#include <ESP32Servo.h>
#include "DHTesp.h"
#include "DHT.h"
#include <WiFi.h>
#include "ThingSpeak.h"
const int DHT_PIN = 12;
const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASS = "";
//thingspeak details
const int myChannelNumber = 2545327;
const char* write_API_Key = "OYCU4PU03FPZ1M1D";
const char* server = "api.thingspeak.com";
float humidity;
float temp;
//int detectCO2;
//DHT22 details
#define DHTTYPE DHT22   
DHT dht(DHT_PIN, DHTTYPE);
WiFiClient client;
Servo servo;

int bleu = 33;
int green = 26;
int red = 14;

int dhtPin = 12;

int ldrPin = 2;

int co2Pin = 13;

int maxCO2_ = 1500;

int ledONE = 19;
int ledTWO = 18;
int ledTHREE = 5;
int ledFOUR = 17;

int seuilChauf = 15;
int seuilClima = 34;


//10K lux
int bright = 156;
//400lux
int light = 1100;
//10lux
int dark = 3431;

void colorRGB(int re_d , int gree_n , int ble_u)
{
  analogWrite(red, re_d);
  analogWrite(green, gree_n);
  analogWrite(bleu, ble_u);
  delay(4000);
}


void open(int p){
  servo.write(p);
  //delay(250);
}
void close(){
  servo.write(0);
  delay(250);
}
DHTesp dhtCaptur;
void setup() {
  dht.begin();
  WiFi.begin(WIFI_NAME, WIFI_PASS);
  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);
  servo.attach(23);
  dhtCaptur.setup(dhtPin, DHTesp::DHT22);
  pinMode(bleu, OUTPUT);
  pinMode(green, OUTPUT);
  pinMode(red, OUTPUT);
  pinMode(ldrPin, INPUT);
  pinMode(ledONE, OUTPUT);
  pinMode(ledTWO, OUTPUT);
  pinMode(ledTHREE, OUTPUT);
  pinMode(ledFOUR, OUTPUT);
  Serial.begin(115200);
  
  Serial.println("Hello, ESP32!");
}
void sendDataToThingSpeak(){
  ThingSpeak.setField(1,temp);
    delay(500);
  ThingSpeak.setField(2,humidity);
  //ThingSpeak.setField(3,detectCO2);
  
}
void loop() {
  int detectCO2 = map(analogRead(co2Pin), 0, 4095, 0, maxCO2_);
  int ld_r = analogRead(ldrPin);
  TempAndHumidity  data = dhtCaptur.getTempAndHumidity();
  float temp = data.temperature;
  float humidity = data.humidity;
  Serial.println("ldr:");
  Serial.println(ld_r);
  Serial.println("temp:");
  Serial.println(temp);
  Serial.println("humidity:");
  Serial.println(humidity);
  Serial.println("CO2:");
  Serial.println(detectCO2);
  humidity = dht.readHumidity();
   temp = dht.readTemperature();  
  if (isnan(humidity) || isnan(temp)  ){
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
    
  }

  if(detectCO2 > 1000 || temp > 25 || humidity > 70) open(90);
  else if(detectCO2 > 700 && detectCO2<1000) open(30);
  else close();

  if(temp < seuilChauf) colorRGB(255, 0, 0);
  else if(temp > seuilClima) colorRGB(0, 0, 255);
  else colorRGB(0, 0, 0);

  if(ld_r >= dark){
    digitalWrite(ledONE, HIGH);
    digitalWrite(ledTWO, LOW);
    digitalWrite(ledTHREE, LOW);
    digitalWrite(ledFOUR, LOW);
  }
  else if(ld_r < dark && ld_r > light)
  {
    digitalWrite(ledONE, HIGH);
    digitalWrite(ledTWO, HIGH);
    digitalWrite(ledTHREE, LOW);
    digitalWrite(ledFOUR, LOW);
  }
  else if(ld_r <= light && ld_r > bright)
  {
    digitalWrite(ledONE, HIGH);
    digitalWrite(ledTWO, HIGH);
    digitalWrite(ledTHREE, HIGH);
    digitalWrite(ledFOUR, LOW);
  }
  else if(ld_r <= bright)
  {
    digitalWrite(ledONE, HIGH);
    digitalWrite(ledTWO, HIGH);
    digitalWrite(ledTHREE, HIGH);
    digitalWrite(ledFOUR, HIGH);
  }
 int writeResult = ThingSpeak.writeFields(myChannelNumber,write_API_Key);
  
  Serial.println("Temp: " + String(temp, 1) + "°C");
  Serial.println("Humidity: " + String(humidity, 2) + "%");
  //Serial.println("CO2 : " + String(detectCO2, 3) + "ppm");
  
  if(writeResult == 200){
    Serial.println("Data pushed successfull");
  }else{
    Serial.println("Push error" + String(writeResult));
  }
  Serial.println("---");
  sendDataToThingSpeak();

  delay(16000);
}