#include <Adafruit_NeoPixel.h>
#include <math.h>
#include <WiFi.h>
#include <Wire.h>

#define NTP_SERVER     "pool.ntp.org"
#define UTC_OFFSET     0
#define UTC_OFFSET_DST 0

#define PIN_WS2812B 26  // The ESP32 pin GPIO16 connected to WS2812B
#define NUM_PIXELS 8   // The number of LEDs (pixels) on WS2812B LED strip

int area_num = 3, area1 = 8, area2 = 8, area3 = 12;

int horaActual = 0;
int minActual = 0;
int secActual = 0;

int horaDespertador = 7;
int minDespertador = 0;

int amanecerRGB[30][3] = {
  {10, 0, 30}, {20, 0, 50}, {30, 0, 70}, {40, 10, 90},
  {50, 20, 100}, {60, 30, 110}, {70, 40, 120}, {80, 50, 130},
  {90, 60, 140}, {100, 70, 150}, {110, 80, 130}, {120, 90, 110},
  {130, 100, 90}, {140, 110, 70}, {150, 120, 50}, {160, 130, 30},
  {170, 140, 20}, {180, 150, 10}, {190, 160, 0}, {200, 170, 0},
  {210, 180, 0}, {220, 190, 10}, {230, 200, 30}, {240, 210, 50},
  {250, 220, 70}, {255, 230, 90}, {255, 240, 120}, {255, 245, 150},
  {255, 250, 180}, {255, 255, 200}
};

int atardecerRGB[30][3] = {
  {255, 255, 200}, {255, 250, 180}, {255, 245, 150}, {255, 240, 120},
  {255, 230, 90}, {250, 220, 70}, {240, 210, 50}, {230, 200, 30},
  {220, 190, 10}, {210, 180, 0}, {200, 170, 0}, {190, 160, 0},
  {180, 150, 10}, {170, 140, 20}, {160, 130, 30}, {150, 80, 40},
  {160, 70, 50}, {170, 60, 60}, {180, 50, 50}, {190, 40, 40},
  {200, 30, 30}, {210, 20, 20}, {220, 15, 15}, {230, 10, 10},
  {240, 5, 5}, {200, 0, 0}, {150, 0, 0}, {100, 0, 0}, {50, 0, 0},
  {20, 0, 0}
};

Adafruit_NeoPixel ws2812b(NUM_PIXELS, PIN_WS2812B, NEO_GRB + NEO_KHZ800);

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

  pinMode (PIN_WS2812B, OUTPUT);
  ws2812b.begin();  // initialize WS2812B strip object (REQUIRED)
  ws2812b.clear();

  WiFi.begin("Wokwi-GUEST", "", 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(250);
    ws2812b.setPixelColor(0, ws2812b.Color(0, 255, 0));
    ws2812b.show();
  }

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  ws2812b.setPixelColor(1, ws2812b.Color(0, 255, 0)); //Conectado
  ws2812b.setPixelColor(2, ws2812b.Color(0, 255, 0)); //Actualizando hora
  ws2812b.show();

  configTime(UTC_OFFSET, UTC_OFFSET_DST, NTP_SERVER);
  delay(1000);
}

void loop() {
  localTime();

  ws2812b.clear();  // set all pixel colors to 'off'. It only takes effect if pixels.show() is called
  ws2812b.show();
  delay(2000);

  if (secActual < 29) {
    for (int i = 0; i < 30; i++) {
    // Establecer color RGB para los LEDs
    for (int pixel = 0; pixel < area1; pixel++) {         // for each pixel
      ws2812b.setPixelColor(pixel, ws2812b.Color(atardecerRGB[i][0], atardecerRGB[i][1], atardecerRGB[i][2]));  // it only takes effect if pixels.show() is called
    }
    ws2812b.show();  // Actualizar los LEDs

    delay(100);  // Esperar un minuto (60000 ms)
  }
  } else {
    for (int pixel = 0; pixel < area1; pixel++) {         // for each pixel
      ws2812b.setPixelColor(pixel, ws2812b.Color(0, 255, 0));
    }
    ws2812b.show();  // Actualizar los LEDs
  }
  delay(1000);
  }

  

void localTime() {
  struct tm timeinfo;

  if (!getLocalTime(&timeinfo)) {
    Serial.println("Connection Err");
    return;
  }

  char buffer[3];  // Para almacenar la hora como texto de 2 caracteres + terminador nulo
  strftime(buffer, sizeof(buffer), "%H", &timeinfo);  // Obtener la hora como cadena en formato HH
  horaActual = atoi(buffer);

  strftime(buffer, sizeof(buffer), "%M", &timeinfo);  // Obtener la hora como cadena en formato HH
  minActual = atoi(buffer);

  strftime(buffer, sizeof(buffer), "%S", &timeinfo);  // Obtener la hora como cadena en formato HH
  secActual = atoi(buffer);

  Serial.println(&timeinfo, "%H:%M:%S");

  Serial.println(&timeinfo, "%d/%m/%Y   %Z");
}