protected string GetExposedRecommendationsScriptImpl(HttpContextBase context, SannsynConfiguration config, ICustomerService customerService)
{
StringBuilder sb = new StringBuilder();
ExposureTracker tracker = new ExposureTracker();
var recommendations = tracker.GetTrackedExposures(context);
if (recommendations.Any() == false)
{
return(null);
}
sb.AppendLine("var sannsynService = '" + config.Service + "';");
sb.AppendLine("var sannsynTrackedId = '" + customerService.GetCurrentUserId() + "';");
string script = @"
function trackRecommendationExposure(recommendations, recommenderName) {
var ouronscroll = function(){
ssas_track_visibility(recommendations, recommenderName, sannsynService, sannsynTrackedId);
};
var oldonscroll = window.onscroll; // don't overwrite old onScroll method, (if it exists)
if (oldonscroll != null) {
window.onscroll = function() {
oldonscroll.apply(window);
ouronscroll.apply(window)
};
} else {
window.onscroll = function() {
ouronscroll.apply(window);
};
}
// finally, do an initial check for visibility, since onscroll could be never happening:
ouronscroll.apply(window);
}
function trackRecClick(recommendation)
{
ssas_click(sannsynService, sannsynTrackedId, recommendation);
}
";
sb.Append(script);
foreach (var group in recommendations.GroupBy(r => r.RecommenderName))
{
List <string> productCodes = new List <string>();
foreach (var value in group)
{
productCodes.Add(value.ProductCode);
}
string recName = "rec_" + group.Key;
string exposures = string.Format("var {0} = ['{1}'];", recName, string.Join("', '", productCodes));
string call = string.Format("trackRecommendationExposure({0}, '{1}');", recName, group.Key);
sb.AppendLine(exposures);
sb.AppendLine(call);
}
return(sb.ToString());
}
public static void AddRecommendationExposure(this HttpContextBase context, ITrackedRecommendation recommendation)
{
ExposureTracker tracker = new ExposureTracker();
tracker.AddExposure(context, recommendation);
}