waybar/include/modules/network.hpp

#pragma once

#include <arpa/inet.h>
#include <fmt/format.h>
#include <ifaddrs.h>
#include <linux/nl80211.h>
#include <net/if.h>
#include <netlink/genl/ctrl.h>
#include <netlink/genl/genl.h>
#include <netlink/netlink.h>
#include <sys/epoll.h>
#include "ALabel.hpp"
#include "util/sleeper_thread.hpp"

namespace waybar::modules {

class Network : public ALabel {
 public:
  Network(const std::string&, const Json::Value&);
  ~Network();
  auto update() -> void;

 private:
  static const uint8_t MAX_RETRY = 5;
  static const uint8_t EPOLL_MAX = 200;

  static int handleEvents(struct nl_msg*, void*);
  static int handleScan(struct nl_msg*, void*);

  void worker();
  void createInfoSocket();
  void createEventSocket();
  int  getExternalInterface();
  void getInterfaceAddress();
  int  netlinkRequest(void*, uint32_t, uint32_t groups = 0);
  int  netlinkResponse(void*, uint32_t, uint32_t groups = 0);
  void parseEssid(struct nlattr**);
  void parseSignal(struct nlattr**);
  void parseFreq(struct nlattr**);
  bool associatedOrJoined(struct nlattr**);
  bool checkInterface(struct ifinfomsg *rtif, std::string name);
  int  getPreferredIface();
  auto getInfo() -> void;
  bool wildcardMatch(const std::string& pattern, const std::string& text);

  waybar::util::SleeperThread thread_;
  waybar::util::SleeperThread thread_timer_;
  int                         ifid_;
  int                         last_ext_iface_;
  sa_family_t                 family_;
  struct sockaddr_nl          nladdr_ = {0};
  struct nl_sock*             sock_ = nullptr;
  struct nl_sock*             ev_sock_ = nullptr;
  int                         efd_;
  int                         ev_fd_;
  int                         nl80211_id_;
  std::mutex                  mutex_;

  unsigned long long bandwidth_down_total_;
  unsigned long long bandwidth_up_total_;

  std::string essid_;
  std::string ifname_;
  std::string ipaddr_;
  std::string netmask_;
  int         cidr_;
  bool        linked_;
  int32_t     signal_strength_dbm_;
  uint8_t     signal_strength_;
  uint32_t    frequency_;
};

}  // namespace waybar::modules