package com.cashuwallet.android.ui;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.design.widget.Snackbar;
import android.support.v4.app.Fragment;
import android.support.v4.widget.NestedScrollView;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.widget.DividerItemDecoration;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.text.format.DateUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import com.cashuwallet.android.MainApplication;
import com.cashuwallet.android.R;
import com.cashuwallet.android.crypto.Coin;
import com.cashuwallet.android.crypto.Sync;
import com.cashuwallet.android.db.Multiwallet;
import com.cashuwallet.android.db.Transaction;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.math.RoundingMode;
import java.text.NumberFormat;
import java.util.List;
public class ActivityFragment extends Fragment {
private static final int PAGE_SIZE = 25; // TODO must be larger than what fits the screen
private static final int PAGE_BOTTOM = 5;
private Sync sync;
Multiwallet multiwallet;
private Adapter adapter;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_activity, container, false);
int id = getArguments().getInt("multiwallet");
DetailActivity activity = (DetailActivity) getActivity();
sync = MainApplication.app().getSync();
multiwallet = sync.findMultiwallet(id);
adapter = new Adapter(sync.findTransactions(multiwallet, 0, PAGE_SIZE));
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getActivity().getApplicationContext());
RecyclerView recyclerView = view.findViewById(R.id.recycler_view);
recyclerView.addItemDecoration(new DividerItemDecoration(recyclerView.getContext(), DividerItemDecoration.VERTICAL));
recyclerView.setLayoutManager(linearLayoutManager);
recyclerView.setAdapter(adapter);
NestedScrollView emptyText = view.findViewById(R.id.empty_list);
if (adapter.getItemCount() == 0) {
recyclerView.setVisibility(View.GONE);
emptyText.setVisibility(View.VISIBLE);
} else {
recyclerView.setVisibility(View.VISIBLE);
emptyText.setVisibility(View.GONE);
}
recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
super.onScrolled(recyclerView, dx, dy);
int count = linearLayoutManager.getItemCount();
int last = linearLayoutManager.findLastVisibleItemPosition();
if (count - last <= PAGE_BOTTOM) {
int size = adapter.getItemCount();
adapter.items.addAll(sync.findTransactions(multiwallet, size, PAGE_SIZE));
int increment = adapter.getItemCount() - size;
if (increment > 0) {
adapter.notifyItemRangeInserted(size, increment);
}
}
}
});
SwipeRefreshLayout swipeRefreshLayout = view.findViewById(R.id.swipe_refresh_layout);
swipeRefreshLayout.setOnRefreshListener(() -> refresh(view, true));
if (activity.refreshPending) {
activity.refreshPending = false;
refresh(view, false);
}
return view;
}
void refresh(View view, boolean requested)
{
DetailActivity activity = (DetailActivity) getActivity();
RecyclerView recyclerView = view.findViewById(R.id.recycler_view);
NestedScrollView emptyText = view.findViewById(R.id.empty_list);
SwipeRefreshLayout swipeRefreshLayout = view.findViewById(R.id.swipe_refresh_layout);
if (!MainApplication.app().networkAvailable()) {
if (requested) {
Snackbar.make(recyclerView, R.string.network_not_available, Snackbar.LENGTH_LONG).show();
swipeRefreshLayout.setRefreshing(false);
}
return;
}
if (!requested) swipeRefreshLayout.setRefreshing(true);
sync.sync(multiwallet, () -> {
activity.refresh(multiwallet);
int size = adapter.getItemCount();
adapter.items.clear();
adapter.items.addAll(sync.findTransactions(multiwallet, 0, PAGE_SIZE));
if (size >= adapter.getItemCount()) {
adapter.notifyItemRangeChanged(0, adapter.getItemCount());
adapter.notifyItemRangeRemoved(adapter.getItemCount(), size - adapter.getItemCount());
} else {
adapter.notifyItemRangeChanged(0, size);
adapter.notifyItemRangeInserted(size, adapter.getItemCount() - size);
}
if (adapter.getItemCount() == 0) {
recyclerView.setVisibility(View.GONE);
emptyText.setVisibility(View.VISIBLE);
} else {
recyclerView.setVisibility(View.VISIBLE);
emptyText.setVisibility(View.GONE);
}
swipeRefreshLayout.setRefreshing(false);
});
}
private class Adapter extends RecyclerView.Adapter<ViewHolder> {
private final List<Transaction> items;
Adapter(List<Transaction> items) {
this.items = items;
}
@Override
public int getItemCount() {
return items.size();
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.fragment_activity_item, parent, false);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(ViewHolder vh, final int position) {
Transaction transaction = items.get(position);
vh.transaction = transaction;
updateViewHolder(vh, transaction);
}
private void updateViewHolder(ViewHolder vh, Transaction transaction) {
Coin coin = transaction.getCoin();
int res;
switch (transaction.getType()) {
default:
// TODO add icon for Transaction.Type.NONE
case NONE: res = R.drawable.ic_sent; break;
case INCOMING: res = R.drawable.ic_receive; break;
case OUTGOING: res = R.drawable.ic_sent; break;
}
int color = getResources().getColor(transaction.confirmed ? R.color.status_confirmed : R.color.status_pending);
vh.image.setImageResource(res);
vh.amount.setText(formatAmount(coin, transaction.getAbsAmount()));
vh.time.setText(formatDateTime(transaction.getTime()));
vh.status.setTextColor(color);
vh.itemView.setOnClickListener((View view) -> {
String url = sync.getUrl(transaction);
if (url == null) {
Snackbar.make(view, R.string.transaction_url_not_available, Snackbar.LENGTH_LONG).show();
return;
}
try {
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
} catch (ActivityNotFoundException e) {
Snackbar.make(view, R.string.failure_open_url_activity, Snackbar.LENGTH_LONG).show();
}
});
}
private String formatDateTime(int time) {
long timestamp = 1000 * (long) time;
return DateUtils.formatDateTime(getContext(), timestamp,DateUtils.FORMAT_SHOW_DATE|DateUtils.FORMAT_SHOW_TIME);
}
private String formatAmount(Coin coin, BigInteger amount) {
//String symbol = coin.getSymbol();
String code = coin.getCode();
int decimals = coin.getDecimals();
NumberFormat format = NumberFormat.getNumberInstance();
format.setMinimumFractionDigits(decimals);
format.setMaximumFractionDigits(decimals);
format.setRoundingMode(RoundingMode.UNNECESSARY);
BigDecimal decimal = new BigDecimal(amount);
decimal = decimal.divide(BigDecimal.TEN.pow(decimals));
String value = format.format(decimal);
return /*(symbol == null ? "" : symbol + " ") +*/ value + " " + code;
}
}
private static class ViewHolder extends RecyclerView.ViewHolder {
Transaction transaction;
ImageView image;
TextView amount;
TextView time;
TextView status;
ViewHolder(View view) {
super(view);
image = view.findViewById(R.id.image);
amount = view.findViewById(R.id.amount);
time = view.findViewById(R.id.time);
status = view.findViewById(R.id.status);
}
}
}
