#include <ESP8266WiFi.h>
#include <PubSubClient.h>

//-------Wifi infos ---------
const char* ssid = "<ssid>";
const char* password =  "<pw>";
const int wifiRetryInterval = 500;


//-------MQTT infos ---------
char* clientId = "Wassermelder1";
const char* mqttServerIp = "<mqtt_server_ip>";
const int mqttServerPort = 1883;
const char* mqttUser = "<mqtt user>";
const char* mqttPassword = "<mqtt pw>";
const int mqttRetryInterval = 2000;
const char* topicWassermelder = "esp/wassermelder1";
WiFiClient espClient;
PubSubClient mqttClient(espClient);


void setup() {
  
  initWifi();
  initMQTT();

  delay(1000);
}

void loop() {
  if (!mqttClient.connected()) {
    initMQTT();
  }
  
  mqttClient.publish(topicWassermelder, "true");
  delay(3000);

  // ESP in den DeepSleep-Modus setzen
  ESP.deepSleep(0);
  delay(100);
}

void initWifi(){
  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(wifiRetryInterval);
  }
}

void initMQTT(){
  mqttClient.setServer(mqttServerIp, mqttServerPort);
 
  while (!mqttClient.connected()) {
 
    if (mqttClient.connect(clientId, mqttUser, mqttPassword )) {
 
    } else {
      delay(mqttRetryInterval);
    }
  }
}