#include <LiquidCrystal_I2C.h>
#include <GyverEncoder.h>
#define version "1.0."
#define buzz_pin 6
#define led_pin 5
#define period 350
#define hz 250
#define t1 100
#define t2 50
#define t3 50
LiquidCrystal_I2C lcd(0x27, 16, 2);
Encoder enc(2, 3, 4);
int counter1 = 0;
int counter2 = 0;
int counter3 = 0;
int counter4 = 0;
int counter5 = 0;
int counter6 = 0;
byte next_id = 0;
boolean config = 0;
boolean led_flag = 0;
boolean music = 1;
uint32_t timer1;

void setup() {
  Serial.begin(9600);
  lcd.init();
  lcd.backlight();
  enc.setType(TYPE1);
  enc.setTickMode(AUTO);
  main_screen();
}


void loop() {
  if(enc.isHolded()){
    if(config == 0){
      tone(buzz_pin, hz, t1);
      configuration(counter1, counter2, counter3, counter4, counter5, counter6);
    }
    else if(config == 1){
      tone(buzz_pin, hz, t1);
      main_screen();
    }
  }
  if(config == 0){
    digitalWrite(led_pin, 1);
  }
  if(config == 1){
    if(millis() - timer1 >= period){
      timer1 = millis();
      led_flag = !led_flag;
      digitalWrite(led_pin, led_flag);
    }
  }
  if(next_id == 6){
    next_id = 0;
    configuration(counter1, counter2, counter3, counter4, counter5, counter6);
  }
  if(enc.isRight() == 1 && config == 1){
    switch(next_id){
      case 0: counter1++;
        tone(buzz_pin, hz, t2);
        break;
      case 1: counter2++;
        tone(buzz_pin, hz, t2);
        break;
      case 2: counter3++;
        tone(buzz_pin, hz, t2);
        break;
      case 3: counter4++;
        tone(buzz_pin, hz, t2);
        break;
      case 4: counter5++;
        tone(buzz_pin, hz, t2);
        break;
      case 5: counter6++;
        tone(buzz_pin, hz, t2);
        break;
    }
    configuration(counter1, counter2, counter3, counter4, counter5, counter6);
  }
  if(enc.isLeft() == 1 && config == 1){
    switch(next_id){
      case 0: counter1--;
        break;
      case 1: counter2--;
        break;
      case 2: counter3--;
        break;
      case 3: counter4--;
        break;
      case 4: counter5--;
        break;
      case 5: counter6--;
        break;
    }
    configuration(counter1, counter2, counter3, counter4, counter5, counter6);
    if(music){
      tone(buzz_pin, hz, t3);
    }
  }
  if(enc.isClick() == 1 && config == 1){
    if(music){
      tone(buzz_pin, hz, t1);
    }
    next_id++;
    configuration(counter1, counter2, counter3, counter4, counter5, counter6);
  }
}
void main_screen(){
  config = 0;
  lcd.clear();
  lcd.setCursor(3, 0);
  lcd.print("ULTRAMIXER");
  lcd.setCursor(4, 1);
  lcd.print("ver ");
  lcd.print(version);
}

void configuration(int c1, int c2, int c3, int c4, int c5, int c6){
  config = 1;
  switch(next_id){
    case 0:
      lcd.clear();
      lcd.setCursor(1, 0);
      lcd.print(c1);
      lcd.setCursor(1, 1);
      lcd.print(c2);
      lcd.setCursor(7, 0);
      lcd.print(c3);
      lcd.setCursor(7, 1);
      lcd.print(c4);
      lcd.setCursor(13, 0);
      lcd.print(c5);
      lcd.setCursor(13, 1);
      lcd.print(c6);
      lcd.setCursor(0, 0);
      lcd.print(">");
      break;
    case 1:
      lcd.clear();
      lcd.setCursor(1, 0);
      lcd.print(c1);
      lcd.setCursor(1, 1);
      lcd.print(c2);
      lcd.setCursor(7, 0);
      lcd.print(c3);
      lcd.setCursor(7, 1);
      lcd.print(c4);
      lcd.setCursor(13, 0);
      lcd.print(c5);
      lcd.setCursor(13, 1);
      lcd.print(c6);
      lcd.setCursor(0, 1);
      lcd.print(">");
      break;
    case 2:
      lcd.clear();
      lcd.setCursor(1, 0);
      lcd.print(c1);
      lcd.setCursor(1, 1);
      lcd.print(c2);
      lcd.setCursor(7, 0);
      lcd.print(c3);
      lcd.setCursor(7, 1);
      lcd.print(c4);
      lcd.setCursor(13, 0);
      lcd.print(c5);
      lcd.setCursor(13, 1);
      lcd.print(c6);
      lcd.setCursor(6, 0);
      lcd.print(">");
      break;
    case 3:
      lcd.clear();
      lcd.setCursor(1, 0);
      lcd.print(c1);
      lcd.setCursor(1, 1);
      lcd.print(c2);
      lcd.setCursor(7, 0);
      lcd.print(c3);
      lcd.setCursor(7, 1);
      lcd.print(c4);
      lcd.setCursor(13, 0);
      lcd.print(c5);
      lcd.setCursor(13, 1);
      lcd.print(c6);
      lcd.setCursor(6, 1);
      lcd.print(">");
      break;
    case 4:
      lcd.clear();
      lcd.setCursor(1, 0);
      lcd.print(c1);
      lcd.setCursor(1, 1);
      lcd.print(c2);
      lcd.setCursor(7, 0);
      lcd.print(c3);
      lcd.setCursor(7, 1);
      lcd.print(c4);
      lcd.setCursor(13, 0);
      lcd.print(c5);
      lcd.setCursor(13, 1);
      lcd.print(c6);
      lcd.setCursor(12, 0);
      lcd.print(">");
      break;
    case 5:
      lcd.clear();
      lcd.setCursor(1, 0);
      lcd.print(c1);
      lcd.setCursor(1, 1);
      lcd.print(c2);
      lcd.setCursor(7, 0);
      lcd.print(c3);
      lcd.setCursor(7, 1);
      lcd.print(c4);
      lcd.setCursor(13, 0);
      lcd.print(c5);
      lcd.setCursor(13, 1);
      lcd.print(c6);
      lcd.setCursor(12, 1);
      lcd.print(">");
      break;
  }
}