/**
   ESP32 + DHT22 Example for Wokwi
   
   https://wokwi.com/arduino/projects/322410731508073042
*/
#include <WiFi.h>
#include "DHTesp.h"
#include "ThingSpeak.h"
#include <LiquidCrystal_I2C.h>

const int DHT_PIN = 13;


#define D1 25
#define D2 26
#define D3 27

const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";

const int ID = 2316248;
const char* myApiKeyw = "AKNHQ0VNFPIR6CZJ";
const char* myApiKeyr = "8TS2IDFF3DG77QVK";
const char* server = "api.thingspeak.com";

LiquidCrystal_I2C lcd(0x27, 16, 2);
DHTesp dhtSensor;
WiFiClient client;



//1,2 and 3 are ID fields. You don't need to change if you are following this tutorial. However, you can modify it according to your application
unsigned int resetonline = 4;
unsigned int led2 = 5;
unsigned int led3 = 6;
int erreur = 0;


void (*resetFunc)(void) = 0;


void setup() {
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);

  pinMode(D1, OUTPUT);
  pinMode(D2, OUTPUT);
  pinMode(D3, OUTPUT);
  digitalWrite(D1, 0);
  digitalWrite(D2, 0);
  digitalWrite(D3, 0);
  pinMode(15, OUTPUT);


  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED){
    delay(1000);
    Serial.println("Wifi not connected");
  }

  Serial.println("Wifi connected !");
  Serial.println("Local IP: " + String(WiFi.localIP()));

  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);

  lcd.init();
  lcd.backlight();

  lcd.setCursor(2,0);
  lcd.print("Hello ThingSpeak");
  lcd.setCursor(0,1);
  lcd.print("ST Meteo");

  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
}

void loop() {

  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  if(data.temperature<-10 || data.temperature>80){

    erreur  = 555; 
    Serial.println(erreur);
    }

  else{
    erreur = 0;
  }
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("---");

  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Temp: " + String(data.temperature, 2) + " C");
  lcd.setCursor(0,1);
  lcd.print("Humidity: " + String(data.humidity, 1) + "%");
  delay(2000);

  
  //TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  ThingSpeak.setField(1,data.temperature);
  ThingSpeak.setField(2,data.humidity);
  ThingSpeak.setField(7,erreur);

  if (data.temperature > 35 || data.temperature < 12 || data.humidity > 70 || data.humidity < 40) {
    digitalWrite(15, HIGH);
  }else{
    digitalWrite(15, LOW);
  }
  
  int x = ThingSpeak.writeFields(ID,myApiKeyw);
  
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 3) + "%");
  
  if(x == 200){
    Serial.println("Data pushed successfull");
  }else{
    Serial.println("Push error" + String(x));
  }

  delay(2000);
  
   //get the last data of the fields
  int reset_online = ThingSpeak.readFloatField(ID, resetonline);
  int led_2 = ThingSpeak.readFloatField(ID, led2);
  int led_3 = ThingSpeak.readFloatField(ID, led3);
 
  if(reset_online == 1){
    digitalWrite(D1, 1);
    Serial.println("D1 is On..!");
  }
  else if(reset_online == 0){
    digitalWrite(D1, 0);
    Serial.println("D1 is Off..!");
    delay((500));
    resetFunc();
  }
 
  if(led_2 == 1){
    digitalWrite(D2, 1);
    Serial.println("D2 is On..!");
  }
  else if(led_2 == 0){
    digitalWrite(D2, 0);
    Serial.println("D2 is Off..!");
  }
 
  if(led_3 == 1){
    digitalWrite(D3, 1);
    Serial.println("D3 is On..!");
  }
  else if(led_3 == 0){
    digitalWrite(D3, 0);
    Serial.println("D3 is Off..!");
  }

  Serial.println("---");

  Serial.println(reset_online);
  Serial.println(led_2);
  Serial.println(led_3);

  Serial.println("---");

  delay(10000);
}