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

// Update these with values suitable for your network.

const char* ssid = "Mile Panika 2";
const char* password = "Radioemfdetektor55";
const char* mqtt_server = "192.168.1.37";

WiFiClient espClient;
PubSubClient client(espClient);
long lastMsg = 0;
long lastMsg2 = 0;
char msg[50];


void setup_wifi() {

  delay(10);
  // We start by connecting to a WiFi network
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  randomSeed(micros());

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}

void callback(char* topic, byte* message, unsigned int length) {
 Serial.print("Message arrived on topic: ");
  Serial.print(topic);
  Serial.print(". Message: ");
  String messageTemp;

  for (int i = 0; i < length; i++) {
    Serial.print((char)message[i]);
    messageTemp += (char)message[i];
  }
  Serial.println();

  if (String(topic) == "Mjolnir001/D0") {
      if(messageTemp =="1"){
        digitalWrite(D0, HIGH);
      client.publish("Mjolnir001/status/D0","HIGH");

      }
      else if(messageTemp == "0"){
        digitalWrite(D0, LOW);
      client.publish("Mjolnir001/status/D0","LOW");

      }
  }
  if (String(topic) == "Mjolnir001/D1") {
      if(messageTemp =="1"){
        digitalWrite(D1, HIGH);
      client.publish("Mjolnir001/status/D1","HIGH");

      }
      else if(messageTemp == "0"){
        digitalWrite(D1, LOW);
      client.publish("Mjolnir001/status/D1","LOW");

      }

  }
  if (String(topic) == "Mjolnir001/D2") {
      if(messageTemp =="1"){
        digitalWrite(D2, HIGH);
      client.publish("Mjolnir001/status/D2","HIGH");

      }
      else if(messageTemp == "0"){
        digitalWrite(D2, LOW);
      client.publish("Mjolnir001/status/D2","LOW");

      }

      }
  if (String(topic) == "Mjolnir001/D3") {
      if(messageTemp =="1"){
        digitalWrite(D3, HIGH);
      client.publish("Mjolnir001/status/D3","HIGH");

      }
      else if(messageTemp == "0"){
        digitalWrite(D3, LOW);
      client.publish("Mjolnir001/status/D3","LOW");

      }

  }
  if (String(topic) == "Mjolnir001/D4") {
      if(messageTemp =="1"){
        digitalWrite(D4, HIGH);
      client.publish("Mjolnir001/status/D4","HIGH");

      }
      else if(messageTemp == "0"){
        digitalWrite(D4, LOW);
      client.publish("Mjolnir001/status/D4","LOW");

      }

  }
  if (String(topic) == "Mjolnir001/D5") {
      if(messageTemp =="1"){
        digitalWrite(D5, HIGH);
      client.publish("Mjolnir001/status/D5","HIGH");

      }
      else if(messageTemp == "0"){
        digitalWrite(D5, LOW);
      client.publish("Mjolnir001/status/D5","LOW");

      }

  }
  if (String(topic) == "Mjolnir001/D6") {
      if(messageTemp =="1"){
        digitalWrite(D6, HIGH);
      client.publish("Mjolnir001/status/D6","HIGH");

      }
      else if(messageTemp == "0"){
        digitalWrite(D6, LOW);
      client.publish("Mjolnir001/status/D6","LOW");

      }

  }
  if (String(topic) == "Mjolnir001/D7") {
      if(messageTemp =="1"){
        digitalWrite(D7, HIGH);
      client.publish("Mjolnir001/status/D7","HIGH");

      }
      else if(messageTemp == "0"){
        digitalWrite(D7, LOW);
      client.publish("Mjolnir001/status/D7","LOW");

      }

  }
  if (String(topic) == "Mjolnir001/D8") {
      if(messageTemp =="1"){
        digitalWrite(D8, HIGH);
      client.publish("Mjolnir001/status/D8","HIGH");

      }
      else if(messageTemp == "0"){
        digitalWrite(D8, LOW);
      client.publish("Mjolnir001/status/D8","LOW");

      }

  }
  if (String(topic) == "Mjolnir001/TX") {
      if(messageTemp =="1"){
        digitalWrite(TX, HIGH);
      client.publish("Mjolnir001/status/TX","HIGH");

      }
      else if(messageTemp == "0"){
        digitalWrite(TX, LOW);
      client.publish("Mjolnir001/status/TX","LOW");

      }

  }
  if (String(topic) == "Mjolnir001/RX") {
      if(messageTemp =="1"){
        digitalWrite(RX, HIGH);
      client.publish("Mjolnir001/status/RX","HIGH");

      }
      else if(messageTemp == "0"){
        digitalWrite(RX, LOW);
      client.publish("Mjolnir001/status/RX","LOW");

      }

  }

}
void reconnect() {
  // Loop until we're reconnected
  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
    // Create a random client ID
    String clientId = "ESP8266Client-";
    clientId += String(random(0xffff), HEX);
    // Attempt to connect
    if (client.connect(clientId.c_str())) {
      Serial.println("connected");
       digitalWrite(BUILTIN_LED, LOW);
      client.subscribe("#"); //  YourEmailId/Light // in my case email id is "satyasankar.09@gmail.com/Light" --> This is my topic Name
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      // Wait 5 seconds before retrying
      delay(5000);
    }
  }
}

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);     // on board led for mqtt status indication.
  pinMode(D0, OUTPUT);
  pinMode(D1, OUTPUT);
  pinMode(D2, OUTPUT);
  pinMode(D3, OUTPUT);
  pinMode(D4, OUTPUT);
  pinMode(D5, OUTPUT);
  pinMode(D6, OUTPUT);
  pinMode(D7, OUTPUT);
  pinMode(D8, OUTPUT);
  pinMode(RX, OUTPUT);
  pinMode(TX, OUTPUT);

  Serial.begin(115200);
  setup_wifi();
  client.setServer(mqtt_server, 1883);
  client.setCallback(callback);

}

void loop() {

  if (!client.connected()) {
     digitalWrite(BUILTIN_LED, HIGH);
    reconnect();
  }
  client.loop();

  long now=millis();
  long now2=millis();


}