#include "RUDelegateFactory.h"

NS_RU_BEGIN

static DelegateFactory *_instance = nullptr;
DelegateFactory* DelegateFactory::getInstance()
{
    if (_instance == nullptr)
    {
        _instance = new (std::nothrow) DelegateFactory;
    }
    return _instance;
}

void DelegateFactory::registerStateDelegateCreator(const std::string& creatorKey, std::function<StateDelegate*(void)> stateDelegateCreator)
{
    CCASSERT(_stateDelegateCreators.find(creatorKey) == _stateDelegateCreators.end(), "wtf");
    _stateDelegateCreators.emplace(creatorKey,stateDelegateCreator);
}

StateDelegate* DelegateFactory::createStateDelegate(const std::string& creatorKey)
{
    StateDelegate* stateDelegate = nullptr;
    
    //如果注册器的key未注册,返回默认注册器
    if (creatorKey.empty() || _stateDelegateCreators.find(creatorKey) == _stateDelegateCreators.end()) {
        stateDelegate = new StateDelegate();
    }else{
        auto stateDelegateCreator = _stateDelegateCreators.find(creatorKey)->second;
        stateDelegate = stateDelegateCreator();
    }
    return stateDelegate;
}


NS_RU_END