private async Task <HandlerExec> Exec(EventHandler handler, HandlerParams param)
{
var provider = param.ServiceProvider;
var method = handler.Method;
try
{
var instance = (BotEventHandler)ActivatorUtilities.CreateInstance(provider, method.DeclaringType);
instance.__Instantiate(param);
object[] paramObjects;
if (handler.Parameters.Length > 0 && handler.Parametrized)
{
var parseOk = param.TryParseParams(handler.Parameters);
var paramses = handler.Parameters;
if (parseOk)
{
paramObjects =
paramses.Select(x =>
{
return(param.CommandParameters
.First(p => p.Position == x.Position)
.TypedValue);
})
.ToArray();
}
else
{
return(HandlerExec.Error);
}
}
else
{
paramObjects = null;
}
if (method.ReturnParameter.ParameterType == typeof(Task))
{
var task = method.Invoke(instance, paramObjects);
await(Task) task;
return(HandlerExec.Continue);
}
else if (method.ReturnParameter.ParameterType == typeof(Task <bool>))
{
var task = method.Invoke(instance, paramObjects);
return(await(Task <bool>) task ? HandlerExec.Continue : HandlerExec.Break);
}
method.Invoke(instance, paramObjects);
return(HandlerExec.Continue);
} catch (ArgumentException e)
{
Console.WriteLine(e);
}
return(HandlerExec.Error);
}
