#include "logger_base.hh"

#include <iostream>
#include <mutex>

namespace {

class LoggerStdio : public LoggerBase {
public:
  LoggerStdio() = default;

protected:
  void msg(Level lvl, std::string_view msg) override {
    std::lock_guard<std::mutex> lock(mutex_);
    switch (lvl) {
    case Level::ERR:
      std::cerr << "Error: " << msg << std::endl;
      break;
    case Level::WARN:
      std::cout << "Warning: " << msg << std::endl;
      break;
    case Level::INFO:
      std::cout << msg << std::endl;
      break;
    case Level::DBG:
      std::cout << "Debug: " << msg << std::endl;
      break;
    }
  }

private:
  std::mutex mutex_;
};

}  // namespace

std::unique_ptr<Logger> Logger::create_stdio() {
  return std::make_unique<LoggerStdio>();
}