#include <TFT_eSPI.h>
#include <SPI.h>
#include <Led.h>

TFT_eSPI tft = TFT_eSPI();

class LED {
  private:
    bool state;
    unsigned long previousMillis;
    int t_on;
    int t_off;

  public:
    LED(int on, int off) : t_on(on), t_off(off) {
      state = HIGH;
      previousMillis = 0;
    }

    void update(unsigned long currentMillis) {
      if (state == HIGH) {
        if (currentMillis - previousMillis >= t_on) {
          previousMillis = currentMillis;
          state = LOW;
        }
      } else {
        if (currentMillis - previousMillis >= t_off) {
          previousMillis = currentMillis;
          state = HIGH;
        }
      }
    }

    bool getState() {
      return state;
    }
};

Led led1(2000, 2000);
Led led2(1500, 500);
Led led3(800, 200);

// Arreglo de leds
Led led[3] = {
  led1, led2, led3
};

// Arreglo de colores
uint32_t color[3] = {TFT_RED, TFT_GREEN, TFT_BLUE};

// Arreglo de letras
char* text[3] = {"R", "G", "B"};

void setup() {

  Serial.begin(115200);
  Serial.println("INICIO:");

  // Configurando TFT
  tft.init();
  tft.setRotation(1);
  tft.fillScreen(TFT_BLACK);

  // Dibujando margenes y letras
  for (int i = 0; i < 3; i++) {

    // Dibujando el margen del LED
    tft.drawCircle(40 + i * 60, 33, 25, color[i]);

    // Dibujando la letra que representa el color del LED
    tft.setTextColor(color[i]);
    tft.setTextSize(2);
    tft.setCursor(40 + i * 60, 70);
    tft.println(text[i]);

  }
}

void loop() {

  // Actualizando millis
  unsigned long currentMillis = millis();
  for (int i = 0; i < 3; i++) {
    led[i].update(currentMillis);
  }
  // Actualizando imagen
  writeGraphMem();
  

  //Delay opcional para reducir el uso de CPU
  delay(20); 
}

void writeGraphMem() {
  for (int i = 0; i < 3; i++) {

    // Encedido y apagado de LED's
    if (led[i].getState() == HIGH) {
      // Encendido
      tft.fillCircle(40 + i * 60, 33, 18, color[i]);
    } else {
      // Apagado
      tft.fillCircle(40 + i * 60, 33, 18, TFT_BLACK);
    }

  }

}