import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.ActivityInfo;
import android.graphics.Color;
import android.os.CountDownTimer;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity{

    TextView textViewMAIN;
    TextView textView_N;
    Boolean true_or_false;
    private TextView mTimer;
    private CountDownTimer timer;
    int count = 0;
    int timeMillisSum = 16000;
    int delay = 1000;
    int best_count = 0;
    String[] text = {"Красный", "Синий", "Зелёный", "Чёрный", "Белый", "Жёлтый", "Серый"};
    int[] color = {Color.RED, Color.BLUE, Color.GREEN, Color.BLACK, Color.WHITE, Color.YELLOW, Color.GRAY};


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

        textViewMAIN = findViewById(R.id.textViewMAIN);
        textView_N = findViewById(R.id.textView_N);
        mTimer = (TextView) findViewById(R.id.tv);
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

        setTextAndColor();


        timer = new Timer(timeMillisSum, delay);
        timer.start();
    }

    void loadText(){
        SharedPreferences settings = getSharedPreferences ("count", MODE_PRIVATE);
        best_count = settings.getInt ("count", 0);
    }

    void saveText() {
        SharedPreferences sharedPreferences = getSharedPreferences ("count", MODE_PRIVATE);
        SharedPreferences.Editor editor = sharedPreferences.edit();
        editor.putInt("count", count);
        editor.apply();
    }

    public void setTextAndColor(){
        int a = (int) Math.floor(Math.random() * 2);

        int b = (int) Math.floor(Math.random() * text.length);


        textViewMAIN.setText(text[b]);

        switch (a) {
            case 0:

                textViewMAIN.setTextColor(color[b]);
                true_or_false = true;
                break;
            case 1:
                int c = b;
                while (c == b) {
                    c = (int) Math.floor(Math.random() * text.length);
                }
                textViewMAIN.setTextColor(color[c]);
                true_or_false = false;
                break;

        }
    }

    public void buttonTrue(View view){
        if (true_or_false){
            count++;
            textView_N.setText(String.valueOf(count));
        }else{
            onFail();
        }
        setTextAndColor();
    }

    private void onFail() {
        timer.cancel();
        timeMillisSum -= 1000;
        timer = new Timer(timeMillisSum, delay);
        timer.start();
        if(!(count <= 0)) {
            count--;
        }

        textView_N.setText(String.valueOf(count));
    }

    public void buttonFalse(View view){
        if (!true_or_false){
            count++;
            textView_N.setText(String.valueOf(count));
        } else {
            onFail();
        }
        setTextAndColor();
    }

    public class Timer extends CountDownTimer {
        public Timer(long timeMillisSum, long delay) {
            super(timeMillisSum, delay);
        }

        public void onTick(long millisUntilFinished) {
            timeMillisSum -= 1000;
            mTimer.setText("Осталось: "
                    + millisUntilFinished / 1000);
        }
        public void onFinish() {

            AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
            builder.setTitle("Время истекло!")
                    .setMessage("Ваш счёт:" + count)
                    .setCancelable(false)
                    .setNegativeButton("Понял",
                            new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog, int id) {
                                    if (count > best_count){
                                        saveText ();
                                    }
                                    Intent intent = new Intent(MainActivity.this, Main2Activity.class);
                                    intent.putExtra("myIntVariableName", count);

                                    startActivity(intent);
                                }
                            });
            AlertDialog alert = builder.create();
            alert.show();
        }
    }

}