wifi_watchdog.h

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#ifndef SENSESP_SRC_SENSESP_SYSTEM_WIFI_WATCHDOG_H_
#define SENSESP_SRC_SENSESP_SYSTEM_WIFI_WATCHDOG_H_
 
#include <ReactESP.h>
 
#include <memory>
 
#include "sensesp/net/network_state.h"
#include "sensesp/system/saveable.h"
#include "sensesp/system/valueproducer.h"
#include "sensesp/system/wifi_watchdog_policy.h"
 
namespace sensesp {
 
class WiFiWatchdog : public FileSystemSaveable {
 public:
  // Bound well inside what 32-bit millisecond arithmetic can hold.
  static constexpr int kMaxTimeoutS = 7 * 24 * 3600;
 
  static bool is_valid_timeout_s(int timeout_s) {
    return timeout_s >= 1 && timeout_s <= kMaxTimeoutS;
  }
 
  WiFiWatchdog(std::shared_ptr<ValueProducer<NetworkState>> network_state,
               int timeout_s,
               const String& config_path = "/System/WiFi Watchdog");
  virtual ~WiFiWatchdog();
 
  virtual bool to_json(JsonObject& root) override;
  virtual bool from_json(const JsonObject& config) override;
 
 protected:
  void on_network_state(NetworkState state);
  void poll();
  uint32_t timeout_ms() const {
    return static_cast<uint32_t>(timeout_s_) * 1000;
  }
 
  int timeout_s_;
  std::shared_ptr<ValueProducer<NetworkState>> network_state_;
  int state_observer_id_ = -1;
  reactesp::RepeatEvent* poll_event_ = nullptr;
  reactesp::DelayEvent* restart_event_ = nullptr;
  WiFiWatchdogPolicy policy_;
};
 
const String ConfigSchema(const WiFiWatchdog& obj);
 
}  // namespace sensesp
 
#endif  // SENSESP_SRC_SENSESP_SYSTEM_WIFI_WATCHDOG_H_