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<?php

/**
 * Submenu filter function. Tested with Wordpress 4.1.1
 * Sort and order submenu positions to match our custom order.
 *
 * @author Daniel Iser<danieliser@wizardinternetsolutions.com>
 */
function pum_reorder_admin_submenu() {
	global $submenu;

	// Sort the menu according to your preferences
	usort( $submenu['edit.php?post_type=popup'], 'pum_reorder_submenu_array' );
}

add_action( 'admin_head', 'pum_reorder_admin_submenu' );


/**
 * Reorders the submenu by title.
 *
 * Forces $first_pages to load in order at the beginning of the menu
 * and $last_pages to load in order at the end. All remaining menu items will
 * go out in generic order.
 *
 * @author Daniel Iser<danieliser@wizardinternetsolutions.com>
 *
 * @param $a
 * @param $b
 *
 * @return int
 */
function pum_reorder_submenu_array( $a, $b ) {
	$first_pages = apply_filters( 'pum_admin_submenu_first_pages', array(
		__( 'All Popups', 'popup-maker' ),
		__( 'Add New', 'popup-maker' ),
		__( 'All Themes', 'popup-maker' ),
		__( 'Categories', 'popup-maker' ),
		__( 'Tags', 'popup-maker' ),
	) );
	$last_pages  = apply_filters( 'pum_admin_submenu_last_pages', array(
		__( 'Extend', 'popup-maker' ),
		__( 'Settings', 'popup-maker' ),
		__( 'Tools', 'popup-maker' ),
		__( 'Support Forum', 'freemius' ),
		__( 'Contact Us', 'freemius' ),
	) );

	$a_val = strip_tags( $a[0], false );
	$b_val = strip_tags( $b[0], false );

	// Sort First Page Keys.
	if ( in_array( $a_val, $first_pages ) && ! in_array( $b_val, $first_pages ) ) {
		return - 1;
	} elseif ( ! in_array( $a_val, $first_pages ) && in_array( $b_val, $first_pages ) ) {
		return 1;
	} elseif ( in_array( $a_val, $first_pages ) && in_array( $b_val, $first_pages ) ) {
		$a_key = array_search( $a_val, $first_pages );
		$b_key = array_search( $b_val, $first_pages );

		return ( $a_key < $b_key ) ? - 1 : 1;
	}

	// Sort Last Page Keys.
	if ( in_array( $a_val, $last_pages ) && ! in_array( $b_val, $last_pages ) ) {
		return 1;
	} elseif ( ! in_array( $a_val, $last_pages ) && in_array( $b_val, $last_pages ) ) {
		return - 1;
	} elseif ( in_array( $a_val, $last_pages ) && in_array( $b_val, $last_pages ) ) {
		$a_key = array_search( $a_val, $last_pages );
		$b_key = array_search( $b_val, $last_pages );

		return ( $a_key < $b_key ) ? - 1 : 1;
	}

	// Sort remaining keys
	return $a > $b ? 1 : - 1;
}