#include <framework/objectmanager/ObjectManager.h>
#include <framework/serviceinterface/ServiceInterfaceStream.h>
#include <cstdlib>

ObjectManager::ObjectManager( void (*setProducer)() ):
		produceObjects(setProducer) {
	//There's nothing special to do in the constructor.
}


ObjectManager::~ObjectManager() {
	// Map is STL object and deletes its own pointers.
}

ReturnValue_t ObjectManager::insert( object_id_t id, SystemObjectIF* object) {
	auto returnPair = objectList.emplace(id, object);
	if (returnPair.second) {
	    // sif::debug << "ObjectManager::insert: Object " << std::hex
	    //            << (int)id << std::dec << " inserted." << std::endl;
		return this->RETURN_OK;
	} else {
		sif::error << "ObjectManager::insert: Object id " << std::hex
		           << (int)id << std::dec << " is already in use!" << std::endl;
		//This is very severe and difficult to handle in other places.
		std::exit(INSERTION_FAILED);
	}
}

ReturnValue_t ObjectManager::remove( object_id_t id ) {
	if ( this->getSystemObject(id) != NULL ) {
		this->objectList.erase( id );
		sif::debug << "ObjectManager::removeObject: Object " << std::hex
		           << (int)id << std::dec << " removed." << std::endl;
		return RETURN_OK;
	} else {
		sif::error << "ObjectManager::removeObject: Requested object "
		        << std::hex << (int)id << std::dec << " not found." << std::endl;
		return NOT_FOUND;
	}
}



SystemObjectIF* ObjectManager::getSystemObject( object_id_t id ) {
	auto listIter = this->objectList.find( id );
	if (listIter == this->objectList.end() ) {
		return nullptr;
	} else {
		return listIter->second;
	}
}

ObjectManager::ObjectManager() : produceObjects(nullptr) {

}

void ObjectManager::initialize() {
	if(produceObjects == nullptr) {
		sif::error << "ObjectManager: Passed produceObjects functions is"
				"nullptr!" << std::endl;
		return;
	}
	this->produceObjects();
	ReturnValue_t return_value = RETURN_FAILED;
	uint32_t error_count = 0;
	for (auto it = this->objectList.begin(); it != objectList.end(); it++ ) {
		return_value = it->second->initialize();
		if ( return_value != RETURN_OK ) {
			object_id_t var = it->first;
			sif::error << "Object 0x" << std::hex <<  std::setw(8) <<
					std::setfill('0')<< var << " failed to initialize " <<
					"with code 0x" << return_value << std::dec << std::endl;
			error_count++;
		}
	}
	if (error_count > 0) {
		sif::error << "ObjectManager::ObjectManager: Counted " << error_count
		           << " failed initializations." << std::endl;
	}
	//Init was successful. Now check successful interconnections.
	error_count = 0;
	for (auto listIter = this->objectList.begin();
			listIter != objectList.end(); listIter++ ) {
		return_value = listIter->second->checkObjectConnections();
		if ( return_value != RETURN_OK ) {
			sif::error << "Object " << std::hex <<  (int) listIter->first
			        << " connection check failed with code 0x" << return_value
			        << std::dec << std::endl;
			error_count++;
		}
	}
	if (error_count > 0) {
		sif::error << "ObjectManager::ObjectManager: Counted " << error_count
		           << " failed connection checks." << std::endl;
	}

}

void ObjectManager::printList() {
	std::map<object_id_t, SystemObjectIF*>::iterator it;
	sif::debug << "ObjectManager: Object List contains:" << std::endl;
	for (it = this->objectList.begin(); it != this->objectList.end(); it++) {
		sif::debug << std::hex << it->first << " | " << it->second << std::endl;
	}
}