#include <WiFi.h>
#include <WiFiUdp.h>
#include <NTPClient.h>
#include <Adafruit_NeoPixel.h>

#define NUMPIXELS       110
#define LEDPIN          21
#define MINUTELEDPIN    22
#define RED             30
#define GREEN           23
#define BLUE            230

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

WiFiUDP ntpUDP;
const long utcOffsetInSeconds = 7200; // Korrektur für Zeitzone
NTPClient timeClient(ntpUDP, "pool.ntp.org", utcOffsetInSeconds, 60000);

Adafruit_NeoPixel LEDQlockTwo = Adafruit_NeoPixel(NUMPIXELS, LEDPIN, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel MinuteLEDS = Adafruit_NeoPixel(4, MINUTELEDPIN, NEO_GRB + NEO_KHZ800);


const int ledMap[10][11] = {
  {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10},
  {21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11},
  {22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32},
  {43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33},
  {44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54},
  {65, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55},
  {66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76},
  {87, 86, 85, 84, 83, 82, 81, 80, 79, 78, 77},
  {88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98},
  {109, 108, 107, 106, 105, 104, 103, 102, 101, 100, 99}
};

const int minuteLedMap[4] = {0, 1, 3, 2};

int currentHour = 0;
int currentMinute = 0;

// Funktion um alle Pixel zu leeren
void clearAllPixels() {
  for (int i = 0; i < NUMPIXELS; i++) {
    LEDQlockTwo.setPixelColor(i, LEDQlockTwo.Color(0, 0, 0));
  }
  LEDQlockTwo.show();
}

// Funktion um einzelne Wörter aufleuchten zu lassen
void lightUpWord(int row, int startCol, int length) {
  for (int i = 0; i < length; i++) {
    LEDQlockTwo.setPixelColor(ledMap[row][startCol + i], LEDQlockTwo.Color(RED, GREEN, BLUE)); // Farbe anpassen
  }
}

void singleMinutes(int minute) {
    int onesPlace = minute % 10;

    // Überprüfe den Wert der Einerstelle
    if (onesPlace >= 1 && onesPlace <= 4) {
        for(int i = 0; i < onesPlace; i++){ // MinutenLEDS je nach Einerstelle angesteuert
            MinuteLEDS.setPixelColor(minuteLedMap[i], MinuteLEDS.Color(RED, GREEN, BLUE));
        }        
        MinuteLEDS.show();
    }
    else if (onesPlace >= 6 && onesPlace <= 9) {
        for(int i = 0; i < onesPlace; i++){ // MinutenLEDS je nach Einerstelle angesteuert
            MinuteLEDS.setPixelColor(minuteLedMap[i-5], MinuteLEDS.Color(RED, GREEN, BLUE));
        }
        MinuteLEDS.show();
    }
    else{
        for(int i = 0; i < 4; i++){
            MinuteLEDS.setPixelColor(i, MinuteLEDS.Color(0, 0, 0));
        }
        MinuteLEDS.show();
    }
}

void displayTime(int hour, int minute) {
  clearAllPixels();

  // Immer leuchtende Wörter
  lightUpWord(0, 0, 2);  // "ES"
  lightUpWord(0, 3, 3);  // "IST"

  // Zeitanzeige
  if (minute >= 5 && minute < 10) {
    lightUpWord(0, 7, 4);  // "FÜNF"
    lightUpWord(3, 7, 4);  // "NACH"
  } else if (minute >= 10 && minute < 15) {
    lightUpWord(1, 0, 4);  // "ZEHN"
    lightUpWord(3, 7, 4);  // "NACH"
  } else if (minute >= 15 && minute < 20) {
    lightUpWord(2, 4, 7);  // "VIERTEL"
    lightUpWord(3, 7, 4);  // "NACH"
  } else if (minute >= 20 && minute < 25) {
    lightUpWord(1, 4, 7);  // "ZWANZIG"
    lightUpWord(3, 7, 4);  // "NACH"
  } else if (minute >= 25 && minute < 30) {
    lightUpWord(0, 7, 4);  // "FÜNF"
    lightUpWord(3, 0, 3);  // "VOR"
    lightUpWord(4, 0, 4);  // "HALB"
    hour++;
  } else if (minute >= 30 && minute < 35) {
    lightUpWord(4, 0, 4);  // "HALB"
    hour++;
  } else if (minute >= 35 && minute < 40) {
    lightUpWord(0, 7, 4);  // "FÜNF"
    lightUpWord(3, 7, 4);  // "NACH"
    lightUpWord(4, 0, 4);  // "HALB"
    hour++;
  } else if (minute >= 40 && minute < 45) {
    lightUpWord(1, 4, 7);  // "ZWANZIG"
    lightUpWord(3, 0, 3);  // "VOR"
    hour++;
  } else if (minute >= 45 && minute < 50) {
    lightUpWord(2, 4, 7);  // "VIERTEL"
    lightUpWord(3, 0, 3);  // "VOR"
    hour++;
  } else if (minute >= 50 && minute < 55) {
    lightUpWord(1, 0, 4);  // "ZEHN"
    lightUpWord(3, 0, 3);  // "VOR"
    hour++;
  } else if (minute >= 55 && minute <=59) {
    lightUpWord(0, 7, 4);  // "FÜNF"
    lightUpWord(3, 0, 3);  // "VOR"
    hour++;
  }
  singleMinutes(minute); // Steuert die Minuten LEDS an, z.B. bei 5.04 Uhr leuchten alle 4 weitere LEDS

  // Stunden
  switch (hour) {
    case 0: lightUpWord(8, 6, 5); break;  // "ZWÖLF"
    case 1: lightUpWord(5, 0, 3); break;  // "EIN"
    case 2: lightUpWord(5, 7, 4); break;  // "ZWEI"
    case 3: lightUpWord(6, 0, 4); break;  // "DREI"
    case 4: lightUpWord(6, 7, 4); break;  // "VIER"
    case 5: lightUpWord(4, 7, 4); break;  // "FÜNF"
    case 6: lightUpWord(7, 0, 5); break;  // "SECHS"
    case 7: lightUpWord(8, 0, 6); break;  // "SIEBEN"
    case 8: lightUpWord(7, 7, 4); break;  // "ACHT"
    case 9: lightUpWord(9, 3, 4); break;  // "NEUN"
    case 10: lightUpWord(9, 0, 4); break;  // "ZEHN"
    case 11: lightUpWord(4, 5, 3); break;  // "ELF"
    case 12: lightUpWord(8, 6, 5); break;  // "ZWÖLF"
    case 13: lightUpWord(6, 0, 4); lightUpWord(9, 0, 4); break; // "DREI ZEHN"
    case 14: lightUpWord(6, 7, 4); lightUpWord(9, 0, 4); break; // "VIER ZEHN"
    case 15: lightUpWord(4, 7, 4); lightUpWord(9, 0, 4); break; // "FÜNF ZEHN"
    case 16: lightUpWord(7, 0, 4); lightUpWord(9, 0, 4); break; // "SECH ZEHN"
    case 17: lightUpWord(8, 0, 4); lightUpWord(9, 0, 4); break; // "SIEB ZEHN"
    case 18: lightUpWord(7, 7, 4); lightUpWord(9, 0, 4); break; // "ACHT ZEHN"
    case 19: lightUpWord(8, 0, 6); break;  // "SIEBEN"
    case 20: lightUpWord(7, 7, 4); break;  // "ACHT"
    case 21: lightUpWord(9, 3, 4); break;  // "NEUN"
    case 22: lightUpWord(9, 0, 4); break;  // "ZEHN"
    case 23: lightUpWord(4, 5, 3); break;  // "ELF"
    case 24: lightUpWord(8, 6, 5); break;  // "ZWÖLF" - Wird für Ausnahmefälle, wie 23.30 Uhr gebraucht
  }

  // "UHR" nur anzeigen, wenn Minute == 0
  if (minute < 5) {
    lightUpWord(9, 8, 3);  // "UHR"
  }

  LEDQlockTwo.show();
}

// DEBUGGING
void inputTime() {
  Serial.println("Bitte geben Sie die Stunde ein (0-23): ");
  while (Serial.available() == 0) {}  // Warten auf Eingabe
  currentHour = Serial.parseInt();

  Serial.println("Bitte geben Sie die Minute ein (0-59): ");
  while (Serial.available() == 0) {}  // Warten auf Eingabe
  currentMinute = Serial.parseInt();

  Serial.printf("Eingegebene Uhrzeit: %02d:%02d\n", currentHour, currentMinute);
}
// DEBUGGING

void setup() {
  Serial.begin(115200);
  LEDQlockTwo.begin();
  LEDQlockTwo.setBrightness(255);
  MinuteLEDS.begin();
  MinuteLEDS.setBrightness(255);
  WiFi.begin(ssid, password);

// WLAN verbindet
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

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

  timeClient.begin();
}

int previousMinute;

void loop() {
  timeClient.update();

  int currentHour = timeClient.getHours();
  int currentMinute = timeClient.getMinutes();
  
  if(previousMinute != currentMinute){
    displayTime(currentHour, currentMinute);
    previousMinute = currentMinute;
  } 

  

  delay(1000);  // Update jede Sekunde
}


// Animation
void startUpAnimation(int num){
  switch (num)
  {
  case 1: 
    for(int x; x<NUMPIXELS; x++){
        LEDQlockTwo.setPixelColor(x, LEDQlockTwo.Color(RED, GREEN, BLUE)); // Farbe anpassen
        LEDQlockTwo.show();
        delay(5);
    }
    for (int i= NUMPIXELS; i >= 0 ; i--)
    {
        LEDQlockTwo.setPixelColor(i, LEDQlockTwo.Color(0, 0, 0)); // Farbe anpassen
        LEDQlockTwo.show();
        delay(5);
    }
  break;

  case 2:  break;
  }
}