engine/include/logger.h

#pragma once

#include <filesystem>
#include <memory>

#include "log.h"

#include <spdlog/sinks/basic_file_sink.h>
#include <spdlog/sinks/stdout_color_sinks.h>

namespace engine {

// To be executed in the target application, NOT engine.dll
void SetupLog(const char* appName)
{
    const std::string LOG_FILENAME{std::string(appName) + ".log"};

#ifdef NDEBUG
    // RELEASE
    const std::filesystem::path log_path{std::filesystem::temp_directory_path() / LOG_FILENAME};
#else
    // DEBUG
    const std::filesystem::path log_path{LOG_FILENAME};
#endif

    std::vector<spdlog::sink_ptr> sinks;

    sinks.emplace_back(std::make_shared<spdlog::sinks::basic_file_sink_mt>(log_path.string(), true));
    sinks.back()->set_pattern("[%Y-%m-%d %H:%M:%S.%e] [%l] %v");

    sinks.emplace_back(std::make_shared<spdlog::sinks::stdout_color_sink_mt>());
    sinks.back()->set_pattern("[%H:%M:%S.%e] [%l] %v");

    auto logger = std::make_shared<spdlog::logger>(appName, sinks.begin(), sinks.end());

    // Logs below INFO are ignored through macros in release (see log.hpp)
    logger->set_level(spdlog::level::trace);

    spdlog::register_logger(logger);
    spdlog::set_default_logger(logger);
    spdlog::flush_every(std::chrono::seconds(60));

    LOG_INFO("Created log with path: {}", log_path.string());
}

} // namespace engine