public async Task <IResult> ExecuteAsync(ITurnContext context, IEnumerable <object> argList, IEnumerable <object> paramList, IServiceProvider services)
{
services = services ?? EmptyServiceProvider.Instance;
try
{
object[] args = GenerateArgs(argList, paramList);
for (int position = 0; position < Parameters.Count; position++)
{
var parameter = Parameters[position];
object argument = args[position];
var result = await parameter.CheckPreconditionsAsync(context, argument, services).ConfigureAwait(false);
if (!result.IsSuccess)
{
return(ExecuteResult.FromError(result));
}
}
switch (RunMode)
{
case RunMode.Sync: //Always sync
return(await ExecuteInternalAsync(context, args, services).ConfigureAwait(false));
case RunMode.Async: //Always async
var t2 = Task.Run(async() =>
{
await ExecuteInternalAsync(context, args, services).ConfigureAwait(false);
});
break;
}
return(ExecuteResult.FromSuccess());
}
catch (Exception ex)
{
return(ExecuteResult.FromError(ex));
}
}
private async Task <IResult> ExecuteInternalAsync(ITurnContext context, object[] args, IServiceProvider services)
{
//await Module.Service._cmdLogger.DebugAsync($"Executing {GetLogText(context)}").ConfigureAwait(false);
try
{
var task = _action(context, args, services, this);
if (task is Task <IResult> resultTask)
{
var result = await resultTask.ConfigureAwait(false);
await Module.Service._commandExecutedEvent.InvokeAsync(this, context, result).ConfigureAwait(false);
if (result is RuntimeResult execResult)
{
return(execResult);
}
}
else if (task is Task <ExecuteResult> execTask)
{
var result = await execTask.ConfigureAwait(false);
await Module.Service._commandExecutedEvent.InvokeAsync(this, context, result).ConfigureAwait(false);
return(result);
}
else
{
await task.ConfigureAwait(false);
var result = ExecuteResult.FromSuccess();
await Module.Service._commandExecutedEvent.InvokeAsync(this, context, result).ConfigureAwait(false);
}
var executeResult = ExecuteResult.FromSuccess();
return(executeResult);
}
catch (Exception ex)
{
var originalEx = ex;
while (ex is TargetInvocationException) //Happens with void-returning commands
{
ex = ex.InnerException;
}
var wrappedEx = new CommandException(this, context, ex);
await Module.Service._cmdLogger.ErrorAsync(wrappedEx).ConfigureAwait(false);
var result = ExecuteResult.FromError(ex);
if (Module.Service._throwOnError)
{
if (ex == originalEx)
{
throw;
}
else
{
ExceptionDispatchInfo.Capture(ex).Throw();
}
}
return(result);
}
finally
{
//TODO add login back --
//await Module.Service._cmdLogger.VerboseAsync($"Executed {GetLogText(context)}").ConfigureAwait(false);
}
}
private static void BuildCommand(CommandBuilder builder, TypeInfo typeInfo, MethodInfo method, CommandService service, IServiceProvider serviceprovider)
{
var attributes = method.GetCustomAttributes();
foreach (var attribute in attributes)
{
switch (attribute)
{
case CommandAttribute command:
builder.AddAliases(command.Text);
builder.RunMode = command.RunMode;
builder.Name = builder.Name ?? command.Text;
builder.IgnoreExtraArgs = command.IgnoreExtraArgs ?? service._ignoreExtraArgs;
break;
case NameAttribute name:
builder.Name = name.Text;
break;
case PriorityAttribute priority:
builder.Priority = priority.Priority;
break;
case SummaryAttribute summary:
builder.Summary = summary.Text;
break;
case RemarksAttribute remarks:
builder.Remarks = remarks.Text;
break;
case AliasAttribute alias:
builder.AddAliases(alias.Aliases);
break;
case PreconditionAttribute precondition:
builder.AddPrecondition(precondition);
break;
default:
builder.AddAttributes(attribute);
break;
}
}
if (builder.Name == null)
{
builder.Name = method.Name;
}
var parameters = method.GetParameters();
int pos = 0, count = parameters.Length;
foreach (var paramInfo in parameters)
{
builder.AddParameter((parameter) =>
{
BuildParameter(parameter, paramInfo, pos++, count, service, serviceprovider);
});
}
var createInstance = ReflectionUtils.CreateBuilder <IModuleBase>(typeInfo, service);
async Task <IResult> ExecuteCallback(ITurnContext context, object[] args, IServiceProvider services, CommandInfo cmd)
{
var instance = createInstance(services);
instance.SetContext(context);
try
{
instance.BeforeExecute(cmd);
var task = method.Invoke(instance, args) as Task ?? Task.Delay(0);
if (task is Task <RuntimeResult> resultTask)
{
return(await resultTask.ConfigureAwait(false));
}
else
{
await task.ConfigureAwait(false);
return(ExecuteResult.FromSuccess());
}
}
finally
{
instance.AfterExecute(cmd);
(instance as IDisposable)?.Dispose();
}
}
builder.Callback = ExecuteCallback;
}