#include <chrono>
#include <format>
#include <iostream>
#include <mutex>
#include <string>
#include <cstdio>
#include <cstdarg>

#include <logger.hpp>

Logger logger;
static std::mutex mtx;

Logger::Logger(const std::string ilabel) {
        label = ilabel;
}

Logger::Logger(void) {
        label = "global";
}
void Logger::Log(const std::string& message) {
        auto now = std::chrono::system_clock::now();
        std::chrono::zoned_time localnow{std::chrono::current_zone(), now};
        std::string timenow = std::format("{:%Y-%m-%dT%H:%M:%OS%Z}", localnow);
        std::lock_guard<std::mutex> lock(mtx);
        std::cout << std::format("{} {} {}\n", timenow, label, message);
}


void Logger::Logf(const std::string& format, ...) {
        auto now = std::chrono::system_clock::now();
        std::chrono::zoned_time localnow{std::chrono::current_zone(), now};
        std::string timenow = std::format("{:%Y-%m-%dT%H:%M:%OS%Z}", localnow);
        std::lock_guard<std::mutex> lock(mtx);
        std::printf("%s %s ", timenow.c_str(), label.c_str());
        va_list args;
        va_start(args, format);
        std::vprintf(format.data(), args);
        va_end(args);
        std::printf("\n");
}