#include <Adafruit_NeoPixel.h>

#define   PIN_STATUS_LED  33                     // STATUS LED - NEOPIXEL
#define   NUM_PIXELS      1                     // The number of LEDs (pixels) on NeoPixel
#define   BUTTON          35
Adafruit_NeoPixel NeoPixel(NUM_PIXELS, PIN_STATUS_LED, NEO_GRB + NEO_KHZ800);

// tlacitko + LED
unsigned long tmStatLed;
unsigned long tmStatButton;
bool      mStatButton = false;
bool      feedOK1     = false;
bool      feedOK2     = false;
bool      feedOK1A     = false;
bool      feedOK2A     = false;
bool      blink;

bool      enStatLed = true;                            // povol status LED                         MEM
int       statLedHH1 = 50, statLedHH2 = 230;               // cas kdy bude svitit status LED  (od-do)  MEM
bool      enFeed1 = true, enFeed2 = true;                     // povol indikaci krmeni 1, 2               MEM
int       feedHH11 = 100, feedHH12 = 130;                   // cas krmeni 1 (od-do)                     MEM
int       feedHH21 = 170, feedHH22 = 200;                   // cas krmeni 2 (od-do)                     MEM

#define   RED         0xFF0000
#define   GREEN       0x00FF00
#define   BLUE        0x0000FF
#define   BLACK       0x000000

//----------------------------------------------+----------------------------------------------
unsigned long  tmClock;
int hh,mm;
bool almMessage = true;
//----------------------------------------------+----------------------------------------------

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  setupStatusLED();                             // inicializace WS2816B - stavova LED
}

void loop() {
  // put your main code here, to run repeatedly:
  
  statusLED();                                  // stavova LED - status zarizeni
  simul();
}

//----------------------------------------------+----------------------------------------------

void setupStatusLED() {
  NeoPixel.begin();                             // INITIALIZE NeoPixel strip object (REQUIRED)
  pinMode(BUTTON, INPUT);
  NeoPixel.setBrightness(200);                   // jas =  0-255
  tmStatLed = millis();
}

void statusLED() {
  bool button = !digitalRead(BUTTON);
  unsigned long color = BLACK;

  if (button && !mStatButton) {
    tmStatButton = millis();
    mStatButton = true;
    if (hh >= feedHH11) feedOK1 = true;
    if (hh >= feedHH21) feedOK2 = true;
  } else if (mStatButton && millis() - tmStatButton > 500) {
    mStatButton = false;
  } else if (feedOK1 && millis() - tmStatButton > 10000 && !feedOK1A) {
    feedOK1A = true;
  } else if (feedOK2 && millis() - tmStatButton > 10000 && !feedOK2A) {
    feedOK2A = true;
  }

  if (hh >= statLedHH2) {
    feedOK1 = feedOK1A = feedOK2 = feedOK2A = false; 
  }

  if (millis() - tmStatLed >= 1000) {
      tmStatLed = millis();
    if (hh >= statLedHH1 && hh < statLedHH2 && enStatLed) {             // cas kdy bude LED svitit
      if (almMessage && blink) {                                                
        color = RED;                           // alarm -> RED
      } else if (enFeed1 && !feedOK1 && ((hh >= feedHH11 && hh < feedHH12) || (hh >= feedHH12 && !blink))) { 
        color = BLUE;                           // nakrmit -> BLUE
      } else if (enFeed2 && !feedOK2 && ((hh >= feedHH21 && hh < feedHH22) || (hh >= feedHH22 && !blink))) {
        color = BLUE;                           // nakrmit -> BLUE
      } else if ((enFeed1 && hh < feedHH12 && feedOK1 && !feedOK1A) || (enFeed2 && hh < feedHH22 && feedOK2 && !feedOK2A)) {
        color = GREEN;                           // nakrmeno -> GREEN
      }    
    }
    
    NeoPixel.clear();                             // set all pixel colors to 'off'. It only takes effect if pixels.show() is called
    NeoPixel.fill(color);                         // set color to red -> it only takes effect if pixels.show() is called
    NeoPixel.show();                              // update to the NeoPixel Led
    blink = !blink;
    //Serial.println("Button:" + String(button));

    Serial.println("Time : " + String(hh) + " ; color : " + String(color));
  }
}

void simul() {
  if (millis() - tmClock > 100) {
    tmClock = millis();
    hh++;
    if (hh>239)hh=0;
  }
  
}