// Trial downlaod
$(document).ready(function() {
	var link = "DefaultFile";
	var timeoutValue = 3000;
	var trialDeplayParam = "trial-delay";
	var trialDeplayFlag = false;
	var thankyouPageFlag = false;
	
	function WhileDownloadRedirect() {
		window.location.href = link;
	}
	
	// Function of getting specific query string
	function getQueryStringParameterByName_trial(name) {
		name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
		var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
			results = regex.exec(location.search);
		return results == null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
	}
	
	// Function of setting session cookie
	function setSessionCookie_trial(name, value) {
		document.cookie = name + "=" + value + "; path=/";
	}
	
	// Retrieve a browser cookie by name
	function getCookie_trial(c_name) {
		var result = "";
		if (document.cookie.length > 0) {
			c_start = document.cookie.indexOf(c_name + "=");
			if (c_start != -1) {
				c_start = c_start + c_name.length + 1;
				c_end = document.cookie.indexOf(";", c_start);
				if (c_end == -1) {
					c_end = document.cookie.length;
				}
				result = unescape(document.cookie.substring(c_start, c_end));
			}
		}
		return result;
	}
	
	// Allow customize timeoutValue from query string "delay-value"
	if(getQueryStringParameterByName_trial(trialDeplayParam) != ""){
		// When a querystring parameter "trial-delay=none" is present on the page where the user clicked the "download trial" button, the transition to the thank-you page is done immediately. 
		timeoutValue = getQueryStringParameterByName_trial("trial-delay");
		trialDeplayFlag = true;
		
		// If delay-value="none", set timeoutValue to be default value for different browsers.
		if(timeoutValue == "none"){
			timeoutValue = 0;
		}
	}
		
	// Function of using hidden iframe for download trial
	function downloadFileByIframe(fileLink){
		var iframe = document.createElement('iframe');
		iframe.style.display = 'none';
		document.body.appendChild(iframe);
		iframe.src = fileLink;
	}

	// Flag for checking if currently in thank you page or not
	if(window.location.href.indexOf("trial-thank-you.html") != -1){
		thankyouPageFlag = true;
	}
	
	//Logic required in thank you page: When there is downloadTrial=yes in query string, download trial from cookie: trial_link
	if(window.location.href.indexOf("trial-thank-you.html") != -1 && getQueryStringParameterByName_trial("downloadTrial") == "yes"){
		// Download trial if session cookie is not empty
		if(getCookie_trial("trial_link") != ""){
			downloadFileByIframe(getCookie_trial("trial_link"));
		}
	}
	
	// language list, en/de/fr/la/it/nl/br/pl/cz/ru/jp/cn/tw 
	var CDGS_languageList = ["en", "de", "fr", "la", "it", "nl", "br", "pl", "cz", "ru", "jp", "cn", "tw"];
	
	//CDGS, loop to add button click function
	$.each(CDGS_languageList, function(index, lang){
		var trialBtnClass = ".cdgs-trial-" + lang;	//ex: ".cdgs-trial-en"
		$(trialBtnClass).click(function(e) {
			e.preventDefault();
			link = "/"+lang+"/product/coreldraw/trial-thank-you.html?ver=25.0";	//ex: "/en/product/coreldraw/trial-thank-you.html?ver=24.0";
			if(trialDeplayFlag){	// trial-delay flow, set session cookie, redirect user to thank you page, then download file
				link = "/"+lang+"/product/coreldraw/trial-thank-you.html?ver=25.0&downloadTrial=yes";	//ex: "/en/product/coreldraw/trial-thank-you.html?ver=24.0&downloadTrial=yes";
				setSessionCookie_trial("trial_link", $(this).attr("href"));
			}else{	// Current flow, download trial first then redirect user to thank you page
				downloadFileByIframe($(this).attr("href"));
			}
			// Only redirect user to thank you page when it is not in thank you page now
			if(!thankyouPageFlag){
				setTimeout(WhileDownloadRedirect, timeoutValue);
			}
		});
	});
	
	// language list, en/de/fr/la/it/nl/br/pl/cz/ru/jp/cn/tw 
	var CDSTD_languageList = ["en", "de", "fr", "la", "it", "nl", "br", "pl", "cz", "ru", "jp", "cn", "tw"];
	
	//CDSTD, loop to add button click function
	$.each(CDSTD_languageList, function(index, lang){
		var trialBtnClass = ".cdstd-trial-" + lang;	//ex: ".cdstd-trial-en"
		$(trialBtnClass).click(function(e) {
			e.preventDefault();
			link = "/"+lang+"/product/coreldraw/standard/trial-thank-you.html";	//ex: link = "/en/product/coreldraw/standard/trial-thank-you.html";
			if(trialDeplayFlag){	// trial-delay flow, set session cookie, redirect user to thank you page, then download file
				link = "/"+lang+"/product/coreldraw/standard/trial-thank-you.html?downloadTrial=yes";	//ex: "/en/product/coreldraw/standard/trial-thank-you.html?downloadTrial=yes";
				setSessionCookie_trial("trial_link", $(this).attr("href"));
			}else{	// Current flow, download trial first then redirect user to thank you page
				downloadFileByIframe($(this).attr("href"));
			}
			// Only redirect user to thank you page when it is not in thank you page now
			if(!thankyouPageFlag){
				setTimeout(WhileDownloadRedirect, timeoutValue);
			}
		});
	});
	
	// CDTS language list
	var CDTS_languageList = ["en", "us", "au", "ca", "gb", "rw", "in", "de", "fr", "it", "nl", "pl", "ru", "br", "la", "cz", "cn", "jp", "tw"];
	
	//CDTS, loop to add button click function
	$.each(CDTS_languageList, function(index, lang){
		var trialBtnClass = ".cdts-trial-" + lang;	//ex: ".cdts-trial-en"
		$(trialBtnClass).click(function(e) {
			e.preventDefault();
			link = "/"+lang+"/product/technical-suite/trial-thank-you.html?ver=21.0";	//ex: "/en/product/technical-suite/trial-thank-you.html?ver=21.0";
			if(trialDeplayFlag){	// trial-delay flow, set session cookie, redirect user to thank you page, then download file
				link = "/"+lang+"/product/technical-suite/trial-thank-you.html?ver=21.0&downloadTrial=yes";	//ex: "/en/product/technical-suite/trial-thank-you.html?ver=21.0&downloadTrial=yes";
				setSessionCookie_trial("trial_link", $(this).attr("href"));
			}else{	// Current flow, download trial first then redirect user to thank you page
				downloadFileByIframe($(this).attr("href"));
			}
			// Only redirect user to thank you page when it is not in thank you page now
			if(!thankyouPageFlag){
				setTimeout(WhileDownloadRedirect, timeoutValue);
			}
		});
	});
	
});