/*MIT License

Copyright (c) 2019 DrAsso

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

Note:
N'oubliez pas de :
-Modifier les PIN pour faire correspondre avec votre réalisation
-Mettre à jour l'adresse I2C pour le LCD
-Relire le code pour comprendre et adapter

Buy me a drink
Donation XMR: 82cFrUkRanH2qrsx3qTstyGc9SKcb9VVPL4v8iSpQ8NzEbvc6f4wbT1BQrX8ftrGE74ck6tcwzYt31hY4yYRHxcM94FfTFG (buy me a drink)
*/

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <RTClib.h>
#include <DHT.h>

#define TIMEDISPLAYSTART 6 // Heure de démarrage de la sonde moisture
#define TIMEDISPLAYSTOP 23 // Heure d'arret de la sonde moisture
#define DUREEFANJOUR 45 // minutes de fonctionnement par H
#define DUREEFANNUIT 15
#define MOISTUREMIN 1
#define MOISTUREMAX 1024
#define PAUSETIME 1

#define I2C_ADDR 0x27 // Adresse I2C LCD
#define LCDWIDTH 16
#define LCDHEIGHT 2

#define DHTTYPE DHT22

#define VERSIONSOFT "Gardi V0.6rc2"


//WIRE CONF
const int moistureSensor = A0;
const int buttonOne = 2;
const int relayLamp = 6;
const int relayFAN = 5;
const int powerMoisturePIN = 7;
const int dhtPIN = 8;

LiquidCrystal_I2C lcd(I2C_ADDR,LCDWIDTH,LCDHEIGHT);
RTC_DS1307 rtc;
DHT dht(dhtPIN, DHTTYPE);

int moisture =0;
int humainMoisture =0;
int stateLamp = 0;
int stateFAN = 0;
int temperature =0;
int humidite = 0;

volatile int heureStart = 6;
volatile int heureStop = 23;
//CYCLES: 6-23:59 / 4-23:59 / 6-17:59
unsigned long debouncing_time = 1000; //Debouncing Time in Milliseconds 600:Ok
volatile unsigned long last_micros;

void setup() {
// SETUP
//PIN MODE
pinMode (moistureSensor, INPUT);
pinMode (relayLamp, OUTPUT);
pinMode (relayFAN, OUTPUT);
pinMode (buttonOne, INPUT_PULLUP);
pinMode (powerMoisturePIN, OUTPUT);

//INTERRUPT
attachInterrupt(digitalPinToInterrupt(buttonOne), changeLightCycle, RISING);

//Poweroff the relays
digitalWrite(relayFAN,HIGH);
digitalWrite(relayLamp,HIGH);

//Serial
//Serial.begin(9600);

//LCD
lcd.init();
lcd.backlight();
lcd.home(); // go home
lcd.setCursor(2,0);
lcd.print(VERSIONSOFT);
lcd.setCursor(4,1);
lcd.print("By DrAsso");
lcd.home();

//First moisture analysis
digitalWrite(powerMoisturePIN,HIGH);
delay(1000);delay(1000);delay(1000);delay(1000);delay(1000);delay(1000);
moisture = analogRead(moistureSensor);

//DHT
dht.begin();

//RTC
if (! rtc.begin()) {
  Serial.println("Couldn't find RTC");
  lcd.clear();
  lcd.print("Error with RTC");
  while (1);
}
if (! rtc.isrunning()) {
    Serial.println("RTC is NOT running!");
    // following line sets the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    //rtc.adjust(DateTime(2014, 1, 2, 6, 28, 40));
}
}

void loop() {
  // LOOP
DateTime now = rtc.now();
//Serial.print(now.year(), DEC);
//Serial.print('/');
//Serial.print(now.month(), DEC);
//Serial.print('/');
//Serial.print(now.day(), DEC);
//Serial.print(" - ");
//Serial.print(now.hour(), DEC);
//Serial.print(':');
//Serial.print(now.minute(), DEC);
//Serial.print(':');
//Serial.print(now.second(), DEC);
//Serial.println(' ');

//CAPTEUR HUMIDE Moisture (DISPLAY)
// On ne laisse pas la sonde alimentée 24/24 car elle ne supporte pas trop... C'est une sonde fragile
if(now.hour() >= TIMEDISPLAYSTART && now.hour() < TIMEDISPLAYSTOP ){
  digitalWrite(powerMoisturePIN,HIGH);
  moisture = analogRead(moistureSensor);
}
else{
  digitalWrite(powerMoisturePIN,LOW);
}


humainMoisture = map(moisture,MOISTUREMIN,MOISTUREMAX,0,1023);
//Serial.print("Actual Moisture: ");
//Serial.println(moisture);
//Serial.print("Human Moisture: ");
//Serial.print(humainMoisture);
//Serial.println("%");
//Serial.print("Moisture Limit: ");
//Serial.println(moistureLimit);
//Serial.print("Humain Moisture Limit: ");
//Serial.println(map(moistureLimit,MOISTUREMIN,MOISTUREMAX,0,100));


//VENTILATION
if (now.hour() >= heureStart && now.hour() <= heureStop){
  //JOUR
  if (now.minute() > DUREEFANJOUR){
    //FAN OFF
    if (stateFAN==1){
      last_micros = micros();
    }
    stateFAN = 0;
    Serial.println("FAN OFF");
    digitalWrite(relayFAN,HIGH);
  }
  else{
    //FAN ON
    if (stateFAN==0){
      last_micros = micros();
    }
    stateFAN = 1;
    Serial.println("FAN ON");
    digitalWrite(relayFAN,LOW);
  }
}
else{
  //NUIT
  if (now.minute() > DUREEFANNUIT){
    //FAN OFF
    if (stateFAN==1){
      last_micros = micros();
    }
    stateFAN = 0;
    Serial.println("FAN OFF");
    digitalWrite(relayFAN,HIGH);
  }
  else{
    //FAN ON
    if (stateFAN==0){
      last_micros = micros();
    }
    stateFAN = 1;
    Serial.println("FAN ON");
    digitalWrite(relayFAN,LOW);
  }
}



//TEMP + HUMIDITE
if (now.second() % 5 == 0){
  Serial.println("Calcul de la T°");
  temperature = dht.readTemperature();
  humidite = dht.readHumidity();
}


//LUMIERE
if (now.hour() >= heureStart && now.hour() <= heureStop){
  //JOUR
  if (stateLamp==0){
    last_micros = micros();
  }
  digitalWrite(relayLamp,LOW);
  Serial.println("Lampe ON");
  stateLamp = 1;
}
else{
  //NUIT
  if (stateLamp==1){
    last_micros = micros();
  }
//  Serial.println("Pas de lumière pour le moment");
  digitalWrite(relayLamp,HIGH);
//  Serial.println("Lampe OFF");
  stateLamp = 0;
}

//LCD DISPLAY
//Coupure du retroeclerage pendant la nuit - entre minuit et 5h
if(now.hour() >= 0 && now.hour() <= 5){
  lcd.noBacklight();
}
else{
  lcd.backlight();
}

//clear screen every 5 minutes
if (now.minute() % 5 == 0 && now.second()==1){
  lcd.clear();
}

lcd.home();
//lcd.clear();
lcd.print("T");
lcd.print(temperature);
lcd.print("C H");
lcd.print(humidite);
lcd.print("% W");
lcd.print(humainMoisture);
lcd.setCursor(0,1);
lcd.print("L");
lcd.print(stateLamp);
lcd.print(" F");
lcd.print(stateFAN);
lcd.print(" C");
lcd.print((heureStop+1)-heureStart);
lcd.print(" ");
lcd.print(now.hour());
lcd.print(":");
lcd.print(now.minute());

Serial.println("--");
delay(1000*PAUSETIME);

}

void changeLightCycle(){
 if((unsigned long)(micros() - last_micros) >= debouncing_time * 1000) {
  //CYCLES: 6-23:59 / 4-23:59 / 6-17:59
  //Serial.println("LIGHTCYCLE INTERRUPT");
  if (heureStart == 6 && heureStop == 23){
    heureStart = 4;
     //Serial.println("INTERRUPT 1");
     last_micros = micros();
     return;
  }
  if (heureStart == 4 && heureStop == 23){
    heureStart = 6;
    heureStop = 17;
     //Serial.println("INTERRUPT 2");
     last_micros = micros();
     return;
  }
  if (heureStart == 6 && heureStop == 17){
    heureStop = 23;
     //Serial.println("INTERRUPT 3");
     last_micros = micros();
     return;
    }
}
}