// motor.cpp - Motor class implementation

#include "motor.h"
// bring in the motor class definition

const double MAX_VOLTAGE = 600.0;

CMotor::CMotor()
{
  m_voltage = 0;
}

CMotor::CMotor(const string & idNum, double voltage )
{
  set_ID(idNum);
  set_Voltage(voltage);
}

bool CMotor::set_ID(const string & newID)
// Uses boolean return value to indicate input
// error.
{ 
  if( newID.size() == ID_SIZE )
  {
    m_ID = newID;
    return true;
  } 
  else
    return false;
}

string CMotor::get_ID() const
{
  return m_ID;
}

void CMotor::set_Voltage(double newVolts)
// Displays error message immediately
{ 
  if( newVolts >= 0 && newVolts <= MAX_VOLTAGE )
    m_voltage = newVolts; 
  else
    cout << "Voltage is out of range and cannot be set.\n";
}

double CMotor::get_Voltage() const
{
  return m_voltage;
}
  
void CMotor::WriteToFile( ofstream & outfile ) const
{
	outfile 
    << m_ID << "\n"
		<< m_voltage << "\n";
}

void CMotor::Display() const
{
  cout <</* fixed << */ setprecision(2)
	     << "ID: " << m_ID 
	  	 << "     Voltage: " << m_voltage 
			 << endl;
}

void CMotor::Input()
{
	string temp;
  bool validID;
  do {
	  cout << "Enter a " << ID_SIZE 
         << "-digit ID: ";
	  cin >> temp;
	  validID = set_ID(temp);
	  if( !validID )
      cout << "Rejected because the ID length was invalid...\n";
  } while( !validID );

	double v;
	cout << "Voltage: ";
	cin >> v;
	set_Voltage(v);
}


void CMotor::ReadFromFile(ifstream & infile)
{
  infile >> m_ID >> m_voltage;
}