#include <Tone32.h> 

// kompajlirat će se samo ako MASTER nije postavljen
#ifndef MASTER

#define LED 14
#define BUZZER_PIN 16
#define BUZZER_CHANNEL 0 
//Mac Address slave-a kojem šaljemo podatke
uint8_t peerMacAddress[6] = {0x24, 0x0A, 0xC4, 0xAE, 0x08, 0x68}; // MAC mastera
int cnt = 0;
int rcv = 0;
int oldRcv = 0;
long prevTime = 0;
long intv = 1000;

void setup() {
                Serial.begin(115200);
              
                modeStation();
                InitESPNow();
                addPeer(peerMacAddress); // dodavanje Slave-a
                esp_now_register_recv_cb(onDataRecv); // na event primanja podataka
                esp_now_register_send_cb(onDataSent);  // vraća povratni info
                pinMode(PIN, OUTPUT);
                pinMode(LED, OUTPUT); 
                pinMode(BUZZER_PIN, OUTPUT);
              }


void onDataRecv(const uint8_t *mac_addr, const uint8_t *value, int len) {
                                                                          Serial.println (*value);
                                                                          if (len > 0){digitalWrite(LED, HIGH); } // kod prvog paljenja ako master nije prisutan ne svijetli link
                                                                          digitalWrite(PIN, *value);
                                                                               if (*value == 1)
                                                                                                 {
                                                                                                  cnt++;
                                                                                                  if (cnt == 1000)
                                                                                                              {
                                                                                                                cnt = 0;
                                                                                                                Alarm_2();                    
                                                                                                              }
                                                                                                 }
                                                                           rcv++;
                                                                           }

//vraća povratnu informaicju samo u dvosmjernoj komunikaciji
void onDataSent(const uint8_t *mac_addr, esp_now_send_status_t status) {
                                                                          Serial.println(status == ESP_NOW_SEND_SUCCESS ? "Success" : "Fail");
                                                                 
                                                                        }

void Alarm_1()
              {Door_monitor
                tone(BUZZER_PIN, NOTE_D4, 250, BUZZER_CHANNEL);
                noTone(BUZZER_PIN, BUZZER_CHANNEL);
                delay(100);
           
                }


void Alarm_2()
              {
                tone(BUZZER_PIN, NOTE_C8, 100, BUZZER_CHANNEL);
                noTone(BUZZER_PIN, BUZZER_CHANNEL);
                delay(100);
                tone(BUZZER_PIN, NOTE_C8, 100, BUZZER_CHANNEL);
                noTone(BUZZER_PIN, BUZZER_CHANNEL);
                delay(100);
                         
                }
void loop() { 
              unsigned long currentTime = millis();
              if(currentTime - prevTime > intv) {
                                                  prevTime =  currentTime;
                                                  if (rcv > oldRcv)
                                                                {
                                                                  oldRcv = rcv;
                                                                 }
                                                                  else if (rcv <= oldRcv)
                                                                                          {
                                                                                            digitalWrite(LED, LOW);
                                                                                            Alarm_1();
                                                                                            }
                                                      if (rcv > 100000){rcv = 0;
                                                                        oldRcv=0;
                                                                        }
                                                }
            }
#endif