// an example of multiple inheritance

#include <string>
#include <iostream>
using namespace std;

class Person {
private:
  string _name;
public:
  Person(string n) : _name(n) { }
  virtual string name() const { return _name; }
};

// name always starts with Student
class Student : public Person {
private:
  string _major;
public:
  Student(string name, string major) : Person("Student " + name), _major(major) { }
  virtual string major() const { return _major; }
};

class Worker : public Person {
private:
  int _centsPerHour;
  string _department;
public:
  Worker(string name, int payRate, string dept) 
    : Person("Worker " + name), _centsPerHour(payRate), _department(dept)
  { }
  int payInCents(int hrs) const { 
    if ( hrs <= 40 ) 
      return _centsPerHour * hrs;
    else
      return _centsPerHour * 40 + (_centsPerHour * (hrs - 40) * 3) / 2;
  }
  virtual string department() const { return _department; }
};

// can only work in department that is the same as major for minimum wage
class StudentWorker : public Worker, public Student {
public:
  StudentWorker(string name, string major) 
    : Student(name, major), Worker(name, 725, major)
  { }
};

int main() {
  Worker *jane = new Worker("Jane", 1535, "road construction");
  Student *anna = new Student("Anna", "human resources");
  StudentWorker *tom = new StudentWorker("Tom", "avionics");
  
  Worker *people_who_get_paid[2] = {jane, tom};
  for(Worker* w : people_who_get_paid) {
    cout << "When " << w->name() << " works 20 hours, they get " << w->payInCents(20)
         << " cents from " << w->department() << endl;
  }
  cout << anna->name() << " is majoring in " << anna->major() << endl;

  return 0;
}