// SPDX-FileCopyrightText: Matteo Settenvini <matteo.settenvini@montecristosoftware.eu>
// SPDX-License-Identifier: GPL-3.0-or-later

#pragma once

#include <memory>
#include <shared_mutex>
#include <string_view>

namespace malcontent {

class Logger {
    friend std::unique_ptr<Logger> std::make_unique<Logger>();
    friend std::default_delete<Logger>;

public:
    static auto debug(const std::string_view& msg) -> void;
    static auto info(const std::string_view& msg) -> void;
    static auto warn(const std::string_view& msg) -> void;
    static auto error(const std::string_view& msg) -> void;

private:
    Logger();
    Logger(const Logger&) = delete;
    Logger(Logger&&) = delete;
    ~Logger() noexcept;

    auto operator=(const Logger&) = delete;
    auto operator=(Logger&&) = delete;

    auto log(int priority, std::string_view msg) -> void;

    int _max_log_priority;

    static auto instance() -> Logger&;

    static std::unique_ptr<Logger> _instance;
    static std::shared_mutex _instance_mtx;
};

} // ~ namespace malcontent