a acabar

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

@@ -13,6 +13,7 @@ import android.widget.Toast;
 
 import com.example.lifegrid.R;
 import com.example.lifegrid.models.Transacao;
+import com.example.lifegrid.models.Ativos;
 import com.google.firebase.auth.FirebaseAuth;
 import com.google.firebase.auth.FirebaseUser;
 import com.google.firebase.database.DataSnapshot;
@@ -73,9 +74,74 @@ public class HomeFragment extends Fragment {
                     .commit();
         });
 
+        root.findViewById(R.id.ativosCardView).setOnClickListener(v -> {
+            Fragment ativosFragment = new AtivosFragment();
+            requireActivity().getSupportFragmentManager().beginTransaction()
+                    .replace(R.id.fragmentContainerView, ativosFragment)
+                    .commit();
+        });
+
+        carregarDadosAtivos();
+
         return root;
     }
 
+    private void carregarDadosAtivos() {
+        FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();
+        if (user == null) return;
+
+        DatabaseReference ativosRef = FirebaseDatabase.getInstance().getReference()
+                .child("users").child(user.getUid()).child("ativos");
+
+        ativosRef.addValueEventListener(new ValueEventListener() {
+            @Override
+            public void onDataChange(@NonNull DataSnapshot snapshot) {
+                if (!isAdded()) return;
+
+                double totalInvestido = 0;
+                double valorTotalPortfolio = 0;
+
+                for (DataSnapshot ds : snapshot.getChildren()) {
+                    Ativos ativo = ds.getValue(Ativos.class);
+                    if (ativo != null) {
+                        double qtd = 0;
+                        try {
+                            qtd = Double.parseDouble(ativo.getQuantidade().replace(",", "."));
+                        } catch (Exception e) {}
+
+                        totalInvestido += qtd * ativo.getPrecoCompra();
+                        valorTotalPortfolio += qtd * ativo.getPrecoAtual();
+                    }
+                }
+
+                if (tvValor4 != null) {
+                    tvValor4.setText(String.format(Locale.getDefault(), "%.2f€", valorTotalPortfolio));
+                }
+
+                if (tvTransacoes4 != null) {
+                    double roi = valorTotalPortfolio - totalInvestido;
+                    double roiPct = 0;
+                    if (totalInvestido > 0) {
+                        roiPct = (roi / totalInvestido) * 100;
+                    }
+
+                    if (roi >= 0) {
+                        tvTransacoes4.setText(String.format(Locale.getDefault(), "+%.2f%% ROI", roiPct));
+                        tvTransacoes4.setTextColor(android.graphics.Color.parseColor("#22C55E"));
+                    } else {
+                        tvTransacoes4.setText(String.format(Locale.getDefault(), "%.2f%% ROI", roiPct));
+                        tvTransacoes4.setTextColor(android.graphics.Color.parseColor("#FF0000"));
+                    }
+                }
+            }
+
+            @Override
+            public void onCancelled(@NonNull DatabaseError error) {
+                // Ignore
+            }
+        });
+    }
+
     @Override
     public void onResume() {
         super.onResume();

app/src/main/res/layout/fragment_home.xml

@@ -247,7 +247,7 @@
             android:layout_marginStart="7dp"
             android:layout_marginTop="12dp"
             android:fontFamily="sans-serif"
-            android:text="Valor do Ativos"
+            android:text="Valor de Ativos"
             android:textColor="#4A5568"
             android:textSize="16sp"
             app:layout_constraintStart_toStartOf="parent"