ia

app/src/main/java/com/example/lifegrid/TelaInicialActivity.java

@@ -59,6 +59,9 @@ public class TelaInicialActivity extends AppCompatActivity {
     
     private String[] meses = {"Janeiro", "Fevereiro", "Março", "Abril", "Maio", "Junho", "Julho", "Agosto", "Setembro", "Outubro", "Novembro", "Dezembro"};
 
+    private androidx.activity.result.ActivityResultLauncher<android.net.Uri> takePictureLauncher;
+    private android.net.Uri currentPhotoUri;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -70,7 +73,18 @@ public class TelaInicialActivity extends AppCompatActivity {
             return insets;
         });
 
-        
+        takePictureLauncher = registerForActivityResult(
+                new androidx.activity.result.contract.ActivityResultContracts.TakePicture(),
+                success -> {
+                    if (success) {
+                        processInvoiceImage(currentPhotoUri);
+                    }
+                }
+        );
+
+        com.google.android.material.floatingactionbutton.FloatingActionButton fabScanInvoice = findViewById(R.id.fabScanInvoice);
+        fabScanInvoice.setOnClickListener(v -> startInvoiceScan());
+
         ivHeaderProfilePicture = findViewById(R.id.ivHeaderProfilePicture);
         tvHeaderUsername = findViewById(R.id.tvHeaderUsername);
         
@@ -141,6 +155,55 @@ public class TelaInicialActivity extends AppCompatActivity {
             startActivity(intent);
         });
     }
+
+    public void startInvoiceScan() {
+        java.io.File photoFile = new java.io.File(getFilesDir(), "invoice_" + System.currentTimeMillis() + ".jpg");
+        currentPhotoUri = androidx.core.content.FileProvider.getUriForFile(this, getPackageName() + ".fileprovider", photoFile);
+        takePictureLauncher.launch(currentPhotoUri);
+    }
+
+    private void processInvoiceImage(android.net.Uri imageUri) {
+        Toast.makeText(this, "A processar fatura com IA...", Toast.LENGTH_LONG).show();
+        InvoiceScannerHelper.scanInvoice(this, imageUri, new InvoiceScannerHelper.ScanCallback() {
+            @Override
+            public void onSuccess(double valor, String descricao, String categoria, String data) {
+                runOnUiThread(() -> {
+                    Fragment currentFragment = getSupportFragmentManager().findFragmentById(R.id.fragmentContainerView);
+                    TransacoesFragment transFragment;
+                    if (currentFragment instanceof TransacoesFragment) {
+                        transFragment = (TransacoesFragment) currentFragment;
+                    } else {
+                        updateNavSelection(findViewById(R.id.carteiraImageView));
+                        transFragment = new TransacoesFragment();
+                        getSupportFragmentManager().beginTransaction()
+                                .replace(R.id.fragmentContainerView, transFragment)
+                                .commit();
+                        getSupportFragmentManager().executePendingTransactions();
+                    }
+                    transFragment.showNovaTransacaoDialog(valor, descricao, categoria, data);
+                    
+                    // Save document to shared preferences or database
+                    saveDocument(imageUri.toString(), descricao, data);
+                });
+            }
+
+            @Override
+            public void onError(String error) {
+                runOnUiThread(() -> Toast.makeText(TelaInicialActivity.this, error, Toast.LENGTH_LONG).show());
+            }
+        });
+    }
+    
+    private void saveDocument(String uriString, String descricao, String data) {
+        SharedPreferences prefs = getSharedPreferences("LifeGridDocs", Context.MODE_PRIVATE);
+        int count = prefs.getInt("doc_count", 0);
+        SharedPreferences.Editor editor = prefs.edit();
+        editor.putString("doc_uri_" + count, uriString);
+        editor.putString("doc_desc_" + count, descricao);
+        editor.putString("doc_data_" + count, data);
+        editor.putInt("doc_count", count + 1);
+        editor.apply();
+    }
     
     @Override
     protected void onResume() {