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

// ---------- TOUCH PINS ----------
#define TOUCH1 1
#define TOUCH2 2
#define TOUCH3 3
#define TOUCH4 7
#define TOUCH5 8
#define TOUCH6 6

// ---------- RECEIVER MAC ----------
uint8_t receiverMAC[] = {0xE8, 0xF6, 0x0A, 0x8D, 0x16, 0xF8};   // CHANGE if needed

// ---------- THRESHOLDS ----------
int threshold[6] = {
  100000,   // sensor 1
  100000,   // sensor 2
  100000,   // sensor 3
  100000,   // sensor 4
  100000,   // sensor 5
  100000    // sensor 6
};

// ---------- STATES ----------
bool pressed[6] = {false,false,false,false,false,false};

void sendTouch(char c)
{
  esp_now_send(receiverMAC, (uint8_t*)&c, 1);
  Serial.printf("[SENDER] SENT: %c\n", c);
}

void setup()
{
  Serial.begin(115200);
  delay(1000);

  Serial.println("=== FINAL SENDER STARTING ===");

  WiFi.mode(WIFI_STA);

  if (esp_now_init() != ESP_OK) {
    Serial.println("ESP-NOW FAILED");
    return;
  }

  esp_now_peer_info_t peerInfo = {};
  memcpy(peerInfo.peer_addr, receiverMAC, 6);
  peerInfo.channel = 0;
  peerInfo.encrypt = false;

  esp_now_add_peer(&peerInfo);

  Serial.println("=== FINAL SENDER READY ===");
}

void loop()
{
  int val[6];

  val[0] = touchRead(TOUCH1);
  val[1] = touchRead(TOUCH2);
  val[2] = touchRead(TOUCH3);
  val[3] = touchRead(TOUCH4);
  val[4] = touchRead(TOUCH5);
  val[5] = touchRead(TOUCH6);

 Serial.printf(
    "T1:%d | T2:%d | T3:%d | T4:%d | T5:%d | T6:%d\n",
    val[0], val[1], val[2], val[3], val[4], val[5]
  );
  for (int i = 0; i < 6; i++)
  {
    // TOUCH DETECTED
    if (val[i] > threshold[i] && !pressed[i])
    {
      sendTouch('1' + i);
      pressed[i] = true;
    }

    // RELEASE DETECTED
    if (val[i] < threshold[i] - 20000)
    {
      pressed[i] = false;
    }
  }

  delay(100);
}