private IEnumerable <PointInTime> GetIrEntityForChart(IEnumerable <Post> postQuery, int members, DateRange range, Periodicity periodicity)
{
IList <PointInTime> result = new List <PointInTime>();
var irCalculator = new InteractionRateCalculator();
Func <DateTime, DateTime> increase = this.GetTimeIncreaseFunction(periodicity);
for (var i = range.From; i < range.To; i = increase(i))
{
var date = i;
var posts = postQuery.Where(x => (x.PostedDate >= date) && (x.PostedDate < date.AddMonths(1))).ToList();
var postcount = posts.Count();
var commentcount = posts.Sum(x => x.CommentsCount);
var likecount = posts.Sum(x => x.LikesCount);
var sharecount = posts.Sum(x => x.SharesCount);
if (postcount == 0 || members == 0)
{
members = 1;
postcount = 1;
}
double interactionRate = irCalculator.GetInteractionRate(commentcount, likecount, postcount, sharecount, members);
result.Add(new PointInTime {
Date = date, Value = interactionRate
});
}
return(result);
}
public Kpi CalculateKpis()
{
var calculator = new InteractionRateCalculator();
var kpi = new Kpi();
kpi.UsersCount = this.membersCount;
if (this.postsCount <= 0)
{
return(kpi);
}
kpi.PostsCount = this.postsCount;
kpi.AverageLikesPerPost = (double)this.postLikesCount / this.postsCount;
kpi.AverageCommentsPerPost = (double)this.postCommentsCount / this.postsCount;
kpi.InteractionRate = this.membersCount > 0 ? calculator.GetInteractionRate(this.postCommentsCount, this.postLikesCount, this.postsCount, this.shareCount, this.membersCount) : 0;
kpi.ResponseRate = (double)this.postsWithAdminCommentsCount / this.postsCount;
kpi.UgcRate = (double)(this.postsCount - this.adminPostsCount) / this.postsCount;
kpi.InvolmentRate = this.membersCount > 0 ? (double)this.postsCount / this.membersCount : 0;
kpi.AdminPostsCount = this.adminPostsCount;
kpi.UserPostsCount = this.postsCount - this.adminPostsCount;
kpi.SharePerPosts = (double)this.shareCount / this.postsCount;
return(kpi);
}