//! provides functions and macros for building svg attributes
use crate::html::attributes::{AttributeValue, Value};
use mt_dom::{attr, attr_ns};

pub(crate) const XLINK_NAMESPACE: &str = "http://www.w3.org/1999/xlink";

macro_rules! declare_xlink_attributes {
    ( $(
         $(#[$attr:meta])*
         $name:ident => $attribute:tt;
       )*
     ) => {
        $(
            /// creates a function where the function name is the attribute name of the svg element
            $(#[$attr])*
            #[inline]
            #[allow(non_snake_case)]
            pub fn $name<V, MSG>(v: V) -> crate::vdom::Attribute<MSG>
                where V: Into<Value>,
                {
                    attr_ns(Some(XLINK_NAMESPACE), $attribute, AttributeValue::from(v.into()))
                }
         )*

        #[cfg(feature = "with-lookup")]
        /// Svg attributes with xlink namespace
        pub const SVG_ATTRS_XLINK:&[(&'static str,&'static str)] = &[$((stringify!($name),$attribute),)*];
    }
}

/// declare svg attributes, at the same time fill up the
/// SVG_ATTR const with all the common svg attributes
macro_rules! declare_svg_attributes{
    ( $(
         $(#[$attr:meta])*
         $name:ident;
       )*
     ) => {
        declare_attributes!{ $($name;)*}

        #[cfg(feature = "with-lookup")]
        /// These are most commonly used svg attributes
        pub const SVG_ATTRS:&[&'static str] = &[$(stringify!($name),)*];
    }
}

macro_rules! declare_svg_attributes_special{
    ( $(
         $(#[$attr:meta])*
         $name:ident => $attribute:tt;
       )*
     ) => {
        declare_attributes!{ $($name => $attribute;)*}

        #[cfg(feature = "with-lookup")]
        /// These are svg attributes with names that are non proper rust identifier therefore they
        /// are handled differently. ie: (color-profile, accent-height, etc)
        pub const SVG_ATTRS_SPECIAL:&[(&'static str,&'static str)] = &[$((stringify!($name),$attribute),)*];
    }
}

// https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute
// complete list svg attributes
declare_svg_attributes! {
    accumulate;
    additive;
    allowReorder;
    alphabetic;
    amplitude;
    ascent;
    attributeName;
    attributeType;
    autoReverse;
    azimuth;
    baseFrequency;
    baseProfile;
    bbox;
    begin;
    bias;
    by;
    calcMode;
    clip;
    clipPathUnits;
    color;
    contentScriptType;
    contentStyleType;
    cursor;
    cx;
    cy;
    d;
    decelerate;
    descent;
    diffuseConstant;
    direction;
    display;
    divisor;
    dur;
    dx;
    dy;
    edgeMode;
    elevation;
    end;
    exponent;
    externalResourcesRequired;
    fill;
    filter;
    filterRes;
    filterUnits;
    format;
    from;
    fr;
    fx;
    fy;
    g1;
    g2;
    glyphRef;
    gradientTransform;
    gradientUnits;
    hanging;
    height;
    href;
    hreflang;
    ideographic;
    in2;
    intercept;
    k;
    k1;
    k2;
    k3;
    k4;
    kernelMatrix;
    kernelUnitLength;
    kerning;
    keyPoints;
    keySplines;
    keyTimes;
    lang;
    lengthAdjust;
    limitingConeAngle;
    local;
    markerHeight;
    markerUnits;
    markerWidth;
    mask;
    maskContentUnits;
    maskUnits;
    mathematical;
    max;
    media;
    method;
    min;
    mode;
    name;
    numOctaves;
    offset;
    opacity;
    operator;
    order;
    orient;
    orientation;
    origin;
    overflow;
    pathLength;
    patternContentUnits;
    patternTransform;
    patternUnits;
    ping;
    points;
    pointsAtX;
    pointsAtY;
    pointsAtZ;
    preserveAlpha;
    preserveAspectRatio;
    primitiveUnits;
    r;
    radius;
    referrerPolicy;
    refX;
    refY;
    rel;
    repeatCount;
    repeatDur;
    requiredExtensions;
    requiredFeatures;
    restart;
    result;
    rotate;
    rx;
    ry;
    scale;
    seed;
    slope;
    spacing;
    specularConstant;
    specularExponent;
    speed;
    spreadMethod;
    startOffset;
    stdDeviation;
    stemh;
    stemv;
    stitchTiles;
    string;
    stroke;
    surfaceScale;
    systemLanguage;
    tabindex;
    tableValues;
    target;
    targetX;
    targetY;
    textLength;
    to;
    transform;
    u1;
    u2;
    unicode;
    values;
    version;
    viewBox;
    viewTarget;
    visibility;
    width;
    widths;
    x;
    x1;
    x2;
    xChannelSelector;
    xmlns;
    y;
    y1;
    y2;
    yChannelSelector;
    z;
    zoomAndPan;
}

// attributes that has dash
declare_svg_attributes_special! {
    accent_height => "accent-height";
    alignment_baseline => "alignment-baseline";
    arabic_form => "arabic-form";
    baseline_shift => "baseline-shift";
    cap_height => "cap-height";
    clip_path => "clip-path";
    clip_rule => "clip-rule";
    color_interpolation => "color-interpolation";
    color_interpolation_filters => "color-interpolation-filters";
    color_profile => "color-profile";
    color_rendering => "color-rendering";
    dominant_baseline => "dominant-baseline";
    enable_background => "enable-background";
    fill_opacity => "fill-opacity";
    fill_rule => "fill-rule";
    flood_color => "flood-color";
    flood_opacity => "flood-opacity";
    font_size_adjust => "font-size-adjust";
    font_stretch => "font-stretch";
    font_style => "font-style";
    font_variant => "font-variant";
    font_weight => "font-weight";
    glyph_name => "glyph-name";
    glyph_orientation_horizontal => "glyph-orientation-horizontal";
    glyph_orientation_vertical => "glyph-orientation-vertical";
    horiz_adv_x => "horiz-adv-x";
    horiz_origin_x => "horiz-origin-x";
    image_rendering => "image-rendering";
    letter_spacing => "letter-spacing";
    lighting_color => "lighting-color";
    marker_end => "marker-end";
    marker_mid => "marker-mid";
    marker_start => "marker-start";
    overline_position => "overline-position";
    overline_thickness => "overline-thickness";
    panose_1 => "panose-1";
    paint_order => "paint-order";
    pointer_events => "pointer-events";
    rendering_intent => "rendering-intent";
    shape_rendering => "shape-rendering";
    stop_color => "stop-color";
    stop_opacity => "stop-opacity";
    strikethrough_position => "strikethrough-position";
    strikethrough_thickness => "strikethrough-thickness";
    stroke_dasharray => "stroke-dasharray";
    stroke_dashoffset => "stroke-dashoffset";
    stroke_linecap => "stroke-linecap";
    stroke_linejoin => "stroke-linejoin";
    stroke_miterlimit => "stroke-miterlimit";
    stroke_opacity => "stroke-opacity";
    stroke_width => "stroke-width";
    text_anchor => "text-anchor";
    text_decoration => "text-decoration";
    text_rendering => "text-rendering";
    underline_position => "underline-position";
    underline_thickness => "underline-thickness";
    unicode_bidi => "unicode-bidi";
    unicode_range => "unicode-range";
    units_per_em => "units-per-em";
    v_alphabetic => "v-alphabetic";
    v_hanging => "v-hanging";
    v_ideographic => "v-ideographic";
    v_mathematical => "v-mathematical";
    vector_effect => "vector-effect";
    vert_adv_y => "vert-adv-y";
    vert_origin_x => "vert-origin-x";
    vert_origin_y => "vert-origin-y";
    word_spacing => "word-spacing";
    writing_mode => "writing-mode";
    x_height => "x-height";
    xml_base => "xml:base";
    xml_lang => "xml:lang";
    xml_space => "xml:space";
    xmlns_xlink => "xmlns:xlink";
    r#in => "in";
    in_ => "in";
    //r#type => "type"; // already defined in html tags
    //type_ => "type";  // already defined in html tags
}

declare_xlink_attributes! {
    xlink_actuate => "actuate";
    xlink_arcrole => "arcrole";
    xlink_href => "href";
    xlink_role => "role";
    xlink_show => "show";
    xlink_title => "title";
    xlink_type => "type";
}