/* Add an image slider to #emotion-header div instead of existing picture */
/* by T. Groß, M. Bertling                                          v 2.0 */

if (typeof imagepage === 'undefined' || imagepage === null) {
	var imagepage = "/images"; //hier den Pfad eingeben für die Bilder
}
var slidercontainer = "#sliderwrapper" // Hier die Ziel ID oder #emotion-header
var showCaption = 1;
var sliderConfig = {
effect: 'fade',
animSpeed: 500,
pauseTime: 5000,
directionNav: false,
slices: 1,
controlNav: false,
controlNavThumbs: false
};


var externalLinkTarget = '_blank';
var debug = 0;

/* * * * *
* / END OF SLIDER CONFIG
* * * * */


/* * * * *
* DO NOT CHANGE BELOW HERE
* * * * */
var j = jQuery.noConflict();
(function($)
	{
		$(document).ready(function()
			{
				$('#sliderwrapper a').remove();
				$('#sliderwrapper').removeAttr('style');

				function teststring (re, str) {
					if (re.test(str)) {
						return true;
					}
					else {
						return false;
					}
				}

				function makeCaption (str) {
					var output;

					// remove linebreaks and leading spaces from caption
					if (str) {
						output = str.replace(/^(\s+)|(\r\n|\n|\r)/mgi, "");
					}

					// check if caption should be blank
					if (teststring(/%%blank%%/i, output)) {
						output = "";
					}

					return output;
				}

				function removeURLParameter(url, parameter) {
					//prefer to use l.search if you have a location/link object
					var urlparts = url.split('?');
					if (urlparts.length>=2) {

						var prefix = encodeURIComponent(parameter)+'=';
						var pars = urlparts[1].split(/[&;]/g);

						//reverse iteration as may be destructive
						for (var i = pars.length; i-- > 0;) {
							//idiom for string.startsWith
							if (pars[i].lastIndexOf(prefix, 0) !== -1) {
								pars.splice(i, 1);
							}
						}

						url = urlparts[0] + (pars.length > 0? '?' + pars.join('&'): "");
						return url;
					}
					else {
						return url;
					}
				}


				$.get(imagepage, function(data)
					{

						$.each($(data).find('.j-downloadDocument'), function()
							{

								// get image url and path
								var image = $('a.cc-m-download-link', this).attr('href');
								if (debug==1) {
									console.log("image: " + image);}
								var reg = /.+?\:\/\/.+?(\/.+?)(?:#|\?|$)/;
								//var imagepath = reg.exec( image )[1];
								var imagepath = removeURLParameter(image, 't');
								if (debug==1) {
									console.log("imagepath: " + imagepath);}
								var imgTitleString;
								var linkString;

								// get link
								var link = $('.cc-m-download-title', this).text();

								// get caption
								var caption = $('.cc-m-download-description', this).text();

								if (link === '') {
									// no link given (no <strong> tag)

									if (showCaption == 1) {

										// split caption string from html.
										//caption = makeCaption(caption.split(/<br>/i)[0]);

										imgTitleString = ' title="' + caption + '" ';
									}
									else {
										imgTitleString = '';
									}

									// create slide html
									$(slidercontainer).append('<img src="' + imagepath + '" data-thumb="'+ imagepath + '" ' + imgTitleString + ' />');

								}
								else {
									// link in <strong> tag is given

									if (showCaption == 1) {

										// split caption string from html.
										//caption = makeCaption(caption.split(/<br>/i)[1]);

										imgTitleString = ' title="' + caption + '" ';
									}
									else {
										imgTitleString = '';
									}


									// create <a href depending on given link
									if (teststring(/^(http|https):\/\//i, link)) {
										// is external link
										linkString = '<a target="' + externalLinkTarget + '" href="' + link + '">';

										if (debug==1) {
											console.log ('external link found: ' + linkString);}
									}

									else if (teststring(/^[^\/]/i, link)) {
										// put leading slash if it's not there
										linkString = '<a href="/' + link + '">';

										if (debug==1) {
											console.log ('added / to link: ' + linkString);}

									}
									else {
										// keep link as it is
										linkString = '<a href="' + link + '">';

										if (debug==1) {
											console.log ('keep link as it is: ' + linkString);}

									}


									// create slide html
									$(slidercontainer).append(linkString + '<img src="' + imagepath + '" data-thumb="' + imagepath + '" ' + imgTitleString + ' /><\/a>');
								};


								if (debug == 1) {
									console.log('CAPTION :' + caption);
									console.log('IMAGE: ' + image + ' ---> ' + imagepath);
									console.log('LINK: ' + linkString);
								}

							}
						); // End of Each

						// activate slider on element
						$(slidercontainer).nivoSlider(sliderConfig);

					}
				); // endof get
			}
		); // end of document ready
	}
)(j); // end of function