private async Task <TaskResult> DoSingle(int heroId)
{
var p1 = await writer.ImproveHeroAsync(heroId);
if (p1 == null)
{
return(TaskResult.LostConnection);
}
if (p1.HasError)
{
// Không đủ chiến tích.
return(TaskResult.CanBeDone);
}
// Giữ chỉ số.
var p2 = await writer.KeepStatsAsync(heroId);
if (p2 == null)
{
return(TaskResult.LostConnection);
}
return(TaskResult.Done);
}