#include "precompile.h"

#include "btcontext.h"
#include "creature.h"
#include "trigger.h"
#include "btevent.h"

BtContext::~BtContext()
{
    for (auto& tuple : handlers_) {
        if (std::get<0>(tuple).Get() && !std::get<1>(tuple).expired()) {
            std::get<0>(tuple).Get()->GetTrigger()->RemoveEventHandler(std::get<1>(tuple));
        }
    }
}

void BtContext::AddHandler(CreatureWeakPtr target, std::weak_ptr<EventHandlerPtr> handler)
{
    handlers_.push_back(std::make_tuple(target, handler));
}


void BtContext::AddEvent(std::shared_ptr<BtEvent> event)
{
    events_.push_back(event);
}

bool BtContext::HasEvent()
{
    if (!events_.empty()) {
        auto event = events_.at(events_.size() - 1);
        return event->HasEvent();
    }
    return false;
}

void BtContext::FireEvent(BaseAgent* agent)
{
    if (!events_.empty()) {
        auto event = events_.at(events_.size() - 1);
        if (event->HasEvent()) {
            event->FireEvent(agent);
        }
    }
}