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* GNU Lesser General Public License Usage
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#include "energymeter.h"
#include "hardware/modbus/modbusrtureply.h"

EnergyMeter::EnergyMeter(ModbusRtuMaster *modbusMaster, int slaveAddress, const QHash<ModbusRegisterType, ModbusRegisterDescriptor> &modbusRegisters, QObject *parent) :
    QObject(parent),
    m_modbusRtuMaster(modbusMaster),
    m_slaveAddress(slaveAddress),
    m_modbusRegisters(modbusRegisters)
{

}

bool EnergyMeter::init()
{
    return true;
}

bool EnergyMeter::connected()
{
    return m_connected;
}

bool EnergyMeter::getVoltage()
{
    if (!m_modbusRegisters.contains(ModbusRegisterType::Voltage))
        return false;

    ModbusRegisterDescriptor descriptor = m_modbusRegisters.value(ModbusRegisterType::Voltage);
    getRegister(ModbusRegisterType::Voltage, descriptor);
    return true;
}

bool EnergyMeter::getCurrent()
{
    if (!m_modbusRegisters.contains(ModbusRegisterType::Current))
        return false;

    ModbusRegisterDescriptor descriptor = m_modbusRegisters.value(ModbusRegisterType::Current);
    getRegister(ModbusRegisterType::Current, descriptor);
    return true;
}

bool EnergyMeter::getFrequency()
{
    if (!m_modbusRegisters.contains(ModbusRegisterType::Frequency))
        return false;

    ModbusRegisterDescriptor descriptor = m_modbusRegisters.value(ModbusRegisterType::Frequency);
    getRegister(ModbusRegisterType::Frequency, descriptor);
    return true;
}

bool EnergyMeter::getPowerFactor()
{
    if (!m_modbusRegisters.contains(ModbusRegisterType::PowerFactor))
        return false;

    ModbusRegisterDescriptor descriptor = m_modbusRegisters.value(ModbusRegisterType::PowerFactor);
    getRegister(ModbusRegisterType::PowerFactor, descriptor);
    return true;
}

bool EnergyMeter::getActivePower()
{
    if (!m_modbusRegisters.contains(ModbusRegisterType::ActivePower))
        return false;

    ModbusRegisterDescriptor descriptor = m_modbusRegisters.value(ModbusRegisterType::ActivePower);
    getRegister(ModbusRegisterType::ActivePower, descriptor);
    return true;
}

bool EnergyMeter::getEnergyProduced()
{
    if (!m_modbusRegisters.contains(ModbusRegisterType::EnergyProduced))
        return false;

    ModbusRegisterDescriptor descriptor = m_modbusRegisters.value(ModbusRegisterType::EnergyProduced);
    getRegister(ModbusRegisterType::EnergyProduced, descriptor);
    return true;
}

bool EnergyMeter::getEnergyConsumed()
{
    if (!m_modbusRegisters.contains(ModbusRegisterType::EnergyConsumed))
        return false;

    ModbusRegisterDescriptor descriptor = m_modbusRegisters.value(ModbusRegisterType::EnergyConsumed);
    getRegister(ModbusRegisterType::EnergyConsumed, descriptor);
    return true;
}

void EnergyMeter::getRegister(ModbusRegisterType type, ModbusRegisterDescriptor descriptor)
{

    ModbusRtuReply *reply;
    if (descriptor.functionCode() == 1){

    } else if (descriptor.functionCode() == 2){

    } else if (descriptor.functionCode() == 3){
        reply = m_modbusRtuMaster->readHoldingRegister(m_slaveAddress, descriptor.address(), descriptor.length());
    } else if (descriptor.functionCode() == 4){
    }
    connect(reply, &ModbusRtuReply::finished, reply, &ModbusRtuReply::deleteLater);
    connect(reply, &ModbusRtuReply::finished, this, [reply, type, this] {
        if (reply->error() != ModbusRtuReply::NoError) {
            return;
        }
        double value = 0;
        if (reply->result().length() == 2) {
            value = static_cast<float>(reply->result().at(0) << 16 | reply->result().at(1));
        }

        emit valueReceived(type, value);
    });
}