/// <summary>
/// Set value. If was binded - override it.
/// If type cant be casted - throw exception.
/// </summary>
public void BindValue(string parameterName, object value)
{
var data = _dataByParamName[parameterName];
var t = data.Info.ParameterType;
var castException = new TelegramAspException($"Model binding exception. Object '{value}' can't be used as '{t}'.");
if ((value != null) && !t.IsAssignableFrom(value.GetType()))
{
throw castException;
}
if (value == null && t.IsValueType)
{
throw castException;
}
data.IsBinded = true;
data.Value = value;
}
/// <summary>
/// Execute initialization callbacks and build pipeline.
/// <para></para>
/// Called automatically on Start() first call.
/// </summary>
/// <param name="serviceProvider">
/// If not null - will use passed provider instead builded from service collection.
/// Useful when you wan't to set same container in ASP.NET and here.
/// </param>
/// <param name="updatesReceiver">
/// Use it to customize how bot receiving updates.
/// Default is <see cref="PollingUpdatesReceiver"/> and subscribe on <see cref="ITelegramBotClient.OnUpdate"/>.
/// It will set webhook string empty, to enable polling.
/// </param>
public void Setup(IServiceProvider serviceProvider = null, IUpdatesReceiver updatesReceiver = null)
{
//?Why use IUpdatesReceiver? Why not just make ProcessUpdate method public?
//Was decided to use interface with event to wrote more "infrastructure" code in BotManager.
lock (_setupLocker)
{
try
{
if (_isSetup)
{
return;
}
//Init bot context.
var botInfo = _bot.GetMeAsync().Result;
BotContext = new BotClientContext(_bot, botInfo);
//Set UpdateReceiver.
_updatesReceiver = updatesReceiver ?? new PollingUpdatesReceiver();
_updatesReceiver.Init(this);
//Build service provider.
string providerIndentifierForLog;
if (serviceProvider == null)
{
Services = _serviceCollectionWrapper.Services.BuildServiceProvider();
providerIndentifierForLog = "ServiceProvider builded from ServiceCollection.";
}
else
{
Services = serviceProvider;
providerIndentifierForLog = "Passed ServiceProvider used.";
}
_serviceCollectionWrapper = null;
//Resolve services needed for BotManager.
ResolveBotManagerServices();
_logger.LogTrace("Services initialized. " + providerIndentifierForLog);
//Not implemented.
IPipelineBuilder pipelineBuilder = new PipelineBuilder(Services);
//Register middleware.
UseMandatoryMiddleware(pipelineBuilder);
if (_pipelineBuilderAction == null)
{
throw new NullReferenceException(
"Can`t init without pipeline builder configure action. " +
"Probably ConfigureBuilder wasn't invoked."
);
}
_pipelineBuilderAction.Invoke(pipelineBuilder);
_pipelineBuilderAction = null;
//Build pipeline.
_updateProcessingDelegate = pipelineBuilder.Build();
_isSetup = true;
_logger.LogTrace("Pipeline builded.");
}
catch (Exception ex)
{
var exception = new TelegramAspException("BotManager setup exception.", ex);
if (_logger == null)
{
Debug.WriteLine(exception.ToString());
}
else
{
_logger.LogError(exception, "");
}
throw exception;
}
}
}
