// Header file includes
#include <MD_Parola.h>
#include <MD_MAX72xx.h>
#include <SPI.h>
#include <WiFi.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 16, 2);

//#define HARDWARE_TYPE MD_MAX72XX::FC16_HW
#define HARDWARE_TYPE MD_MAX72XX::PAROLA_HW
#define MAX_DEVICES  8 // Define the number of displays connected
#define CLK_PIN      18 // CLK or SCK
#define DATA_PIN     23 // DATA or MOSI
#define CS_PIN       5 // CS or SS
#define NTP_SERVER     "0.br.pool.ntp.org"
#define UTC_OFFSET     0
#define UTC_OFFSET_DST -10890

MD_Parola myDisplay = MD_Parola(HARDWARE_TYPE, CS_PIN, MAX_DEVICES);

void spinner() {
  static int8_t counter = 0;
  const char* glyphs = "\xa1\xa5\xdb";
  LCD.setCursor(15, 1);
  LCD.print(glyphs[counter++]);
  if (counter == strlen(glyphs)) {
    counter = 0;
  }
}

void printLocalTime() {
  struct tm timeinfo;
  if (!getLocalTime(&timeinfo)) {
    myDisplay.print("Connection Err");
    LCD.setCursor(0, 0);
    LCD.println("Connection Err");
    return;
  }
  LCD.setCursor(0, 0);
  LCD.println("LAB+ PROJETOS");
  LCD.setCursor(0, 1);
  LCD.println(&timeinfo, "%d/%m/%Y-%H:%M");
  myDisplay.setTextAlignment(PA_CENTER);
  myDisplay.print(&timeinfo, "%H:%M");
  delay(5000);
  myDisplay.print(&timeinfo, "%d/%m/%Y");
  delay(5000);
  myDisplay.print("Lab+ Projetos");
  delay(5000);
  loop();
}

void setup() {
  Serial.begin(115200);
  LCD.init();
  LCD.backlight();
  LCD.setCursor(0, 0);
  LCD.print("Connecting to ");
  LCD.setCursor(0, 1);
  LCD.print("WiFi ");

  WiFi.begin("Wokwi-GUEST", "", 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(250);
    spinner();
  }

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

  LCD.clear();
  LCD.setCursor(0, 0);
  LCD.println("Online");
  LCD.setCursor(0, 1);
  LCD.println("Updating time...");

  configTime(UTC_OFFSET, UTC_OFFSET_DST, NTP_SERVER);
  // Intialize the object:
  myDisplay.begin();
  // Set the intensity (brightness) of the display (0-15):
  myDisplay.setIntensity(15);
  // Clear the display:
  myDisplay.displayClear();
}

void loop() {
  printLocalTime();
  delay(250);
}