/*
  https://wokwi.com/projects/365379406933156865
*/

#include "DHTesp.h"
#include <Servo.h>
#include <LiquidCrystal_I2C.h>

const int DHT_PIN = 15; 
const int PIR = 13;
const int svOne = 2;
const int svTwo = 4;
const int svThree = 5;
const int svFour = 18;
int pos = 0; // test for servo
int pirState; 
int display = 2;

DHTesp dhtSensor;
Servo servOne;
Servo servTwo;
Servo servThree;
Servo servFour;

bool pressButton = false;
bool pressButtonA = false;
bool pressButtonB = false;
bool pressButtonC = false;

const float GAMMA = 0.7;
const float RL10 = 50;
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  Serial.begin(115200);
  pinMode(PIR, INPUT);

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

  servOne.attach(svOne);
  servTwo.attach(svTwo);
  servThree.attach(svThree);
  servFour.attach(svFour);

  lcd.init();
  lcd.backlight();
  servOne.write(0); 
  servTwo.write(0);
  servThree.write(0);
  servFour.write(0);
}
// red 25; 26; 27; 14;


void loop() {
  servOne.write(0); 
  servTwo.write(0);
  servThree.write(0);
  servFour.write(0);
  delay(50);
  bool stateButton = digitalRead(25);
  pirState = digitalRead(PIR);
  int analogValue = analogRead(12);
  float voltage = analogValue / 1024. * 5;
  float resistance = 2000 * voltage / (1 - voltage / 5);
  float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));
  


  lcd.setCursor(0,0); // first column and row
  if ((lux > 50) && (display == 2)){
    lcd.clear();
    lcd.print("Tomorrow");
    display = 1;
  } 
  if ((lux <= 50) && (display == 1)){
    lcd.clear();
    lcd.setCursor(0,1);
    lcd.print("Yesterday");
    display = 2;
  }

  if (pirState == HIGH ) {
    Serial.println("Motion detected");
  } else {
    Serial.println("No motion detected");
  }

  TempAndHumidity data = dhtSensor.getTempAndHumidity();
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("---");
  delay(50);


  if (stateButton == HIGH && !pressButton){
    servOne.write(90);
    delay(500);
    pressButton = true;
  }
  if (stateButton == LOW) {
    pressButton = false;
  }
  if (digitalRead(26) == HIGH && !pressButtonA){
    servTwo.write(180);
    delay(500);
    pressButtonA = true;
  }
  if (digitalRead(26) == LOW){
    pressButtonA = false;
  }
  if (digitalRead(27) == HIGH && !pressButtonB){
    servThree.write(180);
    delay(500);
    pressButtonB = true;
  }
  if (digitalRead(27) == LOW){
    pressButtonB = false;
  }
  if (digitalRead(14) == HIGH && !pressButtonC){
    servFour.write(180);
    delay(500);
    pressButtonC = true;
  }
  if (digitalRead(14) == LOW){
    pressButtonC = false;
  }
}