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

HTTPClient client;

char nomeWifi[] = "Wokwi-GUEST";
char senhaWifi[] = "";
char serverAddress[] = "https://api.tago.io/data";
char contentHeader[] = "application/json";
char tokenHeader[] = "7f7a07e4-a019-48d7-adf2-641cef4985ba";

int const PINO_SGAS = 33;
int LED_VERDE = 5;
int LED_AMARELO = 17;
int LED_VERMELHO = 32;
int valor = 0;

void setup() {
  pinMode(LED_VERDE, OUTPUT);
  pinMode(LED_AMARELO, OUTPUT);
  pinMode(LED_VERMELHO, OUTPUT);
  pinMode(PINO_SGAS, INPUT);
  Serial.begin(9600);
  init_wifi();
}

void loop() {
  valor = analogRead(PINO_SGAS);
  send_valor();
  delay(250);
  valor = map(valor, 0, 4095, 0, 1000);

  if (valor > 0 && valor <= 370) {
    digitalWrite(LED_VERDE, HIGH);
    digitalWrite(LED_AMARELO, LOW);
    digitalWrite(LED_VERMELHO, LOW);
  } else if (valor > 370 && valor <= 696) {
    digitalWrite(LED_VERDE, LOW);
    digitalWrite(LED_AMARELO, HIGH);
    digitalWrite(LED_VERMELHO, LOW);
  } else if (valor > 696) {
    digitalWrite(LED_VERDE, LOW);
    digitalWrite(LED_AMARELO, LOW);
    digitalWrite(LED_VERMELHO, HIGH);
  }
}

void init_wifi() {
  Serial.println("Conectando WiFi");
  Serial.print("Wifi: ");
  Serial.println(nomeWifi);
  WiFi.begin(nomeWifi, senhaWifi);
  while (WiFi.status() != WL_CONNECTED) {
    Serial.print(".");
  }
  Serial.println("WiFi Conectado");
  Serial.print("Meu IP eh: ");
  Serial.println(WiFi.localIP());
}

void send_valor() {
  char anyData[30];
  char postData[300];
  char anyData1[30];
  char bAny[30];
  int statusCode = 0;

  strcpy(postData, "{\n\t\"variable\": \"valor\",\n\t\"value\": ");
  dtostrf(valor, 6, 2, anyData);
  strncat(postData, anyData, 100);
  strcpy(anyData1, ",\n\t\"unit\": \"C\"\n\t}\n");
  strncat(postData, anyData1, 100);
  Serial.println(postData);
  client.begin(serverAddress);
  client.addHeader("Content-Type", contentHeader);
  client.addHeader("Device-Token", tokenHeader);
  statusCode = client.POST(postData);
  delay(2000);

  Serial.print("Status code: ");
  Serial.println(statusCode);
  Serial.println("End of POST to TagoIO");
  Serial.println();
}