#include <LiquidCrystal.h>
#include <Keypad.h>
#include "pitches.h"

#define BLUE 11
#define GREEN 12
#define RED 13

LiquidCrystal lcd(5, 6, 7, 8, 9, 10);
const byte ROWS = 4; //four rows
const byte COLS = 4; //four columns
int  sensor = 0;
int pump = 23;
//define the cymbols on the buttons of the keypads
/*char hexaKeys[ROWS][COLS] = {
  {'1','2','3','A'},
  {'4','5','6','B'},
  {'7','8','9','C'},
  {'*','0','#','D'}
};
*/
char hexaKeys[ROWS][COLS] = {
  {'D','C','B','A'},
  {'#','9','6','3'},
  {'0','8','5','2'},
  {'*','7','4','1'}
};
byte rowPins[ROWS] = {53, 52, 51, 50}; //connect to the row pinouts of the keypad
byte colPins[COLS] = {49, 48, 47, 46}; //connect to the column pinouts of the keypad
int i;
String code;
boolean pas = false;
String password = "1234";
int redValue;
int greenValue;
int blueValue;
//initialize an instance of class NewKeypad
Keypad customKeypad = Keypad( makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);
void setup() {
  // set up the LCD's number of columns and rows:

  // pinMode (7, INPUT);
// pinMode (A0, INPUT);
//pinMode (pumpOn, OUTPUT);
pinMode (sensor, INPUT);
pinMode (pump, OUTPUT);
digitalWrite(pump, LOW);
 pinMode(RED, OUTPUT);
pinMode(GREEN, OUTPUT);
pinMode(BLUE, OUTPUT);
digitalWrite(RED, HIGH);
digitalWrite(GREEN, LOW);
digitalWrite(BLUE, LOW);
 Serial.begin(9600);
   i = 0;
  lcd.begin(16, 2);
  lcd.print("Password:");
  code = "";
}

void loop() {
  char customKey = customKeypad.getKey();
        led(255, 0, 40);

  if(!pas){
  Serial.println("test");
    if (customKey){
      if(customKey == 'A'){

        tone(22, NOTE_C5, 400);
        if(code == password){
          tone(22, NOTE_B5, 600);
          tone(22, NOTE_C5, 600);
          led(0, 0, 255);
           lcd.clear();
          lcd.setCursor(0, 0);
          lcd.print("Zugriff");
          lcd.setCursor(0, 1);
          lcd.print("gewaehrt!");
          delay(2000);
          led(0, 0, 0);

          lcd.clear();
          lcd.setCursor(0, 0);
          lcd.print("Code:");
          pas = true;
          i=0;
          code="";
      }else{
        code = "";
        i=0;
        lcd.clear();
        lcd.print("Falsches");
        lcd.setCursor(0, 1);
        lcd.print("Password");
        led(255, 0, 0);
        tone(22, NOTE_B5, 600);
        delay(2000);
        lcd.clear();
        lcd.print("Password:");
      }
    }else if(customKey == 'C'){
      if(i != 0){
        i--;
        tone(22, NOTE_C5, 400);
         lcd.setCursor(i, 1);
         lcd.print(" ");
         char copy[code.length()];
        code.toCharArray(copy, code.length());
        code = "";
        for(int z = 0; z<sizeof(copy)-1; z++){
          code = code+copy[z];
        }
        }
    }else if(customKey == 'B'){

      if(i != 0){
        i = 0;
        tone(22, NOTE_C5, 400);
         char copy[code.length()];
        code.toCharArray(copy, code.length());
        code = "";
        for(int z = 0; z<sizeof(copy); z++){
                   lcd.setCursor(z, 1);
                    lcd.print(" ");

        }
        }


    }else{

           tone(22, NOTE_C5, 400);
           lcd.setCursor(i, 1);
     lcd.print("#");
     code = code+customKey;
     i++;
    }

 }
  }else{

    int prozent = 100- analogRead(sensor)/10.2;
    Serial.println(prozent);
    if(prozent <= 70){
      digitalWrite(pump, HIGH);
      Serial.println("motor an");
      delay(2000);
            Serial.println("motor aus");
      digitalWrite(pump, LOW);
            delay(2000);
    }
  if (customKey){

                  tone(22, NOTE_C5, 400);
    if(i!=0 && customKey == 'C'){
      i--;
      lcd.setCursor(i, 1);
      lcd.print(" ");
      char copy[code.length()];
        code.toCharArray(copy, code.length());
        code = "";
        for(int z = 0; z<sizeof(copy)-1; z++){
          code = code+copy[z];
        }
    }else if(customKey == 'D'){
      pas = false;
      lcd.clear();
      led(255, 0, 0);
      lcd.print("Abgemeldet!");
      delay(2000);
      lcd.clear();
      lcd.print("Password:");
      i=0;
      code="";
    }else{

      lcd.setCursor(i, 1);
     lcd.print(customKey);
     code = code+customKey;
          i++;
    }
  }

  }

  /*int istTrocken = digitalRead(11); // Pin 11 auslesen -> in Variable istTrocken
 int feuchtigkeit = analogRead(A0); // Pin A0 auslesen -> in Variable feuchtigkeit
 Serial.print("istTrocken: "); // Variablenname für Übersichtlichkeit im Serial Monitor
 Serial.println(istTrocken); // Wert von "istTrocken" ausgeben
 Serial.print("feuchtigkeit: "); // Variablenname für Übersichtlichkeit im Serial Monitor
 Serial.println(feuchtigkeit);
  //delay(1000);
  /*int istTrocken = digitalRead(52);
 int feuchtigkeit = analogRead(A0);
 Serial.print("istTrocken: ");
 Serial.println(istTrocken);
 Serial.print("feuchtigkeit: ");
 Serial.println(feuchtigkeit);
 delay(1000);
*/
}

void led(int red, int blue, int green){
  analogWrite(RED, red);
  analogWrite(GREEN, green);
  analogWrite(BLUE, blue);
}