public void Log <TState>(LogLevel logLevel, EventId eventId, TState state, Exception exception, Func <TState, Exception, string> formatter)
{
if (!IsEnabled(logLevel))
{
return;
}
if (formatter != null)
{
LogHistory.Add(formatter(state, exception));
}
else
{
if (state != null)
{
LogHistory.Add($"{DateTime.Now:s} [{logLevel.ToString()}]: {state}");
}
if (exception != null)
{
LogHistory.Add($"{DateTime.Now:s} [{logLevel.ToString()}] Exception Details: {exception.ToString().PadLeft(512, ' ').Substring(0, 511)}");
}
}
//cleanup LogHistory
if (LogHistory.Count > 9999)
{
for (var i = 0; i < 1000; i++)
{
LogHistory.RemoveAt(0);
}
}
}