<?php
/**
 * Global functions.
 *
 * @package Wordpress
 */

/**
 * Get image source.
 *
 * @param int $img_id Image id.
 * @return string
 */
function get_img_src( $img_id ) {
	$image_attributes = wp_get_attachment_image_src( $img_id, 'full' );
	return $image_attributes[0];
}

/**
 * Get category id based on category name.
 *
 * @param string $cat_name Category slug.
 * @return boolean
 */
function get_category_id( $cat_name ) {
	$term = get_term_by( 'name', $cat_name, 'category' );
	if ( false !== $term ) {
		return $term->term_id;
	} else {
		return false;
	}
}

/**
 * Clean domain.
 * @param string $input Domain.
 * @return string
 */
function clean_domain( $input ) {

	$input = trim( $input, '/' );

	if ( ! preg_match( '#^http(s)?://#', $input ) ) {
		$input = 'http://' . $input;
	}

	$url_parts = parse_url( $input );

	// Remove www.
	$domain = preg_replace( '/^www\./', '', $url_parts['host'] );

	return $domain;
}


// Remove inline width and height attributes from images.
add_filter( 'post_thumbnail_html', 'remove_width_attribute', 10 );
add_filter( 'image_send_to_editor', 'remove_width_attribute', 10 );
/**
 * Remove width atribute.
 *
 * @param string $html Html.
 * @return string
 */
function remove_width_attribute( $html ) {
	$html = preg_replace( '/(width|height)="\d*"\s/', '', $html );
	return $html;
}

/**
 * Work around pagination name ampersand bug.
 *
 * @param string $link Link.
 * @return string
 */
function workaroundpaginationampersandbug( $link ) {
	return str_replace( '#038;', '&', $link );
}
add_filter( 'paginate_links', 'workaroundpaginationampersandbug' );