public IHttpActionResult RateList(RatingShortDescriptionTO addRating)
{
if (ModelState.IsValid)
{
string identityUserName = System.Web.HttpContext.Current.User.Identity.Name;
addRating.UserName = identityUserName;
var userId = _authService.GetUserId(identityUserName);
if (userId == null || userId == "")
{
logger.Log(LogLevel.Error, "Error during rating list: " + identityUserName + " doesn't exists!");
return(BadRequest(UserENUM.USER_NOT_FOUND.ToString()));
}
var list = _listService.CheckIfListExists(addRating.ListId);
if (list == false)
{
logger.Log(LogLevel.Error, "Error during rating list - List with id: " + addRating.ListId + " doesn't exists!");
return(BadRequest(ListENUM.LIST_NOT_FOUND.ToString()));
}
var rating = _listService.GetRating(addRating.ListId, identityUserName);
if (rating != null)
{
if (rating.Rate != addRating.Rate)
{
addRating.UserName = identityUserName;
bool updateRate = _listService.UpdateRate(addRating);
if (!updateRate)
{
logger.Log(LogLevel.Error, "Unable to update rating for list id: " + addRating.ListId + " and userName: "******".\n");
return(BadRequest(RateENUM.UNABLE_UPDATE_RATE.ToString()));
}
return(StatusCode(HttpStatusCode.Created));
}
else if (rating.Rate == addRating.Rate)
{
bool deleteRate = _listService.DeleteRating(addRating);
if (!deleteRate)
{
logger.Log(LogLevel.Error, "Unable to delete rating for list id: " + addRating.ListId + " and userName: "******".\n");
return(BadRequest(RateENUM.UNABLE_DELETE_RATE.ToString()));
}
}
}
else
{
var addRatingResult = _listService.AddRating(addRating.ListId, addRating.Rate, userId);
if (!addRatingResult)
{
logger.Log(LogLevel.Error, "Unable to add rating with list id: " + addRating.ListId + " and userName: "******".\n");
return(BadRequest(RateENUM.UNABLE_ADD_RATE.ToString()));
}
logger.Log(LogLevel.Info, "Rating with list id: " + addRating.ListId + " and userName: "******" was added.\n");
return(StatusCode(HttpStatusCode.Created));
}
}
return(BadRequest(RateENUM.UNABLE_ADD_RATE.ToString()));
}
public bool UpdateRate(RatingShortDescriptionTO rating)
{
var success = false;
if (rating.Rate == -1 || rating.Rate == 1)
{
using (var scope = new TransactionScope())
{
var rate = new Rating();
var cache = ApplicationCache <Rating> .GetCache();
if (cache.Count() > 0)
{
var cacheItem = cache.Where(d => d.List.Id == rating.ListId && d.User.UserName == rating.UserName).FirstOrDefault();
if (cacheItem != null)
{
rate = cacheItem;
}
else
{
rate = _listRepository.GetRating(rating.ListId, rating.UserName);
}
}
else
{
rate = _listRepository.GetRating(rating.ListId, rating.UserName);
}
if (rate != null)
{
//remove old rating cache item
ApplicationCache <Rating> .RemoveCacheItem(rate);
rate.Rate = rating.Rate;
// add updated rating to cache
ApplicationCache <Rating> .AddCacheItem(rate);
//update cache in db
_listRepository.UpdateRate(rating.ListId, rating.UserName, rating.Rate);
scope.Complete();
}
}
using (var scope = new TransactionScope())
{
_listRepository.UpdateLikesDislikesCount(rating.ListId, false, false, true);
//update cache ListDescriptionTO
var cache = ApplicationCache <ListDescriptionTO> .GetCache();
if (cache.Count() > 0)
{
var cacheItem = cache.FirstOrDefault(d => d.Id == rating.ListId);
if (cacheItem != null)
{
//update likes
cacheItem.Likes = _listRepository.GetLikesCount(rating.ListId);
//update dislikes
cacheItem.DisLikes = _listRepository.GetDislikesCount(rating.ListId);
var listIndex = cache.FindIndex(d => d.Id == rating.ListId);
// replace object
cache[listIndex] = cacheItem;
ApplicationCache <ListDescriptionTO> .FillCache(cache);
}
}
scope.Complete();
success = true;
}
}
return(success);
}
