cpp01/ex05/Harl.cpp

#include "Harl.hpp"
#include <iostream>

typedef void (Harl::*HarlComplaint)(void);

int getLevelIdx(std::string level) {
  static const std::string levels[] = {
      "DEBUG",
      "INFO",
      "WARNING",
      "ERROR",
  };
  for (int i = 0; i < 4; i++) {
    if (level == levels[i])
      return i;
  }
  return -1;
}

void Harl::complain(std::string level) {
  static const HarlComplaint dispatcher[] = {
      &Harl::debug,
      &Harl::info,
      &Harl::warning,
      &Harl::error,
  };
  int idx = getLevelIdx(level);
  if (idx < 0 || idx > 3)
    wrongLevel();
  else {
    HarlComplaint complaint = dispatcher[idx];
    (this->*complaint)();
  }
}

void Harl::debug() {
  std::cout
      << "I love having extra bacon for my "
         "7XL-double-cheese-triple-pickle-special-ketchup burger. I really do!"
      << std::endl;
}

void Harl::info() {
  std::cout
      << "I cannot believe adding extra bacon costs more money. You didn’t put "
         "enough bacon in my burger! If you did, I wouldn’t be asking for more!"
      << std::endl;
}

void Harl::warning() {
  std::cout
      << "I think I deserve to have some extra bacon for free. I’ve been "
         "coming for years, whereas you started working here just last month."
      << std::endl;
}

void Harl::error() {
  std::cout << "This is unacceptable! I want to speak to the manager now."
            << std::endl;
}

void Harl::wrongLevel() { std::cout << "Wait, I'm confused..." << std::endl; }