# include "fcs.h"
# include "jbutton.h"

unsigned long now;
unsigned int counter;

# define button 2
# define LED 3

# define PRESSED LOW

// polling period. TOF will def have a fresh report
# define RATE 1333

jButton event4;  // fake no cat
jButton event0;  // fake cat

// pins for fake event trigger buttons
# define fake0 6
# define fake4 5

// ----- symbolic indices -----
enum {
  HEARTBEAT,    // 0
  NONE_1,       // 1
  NONE_2,         // 2
  SEE0,         // 3
  ACK,          // 4
  SEE4,         // 5
  NONE_6,       // 6
  ARRIVE,       // 7
  LEAVE,        // 8
  NONE_9,       // 9
  HERE,         // 10
  GONE,         // 11

  LED_COUNT
};

void setup() {
  Serial.begin(115200);
  Serial.println("hi Mom!");

  pinMode(button, INPUT_PULLUP);
  pinMode(LED, OUTPUT);

  setupFlash();

  event0.begin(fake0);
  event4.begin(fake4);
}

// fake TOF readings
bool event;
unsigned char eventType;

// note when the cat last disappeared
bool catHasBeen;
unsigned long lastLeft;
// and if longer than this, conclude it is gone, milliseconds
# define LONGGONE 3777

bool catPresent;
int catScore;

bool catInSight;  // active signal - true between arrival and departure, many transitions per real visit

void loop()
{
  static unsigned long lastTime;
  now = millis();
// loop rate

  serviceFlash();

  event0.update();
  event4.update();
  
  if (event0.uolPress()) {
    event = true;
    eventType = 0;
    flash(SEE0);
  }

  if (event4.uolPress()) {
    event = true;
    eventType = 4;
    flash(SEE4);
  }
 
  if (now - lastTime < RATE) return;
  lastTime = now;

// once per
  flash(HEARTBEAT, 7);

// we are now adding N consecutive identical reports
# define K1 3

  if (event) {
    if (eventType == 0)
      if (catScore < K1) catScore++;
  
    if (eventType == 4)
      if (catScore > 0) catScore--;

    event = false;
  }

  if (catScore == K1 && !catPresent) {
    catPresent = true;
    catHasBeen = true;
    flash(ARRIVE);
    Serial.print(now); Serial.println(" cat in sight");
    latchOn(HERE);
  }

  if (catScore == 0 && catPresent) {
    catPresent = false;
    flash(LEAVE);
    Serial.print(now); Serial.println(" cat no in sight");
    resetLatched();
    
    lastLeft = now;
  }

// if it has been awhile with no activity, conclude the cat has left the building
  if (catHasBeen && !catPresent)
    if (now - lastLeft > LONGGONE) {
      catHasBeen = false;
      Serial.print(now);
      Serial.print(" cat left at "); Serial.print(lastLeft);
      Serial.println("");

      flash(GONE, 50); // long flash when Lucy jets
    }
}

/*
void loop() {
  static unsigned long lastTime;
  now = millis();
// loop rate

  serviceFlash();



  static bool flag;

// this could be a debounced button and just do the thing asynchronously
  if (digitalRead(button) == PRESSED) {
    flag = true;
    flash(ACK);
  }


// once per
  if (now - lastTime < RATE) return;
  lastTime = now;

  Serial.println(counter); counter++;

  if (flag) {
    flag = false;
    digitalWrite(LED, digitalRead(LED) == LOW ? HIGH : LOW);

    flash(ACTION);
    if (digitalRead(LED) == HIGH) flash(STOP);
    else flash(START);
  }
}
*/