public class FragGastos extends Fragment implements View.OnClickListener, AdapterDinero.OnItemClickListener{

private static final String TAG = "SDSADSDS";
private Button btAdd;
private FirebaseAuth auth = FirebaseAuth.getInstance();
private GastosService gastosService;
private ArrayList<Dinero> dineros;
private RecyclerView recyclerView;
private AdapterDinero adapter;

public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.frag_gastos_layout, container, false);
    FirebaseUser user = auth.getCurrentUser();
    gastosService = GastosService.getInstance(user.getDisplayName());
    dineros = gastosService.getDineros();
    adapter = new AdapterDinero(getContext());
    adapter.setOnItemClickListener(this);
    recyclerView = view.findViewById(R.id.rv_Gastos);
    adapter.setDineros(dineros);
    recyclerView.setAdapter(adapter);
    recyclerView.setLayoutManager(new LinearLayoutManager(getContext(), RecyclerView.VERTICAL, false));
    btAdd = view.findViewById(R.id.bt_add_gasto);
    btAdd.setOnClickListener(this);
    return view;
}

@Override
public void onClick(View v) {
    Intent intent = new Intent(getActivity(), AddActivity.class);
    startActivity(intent);
}


@Override
public void onItemClick(View view, int position) {
    Intent intent = new Intent(getActivity(), DetalleActivity.class);
    Log.w(TAG, "HA PETADO AQUI");
    intent.putExtra("objDinero", dineros.get(position));
    startActivity(intent);
}
}



public class FragIngresos extends Fragment implements View.OnClickListener {

private Button btAdd;
private FirebaseAuth auth;
private IngresosService ingresosService;
private ArrayList<Dinero> dineros;
private RecyclerView recyclerView;
private AdapterDinero adapter;

public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.frag_ingresos_layout, container, false);
    auth = FirebaseAuth.getInstance();
    FirebaseUser user = auth.getCurrentUser();
    ingresosService = IngresosService.getInstance(user.getDisplayName());
    dineros = ingresosService.getDineros();
    adapter = new AdapterDinero(getContext());
    recyclerView = view.findViewById(R.id.rvIngresos);
    recyclerView.setAdapter(adapter);
    adapter.setDineros(dineros);
    recyclerView.setLayoutManager(new LinearLayoutManager(getContext(), RecyclerView.VERTICAL, false));
    btAdd = view.findViewById(R.id.bt_add_gasto);
    btAdd.setOnClickListener(this);
    return view;
}

@Override
public void onClick(View v) {
    Intent intent = new Intent(getActivity(), AddActivity.class);
    startActivity(intent);
}
}

public class AdapterDinero extends RecyclerView.Adapter<AdapterDinero.DineroViewHolder> {

public interface OnItemClickListener
{
     void onItemClick(View view, int position);
}

private ArrayList<Dinero> dineros;
private Context context;
private OnItemClickListener onItemClickListener;

public void setOnItemClickListener(OnItemClickListener onItemClickListener)
{
    this.onItemClickListener = onItemClickListener;
}


public AdapterDinero(Context context) {
    this.context = context;
}
public void setDineros(ArrayList<Dinero> dineros) {
    this.dineros = dineros;
    notifyDataSetChanged();
}

@NonNull
@Override
public DineroViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
    View view = LayoutInflater.from(context).inflate(R.layout.item_dinero, viewGroup, false);
    return new DineroViewHolder(view);
}

@Override
public void onBindViewHolder(@NonNull final DineroViewHolder dineroViewHolder, final int i) {
    Dinero dinero = dineros.get(i);
    dineroViewHolder.AsignarDatos(dinero);
}

@Override
public int getItemCount() {
    if(dineros != null){
        return dineros.size();
    }
    else{
        return 0;
    }
}

public class DineroViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
    private TextView tvTitulo, tvDinero;
    public DineroViewHolder(@NonNull View itemView) {
        super(itemView);
        tvTitulo = itemView.findViewById(R.id.tv_itemDinero_titulo);
        tvDinero = itemView.findViewById(R.id.tv_itemDinero_Precio);
        itemView.setOnClickListener(this);
    }

    public void AsignarDatos(Dinero dinero){
        String total = String.valueOf(dinero.getTotal())+ "€";
        tvDinero.setText(total);
        tvTitulo.setText(dinero.getNombre());
    }


    @Override
    public void onClick(View v) {
        if ( onItemClickListener != null ){
            onItemClickListener.onItemClick(this.itemView, this.getAdapterPosition() );
        }
    }
}

public class GastosService {

private ArrayList<Dinero> dineros;
public static GastosService gastosService;

public static GastosService getInstance(String username){
    if(gastosService == null){
        gastosService = new GastosService(username);
    }
    return  gastosService;
}

private GastosService(String userName){
    FirebaseRead firebaseOperation = new FirebaseRead();
    firebaseOperation.getGastos(userName, new FirebaseRead.GastosLoaded() {
        @Override
        public void gastosIsLoaded(ArrayList<Dinero> gastos) {
            dineros = gastos;
        }
    });
}

public ArrayList<Dinero> getDineros() {
    return dineros;
}

public Dinero getDinero(int i){
    return dineros.get(i);
}
}


public class IngresosService {

private ArrayList<Dinero> dineros;
public static IngresosService ingresosService;

public static IngresosService getInstance(String username){
    if(ingresosService == null){
        ingresosService = new IngresosService(username);
    }
    return  ingresosService;
}

private IngresosService(String userName){
    FirebaseRead firebaseOperation = new FirebaseRead();
    firebaseOperation.getIngresos(userName, new FirebaseRead.IngresosIsLoaded() {
        @Override
        public void ingresosIsLoaded(ArrayList<Dinero> ingresos) {
            dineros = ingresos;
        }
    });
}

public ArrayList<Dinero> getDineros() {
    return dineros;
}

public Dinero getDinero(int i){
    return dineros.get(i);
}
}

public class FirebaseRead {
private static final String TAG1 = "Operacion de lectura";
private FirebaseDatabase database = FirebaseDatabase.getInstance();
private ArrayList<Dinero> beneficio;
private ArrayList<Dinero> gastos;
float total;

public interface DineroIsLoaded{
    void dineroIsLoaded(ArrayList<Dinero> auxDinero);
}

public void getGastos(String user, DineroIsLoaded gLoaded ){
    gastos = new ArrayList<>();
    final DineroIsLoaded gastosLoaded = gLoaded;
    DatabaseReference ref = database.getReference().child("Users").child(user).child("Gastos");

    ref.addValueEventListener(new ValueEventListener() {
        @Override

        public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
            gastos.clear();
            for(DataSnapshot ds : dataSnapshot.getChildren()){
                String nombreAux = ds.child("nombre").getValue().toString();
                String descAux = ds.child("descripcion").getValue().toString();
                String fecha = ds.child("fecha").getValue().toString();
                int precioAux = Integer.parseInt(ds.child("total").getValue().toString());
                Dinero dinero = new Dinero(nombreAux, descAux,precioAux, fecha);
                dinero.setId(ds.getKey());
                gastos.add(dinero);
            }
            gastos = ordenaDinero(gastos);
            gastosLoaded.dineroIsLoaded(gastos);
        }

        @Override
        public void onCancelled(@NonNull DatabaseError databaseError) {

        }
    });
}

public void getIngresos(String user, DineroIsLoaded iLoaded){
    beneficio = new ArrayList<>();
    final DineroIsLoaded ingresosIsLoaded = iLoaded;
    DatabaseReference ref = database.getReference().child("Users").child(user).child("Ingresos");

    ref.addValueEventListener(new ValueEventListener() {
        @Override
        public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
            beneficio.clear();
            for(DataSnapshot ds : dataSnapshot.getChildren()){
                String nombreAux = ds.child("nombre").getValue().toString();
                String descAux = ds.child("descripcion").getValue().toString();
                String fecha = ds.child("fecha").getValue().toString();
                int precioAux = Integer.parseInt(ds.child("total").getValue().toString());
                Dinero dinero = new Dinero(nombreAux, descAux,precioAux, fecha);
                dinero.setId(ds.getKey());
                beneficio.add(dinero);
            }
            beneficio = ordenaDinero(beneficio);
            ingresosIsLoaded.dineroIsLoaded(beneficio);
        }

        @Override
        public void onCancelled(@NonNull DatabaseError databaseError) {

        }
    });
}