import { buildHTMLStyles } from '../../html/utils/build-styles.mjs';
import { buildSVGPath } from './path.mjs';

/**
 * Values rendered via style rather than as attributes. This must include
 * every value WAAPI can accelerate, as WAAPI writes its final value to
 * style, which would otherwise override later attribute writes.
 */
const cssStyleProperties = [
    "transform",
    "opacity",
    "clipPath",
    "filter",
    "offsetDistance",
    "offsetPath",
    "offsetRotate",
    "offsetAnchor",
];
/**
 * Build SVG visual attributes, like cx and style.transform
 */
function buildSVGAttrs(state, { attrX, attrY, attrScale, pathLength, pathSpacing = 1, pathOffset = 0, 
// This is object creation, which we try to avoid per-frame.
...latest }, isSVGTag, transformTemplate, styleProp) {
    buildHTMLStyles(state, latest, transformTemplate);
    /**
     * For svg tags we just want to make sure viewBox is animatable and treat all the styles
     * as normal HTML tags.
     */
    if (isSVGTag) {
        if (state.style.viewBox) {
            state.attrs.viewBox = state.style.viewBox;
        }
        return;
    }
    state.attrs = state.style;
    state.style = {};
    const { attrs, style } = state;
    for (const key of cssStyleProperties) {
        if (attrs[key] !== undefined) {
            style[key] = attrs[key];
            delete attrs[key];
        }
    }
    if (style.transform || attrs.transformOrigin) {
        style.transformOrigin = attrs.transformOrigin ?? "50% 50%";
        delete attrs.transformOrigin;
    }
    if (style.transform) {
        /**
         * SVG's element transform-origin uses its own median as a reference.
         * Therefore, transformBox becomes a fill-box
         */
        style.transformBox = styleProp?.transformBox ?? "fill-box";
        delete attrs.transformBox;
    }
    // Render attrX/attrY/attrScale as attributes
    if (attrX !== undefined)
        attrs.x = attrX;
    if (attrY !== undefined)
        attrs.y = attrY;
    if (attrScale !== undefined)
        attrs.scale = attrScale;
    // Build SVG path if one has been defined
    if (pathLength !== undefined) {
        buildSVGPath(attrs, pathLength, pathSpacing, pathOffset, false);
    }
}

export { buildSVGAttrs, cssStyleProperties };
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