<?php
/**
 * Get the allowed SVG for safe output.
 *
 * @return array
 */
function sc_allowed_svg_html(): array {
	$kses_defaults = wp_kses_allowed_html( 'post' );

	/**
	 * Filters the allowed SVG attributes.
	 *
	 * @param array $svg_args An array of allowed SVG attributes.
	 */
	$svg_args = apply_filters(
		'sc_allowed_svg_html',
		array(
			'svg'      => array(
				'class'             => true,
				'aria-hidden'       => true,
				'aria-labelledby'   => true,
				'role'              => true,
				'xmlns'             => true,
				'width'             => true,
				'height'            => true,
				'viewbox'           => true,
				'fill'              => true,
				'stroke'            => true,
				'stroke-width'      => true,
				'fill-rule'         => true,
				'stroke-linecap'    => true,
				'stroke-linejoin'   => true,
				'stroke-miterlimit' => true,
			),
			'g'        => array(
				'fill'      => true,
				'transform' => true,
			),
			'title'    => array( 'title' => true ),
			'path'     => array(
				'd'         => true,
				'fill'      => true,
				'transform' => true,
			),
			'circle'   => array(
				'cx'   => true,
				'cy'   => true,
				'r'    => true,
				'fill' => true,
			),
			'ellipse'  => array(
				'cx'   => true,
				'cy'   => true,
				'rx'   => true,
				'ry'   => true,
				'fill' => true,
			),
			'line'     => array(
				'x1'           => true,
				'y1'           => true,
				'x2'           => true,
				'y2'           => true,
				'stroke'       => true,
				'stroke-width' => true,
			),
			'polygon'  => array(
				'points' => true,
				'fill'   => true,
			),
			'polyline' => array(
				'points' => true,
				'fill'   => true,
			),
			'rect'     => array(
				'x'      => true,
				'y'      => true,
				'width'  => true,
				'height' => true,
				'fill'   => true,
			),
			'text'     => array(
				'x'         => true,
				'y'         => true,
				'dx'        => true,
				'dy'        => true,
				'font-size' => true,
				'fill'      => true,
			),
		)
	);

	return array_merge( $kses_defaults, $svg_args );
}

/**
 * Add sizes and srcset to allowed image HTML.
 *
 * @return array
 */
function sc_allowed_image_html(): array {
	$kses = wp_kses_allowed_html( 'post' );

	$kses['img']['srcset'] = true;
	$kses['img']['sizes']  = true;

	return $kses;
}