#include <MD_Parola.h>
#include <MD_MAX72xx.h>
#include <SPI.h>

#include <WiFi.h>
#include "time.h"
#include "sntp.h"

#define HARDWARE_TYPE MD_MAX72XX::PAROLA_HW
#define MAX_DEVICES 4
#define CLK_PIN   18
#define DATA_PIN  33
#define CS_PIN    5

// Hardware SPI connection
MD_Parola P = MD_Parola(HARDWARE_TYPE, CS_PIN, MAX_DEVICES);
// Arbitrary output pins
// MD_Parola P = MD_Parola(HARDWARE_TYPE, DATA_PIN, CLK_PIN, CS_PIN, MAX_DEVICES);

const char* ssid       = "Wokwi-GUEST";
const char* password   = "";

const char* ntpServer1 = "pool.ntp.org";
const char* ntpServer2 = "time.nist.gov";

const char* time_zone = "WIB-7";  // TimeZone rule for Europe/Rome including daylight adjustment rules (optional)

void printLocalTime()
{
  struct tm timeinfo;
  if (!getLocalTime(&timeinfo)) {
    Serial.println("No time available (yet)");
    return;
  }
  Serial.println(&timeinfo, "%A, %B %d %Y %H:%M:%S");
}

// Callback function (get's called when time adjusts via NTP)
void timeavailable(struct timeval *t)
{
  Serial.println("Got time adjustment from NTP!");
  printLocalTime();
}

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

  sntp_set_time_sync_notification_cb( timeavailable );
  sntp_servermode_dhcp(1);    // (optional)
  configTzTime(time_zone, ntpServer1, ntpServer2);

  //connect to WiFi
  Serial.printf("Connecting to %s ", ssid);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println(" CONNECTED");
}

void loop(void) {
  if (P.displayAnimate())
    P.displayText("Hello", PA_CENTER, P.getSpeed(), 1000, PA_SCROLL_DOWN, PA_SCROLL_DOWN);

  printLocalTime(); 
  delay(1000);
}