package com.material.components.activity.article;

import android.app.Dialog;
import android.content.Context;
import android.graphics.PorterDuff;
import android.os.Bundle;
import androidx.viewpager.widget.PagerAdapter;
import androidx.viewpager.widget.ViewPager;
import androidx.appcompat.app.AppCompatActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.material.components.R;
import com.material.components.utils.Tools;

public class ArticleStepper extends AppCompatActivity {

    private static final int MAX_STEP = 4;

    private ViewPager viewPager;
    private MyViewPagerAdapter myViewPagerAdapter;

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

        // adding bottom dots
        bottomProgressDots(0);

        initComponent();

        Tools.setSystemBarColor(this, R.color.grey_5);
        Tools.setSystemBarLight(this);
    }

    private void bottomProgressDots(int current_index) {
        LinearLayout dotsLayout = (LinearLayout) findViewById(R.id.layoutDots);
        ImageView[] dots = new ImageView[MAX_STEP];

        dotsLayout.removeAllViews();
        for (int i = 0; i < dots.length; i++) {
            dots[i] = new ImageView(this);
            int width_height = 10;
            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(new ViewGroup.LayoutParams(width_height, width_height));
            params.setMargins(10, 10, 10, 10);
            dots[i].setLayoutParams(params);
            dots[i].setImageResource(R.drawable.shape_circle);
            dots[i].setColorFilter(getResources().getColor(R.color.grey_20), PorterDuff.Mode.SRC_IN);
            dotsLayout.addView(dots[i]);
        }

        if (dots.length > 0) {
            dots[current_index].setImageResource(R.drawable.shape_circle);
            dots[current_index].setColorFilter(getResources().getColor(R.color.grey_80), PorterDuff.Mode.SRC_IN);
        }
    }


    private void initComponent() {
        viewPager = (ViewPager) findViewById(R.id.view_pager);
        myViewPagerAdapter = new MyViewPagerAdapter();
        viewPager.setAdapter(myViewPagerAdapter);
        viewPager.addOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
            @Override
            public void onPageSelected(int position) {
                super.onPageSelected(position);
                bottomProgressDots(position);
            }
        });

        ((ImageButton) findViewById(R.id.bt_comments)).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                showCommentsDialog();
            }
        });
        ((ImageButton) findViewById(R.id.bt_back)).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                onBackPressed();
            }
        });
    }

    private void showCommentsDialog() {
        final Dialog dialog = new Dialog(this, R.style.BaseTheme);
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE); // before
        Tools.setSystemBarColorDialog(this, dialog, R.color.grey_5);
        Tools.setSystemBarLightDialog(dialog);
        dialog.setContentView(R.layout.dialog_article_comments);
        dialog.setCancelable(true);

        WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
        lp.copyFrom(dialog.getWindow().getAttributes());
        lp.width = WindowManager.LayoutParams.MATCH_PARENT;
        lp.height = WindowManager.LayoutParams.MATCH_PARENT;

        ((ImageButton) dialog.findViewById(R.id.bt_close)).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dialog.dismiss();
            }
        });

        dialog.show();
        dialog.getWindow().setAttributes(lp);
    }

    /**
     * View pager adapter
     */
    public class MyViewPagerAdapter extends PagerAdapter {
        private LayoutInflater layoutInflater;

        public MyViewPagerAdapter() {
        }

        @Override
        public Object instantiateItem(ViewGroup container, int position) {
            layoutInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            View view = layoutInflater.inflate(R.layout.item_article_stepper, container, false);
            TextView text = (TextView) view.findViewById(R.id.text);
            if (position > 0) {
                text.setVisibility(View.VISIBLE);
                (view.findViewById(R.id.lyt_article_cover)).setVisibility(View.GONE);
                if (position % 2 == 0) {
                    text.setText(R.string.long_lorem_ipsum_2);
                } else {
                    text.setText(R.string.long_lorem_ipsum);
                }
            }
            container.addView(view);
            return view;
        }

        @Override
        public int getCount() {
            return MAX_STEP;
        }

        @Override
        public boolean isViewFromObject(View view, Object obj) {
            return view == obj;
        }


        @Override
        public void destroyItem(ViewGroup container, int position, Object object) {
            View view = (View) object;
            container.removeView(view);
        }
    }
}