package com.material.components.activity.tabs;

import android.graphics.Color;
import android.graphics.PorterDuff;
import android.os.Bundle;
import com.google.android.material.tabs.TabLayout;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentPagerAdapter;
import androidx.viewpager.widget.ViewPager;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;

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

import java.util.ArrayList;
import java.util.List;

public class TabsTextIcon extends AppCompatActivity {
    private ViewPager view_pager;
    private SectionsPagerAdapter viewPagerAdapter;
    private TabLayout tab_layout;

    @Override
    protected void onCreate(Bundle savedInstanceState) {

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

        initComponent();
        initToolbar();
    }

    private void initToolbar() {
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        toolbar.setNavigationIcon(R.drawable.ic_menu);
        setSupportActionBar(toolbar);
        getSupportActionBar().setTitle("Store");
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        Tools.setSystemBarColor(this);
    }

    private void initComponent() {
        view_pager = (ViewPager) findViewById(R.id.view_pager);
        tab_layout = (TabLayout) findViewById(R.id.tab_layout);
        setupViewPager(view_pager);

        tab_layout.setupWithViewPager(view_pager);

        tab_layout.getTabAt(0).setIcon(R.drawable.ic_music);
        tab_layout.getTabAt(1).setIcon(R.drawable.ic_movie);
        tab_layout.getTabAt(2).setIcon(R.drawable.ic_book);

        // set icon color pre-selected
        tab_layout.getTabAt(0).getIcon().setColorFilter(Color.WHITE, PorterDuff.Mode.SRC_IN);
        tab_layout.getTabAt(1).getIcon().setColorFilter(getResources().getColor(R.color.grey_20), PorterDuff.Mode.SRC_IN);
        tab_layout.getTabAt(2).getIcon().setColorFilter(getResources().getColor(R.color.grey_20), PorterDuff.Mode.SRC_IN);

        tab_layout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
            @Override
            public void onTabSelected(TabLayout.Tab tab) {
                tab.getIcon().setColorFilter(Color.WHITE, PorterDuff.Mode.SRC_IN);
            }

            @Override
            public void onTabUnselected(TabLayout.Tab tab) {
                tab.getIcon().setColorFilter(getResources().getColor(R.color.grey_20), PorterDuff.Mode.SRC_IN);
            }

            @Override
            public void onTabReselected(TabLayout.Tab tab) {

            }
        });

    }

    private void setupViewPager(ViewPager viewPager) {
        viewPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
        viewPagerAdapter.addFragment(FragmentTabsStore.newInstance(), "MUSIC");    // index 0
        viewPagerAdapter.addFragment(FragmentTabsStore.newInstance(), "MOVIES");   // index 1
        viewPagerAdapter.addFragment(FragmentTabsStore.newInstance(), "BOOKS");    // index 2
        viewPager.setAdapter(viewPagerAdapter);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_search, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (item.getItemId() == android.R.id.home) {
            finish();
        } else {
            Toast.makeText(getApplicationContext(), item.getTitle(), Toast.LENGTH_SHORT).show();
        }
        return super.onOptionsItemSelected(item);
    }

    private class SectionsPagerAdapter extends FragmentPagerAdapter {

        private final List mFragmentList = new ArrayList<>();
        private final List mFragmentTitleList = new ArrayList<>();

        public SectionsPagerAdapter(FragmentManager manager) {
            super(manager);
        }

        @Override
        public Fragment getItem(int position) {
            return mFragmentList.get(position);
        }

        @Override
        public int getCount() {
            return mFragmentList.size();
        }

        public void addFragment(Fragment fragment, String title) {
            mFragmentList.add(fragment);
            mFragmentTitleList.add(title);
        }

        @Override
        public CharSequence getPageTitle(int position) {
            return mFragmentTitleList.get(position);
        }
    }
}