function yst_clean(str) {
	if (str == '' || str == undefined)
		return '';

	try {
		str = jQuery('<div/>').html(str).text();
		str = str.replace(/<\/?[^>]+>/gi, '');
		str = str.replace(/\[(.+?)\](.+?\[\/\\1\])?/g, '');
	} catch (e) {
	}

	return str;
}

function ptest(str, p) {
	str = yst_clean(str);
	str = str.toLowerCase();
	var r = str.match(p);
	if ( r != null )
		return '<span class="good">Yes (' + r.length + ')</span>';
	else
		return '<span class="wrong">No</span>';
}

function removeLowerCaseDiacritics(str) {
	var defaultDiacriticsRemovalMap = [
		{'base': 'a', 'letters': /[\u0061\u24D0\uFF41\u1E9A\u00E0\u00E1\u00E2\u1EA7\u1EA5\u1EAB\u1EA9\u00E3\u0101\u0103\u1EB1\u1EAF\u1EB5\u1EB3\u0227\u01E1\u00E4\u01DF\u1EA3\u00E5\u01FB\u01CE\u0201\u0203\u1EA1\u1EAD\u1EB7\u1E01\u0105\u2C65\u0250]/g},
		{'base': 'aa', 'letters': /[\uA733]/g},
		{'base': 'ae', 'letters': /[\u00E6\u01FD\u01E3]/g},
		{'base': 'ao', 'letters': /[\uA735]/g},
		{'base': 'au', 'letters': /[\uA737]/g},
		{'base': 'av', 'letters': /[\uA739\uA73B]/g},
		{'base': 'ay', 'letters': /[\uA73D]/g},
		{'base': 'b', 'letters': /[\u0062\u24D1\uFF42\u1E03\u1E05\u1E07\u0180\u0183\u0253]/g},
		{'base': 'c', 'letters': /[\u0063\u24D2\uFF43\u0107\u0109\u010B\u010D\u00E7\u1E09\u0188\u023C\uA73F\u2184]/g},
		{'base': 'd', 'letters': /[\u0064\u24D3\uFF44\u1E0B\u010F\u1E0D\u1E11\u1E13\u1E0F\u0111\u018C\u0256\u0257\uA77A]/g},
		{'base': 'dz', 'letters': /[\u01F3\u01C6]/g},
		{'base': 'e', 'letters': /[\u0065\u24D4\uFF45\u00E8\u00E9\u00EA\u1EC1\u1EBF\u1EC5\u1EC3\u1EBD\u0113\u1E15\u1E17\u0115\u0117\u00EB\u1EBB\u011B\u0205\u0207\u1EB9\u1EC7\u0229\u1E1D\u0119\u1E19\u1E1B\u0247\u025B\u01DD]/g},
		{'base': 'f', 'letters': /[\u0066\u24D5\uFF46\u1E1F\u0192\uA77C]/g},
		{'base': 'g', 'letters': /[\u0067\u24D6\uFF47\u01F5\u011D\u1E21\u011F\u0121\u01E7\u0123\u01E5\u0260\uA7A1\u1D79\uA77F]/g},
		{'base': 'h', 'letters': /[\u0068\u24D7\uFF48\u0125\u1E23\u1E27\u021F\u1E25\u1E29\u1E2B\u1E96\u0127\u2C68\u2C76\u0265]/g},
		{'base': 'hv', 'letters': /[\u0195]/g},
		{'base': 'i', 'letters': /[\u0069\u24D8\uFF49\u00EC\u00ED\u00EE\u0129\u012B\u012D\u00EF\u1E2F\u1EC9\u01D0\u0209\u020B\u1ECB\u012F\u1E2D\u0268\u0131]/g},
		{'base': 'j', 'letters': /[\u006A\u24D9\uFF4A\u0135\u01F0\u0249]/g},
		{'base': 'k', 'letters': /[\u006B\u24DA\uFF4B\u1E31\u01E9\u1E33\u0137\u1E35\u0199\u2C6A\uA741\uA743\uA745\uA7A3]/g},
		{'base': 'l', 'letters': /[\u006C\u24DB\uFF4C\u0140\u013A\u013E\u1E37\u1E39\u013C\u1E3D\u1E3B\u017F\u0142\u019A\u026B\u2C61\uA749\uA781\uA747]/g},
		{'base': 'lj', 'letters': /[\u01C9]/g},
		{'base': 'm', 'letters': /[\u006D\u24DC\uFF4D\u1E3F\u1E41\u1E43\u0271\u026F]/g},
		{'base': 'n', 'letters': /[\u006E\u24DD\uFF4E\u01F9\u0144\u00F1\u1E45\u0148\u1E47\u0146\u1E4B\u1E49\u019E\u0272\u0149\uA791\uA7A5]/g},
		{'base': 'nj', 'letters': /[\u01CC]/g},
		{'base': 'o', 'letters': /[\u006F\u24DE\uFF4F\u00F2\u00F3\u00F4\u1ED3\u1ED1\u1ED7\u1ED5\u00F5\u1E4D\u022D\u1E4F\u014D\u1E51\u1E53\u014F\u022F\u0231\u00F6\u022B\u1ECF\u0151\u01D2\u020D\u020F\u01A1\u1EDD\u1EDB\u1EE1\u1EDF\u1EE3\u1ECD\u1ED9\u01EB\u01ED\u00F8\u01FF\u0254\uA74B\uA74D\u0275]/g},
		{'base': 'oi', 'letters': /[\u01A3]/g},
		{'base': 'ou', 'letters': /[\u0223]/g},
		{'base': 'oo', 'letters': /[\uA74F]/g},
		{'base': 'p', 'letters': /[\u0070\u24DF\uFF50\u1E55\u1E57\u01A5\u1D7D\uA751\uA753\uA755]/g},
		{'base': 'q', 'letters': /[\u0071\u24E0\uFF51\u024B\uA757\uA759]/g},
		{'base': 'r', 'letters': /[\u0072\u24E1\uFF52\u0155\u1E59\u0159\u0211\u0213\u1E5B\u1E5D\u0157\u1E5F\u024D\u027D\uA75B\uA7A7\uA783]/g},
		{'base': 's', 'letters': /[\u0073\u24E2\uFF53\u00DF\u015B\u1E65\u015D\u1E61\u0161\u1E67\u1E63\u1E69\u0219\u015F\u023F\uA7A9\uA785\u1E9B]/g},
		{'base': 't', 'letters': /[\u0074\u24E3\uFF54\u1E6B\u1E97\u0165\u1E6D\u021B\u0163\u1E71\u1E6F\u0167\u01AD\u0288\u2C66\uA787]/g},
		{'base': 'tz', 'letters': /[\uA729]/g},
		{'base': 'u', 'letters': /[\u0075\u24E4\uFF55\u00F9\u00FA\u00FB\u0169\u1E79\u016B\u1E7B\u016D\u00FC\u01DC\u01D8\u01D6\u01DA\u1EE7\u016F\u0171\u01D4\u0215\u0217\u01B0\u1EEB\u1EE9\u1EEF\u1EED\u1EF1\u1EE5\u1E73\u0173\u1E77\u1E75\u0289]/g},
		{'base': 'v', 'letters': /[\u0076\u24E5\uFF56\u1E7D\u1E7F\u028B\uA75F\u028C]/g},
		{'base': 'vy', 'letters': /[\uA761]/g},
		{'base': 'w', 'letters': /[\u0077\u24E6\uFF57\u1E81\u1E83\u0175\u1E87\u1E85\u1E98\u1E89\u2C73]/g},
		{'base': 'x', 'letters': /[\u0078\u24E7\uFF58\u1E8B\u1E8D]/g},
		{'base': 'y', 'letters': /[\u0079\u24E8\uFF59\u1EF3\u00FD\u0177\u1EF9\u0233\u1E8F\u00FF\u1EF7\u1E99\u1EF5\u01B4\u024F\u1EFF]/g},
		{'base': 'z', 'letters': /[\u007A\u24E9\uFF5A\u017A\u1E91\u017C\u017E\u1E93\u1E95\u01B6\u0225\u0240\u2C6C\uA763]/g}
	];
	var changes;
	if (!changes) {
		changes = defaultDiacriticsRemovalMap;
	}
	for (var i = 0; i < changes.length; i++) {
		str = str.replace(changes[i].letters, changes[i].base);
	}
	return str;
}

function testFocusKw() {
	// Retrieve focus keyword and trim
	var focuskw = jQuery.trim(jQuery('#'+wpseoMetaboxL10n.field_prefix+'focuskw').val());
	focuskw = escapeFocusKw(focuskw).toLowerCase();

	var postname = jQuery('#editable-post-name-full').text();
	var url = wpseoMetaboxL10n.wpseo_permalink_template.replace('%postname%', postname).replace('http://', '');

	var p = new RegExp("(^|[ \s\n\r\t\.,'\(\"\+;!?:\-])" + focuskw + "($|[ \s\n\r\t.,'\)\"\+!?:;\-])", 'gim');
	//remove diacritics of a lower cased focuskw for url matching in foreign lang
	var focuskwNoDiacritics = removeLowerCaseDiacritics(focuskw);
	var p2 = new RegExp(focuskwNoDiacritics.replace(/\s+/g, "[-_\\\//]"), 'gim');

	var metadesc = jQuery('#'+wpseoMetaboxL10n.field_prefix+'metadesc').val();
	var snippet = jQuery('#wpseosnippet');
	var focuskwresults = jQuery('#focuskwresults');
	if (metadesc == '')
		metadesc = snippet.find('.desc').text();

	if (focuskw != '') {
		var html = '<p>' + wpseoMetaboxL10n.keyword_header + '<br />';
		html += wpseoMetaboxL10n.article_header_text + ptest(jQuery('#title').val(), p) + '<br/>';
		html += wpseoMetaboxL10n.page_title_text + ptest(snippet.find('.title').text(), p) + '<br/>';
		html += wpseoMetaboxL10n.page_url_text + ptest(url, p2) + '<br/>';
		html += wpseoMetaboxL10n.content_text + ptest(jQuery('#content').val(), p) + '<br/>';
		html += wpseoMetaboxL10n.meta_description_text + ptest(metadesc, p);
		html += '</p>';
		focuskwresults.html(html);
	} else {
		focuskwresults.html('');
	}
}

function updateTitle(force) {
	var title = '';
	var titleElm = jQuery('#'+wpseoMetaboxL10n.field_prefix+'title');
	var titleLengthError = jQuery('#'+wpseoMetaboxL10n.field_prefix+'title-length-warning');
	var divHtml = jQuery('<div />');
	var snippetTitle = jQuery('#wpseosnippet').find('.title');

	if (titleElm.val()) {
		title = titleElm.val();
	} else {
		title = wpseoMetaboxL10n.wpseo_title_template.replace('%%title%%', jQuery('#title').val());
		title = divHtml.html(title).text();
	}
	if (title == '') {
		snippetTitle.html('');
		titleLengthError.hide();
		return;
	}

	title = yst_clean(title);
	title = jQuery.trim(title);
	var original_title = title;
	title = divHtml.text(title).html();

	if (force) {
		titleElm.val(title);
	} else {
		// placeholder needs to be html decoded when being set by jQuery
		original_title = divHtml.html(original_title).text();
		titleElm.attr('placeholder', original_title);
	}

	var e = document.getElementById('wpseosnippet_title');
	if ( e != null ) {
		if (e.scrollWidth > e.clientWidth) {
			titleLengthError.show();
		} else {
			titleLengthError.hide();
		}
	}

	title = boldKeywords(title, false);

	snippetTitle.html(title);
	testFocusKw();
}

function updateDesc() {
	var autogen = false;
	var desc = jQuery.trim(yst_clean(jQuery('#'+wpseoMetaboxL10n.field_prefix+'metadesc').val()));
	var color = '#000';
	var divHtml = jQuery('<div />');

	if (desc == '') {
		if (wpseoMetaboxL10n.wpseo_metadesc_template != '') {
			var excerpt = yst_clean(jQuery("#excerpt").val());
			desc = wpseoMetaboxL10n.wpseo_metadesc_template.replace('%%excerpt_only%%', excerpt);
			desc = desc.replace('%%excerpt%%', excerpt);
			desc = divHtml.html(desc).text();
		}

		desc = jQuery.trim(desc);

		if (desc == '') {
			desc = jQuery("#content").val();
			desc = yst_clean(desc);

			var focuskw = escapeFocusKw(jQuery.trim(jQuery('#'+wpseoMetaboxL10n.field_prefix+'focuskw').val()));
			if (focuskw != '') {
				var descsearch = new RegExp(focuskw, 'gim');
				if (desc.search(descsearch) != -1 && desc.length > wpseoMetaboxL10n.wpseo_meta_desc_length) {
					desc = desc.substr(desc.search(descsearch), wpseoMetaboxL10n.wpseo_meta_desc_length);
				} else {
					desc = desc.substr(0, wpseoMetaboxL10n.wpseo_meta_desc_length);
				}
			} else {
				desc = desc.substr(0, wpseoMetaboxL10n.wpseo_meta_desc_length);
			}
			autogen = true;
		}
	}

	desc = divHtml.text(desc).html();
	desc = yst_clean(desc);

	var len = -1;
	if (!autogen)
		len = wpseoMetaboxL10n.wpseo_meta_desc_length - desc.length;
	else
		len = wpseoMetaboxL10n.wpseo_meta_desc_length;

	if (len < 0)
		len = '<span class="wrong">' + len + '</span>';
	else
		len = '<span class="good">' + len + '</span>';

	if (autogen || desc.length > wpseoMetaboxL10n.wpseo_meta_desc_length) {
		var space;
		if (desc.length > wpseoMetaboxL10n.wpseo_meta_desc_length)
			space = desc.lastIndexOf(" ", ( wpseoMetaboxL10n.wpseo_meta_desc_length - 3 ));
		else
			space = wpseoMetaboxL10n.wpseo_meta_desc_length;
		desc = desc.substring(0, space).concat(' ...');
	}

	desc = boldKeywords(desc, false);

	jQuery('#'+wpseoMetaboxL10n.field_prefix+'metadesc-length').html(len);
	jQuery('#wpseosnippet').find('.desc span.content').html(desc);
	testFocusKw();
}

function updateURL() {
	var name = jQuery('#editable-post-name-full').text();
	var url = wpseoMetaboxL10n.wpseo_permalink_template.replace('%postname%', name).replace('http://', '');
	url = boldKeywords(url, true);
	jQuery('#wpseosnippet').find('.url').html(url);
	testFocusKw();
}

function boldKeywords(str, url) {
	var focuskw = escapeFocusKw(jQuery.trim(jQuery('#'+wpseoMetaboxL10n.field_prefix+'focuskw').val()));
	var keywords;

	if (focuskw == '')
		return str;

	if (focuskw.search(' ') != -1) {
		keywords = focuskw.split(' ');
	} else {
		keywords = new Array(focuskw);
	}
	for (var i = 0; i < keywords.length; i++) {
		var kw = yst_clean(keywords[i]);
		var kwregex = '';
		if (url) {
			kw = kw.replace(' ', '-').toLowerCase();
			kwregex = new RegExp("([-/])(" + kw + ")([-/])?");
		} else {
			kwregex = new RegExp("(^|[ \s\n\r\t\.,'\(\"\+;!?:\-]+)(" + kw + ")($|[ \s\n\r\t\.,'\)\"\+;!?:\-]+)", 'gim');
		}
		str = str.replace(kwregex, "$1<strong>$2</strong>$3");
	}
	return str;
}

function updateSnippet() {
	updateURL();
	updateTitle();
	updateDesc();
}

function escapeFocusKw( str ) {
	return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
}

jQuery(document).ready(function () {
	if ( jQuery( '.wpseo-metabox-tabs-div' ).length > 0 ) {
		var active_tab = window.location.hash;
		if (active_tab == '' || active_tab.search('wpseo') == -1)
			active_tab = 'general';
		else
			active_tab = active_tab.replace('#wpseo_', '');

		jQuery('.' + active_tab).addClass('active');

		var descElm = jQuery('#'+wpseoMetaboxL10n.field_prefix+'metadesc');
		var desc = jQuery.trim(yst_clean(descElm.val()));
		desc = jQuery('<div />').html(desc).text();
		descElm.val(desc);

		jQuery('a.wpseo_tablink').click(function () {
			jQuery('.wpseo-metabox-tabs li').removeClass('active');
			jQuery('.wpseotab').removeClass('active');

			var id = jQuery(this).attr('href').replace('#wpseo_', '');
			jQuery('.' + id).addClass('active');
			jQuery(this).parent().addClass('active');

			if (jQuery(this).hasClass('scroll')) {
				var scrollto = jQuery(this).attr('href').replace('wpseo_', '');
				jQuery("html, body").animate({
					scrollTop: jQuery(scrollto).offset().top
				}, 500);
			}
		});
	}

	jQuery('.wpseo-heading').hide();
	jQuery('.wpseo-metabox-tabs').show();
	// End Tabs code

	jQuery('#related_keywords_heading').hide();

	var cache = {}, lastXhr;

	jQuery('#'+wpseoMetaboxL10n.field_prefix+'focuskw').autocomplete({
		minLength   : 3,
		formatResult: function (row) {
			return jQuery('<div/>').html(row).html();
		},
		source      : function (request, response) {
			var term = request.term;
			if (term in cache) {
				response(cache[ term ]);
				return;
			}
			request._ajax_nonce = wpseoMetaboxL10n.wpseo_keyword_suggest_nonce;
			request.action = 'wpseo_get_suggest';

			lastXhr = jQuery.getJSON(ajaxurl, request, function (data, status, xhr) {
				cache[ term ] = data;
				if (xhr === lastXhr) {
					response(data);
				}
				return;
			});
		}
	});

	jQuery('#'+wpseoMetaboxL10n.field_prefix+'title').keyup(function () {
		updateTitle();
	});
	jQuery('#'+wpseoMetaboxL10n.field_prefix+'metadesc').keyup(function () {
		updateDesc();
	});
	jQuery('#excerpt').keyup(function () {
		updateDesc();
	});

	jQuery(document).on('change', '#'+wpseoMetaboxL10n.field_prefix+'title', function () {
		updateTitle();
	});
	jQuery(document).on('change', '#'+wpseoMetaboxL10n.field_prefix+'metadesc', function () {
		updateDesc();
	});
	jQuery(document).on('change', '#excerpt', function () {
		updateDesc();
	});
	jQuery(document).on('change', '#content', function () {
		updateDesc();
	});
	jQuery(document).on('change', '#tinymce', function () {
		updateDesc();
	});
	jQuery(document).on('change', '#titlewrap #title', function () {
		updateTitle();
	});
	jQuery('#wpseo_regen_title').click(function () {
		updateTitle(1);
		return false;
	});

	var focuskwhelptriggered = false;
	jQuery(document).on('change', '#'+wpseoMetaboxL10n.field_prefix+'focuskw', function () {
		var focuskwhelpElm = jQuery('#focuskwhelp');
		if (jQuery('#'+wpseoMetaboxL10n.field_prefix+'focuskw').val().search(',') != -1) {
			focuskwhelpElm.click();
			focuskwhelptriggered = true;
		} else if (focuskwhelptriggered) {
			focuskwhelpElm.qtip("hide");
			focuskwhelptriggered = false;
		}

		updateSnippet();
	});


	jQuery(".yoast_help").qtip({
		position: {
			corner: {
				target : 'topMiddle',
				tooltip: 'bottomLeft'
			}
		},
		show    : {
			when: {
				event: 'click'
			}
		},
		hide    : {
			when: {
				event: 'click'
			}
		},
		style   : {
			tip : 'bottomLeft',
			name: 'blue'
		}
	});

	updateSnippet();

});

// Taken and adapted from http://www.webmaster-source.com/2013/02/06/using-the-wordpress-3-5-media-uploader-in-your-plugin-or-theme/
jQuery(document).ready(function ($) {
	var wpseo_custom_uploader;
	$('.wpseo_image_upload_button').click(function (e) {
		var wpseo_target_id = $(this).attr('id').replace(/_button$/,'');
		e.preventDefault();
		if (wpseo_custom_uploader) {
			wpseo_custom_uploader.open();
			return;
		}
		wpseo_custom_uploader = wp.media.frames.file_frame = wp.media({
			title   : wpseoMetaboxL10n.choose_image,
			button  : { text: wpseoMetaboxL10n.choose_image },
			multiple: false
		});
		wpseo_custom_uploader.on('select', function () {
			var attachment = wpseo_custom_uploader.state().get('selection').first().toJSON();
			$('#'+wpseo_target_id).val(attachment.url);
		});
		wpseo_custom_uploader.open();
	});
});
