#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <Servo.h>

Servo servo;

LiquidCrystal_I2C lcd(0x27, 16, 2);

int photoResistorsPins[8] = {0,1,2,3,4,5,6,7};
int coinValues[8] = {0.01,0.02,0.05,0.1,0.2,0.5,1,2};
int money = 0;

bool isWorking = false;
bool isPassed = false;

void setup()
{
  lcd.begin(16,2);
  servo.attach(10);
  lcd.setBacklight((uint8_t)1);

  for(int i=0; i<8; i++){                         //Toutes les photorésistances
    pinMode(i,INPUT);
  }

  pinMode(8,OUTPUT);                              //Les 4 premières LED
  pinMode(9,OUTPUT);                              //Les 4 suivantes

  pinMode(10,INPUT);                              //Un bouton Marche/Arrêt

  servo.write(0);
  lcd.print("Solde :");
  lcd.setCursor(0,1);
  lcd.print(money);
}

void loop()
{
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Solde :");
  lcd.setCursor(0,1);
  lcd.print(money);

  if(isWorking){

    digitalWrite(8,HIGH);
    digitalWrite(9,HIGH);

    if(digitalRead(10) == HIGH){
      isWorking = !isWorking;
    }

    if(isPassed){
      delay(100);
      servo.write(10);
      isPassed = false;
      servo.write(0);
    }

    while(!isPassed){
      for(int i=0; i<8; i++){
        if(digitalRead(i) == LOW){
          money += coinValues[i];
          isPassed = true;
          break;
        }
      }
    }

  }else{

    digitalWrite(8,LOW);
    digitalWrite(9,LOW);

    if(digitalRead(10) == HIGH){
      isWorking = !isWorking;
    }
  }
}