private EditText editTextName;
    private EditText editTextPassword;
    private EditText editTextPhoneNumber;
    private EditText editTextKey;
    private CheckBox checkBoxIsParent;
    private CheckBox checkBoxIsFirstFamilyMember;
    private TextView textBoxFamilyKey;
    private Button buttonSignUp;

    private DatabaseReference databaseUsers;

    private List<User> userList;

    private String currentFamilyKey;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_sign_up);

        buttonSignUp = (Button) findViewById(R.id.buttonSignUp);

        databaseUsers = FirebaseDatabase.getInstance().getReference("Users");

        editTextName = (EditText) findViewById(R.id.editTextName);
        editTextPassword = (EditText) findViewById(R.id.editTextPassword);
        editTextPhoneNumber = (EditText) findViewById(R.id.editTextPhone);
        editTextKey = (EditText)findViewById(R.id.editTextKey) ;

        checkBoxIsParent = (CheckBox) findViewById(R.id.checkBoxIsParent);
        checkBoxIsFirstFamilyMember = (CheckBox) findViewById(R.id.checkBoxIsCreatingFamily);

        textBoxFamilyKey = (TextView)findViewById(R.id.familyKey);

        currentFamilyKey = generateKey();

        checkBoxIsParent.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if(checkBoxIsParent.isChecked()){;
                checkBoxIsFirstFamilyMember.setChecked(false);
                checkBoxIsFirstFamilyMember.setVisibility(checkBoxIsFirstFamilyMember.VISIBLE);
                editTextKey.setVisibility(editTextKey.VISIBLE);
            }
            else{
                    checkBoxIsFirstFamilyMember.setVisibility(checkBoxIsFirstFamilyMember.INVISIBLE);
                    editTextKey.setVisibility(editTextKey.VISIBLE);
                    textBoxFamilyKey.setVisibility(textBoxFamilyKey.INVISIBLE);
                }
        }});

        checkBoxIsFirstFamilyMember.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if(checkBoxIsFirstFamilyMember.isChecked()){
                    textBoxFamilyKey.setText("Your family key is: " + currentFamilyKey);
                    textBoxFamilyKey.setVisibility(textBoxFamilyKey.VISIBLE);
                    editTextKey.setVisibility(editTextKey.INVISIBLE);
                }
                else{
                    textBoxFamilyKey.setVisibility(textBoxFamilyKey.INVISIBLE);
                    editTextKey.setVisibility(editTextKey.VISIBLE);
                }
            }
        });

        userList = new ArrayList<>();

        buttonSignUp.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                addUser();
                goToLogIn();
            }
        });
    }

//    @Override
//    protected void onStart() {
//        super.onStart();
//
//        databaseUsers.addValueEventListener(new ValueEventListener() {
//            @Override
//            public void onDataChange(DataSnapshot dataSnapshot) {
//                userList.clear();
//                for (DataSnapshot userSnapshot :  dataSnapshot.getChildren())
//                {
//                    User user = userSnapshot.getValue(User.class);
//                    userList.add(user);
//                    Log.i("YO", userList.get(0).getCredentials());
//                }
//            }
//
//            @Override
//            public void onCancelled(DatabaseError databaseError) {
//
//            }
//        });
//    }

    private void addUser()
    {
        String name = editTextName.getText().toString().trim();
        String password = editTextPassword.getText().toString().trim();
        String phoneNumber = editTextPhoneNumber.getText().toString().trim();
        boolean isParent = checkBoxIsParent.isChecked();
        boolean isFirstFamilyMember = checkBoxIsFirstFamilyMember.isChecked();

        if (!TextUtils.isEmpty(name) || !TextUtils.isEmpty(password) || !TextUtils.isEmpty(phoneNumber))
        {

            User user = new User(name, password, phoneNumber, isParent, isFirstFamilyMember, currentFamilyKey, 0, 0);
            String id = databaseUsers.push().getKey();


            if (!isFirstFamilyMember)
            {
                String newFamilyKey = editTextKey.getText().toString().trim();
                user.setFamilyKey(newFamilyKey);

                databaseUsers.child(id).setValue(user);

            }
            else
            {
                Toast.makeText(this, "User created", Toast.LENGTH_LONG).show();
                databaseUsers.child(id).setValue(user);
            }


        }

        else
        {
            Toast.makeText(this, "Please fill in all of the requested information.", Toast.LENGTH_LONG).show();
        }
    }

    private void goToLogIn()
    {
        Intent intent = new Intent(this, LogInActivity.class);
        startActivity(intent);
    }

    private String generateKey(){
        int familyKey = 0;
        Random rand = new Random();
        familyKey = rand.nextInt(100000000);

        return Integer.toString(familyKey);
    }
}