#ifndef GWATCH_TRACER_HPP
#define GWATCH_TRACER_HPP

#include <cstdint>
#include <optional>
#include <string>
#include <vector>

class Tracer {
public:
  int watch_variable(const std::string &var_name, const std::string &exec_path,
                     uint64_t address, size_t size,
                     const std::vector<std::string> &args = {});

private:
  void setup_hardware_watchpoint(pid_t pid, uint64_t address, size_t size);
  void handle_watchpoint_hit(pid_t pid, uint64_t address, size_t size);
  uint64_t get_load_address(pid_t pid, const std::string &exec_path);
  int64_t read_memory_value(pid_t pid, uint64_t address, size_t size);

  std::string var_name_;
  std::optional<int64_t> prev_value_;
};

#endif