using AtomUI.Theme.Styling;
using AtomUI.Theme.TokenSystem;
using Avalonia;
using Avalonia.Media;

namespace AtomUI.Controls;

[ControlDesignToken]
internal class MenuToken : AbstractControlDesignToken
{
    public const string ID = "Menu";

    public MenuToken()
        : base(ID)
    {
    }

    /// <summary>
    /// 菜单的圆角
    /// </summary>
    public CornerRadius MenuPopupBorderRadius { get; set; }

    /// <summary>
    /// 菜单 Popup 阴影
    /// </summary>
    public BoxShadows MenuPopupBoxShadows { get; set; }

    /// <summary>
    /// 菜单内容边距
    /// </summary>
    public Thickness MenuPopupContentPadding { get; set; }

    /// <summary>
    /// 菜单 Popup 最小宽度
    /// </summary>
    public double MenuPopupMinWidth { get; set; }

    /// <summary>
    /// 菜单 Popup 最大宽度
    /// </summary>
    public double MenuPopupMaxWidth { get; set; }

    /// <summary>
    /// 菜单 Popup 最大高度
    /// </summary>
    public double MenuPopupMaxHeight { get; set; }

    /// <summary>
    /// 分离菜单项的高度，这个用于菜单中快捷功能的图标显示
    /// TODO 暂时还没实现，但是最终会实现
    /// </summary>
    public double MenuTearOffHeight { get; set; }

    /// <summary>
    /// 弹出框背景色
    /// </summary>
    public Color MenuBgColor { get; set; }

    /// <summary>
    /// 菜单项文字颜色
    /// </summary>
    public Color ItemColor { get; set; }

    /// <summary>
    /// 快捷键颜色
    /// </summary>
    public Color KeyGestureColor { get; set; }

    /// <summary>
    /// 菜单项边距
    /// </summary>
    public Thickness ItemMargin { get; set; }

    /// <summary>
    /// 菜单项文字悬浮颜色
    /// </summary>
    public Color ItemHoverColor { get; set; }

    /// <summary>
    /// 菜单项文字禁用颜色
    /// </summary>
    public Color ItemDisabledColor { get; set; }

    /// <summary>
    /// 危险菜单项文字颜色
    /// </summary>
    public Color DangerItemColor { get; set; }

    /// <summary>
    /// 危险菜单项文字悬浮颜色
    /// </summary>
    public Color DangerItemHoverColor { get; set; }

    /// <summary>
    /// 菜单项背景色
    /// </summary>
    public Color ItemBg { get; set; }

    /// <summary>
    /// 菜单项悬浮态背景色
    /// </summary>
    public Color ItemHoverBg { get; set; }

    /// <summary>
    /// 菜单项高度
    /// </summary>
    public double ItemHeight { get; set; }

    /// <summary>
    /// 图标尺寸
    /// </summary>
    public double ItemIconSize { get; set; }

    /// <summary>
    /// 图标与文字间距
    /// </summary>
    public double ItemIconMarginInlineEnd { get; set; }

    /// <summary>
    /// 菜单项的圆角
    /// </summary>
    public CornerRadius ItemBorderRadius { get; set; }

    /// <summary>
    /// 菜单项横向内间距
    /// </summary>
    public Thickness ItemPaddingInline { get; set; }

    /// <summary>
    /// 顶层菜单项颜色
    /// </summary>
    public Color TopLevelItemColor { get; set; }

    /// <summary>
    /// 顶层菜单项选中颜色
    /// </summary>
    public Color TopLevelItemSelectedColor { get; set; }

    /// <summary>
    /// 顶层菜单项鼠标放上去的颜色
    /// </summary>
    public Color TopLevelItemHoverColor { get; set; }

    /// <summary>
    /// 顶层菜单项背景色
    /// </summary>
    public Color TopLevelItemBg { get; set; }

    /// <summary>
    /// 顶层菜单项选中时背景色
    /// </summary>
    public Color TopLevelItemSelectedBg { get; set; }

    /// <summary>
    /// 顶层菜单项鼠标放上去背景色
    /// </summary>
    public Color TopLevelItemHoverBg { get; set; }

    /// <summary>
    /// 顶层菜单项小号圆角
    /// </summary>
    public CornerRadius TopLevelItemBorderRadiusSM { get; set; }

    /// <summary>
    /// 顶层菜单项圆角
    /// </summary>
    public CornerRadius TopLevelItemBorderRadius { get; set; }

    /// <summary>
    /// 顶层菜单项大号圆角
    /// </summary>
    public CornerRadius TopLevelItemBorderRadiusLG { get; set; }

    /// <summary>
    /// 顶层菜单项小号内间距
    /// </summary>
    public Thickness TopLevelItemPaddingSM { get; set; }

    /// <summary>
    /// 顶层菜单项间距
    /// </summary>
    public Thickness TopLevelItemPadding { get; set; }

    /// <summary>
    /// 顶层菜单项大号内间距
    /// </summary>
    public Thickness TopLevelItemPaddingLG { get; set; }

    /// <summary>
    /// 顶层菜单项小号字体
    /// </summary>
    public double TopLevelItemFontSizeSM { get; set; } = double.NaN;

    /// <summary>
    /// 顶层菜单项字体
    /// </summary>
    public double TopLevelItemFontSize { get; set; } = double.NaN;

    /// <summary>
    /// 顶层菜单项大号字体
    /// </summary>
    public double TopLevelItemFontSizeLG { get; set; } = double.NaN;

    /// <summary>
    /// 顶层菜单项内容字体行高
    /// </summary>
    public double TopLevelItemLineHeight { get; set; } = double.NaN;

    /// <summary>
    /// 大号顶层菜单项内容字体行高
    /// </summary>
    public double TopLevelItemLineHeightLG { get; set; } = double.NaN;

    /// <summary>
    /// 小号顶层菜单项内容字体行高
    /// </summary>
    public double TopLevelItemLineHeightSM { get; set; } = double.NaN;

    /// <summary>
    /// 顶层弹出菜单，距离顶层菜单项的边距
    /// </summary>
    public double TopLevelItemPopupMarginToAnchor { get; set; }

    /// <summary>
    /// 滚动按钮 Icon 大小
    /// </summary>
    public double ScrollButtonIconSize { get; set; }

    /// <summary>
    /// 滚动按内边距
    /// </summary>
    public Thickness ScrollButtonPadding { get; set; }

    /// <summary>
    /// 滚动按内边距
    /// </summary>
    public Thickness ScrollButtonMargin { get; set; }

    /// <summary>
    /// 菜单分割项的高度
    /// </summary>
    public double SeparatorItemHeight { get; set; }

    protected internal override void CalculateFromAlias()
    {
        base.CalculateFromAlias();

        var colorTextDisabled  = SharedToken.ColorTextDisabled;
        var colorError         = SharedToken.ColorError;
        var colorTextSecondary = SharedToken.ColorTextQuaternary;
        var colorBgContainer   = SharedToken.ColorBgContainer;
        var colorBgElevated    = SharedToken.ColorBgElevated;
        var colorBgTextHover   = SharedToken.ColorBgTextHover;
        var padding            = SharedToken.UniformlyPadding;
        var controlHeight      = SharedToken.ControlHeight;
        var controlHeightSM    = SharedToken.ControlHeightSM;
        var controlHeightLG    = SharedToken.ControlHeightLG;

        var fontSize   = SharedToken.FontSize;
        var fontSizeLG = SharedToken.FontSizeLG;

        KeyGestureColor  = colorTextSecondary;
        ItemBorderRadius = SharedToken.BorderRadius;
        ItemColor        = SharedToken.ColorText;
        ItemHoverColor   = ItemColor;
        ItemBg           = colorBgElevated;
        ItemHoverBg      = colorBgTextHover;
        ItemMargin       = new Thickness(0, 0, SharedToken.UniformlyMarginXXS, 0);

        // Disabled
        ItemDisabledColor = colorTextDisabled;

        // Danger
        DangerItemColor      = colorError;
        DangerItemHoverColor = colorError;

        ItemHeight  = controlHeightSM;
        MenuBgColor = SharedToken.ColorBgElevated;

        ItemPaddingInline       = new Thickness(padding, SharedToken.UniformlyPaddingXXS);
        ItemIconSize            = SharedToken.IconSize;
        ItemIconMarginInlineEnd = controlHeightSM - fontSize;

        TopLevelItemColor         = SharedToken.ColorText;
        TopLevelItemSelectedColor = SharedToken.ColorTextSecondary;
        TopLevelItemHoverColor    = SharedToken.ColorTextSecondary;

        TopLevelItemBg         = colorBgContainer;
        TopLevelItemHoverBg    = colorBgTextHover;
        TopLevelItemSelectedBg = colorBgTextHover;

        TopLevelItemBorderRadiusSM = SharedToken.BorderRadiusSM;
        TopLevelItemBorderRadius   = SharedToken.BorderRadius;
        TopLevelItemBorderRadiusLG = SharedToken.BorderRadiusLG;

        TopLevelItemFontSize   = !double.IsNaN(TopLevelItemFontSize) ? TopLevelItemFontSize : fontSize;
        TopLevelItemFontSizeSM = !double.IsNaN(TopLevelItemFontSizeSM) ? TopLevelItemFontSizeSM : fontSize;
        TopLevelItemFontSizeLG = !double.IsNaN(TopLevelItemFontSizeLG) ? TopLevelItemFontSizeLG : fontSizeLG;

        TopLevelItemLineHeight = !double.IsNaN(TopLevelItemLineHeight)
            ? TopLevelItemLineHeight
            : CalculatorUtils.CalculateLineHeight(TopLevelItemFontSize) * TopLevelItemFontSize;
        TopLevelItemLineHeightSM = !double.IsNaN(TopLevelItemLineHeightSM)
            ? TopLevelItemLineHeightSM
            : CalculatorUtils.CalculateLineHeight(TopLevelItemFontSizeSM) * TopLevelItemFontSizeSM;
        TopLevelItemLineHeightLG = !double.IsNaN(TopLevelItemLineHeightLG)
            ? TopLevelItemLineHeightLG
            : CalculatorUtils.CalculateLineHeight(TopLevelItemFontSizeLG) * TopLevelItemFontSizeLG;

        TopLevelItemPaddingSM = new Thickness(SharedToken.PaddingContentHorizontalXS * 0.7,
            Math.Max((controlHeightSM - TopLevelItemLineHeightSM) / 2, 0));
        TopLevelItemPadding = new Thickness(SharedToken.PaddingContentHorizontalXS,
            Math.Max((controlHeight - TopLevelItemLineHeight) / 2, 0));
        TopLevelItemPaddingLG = new Thickness(SharedToken.PaddingContentHorizontalSM,
            Math.Max((controlHeightLG - TopLevelItemLineHeightLG) / 2, 0));

        TopLevelItemPopupMarginToAnchor = SharedToken.UniformlyMarginXXS;

        MenuPopupBorderRadius = SharedToken.BorderRadiusLG;

        MenuPopupMinWidth = 120;
        MenuPopupMaxWidth = 800;
        
        MenuPopupMaxHeight = ItemHeight * 15;

        SeparatorItemHeight = SharedToken.LineWidth * 5; // 上下两像素，留一像素给自己

        MenuTearOffHeight = ItemHeight * 1.2; // 暂时这么定义吧

        MenuPopupContentPadding = new Thickness(SharedToken.UniformlyPaddingXXS, MenuPopupBorderRadius.TopLeft / 2);
        MenuPopupBoxShadows     = SharedToken.BoxShadowsSecondary;

        ScrollButtonIconSize = SharedToken.IconSizeSM;
        ScrollButtonPadding  = SharedToken.PaddingXS;
        ScrollButtonMargin   = new Thickness(SharedToken.UniformlyMarginXXS / 2);
    }
}