// Fig. 10.39: Employee.cpp
// Class Employee member-function definitions.
#include <fmt/format.h> 
#include <string> 
#include "Employee.h" 

// constructor 
Employee::Employee(std::string_view name, CompensationModel model)
   : m_name{name}, m_model{model} {}

// change the Employee's CompensationModel
void Employee::setCompensationModel(CompensationModel model) {
   m_model = model;
}

// return the Employee's earnings
double Employee::earnings() const {
   auto getEarnings{[](const auto& model) {return model.earnings(); }};
   return std::visit(getEarnings, m_model);
}

// return string representation of an Employee object        
std::string Employee::toString() const {
   auto getString{[](const auto& model) {return model.toString(); }};
   return fmt::format("{}\n{}", m_name, std::visit(getString, m_model));
}


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