#pragma once

#include <map>
#include <optional>
#include <string>

// Persistent best times, stored as a GKeyFile under the user config dir:
// ~/.config/minesweeper/leaderboard.ini  (gitignored)
class Leaderboard {
public:
    // Records a finished game. Returns true when it is a new best time
    // for the difficulty; the file is saved immediately.
    bool record(const std::string& difficulty, int seconds);

    // Best time in seconds for the difficulty, if one exists.
    std::optional<int> best_time(const std::string& difficulty) const;

private:
    void load();
    void save();

    std::map<std::string, int> times_;
    bool loaded_ = false;
};