#include <Wire.h>
#include "RTClib.h"
#include <LedControl.h>

RTC_DS1307 rtc;
LedControl lc(PB5, PB6, PB7, 1);

// Pins
#define BTN1 PA0
#define BTN2 PA1
#define LED1 PA2
#define LED2 PA3

int currentSymbol = 0; // 0 = none, 1 = smile, 2 = heart

byte smile[8] = {
  B00111100,
  B01000010,
  B10100101,
  B10000001,
  B10100101,
  B10011001,
  B01000010,
  B00111100
};

byte heart[8] = {
  B00000000,
  B01100110,
  B11111111,
  B11111111,
  B11111111,
  B01111110,
  B00111100,
  B00011000
};

void setup() {
  pinMode(BTN1, INPUT_PULLUP);
  pinMode(BTN2, INPUT_PULLUP);
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);

  lc.shutdown(0, false);
  lc.setIntensity(0, 8);
  lc.clearDisplay(0);

  Wire.begin();
  if (!rtc.begin()) {
    while (1); // halt if RTC not found
  }

  // Uncomment to set the RTC time
  // rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));

  digitalWrite(LED1, LOW);
  digitalWrite(LED2, LOW);
}

void loop() {
  DateTime now = rtc.now();

  // Check schedule only if no manual symbol active
  if (currentSymbol == 0) {
    if (now.hour() == 10 && now.minute() < 30) {
      activateSymbol(1);
    } else if (now.hour() == 15 && now.minute() < 30) {
      activateSymbol(2);
    }
  }

  // Button 1 pressed
  if (digitalRead(BTN1) == LOW) {
    if (currentSymbol == 1) {
      clearSymbol();
    } else {
      activateSymbol(1);
    }
    delay(200); // debounce
  }

  // Button 2 pressed
  if (digitalRead(BTN2) == LOW) {
    if (currentSymbol == 2) {
      clearSymbol();
    } else {
      activateSymbol(2);
    }
    delay(200); // debounce
  }
}

void activateSymbol(int symbol) {
  lc.clearDisplay(0);
  if (symbol == 1) {
    showSymbol(smile);
    digitalWrite(LED1, HIGH);
    digitalWrite(LED2, LOW);
  } else if (symbol == 2) {
    showSymbol(heart);
    digitalWrite(LED2, HIGH);
    digitalWrite(LED1, LOW);
  }
  currentSymbol = symbol;
}

void clearSymbol() {
  lc.clearDisplay(0);
  digitalWrite(LED1, LOW);
  digitalWrite(LED2, LOW);
  currentSymbol = 0;
}

void showSymbol(byte pattern[8]) {
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, pattern[i]);
  }
}




// #include <Wire.h>
// #include "RTClib.h"
// #include <LedControl.h>

// RTC_DS1307 rtc;
// // 4 devices chained: DataIn=PB5, CLK=PB6, LOAD=PB7
// LedControl lc(PB5, PB6, PB7, 4);

// // Pins
// #define BTN1 PA0
// #define BTN2 PA1
// #define LED1 PA2
// #define LED2 PA3

// bool leftActive = false;
// bool rightActive = false;

// unsigned long lastLeftToggle = 0;
// unsigned long lastRightToggle = 0;

// byte smile[8] = {
//   B00111100,
//   B01000010,
//   B10100101,
//   B10000001,
//   B10100101,
//   B10011001,
//   B01000010,
//   B00111100
// };

// byte heart[8] = {
//   B00000000,
//   B01100110,
//   B11111111,
//   B11111111,
//   B11111111,
//   B01111110,
//   B00111100,
//   B00011000
// };

// void setup() {
//   pinMode(BTN1, INPUT_PULLUP);
//   pinMode(BTN2, INPUT_PULLUP);
//   pinMode(LED1, OUTPUT);
//   pinMode(LED2, OUTPUT);

//   for (int i = 0; i < 4; i++) {
//     lc.shutdown(i, false);
//     lc.setIntensity(i, 8);
//     lc.clearDisplay(i);
//   }

//   Wire.begin();
//   rtc.begin();
//   rtc.adjust(DateTime(F(__DATE__), F(__TIME__))); // Set RTC if needed

//   // Initially display both
//   showLeft(smile);
//   leftActive = true;
//   showRight(heart);
//   rightActive = true;

//   lastLeftToggle = millis();
//   lastRightToggle = millis();
// }

// void loop() {
//   unsigned long now = millis();

//   // -------- Automatic toggle --------
//   if (now - lastLeftToggle >= 30000) { // every 30 seconds
//     if (leftActive) clearLeft();
//     else showLeft(smile);
//     leftActive = !leftActive;
//     lastLeftToggle = now;
//   }

//   if (now - lastRightToggle >= 15000) { // every 15 seconds
//     if (rightActive) clearRight();
//     else showRight(heart);
//     rightActive = !rightActive;
//     lastRightToggle = now;
//   }

//   // -------- Manual control --------
//   if (digitalRead(BTN1) == LOW) {
//     if (leftActive) clearLeft();
//     else showLeft(smile);
//     leftActive = !leftActive;
//     lastLeftToggle = now; // reset timer after manual change
//     delay(200);
//   }

//   if (digitalRead(BTN2) == LOW) {
//     if (rightActive) clearRight();
//     else showRight(heart);
//     rightActive = !rightActive;
//     lastRightToggle = now; // reset timer after manual change
//     delay(200);
//   }
// }

// // -------- Display functions --------
// void showLeft(byte pattern[8]) {
//   for (int row = 0; row < 8; row++) {
//     lc.setRow(1, row, pattern[row]);
//     // lc.setRow(0, row, pattern[row]);
//   }
//   digitalWrite(LED1, HIGH);
// }

// void showRight(byte pattern[8]) {
//   for (int row = 0; row < 8; row++) {
//     // lc.setRow(2, row, pattern[row]);
//     lc.setRow(3, row, pattern[row]);
//   }
//   digitalWrite(LED2, HIGH);
// }

// void clearLeft() {
//   // lc.clearDisplay(0);
//   lc.clearDisplay(1);
//   digitalWrite(LED1, LOW);
// }

// void clearRight() {
//   // lc.clearDisplay(2);
//   lc.clearDisplay(3);
//   digitalWrite(LED2, LOW);
// }