#include "GyverButton.h"
#include "EEPROMextent.h"

#define LED_PIN             2
#define SENSOR_PIN          3
#define BTN_PIN         SENSOR_PIN
#define EXEC_PIN           5
#define mode1_default 2000
#define mode2_default 4000
#define mode3_default 6000

struct MyObject {
  uint16_t key;
  uint16_t save_modes[3];
  uint16_t nextaddr;
};

uint16_t modes[3] = {mode1_default, mode2_default, mode3_default};
uint16_t eeAddress=0;
MyObject eeBuffer;

GButton butt1(BTN_PIN);
int value = 0;
uint16_t t_start;

uint32_t t1;
byte runmode=1;

void blink(byte count=1, byte pin=LED_PIN, uint16_t on_delay=350, uint16_t off_delay=500){
  for (byte i=0 ; i<count; i++) {
    digitalWrite(LED_PIN,HIGH);
    uint16_t t_sub=millis();
    while ( 1 ) {
      butt1.tick();
      if (millis()-t_sub >= on_delay) {
        digitalWrite(LED_PIN,LOW);
        break;
      }
    }
    t_sub=millis();
    while (1) {
      butt1.tick();
      if (millis()-t_sub >= off_delay) {
        break;
      }
    } 
  } 
}
uint16_t get_delay(byte mode) {
  bool record=false;
  uint16_t t_start;
  blink(5,LED_PIN,200,200);
  blink(1,LED_PIN,500,1000);
  while (1) {
    butt1.tick();
    if (!record && butt1.isClick()) {         // in stendby mode waiting for click to start recording
      // start recording period
      t_start=millis();
      record=true;                              // record mode on
    }
    if (record) {                               // in record mode
      blink(mode,LED_PIN,100,0);                // turn led on 
    } else {                                    // in stendby mode
      blink(mode,LED_PIN,100,100);              // blink with delay 100
    }
    if (record && butt1.isClick()) {             // in record mode waiting for a click to stop recording
      return millis()-t_start;  // return recorded value
    }
  }
}

void setup() {
  pinMode(LED_PIN,OUTPUT);
  pinMode(EXEC_PIN,OUTPUT);
  attachInterrupt(BTN_PIN, isr, CHANGE);

  EEPROMextent.readAnything(eeAddress, eeBuffer);
  if (eeBuffer.key != 0xFF77) {
    eeBuffer.key=0xFF77;
    eeBuffer.save_modes[0]=mode1_default;
    eeBuffer.save_modes[1]=mode2_default;
    eeBuffer.save_modes[2]=mode3_default;
    eeBuffer.nextaddr=0;
    EEPROMextent.writeAnything(eeAddress, eeBuffer);
  } else {  
    butt1.tick();
    if (butt1.state()) {
      // perform calibration
      for (byte j=0; j<3; j++) {
        eeBuffer.save_modes[j]=get_delay(j+1);
        blink(j+1,LED_PIN,200,100);
        blink(1,LED_PIN,5000,1000);
      }
      eeAddress=eeAddress+sizeof(eeBuffer);
      eeBuffer.nextaddr=eeAddress;
      eeBuffer.key=0xFF77;
      EEPROMextent.writeAnything(eeAddress, eeBuffer);
      blink(10);
    }

  }
  butt1.setDebounce(80);      // настройка антидребезга (по умолчанию 80 мс)
  butt1.setTimeout(300);  
}


void isr() {
  butt1.tick();  // опрашиваем в прерывании, чтобы поймать нажатие в любом случае
}

void loop() {
  butt1.tick();  // опрашиваем в скетче, иначе не будут работать проверки по времени!

//  if (butt1.isClick()) Serial.println("Click");         // проверка на один клик
  if (butt1.isPress()){
    digitalWrite(EXEC_PIN,HIGH);
    digitalWrite(LED_PIN,HIGH);
    t1=millis();
  }

  if (butt1.isSingle()) {
    runmode=1;
  }
  if (butt1.isDouble()) {
    runmode=2;
  }
  if (butt1.isTriple()) {
    runmode=3;
  }
  uint16_t timeout=eeBuffer.save_modes[runmode-1];
if (butt1.isRelease()) {
    if (runmode==1 || runmode==2 || runmode==3) {
      while (1) {
        butt1.tick();
        if (millis()-t1>timeout) {
          digitalWrite(EXEC_PIN,LOW);
          digitalWrite(LED_PIN,LOW);
          break;
        }
      }
    } else {
      digitalWrite(EXEC_PIN,LOW);
      digitalWrite(LED_PIN,LOW);
    }
  }
}