package cy.agorise.crystalwallet.activities;

import android.app.ActivityOptions;
import androidx.lifecycle.ViewModelProviders;
import android.content.Context;
import android.content.ContextWrapper;
import android.content.Intent;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
import com.google.android.material.tabs.TabLayout;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentStatePagerAdapter;
import androidx.fragment.app.FragmentTransaction;
import androidx.viewpager.widget.ViewPager;
import androidx.appcompat.widget.Toolbar;
import android.util.Pair;
import android.view.View;
import android.view.animation.LinearInterpolator;
import android.widget.ImageView;

import com.bumptech.glide.Glide;
import com.bumptech.glide.request.RequestOptions;

import java.io.File;

import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.OnClick;
import cy.agorise.crystalwallet.R;
import cy.agorise.crystalwallet.fragments.BalanceFragment;
import cy.agorise.crystalwallet.fragments.ContactsFragment;
import cy.agorise.crystalwallet.fragments.MerchantsFragment;
import cy.agorise.crystalwallet.fragments.ReceiveTransactionFragment;
import cy.agorise.crystalwallet.fragments.SendTransactionFragment;
import cy.agorise.crystalwallet.fragments.TransactionsFragment;
import de.hdodenhof.circleimageview.CircleImageView;
import cy.agorise.crystalwallet.viewmodels.CryptoNetBalanceListViewModel;

/**
 * Created by Henry Varona on 7/10/2017.
 *
 */
public class BoardActivity  extends CustomActivity {

    @BindView(R.id.tabLayout)
    public TabLayout tabLayout;

    @BindView(R.id.pager)
    public ViewPager mPager;

    @BindView(R.id.fabSend)
    public FloatingActionButton fabSend;

    @BindView(R.id.fabReceive)
    public FloatingActionButton fabReceive;

    @BindView(R.id.fabAddContact)
    public FloatingActionButton fabAddContact;

    @BindView(R.id.ivAppBarAnimation)
    ImageView ivAppBarAnimation;

    public BoardPagerAdapter boardAdapter;

    /*
     * the id of the account of this crypto net balance. It will be loaded
     * when the element is bounded.
     */
    long cryptoNetAccountId;

    @BindView(R.id.toolbar_user_img)
    public CircleImageView userImage;

    @BindView(R.id.lightning)
    public ImageView lightning;

    @BindView(R.id.triangle)
    public ImageView triangle;

    File photoDirectory;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.board);
        ButterKnife.bind(this);

        //-1 represents a crypto net account not loaded yet
        this.cryptoNetAccountId = -1;

        Toolbar toolbar = findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        // Sets AppBar animation
        Glide.with(this)
                .load(R.drawable.appbar_background)
                .apply(new RequestOptions().centerCrop())
                .into(ivAppBarAnimation);

        boardAdapter = new BoardPagerAdapter(getSupportFragmentManager());
        mPager.setAdapter(boardAdapter);
        tabLayout.setupWithViewPager(mPager);

        fabReceive.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                receiveToThisAccount();
            }
        });
        fabSend.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                sendFromThisAccount();
            }
        });

        // Hide Add Contact fab, it won't hide until first page changed...
        // Convert 72dp to pixels (fab is 56dp in diameter + 16dp margin)
        final int fabDistanceToHide = (int) (72 * Resources.getSystem().getDisplayMetrics().density);
        fabAddContact.animate().translationY(fabDistanceToHide)
                .setInterpolator(new LinearInterpolator()).start();

        // Hide and show respective fabs when convenient
        mPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
            }

            @Override
            public void onPageSelected(int position) {

                switch (position) {
                    case 0:
                        fabReceive.show();
                        fabSend.show();
                        fabAddContact.animate().translationY(fabDistanceToHide)
                                .setInterpolator(new LinearInterpolator()).start();
                        break;

                    case 1:
                        fabReceive.show();
                        fabSend.show();
                        fabAddContact.animate().translationY(fabDistanceToHide)
                                .setInterpolator(new LinearInterpolator()).start();
                        break;

                    case 2:
                        fabReceive.hide();
                        fabSend.hide();
                        fabAddContact.animate().translationY(0)
                                .setInterpolator(new LinearInterpolator()).start();
                        break;

                    default:
                        fabReceive.hide();
                        fabSend.hide();
                        fabAddContact.animate().translationY(fabDistanceToHide)
                                .setInterpolator(new LinearInterpolator()).start();
                        break;
                }
            }

            @Override
            public void onPageScrollStateChanged(int state) {

            }
        });

        ContextWrapper cw = new ContextWrapper(getApplicationContext());
        photoDirectory = cw.getDir("profile", Context.MODE_PRIVATE);
        if (!photoDirectory.exists()) {
            photoDirectory.mkdir();
        }
        loadUserImage();
    }

    @Override
    protected void onResume() {
        super.onResume();

        loadUserImage();
    }

    public void loadUserImage(){
        //Search for a existing photo
        File photoFile = new File(photoDirectory + File.separator + "photo.png");

        if (photoFile.exists()){
            Bitmap bitmap = BitmapFactory.decodeFile(photoFile.getPath());
            userImage.setImageBitmap(bitmap);
        }
    }

    /**
     * dispatch the user to the accounts fragment
     */
    @OnClick(R.id.toolbar_user_img)
    public void accounts() {
        Intent intent = new Intent(this, AccountsActivity.class);

        // SharedElementTransition is only available from API level 21
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {
            Pair p1 = Pair.create(userImage, "gravatarTransition");
            Pair p2 = Pair.create(lightning, "lightningTransition");
            Pair p3 = Pair.create(triangle, "triangleTransition");

            ActivityOptions options = ActivityOptions
                    .makeSceneTransitionAnimation(this, p1, p2, p3);

            startActivity(intent, options.toBundle());
        } else {
            startActivity(intent);
        }
    }

    @OnClick(R.id.fabAddContact)
    public void beginCreateContact(){
        Intent intent = new Intent(this, CreateContactActivity.class);
        startActivity(intent);
    }

    /*
     * dispatch the user to the receive fragment using this account
     */
    public void receiveToThisAccount() {
        FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
        Fragment prev = getSupportFragmentManager().findFragmentByTag("ReceiveDialog");
        if (prev != null) {
            ft.remove(prev);
        }
        ft.addToBackStack(null);

        long receiveCryptoNetAccountId;
        if (this.cryptoNetAccountId != -1){
            receiveCryptoNetAccountId = this.cryptoNetAccountId;
        } else {
            CryptoNetBalanceListViewModel cryptoNetBalanceListViewModel = ViewModelProviders.of(this).get(CryptoNetBalanceListViewModel.class);
            receiveCryptoNetAccountId = cryptoNetBalanceListViewModel.getFirstBitsharesAccountId();
        }

        // Create and show the dialog.
        ReceiveTransactionFragment newFragment = ReceiveTransactionFragment.newInstance(receiveCryptoNetAccountId);
        newFragment.show(ft, "ReceiveDialog");
    }

    /*
     * dispatch the user to the send fragment using this account
     */
    public void sendFromThisAccount() {
        FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
        Fragment prev = getSupportFragmentManager().findFragmentByTag("SendDialog");
        if (prev != null) {
            ft.remove(prev);
        }
        ft.addToBackStack(null);

        long sendCryptoNetAccountId;
        if (this.cryptoNetAccountId != -1){
            sendCryptoNetAccountId = this.cryptoNetAccountId;
        } else {
            CryptoNetBalanceListViewModel cryptoNetBalanceListViewModel = ViewModelProviders.of(this).get(CryptoNetBalanceListViewModel.class);
            sendCryptoNetAccountId = cryptoNetBalanceListViewModel.getFirstBitsharesAccountId();
        }


        // Create and show the dialog.
        SendTransactionFragment newFragment = SendTransactionFragment.newInstance(sendCryptoNetAccountId);
        newFragment.show(ft, "SendDialog");
    }

    private class BoardPagerAdapter extends FragmentStatePagerAdapter {
        BoardPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        // Titles of the tabs
        int[] tabTitles = {R.string.balances, R.string.transactions, R.string.contacts,R.string.Merchants};

        @Override
        public Fragment getItem(int position) {
            switch (position){
                case 0:
                    return new BalanceFragment();
                case 1:
                    return new TransactionsFragment();
                case 2:
                    return new ContactsFragment();
                case 3:
                    return new MerchantsFragment();
            }


            return null; //new OnConstructionFragment();
        }

        @Override
        public CharSequence getPageTitle(int position) {
            return getString(tabTitles[position]);
        }

        @Override
        public int getCount() {
            return 4;
        }
    }
}