strategy.dart

void main() {
  Employee emp1 = employee(EmployeeTypes.salesman);
  print(emp1.type.name);
}

// Replace Conditional with ploymorphism
Employee employee(EmployeeTypes type) {
  switch (type) {
    case EmployeeTypes.salesman:
      return Salesman();
    case EmployeeTypes.engineer:
    default:
      return Engineer();
  }
}

abstract class Employee {
  EmployeeTypes get type;
}

class Salesman implements Employee {
  @override
  EmployeeTypes get type => EmployeeTypes.salesman;
}

class Engineer implements Employee {
  @override
  EmployeeTypes get type => EmployeeTypes.engineer;
}

enum EmployeeTypes {
  salesman,
  engineer,
}