function insertBanner( bannerJson ) {
	var url, targets;

	jQuery( 'div#centralNotice' ).prepend( bannerJson.bannerHtml );
	if ( bannerJson.autolink ) {
		url = 'https://donate.wikimedia.org/wiki/Special:LandingCheck';
		if ( ( bannerJson.landingPages !== null ) && bannerJson.landingPages.length ) {
			targets = String( bannerJson.landingPages ).split(',');
			url += "?" + jQuery.param( {
				landing_page: targets[Math.floor( Math.random() * targets.length )].replace( /^\s+|\s+$/, '' )
			} );
			url += "&" + jQuery.param( {
				utm_medium: 'sitenotice',
				utm_campaign: bannerJson.campaign,
				utm_source: bannerJson.bannerName,
				language: mw.config.get( 'wgUserLanguage' ),
				country: Geo.country
			} );
			jQuery( '#cn-landingpage-link' ).attr( 'href', url );
		}
	}
}
function setBannerHidingCookie( bannerType ) {
	var e = new Date();
	e.setTime( e.getTime() + (14*24*60*60*1000) ); // two weeks
	var work = 'centralnotice_' + bannerType + '=hide; expires=' + e.toGMTString() + '; path=/';
	document.cookie = work;
}
function hideBanner() {
	jQuery( '#centralNotice' ).hide(); // Hide current banner
	var bannerType = jQuery.centralNotice.data.bannerType;
	if ( bannerType === undefined ) {
		bannerType = 'default';
	}
	setBannerHidingCookie( bannerType ); // Hide future banners of the same type
}
// This function is deprecated
function toggleNotice() {
	hideBanner();
}var wgNoticeToggleState = document.cookie.indexOf( 'hidesnmessage=1' ) === -1;

( function( $, mw ) { mw.loader.using( 'mediawiki.util', function () {

	$.ajaxSetup({ cache: true });
	$.centralNotice = {
		data: {
			getVars: {},
			bannerType: 'default'
		},
		fn: {
			loadBanner: function( bannerName, campaign, bannerType ) {
				var bannerPageQuery, bannerPage, bannerScript;

				// Store the bannerType in case we need to set a banner hiding cookie later
				$.centralNotice.data.bannerType = bannerType;
				// Get the requested banner
				bannerPageQuery = $.param( {
					banner: bannerName,
					campaign: campaign,
					userlang: mw.config.get( 'wgUserLanguage' ),
					db: mw.config.get( 'wgDBname' ),
					sitename: mw.config.get( 'wgSiteName' ),
					country: Geo.country
				} );
				bannerPage = '?title=Special:BannerLoader&' + bannerPageQuery;
				bannerScript = '<script type="text/javascript" src="//meta.wikimedia.org/w/index.php' + bannerPage + '"></script>';
				if ( document.cookie.indexOf( 'centralnotice_' + bannerType + '=hide' ) === -1 ) {
					jQuery( '#siteNotice' ).prepend( '<div id="centralNotice" class="' +
						'cn-' + bannerType + '">'+bannerScript+'</div>' );
				}
			},
			loadBannerList: function( geoOverride ) {
				var geoLocation, bannerListQuery, bannerListURL;

				if ( geoOverride ) {
					geoLocation = geoOverride; // override the geo info
				} else {
					geoLocation = Geo.country; // pull the geo info
				}
				bannerListQuery = $.param( {
					language: mw.config.get( 'wgContentLanguage' ),
					project: mw.config.get( 'wgNoticeProject' ),
					country: geoLocation
				} );
				bannerListURL = mw.util.wikiScript() + '?title=' + encodeURIComponent('Spezial:BannerListLoader') + '&cache=/cn.js&' + bannerListQuery;
				// Prevent loading banners on Special pages
				if ( mw.config.get( 'wgNamespaceNumber' ) !== -1 ) {
					$.ajax( {
						url: bannerListURL,
						dataType: 'json',
						success: $.centralNotice.fn.chooseBanner
					} );
				}
			},
			chooseBanner: function( bannerList ) {
				mw.loader.using( 'mediawiki.user', function() {
					var groomedBannerList = [], campaignWeights = {};
					var numFilteredCampaigns = 0, zLevel = 0, i, idx, count, rnd;

					// Find the highest campaign Z level that fulfills filter constraints
					for ( i = 0; i < bannerList.length; i++ ) {
						if ( ( bannerList[i].campaign_z_index >= zLevel ) &&
						     ( ( !mw.user.anonymous() && bannerList[i].display_account === 1 ) ||
						       ( mw.user.anonymous() && bannerList[i].display_anon === 1 )
						     )
						   )
						{
							zLevel = bannerList[i].campaign_z_index;
						}
					}

					// Iterate through all banners; filtering for: user/anon and z level
					// Also determine weight counts per campaign
					for (i = 0; i < bannerList.length; i++ ) {
						if ( ( bannerList[i].campaign_z_index === zLevel ) &&
						     ( ( !mw.user.anonymous() && bannerList[i].display_account === 1 ) ||
						       ( mw.user.anonymous() && bannerList[i].display_anon === 1 ) ) ) {

							if ( bannerList[i].campaign in campaignWeights ) {
								campaignWeights[ bannerList[i].campaign ] += bannerList[i].weight;
							} else {
								campaignWeights[ bannerList[i].campaign ] = bannerList[i].weight;
								numFilteredCampaigns += 1;
							}

							groomedBannerList.push( bannerList[i] );
						}
					}

					// Make sure there are some banners to choose from
					if ( groomedBannerList.length === 0 ) {
						return false;
					}

					// Apply normalized weight to selected banners (campaigns have equal weight)
					count = 0.0;
					for ( i = 0; i < groomedBannerList.length; i++ ) {
						groomedBannerList[i].weight =
							( groomedBannerList[i].weight / campaignWeights[ groomedBannerList[i].campaign ] );
						groomedBannerList[i].weight *= ( 1 / numFilteredCampaigns );

						count += groomedBannerList[i].weight;
					}

					// Make sure we add to 1.0
					groomedBannerList[ groomedBannerList.length - 1 ].weight += ( 1.0 - count );

					// Obtain randomness
					rnd = Math.random();

					// Obtain banner index
					count = 0;
					idx = -1;
					for (i = 0; i < groomedBannerList.length; i++ ) {
						if ( rnd < count + groomedBannerList[i].weight ) {
							idx = i;
							break;
						} else {
							count += groomedBannerList[i].weight;
						}
					}

					// Load a random banner from our groomed list
					$.centralNotice.fn.loadBanner(
						groomedBannerList[idx].name,
						groomedBannerList[idx].campaign,
						( groomedBannerList[idx].fundraising ? 'fundraising' : 'default' )
					);
				});
			},
			getQueryStringVariables: function() {
				function decode( s ) {
					try {
						return decodeURIComponent( s.split( '+' ).join( ' ' ) );
					}catch(e){
						return '';
					}
				}
				document.location.search.replace( /\??(?:([^=]+)=([^&]*)&?)/g, function ( str, p1, p2 ) {
					$.centralNotice.data.getVars[decode( p1 )] = decode( p2 );
				} );
			}
		}
	};

	$( document ).ready( function ( $ ) {
		// Initialize the query string vars
		$.centralNotice.fn.getQueryStringVariables();
		if( $.centralNotice.data.getVars.banner ) {
			// if we're forcing one banner
			$.centralNotice.fn.loadBanner( $.centralNotice.data.getVars.banner, 'none', 'testing' );
		} else {
			// Look for banners ready to go NOW
			$.centralNotice.fn.loadBannerList( $.centralNotice.data.getVars.country );
		}
	} );

} ); } )( jQuery, mediaWiki );