using Azimuth;
using System.Drawing;

namespace Glass.Testbed
{
    /// <summary>
    /// The Testbed's widget catalog: the theme choices that would otherwise be copy/pasted to every call site.
    /// </summary>
    public static class Widgets
    {
        public static TextMaterial ButtonLabel(StringView text)
        {
            return new TextMaterial
            {
                Font = Fonts.Philosopher32,
                Text = text,
                TintColor = Color.Black,
                VerticalAlignment = Alignment.Vertical.Center,
                HorizontalAlignment = Alignment.Horizontal.Center,
            };
        }

        public static TextMaterial Caption(StringView text)
        {
            return new TextMaterial
            {
                Font = Fonts.Philosopher32,
                Text = text,
                TintColor = Color.White,
                Multiline = false,
                VerticalMargin = 0,
                HorizontalMargin = 0,
            };
        }

        /// <summary>
        /// A single line of text sitting inside a panel of its own, like a text field's contents or a status bar.
        /// </summary>
        public static TextMaterial FieldText(StringView text)
        {
            return new TextMaterial
            {
                Font = Fonts.Philosopher32,
                Text = text,
                TintColor = Color.FromArgb(24, 28, 34),
                Multiline = false,
            };
        }

        public static readonly Material TooltipBackground =
            UiPacksheetMaterials.Panel with { TintColor = Color.FromArgb(190, 196, 206) };

        /// <summary>
        /// Dark rather than Caption's white, since the tooltip background is a light slate.
        /// </summary>
        private static TextMaterial TooltipText(StringView text, bool multiline)
        {
            return new TextMaterial
            {
                Font = Fonts.Philosopher32,
                Text = text,
                TintColor = Color.FromArgb(24, 28, 34),
                Multiline = multiline,
                VerticalAlignment = Alignment.Vertical.Top,
                VerticalMargin = 0,
                HorizontalMargin = 0,
            };
        }

        /// <summary>
        /// A tooltip carrying a single line of text, sized to it.
        /// </summary>
        public static Tooltip Tooltip(StringView text)
        {
            return new Tooltip(TooltipBackground, TooltipText(text, multiline: false));
        }

        /// <summary>
        /// A tooltip carrying wrapped text, for more than fits comfortably on one line.
        /// </summary>
        public static Tooltip WrappedTooltip(StringView text, Scalar width)
        {
            return new Tooltip(
                TooltipBackground,
                TooltipText(text, multiline: true),
                Constraints.Loose(new Vector(width, Scalar.PositiveInfinity)));
        }

        public static TextMaterial Paragraph(StringView text, Alignment.Vertical verticalAlignment,
            TextOverflow overflowBehavior)
        {
            return new TextMaterial
            {
                Font = Fonts.Philosopher32,
                Text = text,
                TintColor = Color.Black,
                VerticalAlignment = verticalAlignment,
                OverflowBehavior = overflowBehavior,
            };
        }
    }
}