public static void Clear(Constants.LINKTYPE type, int?index)
{
HttpCookie cookie = HttpContext.Current.Request.Cookies["ExtronRecView_" + type];
if (cookie != null)
{
if (index == null)
{
cookie.Value = "";
cookie.Expires = DateTime.Now.AddDays(-1d);
}
else
{
var items = JsonConvert.DeserializeObject <List <object> >(cookie.Value);
items.RemoveAt((items.Count - 1) - (index ?? default(int)));
if (items.Count == 0)
{
cookie.Value = "";
cookie.Expires = DateTime.Now.AddDays(-1d);
}
else
{
cookie.Value = JsonConvert.SerializeObject(items);
cookie.Expires = DateTime.Now.AddYears(10);
}
}
HttpContext.Current.Response.Cookies.Add(cookie);
}
}
public static void Set(dynamic obj, Constants.LINKTYPE type)
{
HttpCookie cookie = HttpContext.Current.Request.Cookies["ExtronRecView_" + type];
if (cookie == null)
{
cookie = new HttpCookie("ExtronRecView_" + type);
}
else
{
if (Functions.IsValidJson(cookie.Value) == false)
{
//invalid cookie, clear existing and start new.
Clear(type, null);
cookie = new HttpCookie("ExtronRecView_" + type);
}
}
switch (type)
{
case Constants.LINKTYPE.PRODUCT:
List <RecentlyViewedProduct> items =
JsonConvert.DeserializeObject <List <RecentlyViewedProduct> >(cookie.Value ?? "[]");
items.Add(new RecentlyViewedProduct {
FileHandle = obj.FileHandle, SubTitle = obj.SubTitle, Name = obj.Name, ViewDate = obj.ViewDate
});
var duplicated = from i in items
group i by i.FileHandle into g
where g.Count() > 1
select g.Key;
items.Remove(items.Find(i => duplicated.Contains(i.FileHandle)));
if (items.Count > 12)
{
items.RemoveRange(0, items.Count - 12);
}
cookie.Value = JsonConvert.SerializeObject(items);
break;
case Constants.LINKTYPE.ARTICLE:
//TODO: Set and filter Article links when ready;
break;
default:
break;
}
cookie.Expires = DateTime.Now.AddYears(10);
HttpContext.Current.Response.Cookies.Add(cookie);
}
public static IEnumerable <RecentlyViewedItem> Get(Constants.LINKTYPE type)
{
HttpCookie cookie = HttpContext.Current.Request.Cookies["ExtronRecView_" + type];
if (cookie != null)
{
//making sure in JSON Array format
if (cookie.Value.StartsWith("[") == false && cookie.Value.EndsWith("]") == false)
{
cookie.Value = "[" + cookie.Value + "]";
}
switch (type)
{
case Constants.LINKTYPE.PRODUCT:
if (Functions.IsValidJson(cookie.Value))
{
List <RecentlyViewedProduct> items =
JsonConvert.DeserializeObject <List <RecentlyViewedProduct> >(cookie.Value);
if (items != null)
{
items.Reverse();
}
return(items);
}
else
{
Clear(Constants.LINKTYPE.PRODUCT, null);
}
break;
case Constants.LINKTYPE.ARTICLE:
//TODO: return Article links when ready;
break;
default:
return(null);
}
}
return(null);
}
