// ============ Include Library ===================
#include <WiFi.h>
#include <WiFiClientSecure.h>
#include "DHTesp.h"
#include <PubSubClient.h>
#include <Arduino_JSON.h>
// ============ End Include Library ===================
// ============ Define Pin ===================
#define LED_RED 13
#define LED_GREEN 12
#define LED_BLUE 14
#define DHT_PIN 18
#define BUZZER_PIN 4
// ============ End Define Pin ==============
// ============ Variabel ===================
const char ssid[] = "Wokwi-GUEST";
const char pass[] = "";
// ============ MQTT ===============
const char *mqttServer = "ze3c7493.ala.asia-southeast1.emqxsl.com";
const char *topic = "iot-6/temperature";
const char *topic_temperature = "iot-6/temperature";
const char *topic_lamp = "iot-6/lamp";
const char *mqtt_username = "mentoring12";
const char *mqtt_password = "arkatama";
int port = 8883;
// ============ End MQTT ===============
float temperature, humadity;
float celcius, fahrenheit, kelvin;
unsigned long lastTime = 0;
unsigned long intervalTime = 1000;

static const char *root_ca PROGMEM = R"EOF(
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
)EOF";

// ============ End Variabel ===================
// ============ Class ===================
DHTesp dht;
WiFiClientSecure espClient;
PubSubClient client(espClient);
// ============ End Class ===================
// ============ Function ===================
void wifi_init();
void mqtt_init();
void led_init();
void led_action(int color);
void dht_init();
void dht_read();
void convert_temperature();
void send_data();
void process_data();
// ============ End Function ===================
void setup() {
  Serial.begin(115200);
  wifi_init();
  mqtt_init();
  dht_init();
  led_init();
}

void loop() {
  client.loop();
 if (!client.connected()) {
    mqtt_init();
  }
  send_data();
}
void wifi_init() {
  Serial.print("Connecting to WiFi");
  WiFi.begin(ssid, pass, 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.print(".");
  }
  Serial.println(" Connected!");
}
void mqtt_init() {
  espClient.setCACert(root_ca);
  client.setServer(mqttServer, port);
  client.setCallback(callback);
  while (!client.connected()) {
    String client_id = "bayu-iot-1";
    client_id += String(WiFi.macAddress());
    Serial.printf("The client %s connects to the public MQTT broker\n", client_id.c_str());
    if (client.connect(client_id.c_str(), mqtt_username, mqtt_password)) {
      Serial.println("Public EMQX MQTT broker connected");
      client.subscribe(topic_lamp);
    } else {
      Serial.print("failed with state ");
      Serial.print(client.state());
      delay(2000);
    }
  }
}
void callback(char *topic, byte *payload, unsigned int length) {
   String sMsg;
  Serial.print("Message arrived in topic: ");
  Serial.println(topic);
  Serial.print("Message:");
  for (int i = 0; i < length; i++) {
    Serial.print((char) payload[i]);
     sMsg += (char) payload[i];
  }
  JSONVar objMsg = JSON.parse(sMsg);
  process_data(objMsg);
  Serial.println();
  Serial.println("-----------------------");
}
void dht_init() {
  dht.setup(DHT_PIN, DHTesp::DHT22);
}
void dht_read() {
  TempAndHumidity  data = dht.getTempAndHumidity();
  temperature = data.temperature;
  humadity = data.humidity;
  Serial.println("Temperature: ");
  Serial.println(temperature);
}
void convert_temperature() {
  celcius = temperature;
  fahrenheit = (9 / 5 * celcius) + 32;
  kelvin = celcius + 273.15;
}
void led_init() {
  pinMode(LED_RED, OUTPUT);
  pinMode(LED_GREEN, OUTPUT);
  pinMode(LED_BLUE, OUTPUT);
}
void send_data() {
  if ((millis() - lastTime) > intervalTime) {
    if (!client.connected()) {
      mqtt_init();
    }
    dht_read();
    JSONVar dataObject;
    dataObject["nilai"] = temperature;

    String sData = JSON.stringify(dataObject);

    client.publish(topic_temperature, sData.c_str());

    lastTime = millis();
  }
}
void led_action(int color) {
  switch (color) {
    case 1:
      digitalWrite(LED_RED, LOW);
      digitalWrite(LED_GREEN, HIGH);
      digitalWrite(LED_BLUE, HIGH);
      break;
    case 2:
      digitalWrite(LED_RED, LOW);
      digitalWrite(LED_GREEN, LOW);
      digitalWrite(LED_BLUE, HIGH);
      break;
    case 3:
      digitalWrite(LED_RED, HIGH);
      digitalWrite(LED_GREEN, LOW);
      digitalWrite(LED_BLUE, HIGH);
      break;
    default:
      digitalWrite(LED_RED, HIGH);
      digitalWrite(LED_GREEN, HIGH);
      digitalWrite(LED_BLUE, HIGH);
  }
}
void process_data(JSONVar jsonObject){
  if (JSON.typeof(jsonObject) == "undefine") {
    Serial.println("Gagal mendapatkan data karena type undefine");
    return;
  }
  Serial.println("jsonObject :");
  Serial.println(jsonObject);
  if (jsonObject.hasOwnProperty("value")) {
    int Value = jsonObject["value"];
    Serial.println("value :");
    Serial.println(Value);


    if(Value == 1){
      led_action(1);
    }else{
      led_action(4);
    }
  }
}