#include "DHT.h"
#include <ESP32Servo.h>

// Déclaration des constantes pour les seuils de luminosité
const int DARK = 200;
const int LIGHT = 500;
const int BRIGHT = 800;
const int VERY_BRIGHT = 1000;

// Déclaration des broches pour les composants
#define PIN_RED    12
#define PIN_GREEN  14
#define PIN_BLUE   27
#define digital_In 34
#define analog_In 35
#define POT_PIN 33
#define SERVO_PIN 22
#define DHT_PIN 13

//Seuil CO2 (Scenario 1)
const int UNDER_7500 = 45;
const int UNDER_10000 = 90;
const int UNDER_15000 = 135;

//Seuil temperature (Scenario 2)
const int SEUIL_TEMP = 23;

// Déclaration des objets
DHT dht(DHT_PIN, DHT22);
Servo servo;

// Déclaration du tableau de broches LED
const int ledCount = 10;
int ledPins[] = {23, 22, 21, 19, 18, 5, 17, 16, 4, 2};

// Variable pour l'angle du servo
int CURRENT_ANGLE = 0;

void luminosite() {
  int analogValue = analogRead(analog_In);
  float voltage = analogValue / 4096.0 * 5.0;
  float resistance = 2000.0 * voltage / (1.0 - voltage / 5.0);
  float lux_a = pow(50.0 * 1000.0 * pow(10.0, 0.7) / resistance, 1.0 / 0.7);
  Serial.print("Analog: Lux ");
  Serial.println(lux_a);

  // Allumer les LED en fonction de la luminosité
  if (lux_a <= DARK) {
    Serial.println("Dark");
    for (int i = 0; i < 4; i++) {
      digitalWrite(ledPins[0], HIGH);
      digitalWrite(ledPins[1], LOW);
      digitalWrite(ledPins[2], LOW);
      digitalWrite(ledPins[3], LOW);
    }
  } else if (lux_a <= LIGHT) {
    Serial.println("Light");
    for (int i = 0; i < 4; i++) {
      digitalWrite(ledPins[0], HIGH);
      digitalWrite(ledPins[1], HIGH);
      digitalWrite(ledPins[2], LOW);
      digitalWrite(ledPins[3], LOW);
    }
  } else if (lux_a <= BRIGHT) {
    Serial.println("Bright");
    for (int i = 0; i < 4; i++) {
      digitalWrite(ledPins[0], HIGH);
      digitalWrite(ledPins[1], HIGH);
      digitalWrite(ledPins[2], HIGH);
      digitalWrite(ledPins[3], LOW);
    }
  } else {
    Serial.println("Very Bright");
    for (int i = 0; i < 4; i++) {
      digitalWrite(ledPins[0], HIGH);
      digitalWrite(ledPins[1], HIGH);
      digitalWrite(ledPins[2], HIGH);
      digitalWrite(ledPins[3], HIGH);
    }
  }
  delay(3000);
}

void fenetre() {
  int potValue = analogRead(POT_PIN);
  potValue = map(potValue, 0, 4095, 0, 17000);
  int angle = 0;
  if (potValue < 400) {
    angle = 0;
    Serial.println("CO2 concentration below 400ppm, close window");
  } else if (potValue < 7500) {
    angle = UNDER_7500;
    Serial.print("CO2 concentration below 7500ppm, open window by ");
    Serial.println(UNDER_7500);
  } else if (potValue < 10000) {
    angle = UNDER_10000;
    Serial.print("CO2 concentration below 10000ppm, open window by ");
    Serial.println(UNDER_10000);
  } else if (potValue < 15000) {
    angle = UNDER_15000;
    Serial.print("CO2 concentration below 15000ppm, open window by ");
    Serial.println(UNDER_15000);
  } else {
    Serial.println("CO2 concentration over 15000ppm, open window fully");
    angle = 180;
  }

  int difference = CURRENT_ANGLE - angle;
  if (difference < 0) {
    ouvrirServo(abs(difference));
  } else {
    fermerServo(difference);
  }
  CURRENT_ANGLE = angle;
}

void ouvrirServo(int angle) {
  for (int i = 0; i <= angle; i++) {
    servo.write(CURRENT_ANGLE + i);
    delay(15);
  }
}

void fermerServo(int angle) {
  for (int i = 0; i <= angle; i++) {
    servo.write(CURRENT_ANGLE - i);
    delay(15);
  }
}

void setup() {
  Serial.begin(9600);
  dht.begin();
  servo.attach(SERVO_PIN);
  servo.write(0);
  pinMode(POT_PIN, INPUT);
  pinMode(PIN_RED, OUTPUT);
  pinMode(PIN_GREEN, OUTPUT);
  pinMode(PIN_BLUE, OUTPUT);
  pinMode(digital_In, INPUT);
  pinMode(analog_In, INPUT);

  for (int thisLed = 0; thisLed < ledCount; thisLed++) {
    pinMode(ledPins[thisLed], OUTPUT);
  }
  delay(2000);
}

void loop() {
  fenetre();
  luminosite();
  delay(5000);
}