#include <Arduino.h>
#include <SimpleRotary.h>   
#include <TM1637Display.h>
SimpleRotary rotary(3, 4, 5);

#define CLKD 6 //--> Mudar pinos
#define DIO 7 //--> Mudar pinos
#define CLKE 3
#define DT 4
#define SW 5
#define PIR 8
#define MQ 9

int minu = 00, secu = 05;
unsigned long tmp_ant, tmp_atual;
unsigned long lastBTClick = 0;
unsigned long temp_ant_blink;
int lastpos;
int readCLKE;
int numTimes;
int count = 00;

//Inicializa o display
TM1637Display display(CLKD, DIO);

void setup() {
  Serial.begin(9600); 
  pinMode(CLKE,INPUT);
  pinMode(DT,INPUT);
  pinMode(PIR,INPUT);
  pinMode(SW, INPUT_PULLUP);
  pinMode(MQ, INPUT);
  lastpos = digitalRead(CLKE);
  display.setBrightness(0x0f);
  tmp_ant = millis();
  temp_ant_blink = millis();
}

void loop() {
  while(digitalRead(MQ) == LOW){
    if (digitalRead(PIR) ==  LOW){
      Serial.print("Não detectou presença");
      Serial.print("Modo de contagem");
      countdown(minu,secu);
      Serial.print("Contagem finalizada");
      Serial.print("-------------------");
      Serial.print("Entrando em modo blink");
    }
    else if (digitalRead(PIR) == HIGH){
      Serial.println("Detectou presença");
      int8_t press = rotary.pushType(2000);
      if(press == 2){
      minu = 0;
      secu = 0;
      confige();
      Serial.println("Aperte para começar a nova contagem");
      }
      else{
        showvalues(minu,secu);
      }
    }
  }
  //TRAVA
  //BLINKRESET
  //RESET
}

void confige(){

  Serial.print("Modo de configuração");
  numTimes = 0;
  int8_t r, p;
  while (numTimes<2){
    r = rotary.rotate();
    p = rotary.push();
    while (( (r == 1) || (r == 2) )){
      if ((r == 1 ) && (count < 59)){
        count++;
       }
      if ((r ==2) && (count > 0)){
        count--;
      }
    if (numTimes == 0){
      Serial.println(count);
      showvalues(count,secu);      
    }
    else{
      Serial.println(count);
      showvalues(minu,count);
    }
    r = rotary.rotate();
    }
  if (p == 1){
    numTimes++;
    if (numTimes == 1){
      minu = count;
      Serial.println("Minuto setado");
      Serial.println(minu);
      showvalues(minu,secu);
      blinkset();     
      count = 0;
      }
    else if (numTimes == 2){
      secu = count;
      Serial.println("Segundo setado");
      Serial.println(secu);
      showvalues(minu,secu);
      blinkset();
      count = 0;
      }
    } 
  }

}       


void blinkset(){
  
  //Quando a contagem acabar, essa função será chamada
  //Código no site https://www.electricalelibrary.com/2022/06/16/display-de-4-digitos-tm1637-no-arduino/
  uint8_t OFF[] = { 0, 0, 0, 0 };
  if(millis() - temp_ant_blink >= 1500){
    temp_ant_blink = millis();
    delay(250);
    display.setSegments(OFF);
    delay(250);
    showvalues(minu,secu);   
  }

}

void blinkreset(){

  minu = 0;
  secu = 0;
  uint8_t OFF[] = { 0, 0, 0, 0 };
  while(true){
    delay(250);
    display.setSegments(OFF);
    delay(250);
    showvalues(minu,secu);
  } 

}

void countdown(int minu,int secu){
  
  while(secu != 00 || minu != 00){
    if(millis() - tmp_ant >= 1000){
      tmp_ant = millis();
      secu -= 1;
    if(secu < 0){
      secu = 59;
      minu -= 1;
    }
    if(minu<0){
      secu = 0;
      minu = 0;
    }
    showvalues(minu, secu);
    Serial.print(minu);
    Serial.print(" : ");
    Serial.println(secu);
    }
  }

}

void showvalues(int minu, int secu){

  display.showNumberDecEx(secu, 0, true, 2, 2);
  display.showNumberDecEx(minu, 0b01000000, true, 2, 0);
  delay(10);

}