Files
ETcontroller_PRO/src/mqtt.h
Emanuele Trabattoni 146a2b558b Improved reconnection
2025-07-22 11:15:36 +02:00

76 lines
2.0 KiB
C++

#pragma once
#define DEBUGLOG_DEFAULT_LOG_LEVEL_DEBUG
#include <DebugLog.h>
#include <Arduino.h>
#include <ArduinoJson.h>
#include <Network.h>
#include <PubSubClient.h>
#include <config.h>
#include <mutex>
#include <functional>
typedef std::string topic_t;
typedef std::function<void(const ArduinoJson::JsonDocument &)> action_t; // the actions receive a JsonObject containing the received message
typedef std::map<topic_t, action_t> action_map_t;
class MQTTwrapper
{
private:
const std::map<int, std::string> stateMap = {
{-4, "MQTT_CONNECTION_TIMEOUT"},
{-3, "MQTT_CONNECTION_LOST"},
{-2, "MQTT_CONNECT_FAILED"},
{-1, "MQTT_DISCONNECTED"},
{0, "MQTT_CONNECTED"},
{1, "MQTT_CONNECT_BAD_PROTOCOL"},
{2, "MQTT_CONNECT_BAD_CLIENT_ID"},
{3, "MQTT_CONNECT_UNAVAILABLE"},
{4, "MQTT_CONNECT_BAD_CREDENTIALS"},
{5, "MQTT_CONNECT_UNAUTHORIZED"}
};
private:
static MQTTwrapper *
getInstance(MQTTwrapper *inst = nullptr)
{
static std::unique_ptr<MQTTwrapper> m_instance;
if (inst)
m_instance.reset(inst);
if (m_instance)
return m_instance.get();
return nullptr;
}
public:
MQTTwrapper();
~MQTTwrapper();
const bool connect();
const bool disconnect();
const bool connected();
const bool subscribe(topic_t topic, action_t action);
const bool unsubscribe(topic_t topic);
const bool publish(topic_t topic, const ArduinoJson::JsonDocument obj);
private:
static void callback(char *topic, uint8_t *payload, unsigned int length); // C-style callback only to invoke onMessage
void onMessage(const std::string topic, const std::string message);
// infinite loop to call the client loop method in a taskHandle
static void clientLoop(void *params);
private:
const Config &m_config;
action_map_t m_actionMap;
NetworkClient m_tcp;
PubSubClient m_client;
TaskHandle_t m_loopHandle;
};