#include <WiFi.h>
#include <HTTPClient.h>

// Variables de acceso a la RED
const char* ssid = "Wokwi-GUEST";
const char* password = "";

// URI para hacer peticiones
String serverName = "https://backendesp-c2ae18e5982d.herokuapp.com/dispositivos";

String payload;

// Variables del potenciometro
const int potPin = 32;
int potValue = 0;
int prevpotValue = -1;

// Variables del LED
const int ledPin = 26;
int ledState = LOW;
//int prevLedState = -1;

// Manejo de Tiempo
unsigned long lastUpdateTime = 0;
const unsigned long updateInterval = 5000;  // Intervalo de actualización en milisegundos (5 segundos)

void setup() {
  Serial.begin(115200);

  WiFi.begin(ssid, password);
  Serial.println("Connecting");
  while(WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.print("Connected to WiFi network with IP Address: ");
  Serial.println(WiFi.localIP());

  pinMode(potPin, INPUT);
  pinMode(ledPin, OUTPUT);

  Serial.println("Timer set to 5 seconds (timerDelay variable), it will take 5 seconds before publishing the first reading.");
}

void loop() {
  unsigned long currentMillis = millis();

  if (currentMillis - lastUpdateTime >= updateInterval) {
    potValue = analogRead(potPin);

    Serial.println(potValue);
    ledState = (ledState);
    //digitalWrite(ledPin, ledState);

    if (WiFi.status() == WL_CONNECTED) {
      HTTPClient http;

      // Definir las rutas del servidor para el LED y el potenciómetro
      String ledPath = serverName + "/1";
      String potPath = serverName + "/2";

      // Realizar solicitud HTTP para el LED
      http.begin(ledPath.c_str());
      //http.addHeader("accept", "application/json");
      //http.addHeader("Content-Type", "application/json");

      int httpResponseCode = http.GET();

      if (httpResponseCode > 0) {
        //String jsonBody = "{\"id\":\"1\",\"dispositivo\":\"led\",\"valor\":\"" + String(ledState) + "\"}";
        //Serial.println(jsonBody);
        //int httpResponseCode = http.PUT(jsonBody);

        //if (httpResponseCode > 0) {
        Serial.print("HTTP Response code (LED): ");
        Serial.println(httpResponseCode);

        String payload = http.getString();

        char valor = payload[36];

        if (valor == '1'){

          digitalWrite(26, HIGH);
        } else if (valor == '0'){

          digitalWrite(26, LOW);
        } else {

          digitalWrite(26, LOW);
        }

        //} else {
          //Serial.print("HTTP Error (LED): ");
          //Serial.println(httpResponseCode);
          //Serial.println(http.getString());
        //}

        //prevLedState = ledState;
      }

      http.end();  // Finalizar la conexión HTTP para el LED

      // Realizar solicitud HTTP para el potenciómetro
      http.begin(potPath.c_str());
      http.addHeader("accept", "application/json");
      http.addHeader("Content-Type", "application/json");

      if (potValue != prevpotValue) {
        String jsonBody = "{\"id\":\"2\",\"pot\":\"potenciometro\",\"led\":\"" + String(potValue) + "\"}";
        Serial.println(jsonBody);
        int httpResponseCode = http.PUT(jsonBody);

        if (httpResponseCode > 0) {
          Serial.print("HTTP Response code (Potenciómetro): ");
          Serial.println(httpResponseCode);
        } else {
          Serial.print("HTTP Error (Potenciómetro): ");
          Serial.println(httpResponseCode);
          Serial.println(http.getString());
        }

        prevpotValue = potValue;
      }

      http.end();  // Finalizar la conexión HTTP para el potenciómetro
    } else {
      Serial.println("WiFi Disconnected");
    }

    lastUpdateTime = currentMillis;
  }
}