#include <SevSeg.h>
#include <Keypad.h>
#include <IniFile.h>
#include <SD.h>


SevSeg Sveg;



static int result;
int password = 1;


const byte rows = 4;
const byte cols = 3;

byte rowPins[rows] = {A15, A14, A13, A12};

byte colPins[cols] = {A11, A10, A9};

char keys[rows][cols] = {
  {'1', '2', '3'},
  {'4', '5', '6'},
  {'7', '8', '9'},
  {'*', '0', '#'}
};

Keypad KP(*keys, rowPins, colPins, rows, cols);





void setup() {
  Serial.begin(115200);
  SD.begin();
  IniFile ini("\settings.txt");
  const size_t bufLen = 100;
  char buf[bufLen];
  if (ini.open() && ini.validate(buf, bufLen)) {

    ini.getValue("my_password", "password", buf, bufLen, password);
    ini.close();
  }
  Serial.println(password);
  byte hardwareConfig = COMMON_CATHODE;
  byte numDigits = 4;
  byte digitPins[] = {19, 18, 17, 20};
  byte segmentPins[] = {2, 3, 4, 5, 6, 7, 8, 9};
  bool resistorsOnSegments = true;
  bool updateWithDelays = false;
  bool leadingZeros = false;
  bool disableDecPoint = false;


  Sveg.begin(hardwareConfig, numDigits, digitPins,
             segmentPins, resistorsOnSegments,
             updateWithDelays, leadingZeros,
             disableDecPoint);
  Sveg.blank();


}



void loop() {
  if (Serial.available()) {
    byte k = Serial.read();
    Serial.println(k);

  }

  byte key = KP.getKey();

  int num_digits = (int)log10(result) + 1;

  if (num_digits == 4) {
    if (result == password) {
      Sveg.blank();
      Sveg.setChars("Yeah");
    } else {
      Sveg.blank();
      Sveg.setChars("No");
    }
    result = 0;
  }

  if (key != NO_KEY) {
    if (key >= '0' && key <= '9') {

      result = result * 10 + (key - '0');
      Sveg.setNumber(result);

    } else {
      switch (key) {
        case '*': Sveg.blank();
      }
    }

  }

  Sveg.refreshDisplay();

}