public class MainActivity extends AppCompatActivity {

Button b_ans1, b_ans2,b_ans3,b_ans4;
TextView question;
ImageView correctimage;
ImageView wrongimage;
List<MazeModel> list;
Random r = new Random();
ImageView iv_maze;
public Database database = new Database();
int turn =1;

@Override
protected void onCreate(Bundle savedInstanceState) {


    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);


    b_ans1 = findViewById(R.id.choice1);
    b_ans2 = findViewById(R.id.choice2);
    b_ans3 = findViewById(R.id.choice3);
    b_ans4 = findViewById(R.id.choice4);
    question = findViewById(R.id.question);
    correctimage = findViewById(R.id.correctview);
    wrongimage = findViewById(R.id.wrongview);
    iv_maze = (ImageView)findViewById(R.id.iv_maze);

    list = new ArrayList<>();

    for (int i = 0; i < database.mazes.length; i++) {
        list.add(new MazeModel(database.ansmap.get(i + 1)[0], database.mazes[i]));
    }

    Collections.shuffle(list);

    assignAnswer(turn);


    b_ans1.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View view) {
            question.setVisibility(View.INVISIBLE);
            b_ans1.setVisibility(View.INVISIBLE);
            b_ans2.setVisibility(View.INVISIBLE);
            b_ans3.setVisibility(View.INVISIBLE);
            b_ans4.setText("Next");
            if (b_ans1.getText().toString().equalsIgnoreCase(list.get(turn - 1).getPath())) {
                correctimage.setVisibility(View.VISIBLE);

            } else {
                wrongimage.setVisibility(View.VISIBLE);


            }


        }
    });

    b_ans2.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View view) {
            question.setVisibility(View.INVISIBLE);
            b_ans1.setVisibility(View.INVISIBLE);
            b_ans2.setVisibility(View.INVISIBLE);
            b_ans3.setVisibility(View.INVISIBLE);
            b_ans4.setText("Next");
            if (b_ans1.getText().toString().equalsIgnoreCase(list.get(turn - 1).getPath())) {
                correctimage.setVisibility(View.VISIBLE);

            } else {
                wrongimage.setVisibility(View.VISIBLE);


            }


        }
    });

    b_ans3.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View view) {
            question.setVisibility(View.INVISIBLE);
            b_ans1.setVisibility(View.INVISIBLE);
            b_ans2.setVisibility(View.INVISIBLE);
            b_ans3.setVisibility(View.INVISIBLE);
            b_ans4.setText("Next");
            if (b_ans1.getText().toString().equalsIgnoreCase(list.get(turn - 1).getPath())) {
                correctimage.setVisibility(View.VISIBLE);

            } else {
                wrongimage.setVisibility(View.VISIBLE);


            }


        }
    });

    b_ans4.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View view) {
            if (b_ans4.getText().toString().equals("Next")) {
                if (turn<list.size()){
                    turn++;
                    assignAnswer(turn);
                }
                else{
                    Toast.makeText(MainActivity.this,"Finished quiz, starting over",Toast.LENGTH_LONG).show();
                    turn = 1;
                    assignAnswer(turn);
                }

            }
            else{
                question.setVisibility(View.INVISIBLE);
                b_ans1.setVisibility(View.INVISIBLE);
                b_ans2.setVisibility(View.INVISIBLE);
                b_ans3.setVisibility(View.INVISIBLE);
                b_ans4.setText("Next");
                if (b_ans1.getText().toString().equalsIgnoreCase(list.get(turn - 1).getPath())) {
                    correctimage.setVisibility(View.VISIBLE);

                } else {
                    wrongimage.setVisibility(View.VISIBLE);


                }

            }



        }
    });
}




    private void assignAnswer(int number){





        Drawable d = getResources().getDrawable(list.get(number-1).getImage());

        iv_maze.setImageDrawable(d);
        Arrays.asList(database.mazes).indexOf(list.get(number-1).getPath())+1;


        int correctans = r.nextInt(4) +1;

        switch (correctans) {
            case 1:
                b_ans1.setText(database.ansmap.get(index)[0]);
                b_ans2.setText(database.ansmap.get(index)[1]);
                b_ans3.setText(database.ansmap.get(index)[2]);
                b_ans4.setText(database.ansmap.get(index)[3]);
                break;

            case 2:
                b_ans1.setText(database.ansmap.get(index)[1]);
                b_ans2.setText(database.ansmap.get(index)[0]);
                b_ans3.setText(database.ansmap.get(index)[2]);
                b_ans4.setText(database.ansmap.get(index)[3]);
                break;
            case 3:
                b_ans1.setText(database.ansmap.get(index)[2]);
                b_ans2.setText(database.ansmap.get(index)[1]);
                b_ans3.setText(database.ansmap.get(index)[0]);
                b_ans4.setText(database.ansmap.get(index)[3]);
                break;
            case 4:
                b_ans1.setText(database.ansmap.get(index)[3]);
                b_ans2.setText(database.ansmap.get(index)[1]);
                b_ans3.setText(database.ansmap.get(index)[2]);
                b_ans4.setText(database.ansmap.get(index)[0]);
                break;

        }


    }



}