#include <Adafruit_NeoPixel.h>
#include <ESP32Servo.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include "xht11.h"

//#include <analogWrite.h>
#define fanPin1 19
#define fanPin2 18
#define led_y 12  //Define the yellow led pin to 12
#define btnPin 16
#define servoPinF 5
#define waterPin 34
#define LED_PIN    26
#define LED_COUNT 4

xht11 xht(17);
unsigned char dht[4] = {0, 0, 0, 0};//Only the first 32 bits of data are received, not the parity bits
#ifdef __AVR__
 #include <avr/power.h> // Required for 16 MHz Adafruit Trinket
#endif
// Which pin on the Arduino is connected to the NeoPixels?
// On a Trinket or Gemma we suggest changing this to 1:

// How many NeoPixels are attached to the Arduino?

// Declare our NeoPixel strip object:
Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);
LiquidCrystal_I2C mylcd(0x27,16,2);

Servo myservoP;  
Servo myservoF;

 
int pos = 0;    // variable to store the servo position
int servoPinP = 13;
boolean btnFlag = 0;
String password = "";

/*#include "MFRC522_I2C.h"
// IIC pins default to GPIO21 and GPIO22 of ESP32
// 0x28 is the i2c address of SDA, if doesn't match，please check your address with i2c.
MFRC522_I2C mfrc522(0x28);  */

void setup() {
  // These lines are specifically to support the Adafruit Trinket 5V 16 MHz.
  // Any other board, you can remove this part (but no harm leaving it):
#if defined(__AVR_ATtiny85__) && (F_CPU == 16000000)
  clock_prescale_set(clock_div_1);
#endif
  // END of Trinket-specific code.
  Serial.begin(115200); 
  Wire.begin(); 
  
  /*mfrc522.PCD_Init(); 
  ShowReaderDetails(); 
  Serial.println(F("Scan PICC to see UID, type, and data blocks..."));  
  pinMode(btnPin, INPUT);
  mylcd.setCursor(0, 0);
  mylcd.print("Carte");*/
  
  strip.begin();           // INITIALIZE NeoPixel strip object (REQUIRED)
  strip.show();            // Turn OFF all pixels ASAP
  strip.setBrightness(50); // Set BRIGHTNESS to about 1/5 (max = 255)

  myservoP.attach(servoPinP);   // attaches the servo on pin 13 to the servo object

  pinMode(waterPin, INPUT);
  myservoF.attach(servoPinF,500,2400);// Valeurs pour servo 
  myservoF.write(140);
  delay(200);

pinMode(fanPin1, OUTPUT);
pinMode(fanPin2, OUTPUT);

mylcd.init();
mylcd.backlight();

pinMode(led_y, OUTPUT);  //Set pin to output mode
}


// loop() function -- runs repeatedly as long as board is on ---------------

void loop() {
ledON();  
affiche();  
servo_porte();
ledOFF();
capt_temp();
ventilateur001();
ledON();
affiche(); 
LED_RVB() ;
capt_temp();
ledOFF();
affichefenetre();
fenetre();
affiche();
}


// Some functions of our own for creating animated effects -----------------

// Fill strip pixels one after another with a color. Strip is NOT cleared
// first; anything there will be covered pixel by pixel. Pass in color
// (as a single 'packed' 32-bit value, which you can get by calling
// strip.Color(red, green, blue) as shown in the loop() function above),
// and a delay time (in milliseconds) between pixels.
void colorWipe(uint32_t color, int wait) {
  for(int i=0; i<strip.numPixels(); i++) { // For each pixel in strip...
    strip.setPixelColor(i, color);         //  Set pixel's color (in RAM)
    strip.show();                          //  Update strip to match
    delay(wait);                           //  Pause for a moment
  }
}

// Theater-marquee-style chasing lights. Pass in a color (32-bit value,
// a la strip.Color(r,g,b) as mentioned above), and a delay time (in ms)
// between frames.
void theaterChase(uint32_t color, int wait) {
  for(int a=0; a<10; a++) {  // Repeat 10 times...
    for(int b=0; b<3; b++) { //  'b' counts from 0 to 2...
      strip.clear();         //   Set all pixels in RAM to 0 (off)
      // 'c' counts up from 'b' to end of strip in steps of 3...
      for(int c=b; c<strip.numPixels(); c += 3) {
        strip.setPixelColor(c, color); // Set pixel 'c' to value 'color'
      }
      strip.show(); // Update strip with new contents
      delay(wait);  // Pause for a moment
    }
  }
}

// Rainbow cycle along whole strip. Pass delay time (in ms) between frames.
void rainbow(int wait) {
  // Hue of first pixel runs 5 complete loops through the color wheel.
  // Color wheel has a range of 65536 but it's OK if we roll over, so
  // just count from 0 to 5*65536. Adding 256 to firstPixelHue each time
  // means we'll make 5*65536/256 = 1280 passes through this outer loop:
  for(long firstPixelHue = 0; firstPixelHue < 5*65536; firstPixelHue += 256) {
    for(int i=0; i<strip.numPixels(); i++) { // For each pixel in strip...
      // Offset pixel hue by an amount to make one full revolution of the
      // color wheel (range of 65536) along the length of the strip
      // (strip.numPixels() steps):
      int pixelHue = firstPixelHue + (i * 65536L / strip.numPixels());
      // strip.ColorHSV() can take 1 or 3 arguments: a hue (0 to 65535) or
      // optionally add saturation and value (brightness) (each 0 to 255).
      // Here we're using just the single-argument hue variant. The result
      // is passed through strip.gamma32() to provide 'truer' colors
      // before assigning to each pixel:
      strip.setPixelColor(i, strip.gamma32(strip.ColorHSV(pixelHue)));
    }
    strip.show(); // Update strip with new contents
    delay(wait);  // Pause for a moment
  }
}

// Rainbow-enhanced theater marquee. Pass delay time (in ms) between frames.
void theaterChaseRainbow(int wait) {
  int firstPixelHue = 0;     // First pixel starts at red (hue 0)
  for(int a=0; a<30; a++) {  // Repeat 30 times...
    for(int b=0; b<3; b++) { //  'b' counts from 0 to 2...
      strip.clear();         //   Set all pixels in RAM to 0 (off)
      // 'c' counts up from 'b' to end of strip in increments of 3...
      for(int c=b; c<strip.numPixels(); c += 3) {
        // hue of pixel 'c' is offset by an amount to make one full
        // revolution of the color wheel (range 65536) along the length
        // of the strip (strip.numPixels() steps):
        int      hue   = firstPixelHue + c * 65536L / strip.numPixels();
        uint32_t color = strip.gamma32(strip.ColorHSV(hue)); // hue -> RGB
        strip.setPixelColor(c, color); // Set pixel 'c' to value 'color'
      }
      strip.show();                // Update strip with new contents
      delay(wait);                 // Pause for a moment
      firstPixelHue += 65536 / 90; // One cycle of color wheel over 90 frames
    }
  }
}

void servo_porte(){
  for (pos = 0; pos <= 180; pos += 1) { // goes from 0 degrees to 180 degrees
    // in steps of 1 degree
    myservoP.write(pos);              // tell servo to go to position in variable 'pos'
    delay(15);                       // waits 15ms for the servo to reach the position
  }
  for (pos = 180; pos >= 0; pos -= 1) { // goes from 180 degrees to 0 degrees
    myservoP.write(pos);              // tell servo to go to position in variable 'pos'
    delay(15);                       // waits 15ms for the servo to reach the position
  }
}


void ventilateur001(){
  digitalWrite(fanPin1, LOW); //pwm = 0
  analogWrite(fanPin2, 90);
  delay(1000);
  digitalWrite(fanPin1, LOW);
  digitalWrite(fanPin2, LOW);
  delay(1000);
  digitalWrite(fanPin1, LOW); //pwm = 0
  analogWrite(fanPin2, 50);
  delay(1000);
  digitalWrite(fanPin1, LOW);
  digitalWrite(fanPin2, LOW);
  delay(1000);
  digitalWrite(fanPin1, LOW); //pwm = 0
  analogWrite(fanPin2, 10);
  delay(1000);
  
  /*digitalWrite(fanPin1,LOW); //pwm = 255
  analogWrite(fanPin2, 100);
  delay(1000);
  digitalWrite(fanPin1, LOW);
  digitalWrite(fanPin2, LOW);
  delay(1000);*/
}

void affiche(){
  mylcd.clear();
  mylcd.setCursor(2, 0);
  mylcd.print("Bienvenue au");
  mylcd.setCursor(3, 1);
  mylcd.print("Castellab");
}

void ledON(){     //The code inside the loop function will always run in a loop
  digitalWrite(led_y, HIGH);  //Light up the LED
  delay(2000);     //Delay statement, in ms
}

void ledOFF(){
  digitalWrite(led_y, LOW);   //Close the LED
  delay(2000);
  }

  void capt_temp(){
     mylcd.clear();  
  if (xht.receive(dht)) { //Returns true when checked correctly
    Serial.print("RH:");
    Serial.print(dht[0]); //The integral part of humidity, DHT [1] is the fractional part
    Serial.print("%  ");
    Serial.print("Temp:");
    Serial.print(dht[2]); //The integral part of temperature, DHT [3] is the fractional part
    Serial.println("C");
 
    mylcd.setCursor(0, 0);
    mylcd.print("T = ");
    mylcd.print(dht[2]);
    mylcd.print(" degres ");
    mylcd.setCursor(0, 1);
    mylcd.print("H = ");
    mylcd.print(dht[0]);
    mylcd.print(" % ");
   
    delay(200);
  } else {    //Read error
    Serial.println("sensor error");
  }
  delay(1000);  //It takes 1000ms to wait for the device to read
}  

void fenetre(){
  int water_val = analogRead(waterPin);
  Serial.println(water_val);
  if(water_val > 1500) {
    myservoF.write(0);
    delay(200);
  }
  else {
    myservoF.write(140);
    delay(200);
  }
  delay(2000);
}

void affichefenetre(){
  int water_val = analogRead(waterPin);
  mylcd.clear();
  mylcd.setCursor(2, 0);
  mylcd.print("capteur Pluie");
  mylcd.setCursor(3, 1);
  mylcd.print(water_val);
  delay(2000);
}

void LED_RVB(){// Fill along the length of the strip in various colors...
  colorWipe(strip.Color(255,   0,   0), 50); // Red
  colorWipe(strip.Color(  0, 255,   0), 50); // Green
  colorWipe(strip.Color(  0,   0, 255), 50); // Blue

  // Do a theater marquee effect in various colors...
  theaterChase(strip.Color(127, 127, 127), 50); // White, half brightness
  theaterChase(strip.Color(127,   0,   0), 50); // Red, half brightness
  theaterChase(strip.Color(  0,   0, 127), 50); // Blue, half brightness

  rainbow(10);             // Flowing rainbow cycle along the whole strip
  theaterChaseRainbow(50); // Rainbow-enhanced theaterChase variant
}
/*
void RFID(){
  // 
  if ( ! mfrc522.PICC_IsNewCardPresent() || ! mfrc522.PICC_ReadCardSerial() ) {
    delay(50);
    password = "";
    if(btnFlag == 1)
    {
      boolean btnVal = digitalRead(btnPin);
      if(btnVal == 0)  //Swipe the card to open the door and click button 1 to close the door
      {
        Serial.println("ferme");
        mylcd.setCursor(0, 0);
        mylcd.print("ferme ");
        myservoP.write(0);
        btnFlag = 0;
      }
    }
    return;
  }
 
  // select one of door cards. UID and SAK are mfrc522.uid.
 
  // save UID
  Serial.print(F("Card UID:"));
  for (byte i = 0; i < mfrc522.uid.size; i++) {
    Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
    //Serial.print(mfrc522.uid.uidByte[i], HEX);
    Serial.print(mfrc522.uid.uidByte[i]);
    password = password + String(mfrc522.uid.uidByte[i]);
  }
  //if(password == "131233147231")  //Carte
  if(password == "243636633")     //badge
  {
    Serial.println("open");
    mylcd.setCursor(0, 0);
    mylcd.clear();
    mylcd.print("ouvert");
    myservoP.write(180);
    password = "";
    btnFlag = 1;
  }
  else   //The card number is wrong，LCD displays error
  {
    password = "";
    mylcd.setCursor(0, 0);
    mylcd.print("erreur ");
  }
  //Serial.println(password);
}

void ShowReaderDetails() {
  //  attain the MFRC522 software
  byte v = mfrc522.PCD_ReadRegister(mfrc522.VersionReg);
  Serial.print(F("MFRC522 Software Version: 0x"));
  Serial.print(v, HEX);
  if (v == 0x91)
    Serial.print(F(" = v1.0"));
  else if (v == 0x92)
    Serial.print(F(" = v2.0"));
  else
    Serial.print(F(" (unknown)"));
  Serial.println("");
  // when returning to 0x00 or 0xFF, may fail to transmit communication signals
  if ((v == 0x00) || (v == 0xFF)) {
    Serial.println(F("WARNING: Communication failure, is the MFRC522 properly connected?"));
  }
}
*/