#include "stdafx.h"
#include "CPin.h"
#include "CEquipment.h"


namespace SERVO {
	CPin::CPin()
	{
		m_pEquipment = nullptr;
		m_pConnectedPin = nullptr;
	}

	CPin::CPin(CEquipment* pEquipment, PinType type, char* pszName)
	{
		m_type = type;
		m_strName = pszName;
		m_pEquipment = pEquipment;
		m_pConnectedPin = nullptr;
	}

	CPin::~CPin()
	{

	}

	std::string& CPin::getName()
	{
		return m_strName;
	}

	int CPin::getType()
	{
		return m_type;
	}

	BOOL CPin::isConnected()
	{
		return m_pConnectedPin != NULL;
	}

	CPin* CPin::getConnectedPin()
	{
		return m_pConnectedPin;
	}

	CEquipment* CPin::getEquipment()
	{
		return m_pEquipment;
	}

	// ½ÓÊÜÁ¬½Ó
	// pPin -- Ö¸¶¨ÒªÁ¬½ÓµÄpin
	// ·µ»Ø >= 0Á¬½Ó³É¹¦
	int CPin::accpetConnect(CPin* pPin)
	{
		assert(pPin);


		// ÊÇ·ñÒѾ­Á¬½Ó
		if (m_pConnectedPin != NULL) {
			return -1;
		}

		// ±ØÐëÊÇÒ»¸öÊäÈëÒ»¸öÊä³ö£¨Ò»¸ö¹«Ò»¸öĸ£©
		if (m_type == pPin->getType()) {
			return -2;
		}
		m_pConnectedPin = pPin;


		return 0;
	}

	int CPin::connectPin(CPin* pPin)
	{
		assert(pPin);


		// ÊÇ·ñÒѾ­Á¬½Ó
		if (m_pConnectedPin != NULL) {
			return -1;
		}


		// ±ØÐëÊÇÒ»¸öÊäÈëÒ»¸öÊä³ö£¨Ò»¸ö¹«Ò»¸öĸ£©
		if (m_type == pPin->getType()) {
			return -2;
		}


		// ¶Ô·½½ÓÊÜÁ¬½Ó?
		int nRet = pPin->accpetConnect(this);
		if (nRet < 0) {
			return nRet;
		}
		m_pConnectedPin = pPin;


		return 0;
	}

	int CPin::disconnect()
	{
		if (m_pConnectedPin == NULL) {
			return -1;
		}

		assert(m_pConnectedPin->m_pConnectedPin == this);
		m_pConnectedPin->m_pConnectedPin = NULL;
		m_pConnectedPin = NULL;

		return 0;
	}

	int CPin::sendIntent(CIntent* pIntent)
	{
		if (m_pConnectedPin != NULL) {
			return m_pConnectedPin->recvIntent(pIntent);
		}

		return FLOW_REJECT;
	}

	int CPin::recvIntent(CIntent* pIntent)
	{
		assert(m_pEquipment);
		return m_pEquipment->recvIntent(this, pIntent);
	}
}