public Task AddFileRequestEventAsync(string sourceIp, string filename)
{
TvItemFile itemFile = _tvItemService.FetchTvItemFileAsync(filename).Result;
if (itemFile != null)
{
WebClientLog wcl = new WebClientLog()
{
Source = sourceIp,
TimeInserted = DateTime.Now,
TvItemFileId = itemFile.ID,
TvScreenId = KnownTvScreens.FirstOrDefault(x => x.IpAddress.Equals(sourceIp))?.ID,
Type = itemFile.IsVideoFile() ? WebClientLogType.VideoRequest : WebClientLogType.ImageRequest
};
Context.Add(wcl);
Context.SaveChanges();
Console.WriteLine($"adding file request from ip {sourceIp} for file: " + wcl);
}
else
{
WebClientLog wcl = new WebClientLog()
{
Source = sourceIp,
TimeInserted = DateTime.Now,
Message = $"file with filename [{filename}] not found!",
Type = WebClientLogType.Exception
};
Context.Add(wcl);
Context.SaveChanges();
Console.WriteLine("file not found on file request: " + wcl);
}
return(Task.CompletedTask);
}
public Task AddHandShakeAsync(string sourceIp, WebClientLogType type, Location location)
{
if (!type.Equals(WebClientLogType.ProgramRequest) && !type.Equals(WebClientLogType.ChatRequest))
{
throw new InvalidOperationException($"{type.ToString()} is not allowed type. Allowed types: [ProgramRequest, ChatRequest]");
}
DateTime now = DateTime.Now;
// find/add known screen according to ip and update lastHandshake
TvScreen knownScreen = KnownTvScreens.FirstOrDefault(x => x.IpAddress.Equals(sourceIp));
if (knownScreen == null)
{
knownScreen = new TvScreen()
{
Location = location,
LastHandshake = now,
IpAddress = sourceIp,
Description = "located at " + location
};
Console.WriteLine("adding new known screen: " + knownScreen);
Context.Add(knownScreen);
}
else
{
knownScreen.LastHandshake = now;
if (knownScreen.Location != location)
{
// very rare and improbable case
Console.WriteLine($"CHANGING LOCATION FOR {knownScreen.IpAddress} FROM {knownScreen.Location} TO {location}.");
knownScreen.Location = location;
}
}
var activeScreens = Context.TvScreenHandshake
.Where(x => x.IsActive)
.ToList();
// from active screens inactivate timeouted ones
var timeoutedScreens = activeScreens.Where(x => (now - x.LastHandshake).TotalMinutes > 10).ToList();
var timeoutIds = timeoutedScreens.Select(x => x.ID).ToList();
activeScreens = activeScreens.Where(x => !timeoutIds.Contains(x.ID)).ToList();
if (timeoutedScreens.Count > 0)
{
// inactivate all timeouted screens
Console.WriteLine("inactivating clientHandshakes with ids: " + string.Join(",", timeoutIds));
timeoutedScreens.ForEach(x =>
{
x.IsActive = false;
Context.Update(x);
});
}
// from active screens find the one with the same ip and location, if not present, create new active screen
TvScreenHandshake tvScreenHandshake = activeScreens.FirstOrDefault(x => x.TvScreen.Equals(knownScreen) && x.Type.Equals(type));
if (tvScreenHandshake == null)
{
TvScreenHandshake tsh = new TvScreenHandshake()
{
FirstHandshake = now,
LastHandshake = now,
IsActive = true,
TvScreen = knownScreen,
Type = type
};
Console.WriteLine("adding new active screen: " + tsh);
Context.Add(tsh);
}
else
{
tvScreenHandshake.LastHandshake = now;
Context.Update(tvScreenHandshake);
}
Context.SaveChanges();
return(Task.CompletedTask);
}
