package dev.monta.myjournal;
import androidx.appcompat.app.AppCompatActivity;
import androidx.viewpager.widget.ViewPager;
import android.content.Intent;
import android.os.Bundle;
import android.text.Html;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;
    public class FirstStartOnly extends AppCompatActivity {
        private ViewPager mSlideViewPager;
        private LinearLayout mDotLayout;
        private TextView [] mDots;
        private  SliderAdapter sliderAdapter;
        private Button mNextBtn;
        private Button mBackBtn;
        private int mCurrentPage;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_first_start_only);
        //slaidi
        mSlideViewPager = (ViewPager) findViewById(R.id.slideViewPager);
        //punktu indikatori
        mDotLayout = (LinearLayout) findViewById(R.id.dotsLayout);
        //next poga
        mNextBtn = (Button) findViewById(R.id.nextbtn);
        //back poga
        mBackBtn = (Button) findViewById(R.id.backbtn);
        sliderAdapter = new SliderAdapter(this);
        //palaiz adapteri
        mSlideViewPager.setAdapter(sliderAdapter);
        addDotsIndicator(0);
        mSlideViewPager.addOnPageChangeListener(viewListener);
        //OnClickListeners pogam
        mNextBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                    mSlideViewPager.setCurrentItem(mCurrentPage + 1);
                //palaiz Home Activity ar finish pogu
                if(mCurrentPage + 1 == 5){
                    mNextBtn.setOnClickListener(new View.OnClickListener() {
                        @Override
                 public void onClick(View v) {
                        Intent intent = new Intent(FirstStartOnly.this, HomeActivity.class);
                     startActivity(intent);
                    }
                }
                );
                }
            }
        }
        );
        mBackBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mSlideViewPager.setCurrentItem(mCurrentPage - 1);
            }
        }
        );
    }
    //punktu indikators
    public void addDotsIndicator(int position){
        //5==tik punktinu
        mDots = new  TextView[5];
        //nonem ieprieksejo tadejadi punkti iet lidzi slaidiem
        mDotLayout.removeAllViews();
        for(int i = 0; i < mDots.length; i++){
           mDots[i] = new TextView(this);
           //define simbola kodu (aplitis)
           mDots[i].setText(Html.fromHtml("&#8226"));
           mDots[i].setTextSize(40);
           mDots[i].setTextColor(getResources().getColor(R.color.white));
            mDotLayout.addView(mDots[i]);
        }
        if (mDots.length>0){
            mDots[position].setTextColor(getResources().getColor(R.color.darkgreen2));
        }
    }
        ViewPager.OnPageChangeListener viewListener = new ViewPager.OnPageChangeListener() {
        @Override
       public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
       }
       @Override
       public void onPageSelected(int current_page) {
           addDotsIndicator(current_page);
           mCurrentPage = current_page;
           //pirmas lapas pogas
           if(current_page ==0){
               mNextBtn.setEnabled(true);
               mBackBtn.setEnabled(false);
               mBackBtn.setVisibility(View.INVISIBLE);
               mNextBtn.setText("Next");
               mBackBtn.setText("");
           }else if (current_page == mDots.length - 1){
               //pedejas lapas pogas
               mNextBtn.setEnabled(true);
               mBackBtn.setEnabled(true);
               mBackBtn.setVisibility(View.VISIBLE);
               mNextBtn.setText("Finish");
               mBackBtn.setText("Back");
           } else {
               //parejo lapu pogas
               mNextBtn.setEnabled(true);
               mBackBtn.setEnabled(true);
               mBackBtn.setVisibility(View.VISIBLE);
               mNextBtn.setText("Next");
               mBackBtn.setText("Back");
           }
       }
       @Override
       public void onPageScrollStateChanged(int state) {
       }
   };
    @Override
    public void finish() {
        super.finish();
        overridePendingTransition(R.anim.slide_in_left, R.anim.slide_out_right);
    }
}