mqtt-client.h

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#pragma once
 
#include <WiFi.h>
#include <Wire.h>
#include <PubSubClient.h>
#include <Arduino.h>
#include <vector>
 
void subscribe_callback(char* topic, byte* payload, unsigned int length);
 
namespace mqtt {
 
class MqttClient {
public:
    MqttClient(
        const char* topic,
        const char* mqtt_server,
        uint16_t mqtt_port,
        const char* wifi_ssid,
        const char* wifi_pwd,
        String dev_id,
        uint16_t buffer_size);
 
    void update();
 
    void publish(char* topic, char* msg, unsigned int plength);
 
    bool is_connected();
 
    String get_mac();
 
private:
    WiFiClient espClient;   
    PubSubClient client;    
    String dev_id;
    const char* topic;
 
    void reconnect();
 
    void setup_wifi(const char wifi_ssid[], const char wifi_pwd[]);
};
 
}  // namespace mqtt