<?php
/**
 * Includes -> Components -> Link
 *
 */
if ( ! defined( 'ABSPATH' ) ) exit;


if ( ! function_exists( 'tbkkt_link_format_rel' ) ) :
	function tbkkt_link_format_rel( bool $new_tab, string $extra ): string {
		$tokens = preg_split( '/\s+/', trim( $extra ), -1, PREG_SPLIT_NO_EMPTY );
		if ( ! is_array( $tokens ) ) $tokens = array();

		if ( $new_tab ) :
			foreach ( array( 'noopener', 'noreferrer' ) as $req ) :
				if ( ! in_array( $req, $tokens, true ) ) :
					$tokens[] = $req;
				endif;
			endforeach;
		endif;

		$allowed = array( 'nofollow', 'sponsored', 'ugc', 'noopener', 'noreferrer' );
		$out     = array();
		foreach ( $tokens as $t ) :
			$t = strtolower( trim( (string) $t ) );
			if ( $t !== '' && in_array( $t, $allowed, true ) ) :
				$out[] = $t;
			endif;
		endforeach;

		return implode( ' ', array_unique( $out ) );
	}
endif;


if ( ! function_exists( 'tbkkt_link_opening_attributes_fragment' ) ) :
	function tbkkt_link_opening_attributes_fragment( string $href_raw, bool $new_tab, string $rel_extra, bool $decorative, string $label, string $link_class = 'tbkkt-icon-link' ): string {
		$href = esc_url( trim( $href_raw ) );
		if ( $href === '' ) return '';

		$out = ' href="' . $href . '" class="' . esc_attr( $link_class ) . '"';
		if ( $new_tab ) :
			$out .= ' target="_blank"';
		endif;
		$rel = tbkkt_link_format_rel( $new_tab, $rel_extra );
		if ( $rel !== '' ) :
			$out .= ' rel="' . esc_attr( $rel ) . '"';
		endif;
		if ( ! $decorative && trim( $label ) !== '' ) :
			$out .= ' aria-label="' . esc_attr( trim( $label ) ) . '"';
		endif;

		return $out;
	}
endif;