#include <esp_now.h>
#include <WiFi.h>

// Define the structure for receiving data
typedef struct struct_message {
    int value;
} struct_message;

// Create a struct_message called myData
struct_message myData;

#include <FastLED.h>

// How many leds in your strip?
#define NUM_LEDS1 56
#define NUM_LEDS2 50

// For led chips like Neopixels, which have a data line, ground, and power, you just
// need to define DATA_PIN.  For led chipsets that are SPI based (four wires - data, clock,
// ground, and power), like the LPD8806, define both DATA_PIN and CLOCK_PIN
#define DATA_PIN1 D10
#define DATA_PIN2 D2
#define HALL_SENSOR D0

int BPM = 70;

// Define the array of leds
CRGB leds1[NUM_LEDS1];
CRGB leds2[NUM_LEDS2];

void setup() {
  Serial.begin(115200);
  Serial.println("resetting");
  FastLED.addLeds<WS2812, DATA_PIN1, GRB>(leds1, NUM_LEDS1);
  FastLED.addLeds<WS2812, DATA_PIN2, GRB>(leds2, NUM_LEDS2);
  FastLED.setBrightness(84);
  pinMode(HALL_SENSOR, INPUT_PULLUP);

  WiFi.mode(WIFI_STA);
  // Init ESP-NOW
  if (esp_now_init() != ESP_OK) {
    Serial.println("Error initializing ESP-NOW");
    return;
  }
  // Register for a callback function to receive data
  esp_now_register_recv_cb(OnDataRecv);

}

void fadeall1() {
  for (int i = 0; i < NUM_LEDS1; i++) { leds1[i].nscale8(230); }
}

void fadeall2() {
  for (int i = 0; i < NUM_LEDS2; i++) { leds2[i].nscale8(230); }
}

void loop() {
  // Pulse rate: 60 pulses per minute (1 pulse per second)
  float delayTimeR = (((60.0/BPM)*1000.0) / (NUM_LEDS1));  // Delay time in milliseconds for each LED;
  float delayTimeL = (((60.0/BPM)*1000.0) / (NUM_LEDS2));  // Delay time in milliseconds for each LED;
  Serial.println(BPM);
  Serial.println(BPM);
  // First slide the LED in one direction for blue LEDs
  for (int i = 0; i < NUM_LEDS1; i++) {
    if (digitalRead(HALL_SENSOR) && i>11) {
      leds1[i] = CRGB::Purple;
    }
    else{
      leds1[i] = CRGB::Blue;
    }
    FastLED.show();
    fadeall1();
    fadeall2();
    delay(delayTimeR);
  }
  //delay(500);

  //First slide the LED in one direction for red LEDs
  for (int i = 0; i < NUM_LEDS2; i++) {
    leds2[i] = CRGB::Red;
    FastLED.show();
    fadeall2();
    fadeall1();
    delay(delayTimeL);
  }
}

void OnDataRecv(const esp_now_recv_info *info, const uint8_t *incomingData, int len) {
  memcpy(&myData, incomingData, sizeof(myData));
  Serial.print("Bytes received: ");
  Serial.println(len);
  Serial.print("Received value: ");
  BPM = myData.value;
  Serial.println(BPM);
}