#pragma once
#include <string>
#include <functional>
#include <thread>
#include <atomic>
#include <filesystem>
#include <unordered_map>
#include <chrono>

namespace fs = std::filesystem;

class FileMonitor {
public:
    using FileCallback = std::function<void(const std::string&, const std::string&)>;
    
    FileMonitor(const std::string& root_path, FileCallback callback);
    ~FileMonitor();
    
    void start();
    void stop();

private:
    void monitor_thread();
    void scan_directory(const fs::path& dir);
    std::string read_file_content(const fs::path& path);
    
    std::string root_path_;
    FileCallback callback_;
    std::thread monitor_thread_;
    std::atomic<bool> running_{false};
    std::unordered_map<std::string, fs::file_time_type> file_times_;
};