design

app/src/main/java/com/example/lifegrid/menu/HomeFragment.java

@@ -3,31 +3,158 @@ package com.example.lifegrid.menu;
 import android.os.Bundle;
 
 import androidx.fragment.app.Fragment;
+import androidx.annotation.NonNull;
 
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.TextView;
+import android.widget.Toast;
 
 import com.example.lifegrid.R;
+import com.example.lifegrid.models.Transacao;
+import com.google.firebase.auth.FirebaseAuth;
+import com.google.firebase.auth.FirebaseUser;
+import com.google.firebase.database.DataSnapshot;
+import com.google.firebase.database.DatabaseError;
+import com.google.firebase.database.DatabaseReference;
+import com.google.firebase.database.FirebaseDatabase;
+import com.google.firebase.database.ValueEventListener;
 
+import java.util.Locale;
 
 public class HomeFragment extends Fragment {
 
+    private TextView tvValor;
+    private TextView tvTransacoes;
+    private TextView tvValor2;
+    private TextView tvTransacoes2;
+    private TextView tvValor3;
+    private TextView tvTransacoes3;
+    private TextView tvValor4;
+    private TextView tvTransacoes4;
+    private TextView tvTitulo;
+    private TextView tvTitulo2;
+
     public HomeFragment() {
         // Required empty public constructor
     }
 
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        }
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
-        // Inflate the layout for this fragment
         View root = inflater.inflate(R.layout.fragment_home, container, false);
 
+        tvValor = root.findViewById(R.id.tvValor);
+        tvTransacoes = root.findViewById(R.id.tvTransacoes);
+        tvValor2 = root.findViewById(R.id.tvValor2);
+        tvTransacoes2 = root.findViewById(R.id.tvTransacoes2);
+        tvValor3 = root.findViewById(R.id.tvValor3);
+        tvTransacoes3 = root.findViewById(R.id.tvTransacoes3);
+        tvValor4 = root.findViewById(R.id.tvValor4);
+        tvTransacoes4 = root.findViewById(R.id.tvTransacoes4);
+        tvTitulo = root.findViewById(R.id.tvTitulo);
+        tvTitulo2 = root.findViewById(R.id.tvTitulo2);
+
+        // Se precisarmos que o fragmento carregue dados logo ao iniciar,
+        // a atividade vai chamar este método quando o fragmento estiver pronto.
+        
+        root.findViewById(R.id.receitasCardView).setOnClickListener(v -> {
+            Fragment transacoesFragment = new TransacoesFragment();
+            requireActivity().getSupportFragmentManager().beginTransaction()
+                    .replace(R.id.fragmentContainerView, transacoesFragment)
+                    .commit();
+        });
+
+        root.findViewById(R.id.despesasCardView).setOnClickListener(v -> {
+            Fragment transacoesFragment = new TransacoesFragment();
+            requireActivity().getSupportFragmentManager().beginTransaction()
+                    .replace(R.id.fragmentContainerView, transacoesFragment)
+                    .commit();
+        });
+
         return root;
     }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        if (getActivity() instanceof com.example.lifegrid.TelaInicialActivity) {
+            ((com.example.lifegrid.TelaInicialActivity) getActivity()).atualizarDadosHome();
+        }
+    }
+
+    public void carregarDados(int mesSelecionado, String anoSelecionado, String mesNome) {
+        if (tvTitulo == null) return;
+
+        FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();
+        if (user == null) return;
+
+        tvTitulo.setText("Receitas (" + mesNome + " " + anoSelecionado + ")");
+        tvTitulo2.setText("Despesas (" + mesNome + " " + anoSelecionado + ")");
+
+        DatabaseReference transacoesRef = FirebaseDatabase.getInstance().getReference()
+                .child("users").child(user.getUid()).child("transacoes");
+
+        transacoesRef.addValueEventListener(new ValueEventListener() {
+            @Override
+            public void onDataChange(@NonNull DataSnapshot snapshot) {
+                if (!isAdded()) return;
+
+                double totalReceitas = 0;
+                double totalDespesas = 0;
+                int countReceitas = 0;
+                int countDespesas = 0;
+
+                for (DataSnapshot ds : snapshot.getChildren()) {
+                    Transacao transacao = ds.getValue(Transacao.class);
+                    if (transacao != null && transacao.getData() != null) {
+                        String[] parts = transacao.getData().split("/");
+                        if (parts.length == 3) {
+                            try {
+                                int mesTransacao = Integer.parseInt(parts[1]);
+                                String anoTransacao = parts[2];
+
+                                if (mesTransacao == mesSelecionado && anoTransacao.equals(anoSelecionado)) {
+                                    double valor = Double.parseDouble(transacao.getValor().replace(",", "."));
+                                    if ("Receita".equals(transacao.getTipo())) {
+                                        totalReceitas += valor;
+                                        countReceitas++;
+                                    } else if ("Despesa".equals(transacao.getTipo())) {
+                                        totalDespesas += valor;
+                                        countDespesas++;
+                                    }
+                                }
+                            } catch (NumberFormatException e) {
+                                e.printStackTrace();
+                            }
+                        }
+                    }
+                }
+
+                tvValor.setText(String.format(Locale.getDefault(), "%.2f€", totalReceitas));
+                tvTransacoes.setText(countReceitas + " transações");
+
+                tvValor2.setText(String.format(Locale.getDefault(), "%.2f€", totalDespesas));
+                tvTransacoes2.setText(countDespesas + " transações");
+
+                double saldo = totalReceitas - totalDespesas;
+                tvValor3.setText(String.format(Locale.getDefault(), "%.2f€", saldo));
+                if (saldo >= 0) {
+                    tvTransacoes3.setText("Poupança positiva");
+                    tvTransacoes3.setTextColor(android.graphics.Color.parseColor("#8E8E8E"));
+                } else {
+                    tvTransacoes3.setText("Poupança negativa");
+                    tvTransacoes3.setTextColor(android.graphics.Color.parseColor("#FF0000"));
+                }
+            }
+
+            @Override
+            public void onCancelled(@NonNull DatabaseError error) {
+                if (isAdded()) {
+                    Toast.makeText(getContext(), "Erro ao carregar dados", Toast.LENGTH_SHORT).show();
+                }
+            }
+        });
+    }
 }