipButton : Button
    {
        public string tooltipText = "";

        public TooltipButton(double x, double y, GuiWidget buttonView)
            :base(x, y, buttonView)
        {

        }
    }
}