// Calculate most viewed channel
public async Task <List <TimePerChannelViewModel> > GetMostTimeChannel()
{
var channelIds = new List <string>();
var timeWatched = new List <TimeSpan>();
foreach (var video in HistoryVideos)
{
channelIds.Add(VideoViewModelsDict[video.GetVideoID()].ChannelId);
}
channelIds = channelIds.Distinct().ToList();
foreach (var channelId in channelIds)
{
TimeSpan time = new TimeSpan(0, 0, 0);
foreach (HistoryVideo historyVideo in HistoryVideos)
{
if (VideoViewModelsDict[historyVideo.GetVideoID()].ChannelId == channelId)
{
time = time.Add(VideoViewModelsDict[historyVideo.GetVideoID()].GetDuration());
}
}
timeWatched.Add(time);
time = new TimeSpan(0, 0, 0);
}
var channelIdsArr = channelIds.ToArray();
var timeWatchedArr = timeWatched.ToArray();
Array.Sort(timeWatchedArr, channelIdsArr);
Array.Reverse(timeWatchedArr);
Array.Reverse(channelIdsArr);
channelIds = channelIdsArr.Take(10).ToList();
timeWatched = timeWatchedArr.Take(10).ToList();
List <TimePerChannelViewModel> timePerChannelViewModels = new List <TimePerChannelViewModel>();
for (int i = 0; i < channelIds.Count; i++)
{
timePerChannelViewModels.Add(new TimePerChannelViewModel()
{
Channel = await YouTubeApiHelper.GetInstance().GetChannel(channelIds[i]),
TimeWatched = timeWatched[i]
});
}
timePerChannelViewModels = timePerChannelViewModels.OrderByDescending(vm => vm.TimeWatched).ToList();
//using (StreamWriter sw = new StreamWriter(UriHelper.CALCULATIONS_OUTPUT_DIR + "/Time Watched Per Channel - " + DateTime.Now.ToFileTime() + ".csv"))
//{
// foreach (var viewModel in timePerChannelViewModels)
// {
// sw.WriteLine(viewModel.Channel + ";" + Math.Round(viewModel.TimeWatched.TotalHours) + " Hours (" + Math.Round(viewModel.TimeWatched.TotalHours * 60) + " minutes)");
// }
//}
return(timePerChannelViewModels);
}
public async Task Initialise(string jobId, string takeoutDataJson, string emailAddress)
{
Stopwatch stopWatch = new Stopwatch();
stopWatch.Start();
// Update DB Status
YouTubeProcessingJobStatus jobStatus = new YouTubeProcessingJobStatus()
{
JobId = jobId,
JobStatus = JobStatus.INITIATED
};
FileDataHelper fileDataHelper = new FileDataHelper();
fileDataHelper.SaveJobStatus(jobStatus);
System.Diagnostics.Debug.WriteLine("Starting");
List <HistoryVideo> historyVideos = GetHistoryFromJson(takeoutDataJson).ToList();
System.Diagnostics.Debug.WriteLine("Fetching video data");
Dictionary <string, VideoViewModel> videoViewModelsDict = await YouTubeApiHelper.GetInstance().GetVideos(historyVideos.Take(8000).ToList());
System.Diagnostics.Debug.WriteLine("Doing calculations");
jobStatus.JobStatus = JobStatus.PROCESSING;
fileDataHelper.SaveJobStatus(jobStatus);
YouTubeProcessingJobData processingJobData = await PerformCalculations(jobId, historyVideos, videoViewModelsDict);
fileDataHelper.SaveProcessingJob(processingJobData);
jobStatus.JobStatus = JobStatus.COMPLETED;
fileDataHelper.SaveJobStatus(jobStatus);
System.Diagnostics.Debug.WriteLine("Sending email");
//await MailJetHelper.SendEmail(emailAddress, "https://localhost:44369/");
// Update DB Status
// Save Job to DB
stopWatch.Stop();
// Get the elapsed time as a TimeSpan value.
TimeSpan ts = stopWatch.Elapsed;
// Format and display the TimeSpan value.
string elapsedTime = String.Format("{0:00}:{1:00}:{2:00}.{3:00}",
ts.Hours, ts.Minutes, ts.Seconds,
ts.Milliseconds / 10);
System.Diagnostics.Debug.WriteLine("Completed in " + elapsedTime);
}
// Calculate most viewed channel
public async Task <List <ViewsPerChannelViewModel> > GetMostViewedChannel()
{
var channelIds = new List <string>();
var numVideosWatched = new List <int>();
foreach (var video in HistoryVideos)
{
channelIds.Add(VideoViewModelsDict[video.GetVideoID()].ChannelId);
}
channelIds = channelIds.Distinct().ToList();
foreach (var channelId in channelIds)
{
int numVids = 0;
foreach (HistoryVideo historyVideo in HistoryVideos)
{
if (VideoViewModelsDict[historyVideo.GetVideoID()].ChannelId == channelId)
{
numVids++;
}
}
numVideosWatched.Add(numVids);
numVids = 0;
}
var channelIdsArr = channelIds.ToArray();
var numVideosWatchedArr = numVideosWatched.ToArray();
Array.Sort(numVideosWatchedArr, channelIdsArr);
Array.Reverse(numVideosWatchedArr);
Array.Reverse(channelIdsArr);
channelIds = channelIdsArr.Take(10).ToList();
numVideosWatched = numVideosWatchedArr.Take(10).ToList();
List <ViewsPerChannelViewModel> viewsPerChannelViewModels = new List <ViewsPerChannelViewModel>();
for (int i = 0; i < channelIds.Count; i++)
{
viewsPerChannelViewModels.Add(new ViewsPerChannelViewModel()
{
Channel = await YouTubeApiHelper.GetInstance().GetChannel(channelIds[i]),
NumVideos = numVideosWatched[i]
});
}
viewsPerChannelViewModels = viewsPerChannelViewModels.OrderByDescending(vm => vm.NumVideos).ToList();
//using (StreamWriter sw = new StreamWriter(UriHelper.CALCULATIONS_OUTPUT_DIR + "/Views Per Channel - " + DateTime.Now.ToFileTime() + ".csv"))
//{
// foreach (var viewModel in viewsPerChannelViewModels)
// {
// sw.WriteLine(viewModel.Channel + ";" + viewModel.NumVideos);
// }
//}
return(viewsPerChannelViewModels);
}
public static YouTubeApiHelper GetInstance()
{
if (_instance == null)
{
_instance = new YouTubeApiHelper();
}
return(_instance);
}