public async Task <IResult <IReadOnlyCollection <byte> > > HandleAsync(GetHeatMapCommand command)
{
var validationResult = await IsValidAsync(command);
if (validationResult.HasFailed())
{
return(validationResult.Map <IReadOnlyCollection <byte> >());
}
var userId = command.UserId ?? command.CurrentUserId;
var gamesCount = await _dataContext.Users.Where(x => x.Id == userId).Select(x => x.Games).CountAsync();
var existingActualHeatMap = await _dataContext.GeneratedHeatMaps
.AsNoTracking()
.FirstOrDefaultAsync(x => x.UserId == userId && x.GeneratedAt > DateTime.Now.AddDays(-1));
if (existingActualHeatMap != null && existingActualHeatMap.GamesCount == gamesCount)
{
return(existingActualHeatMap.HeatMap.ToList().ToSuccessfulResult());
}
PythonScriptRunner.RunScript("PythonScripts/heatmap.py", userId.ToString());
var fileInfo = new FileInfo("heatplot.png");
var data = new byte[fileInfo.Length];
await using (var fs = fileInfo.OpenRead())
{
fs.Read(data, 0, data.Length);
}
fileInfo.Delete();
_dataContext.GeneratedHeatMaps.Add(new GeneratedHeatmap
{
HeatMap = data,
UserId = userId,
GeneratedAt = DateTime.Now,
GamesCount = gamesCount
});
await _dataContext.SaveChangesAsync();
return(data.ToList().ToSuccessfulResult());
}
private Task <IResult> IsValidAsync(GetHeatMapCommand query)
{
_validator.ValidateUserIds(query.CurrentUserId, query.UserId);
return(_validator.ValidateAsync());
}
