function copyToClipboard( element, button ) {
	var $temp = jQuery( '<input>' );
	jQuery( 'body' ).append( $temp );
	$temp.val( jQuery( element ).text() ).select();
	document.execCommand( 'copy' );
	$temp.remove();
	button.focus();
}

function modal_actions(){
	// Remove captions from shareable text
	var $ = jQuery;
	var $shareable = $('#republication-tracker-tool-shareable-content');
	var html = $shareable.text();

	var parser = new DOMParser();
	var doc = parser.parseFromString(html, "text/html");
	$(doc).find('.wp-caption').remove();
	var captionless = $(doc).find('body').html();
	$shareable.html(captionless);

	// Responsive modal
	var $modal = $('#republication-tracker-tool-modal');
	var $btn = $('.republication-tracker-tool-button');
	var $close = $('.republication-tracker-tool-close');

	// url hash of #show-republish: open the modal
	if ( '#show-republish' === window.location.hash ) {
		show_modal( $modal, $close );
	}

	// click the republish button: open the modal
	$btn.click(function(){
		show_modal( $modal, $close );
	});

	// click on the modal: close the modal
	$modal.click(function(){
		close_modal( $modal, $btn );
	});

	// close button click: close the modal
	$close.click(function(){
		close_modal( $modal, $btn );
	});

	// escape key press: close the modal
	$(document).keyup(function(e) {
		if (27 === e.keyCode) {
			close_modal( $modal, $btn );
		}
	});
}

function show_modal( $modal, $close ) {
	var $ = jQuery;
	var $modal_content = $('#republication-tracker-tool-modal-content');
	//$modal.html( html );
	$modal.show();
	$modal_content.show();
	$('body').addClass('modal-open-disallow-scrolling');
	$('#republication-tracker-tool-modal-content').unbind().click(function(e) {
		e.stopPropagation();
	});
	trapFocus( $modal );
	$close.focus();
}

function trapFocus( $modal ) {
	var $ = jQuery;
	var focusableEls = $modal.find('a[href]:not([disabled]), button:not([disabled]), textarea:not([disabled]), input[type="text"]:not([disabled]), input[type="radio"]:not([disabled]), input[type="checkbox"]:not([disabled]), select:not([disabled])');
	var firstFocusableEl = focusableEls[0];
	var lastFocusableEl = focusableEls[focusableEls.length - 1];
	var KEYCODE_TAB = 9;

	$modal.on( 'keydown', function( e ) {
		var isTabPressed = ( e.key === 'Tab' || e.keyCode === KEYCODE_TAB );

		if ( ! isTabPressed ) {
			return;
		}

		if ( e.shiftKey ) /* shift + tab */ {
			if ( document.activeElement === firstFocusableEl ) {
				lastFocusableEl.focus();
				e.preventDefault();
			}
		} else if ( document.activeElement === lastFocusableEl ) {
			firstFocusableEl.focus();
			e.preventDefault();
		}
	} );
}

function close_modal( $modal, $btn ) {
	var $ = jQuery;
	$('body').removeClass('modal-open-disallow-scrolling');
	$modal.hide();
	$btn.focus();
}

jQuery(document).ready(function(){
	var $ = jQuery,
		postId = $( '#republication-tracker-tool-modal' ).attr( 'data-postid' ),
		pluginsdir = $( '#republication-tracker-tool-modal' ).attr( 'data-pluginsdir' );

		$('#republication-tracker-tool-modal').append($('#republication-tracker-tool-modal-content'));
		$('body').append($('#republication-tracker-tool-modal'));

		modal_actions();

});