SIENTIAPDE-1645: Refactor temporary directory cleanup activity by extracting processing and deletion logic into dedicated helper methods. Update train_test_split to use a local numpy.random generator for improved reproducibility. Remove an unnecessary else: pass block.

model_manager/activities/cleanup.py

@@ -61,6 +61,87 @@ class Cleanup(SientiaMonitoring):
             r'^(.+)_(\d{8}_\d{6}_\d{6})$'
         )  # name_YYYYMMDD_HHMMSS_microseconds
 
+    def _process_directory_item(
+        self,
+        item_path: str,
+        item_name: str,
+        cutoff_time: datetime,
+        metadata: dict[str, Any],
+    ) -> tuple[bool, str | None]:
+        """
+        Handle a single temp-directory entry: skip if the name doesn't match the
+        timestamp pattern, otherwise delete (or dry-run log) it when stale.
+
+        Args:
+            item_path: Full path to the directory being evaluated
+            item_name: Directory name (used to extract the embedded timestamp)
+            cutoff_time: Directories older than this are considered stale
+            metadata: Workflow execution metadata for logging
+
+        Return:
+            tuple[bool, str | None]: (deleted, error_message). `deleted` is True
+            if the directory was removed (or would be, in dry-run mode).
+        """
+        match = self.dir_timestamp_pattern.match(item_name)
+        if not match:
+            self.debug(f'Skipping directory without timestamp pattern: {item_name}', metadata)
+            return False, None
+
+        timestamp_str = match.group(2)
+        try:
+            # Parse YYYYMMDD_HHMMSS_microseconds
+            dir_time = datetime.strptime(timestamp_str, '%Y%m%d_%H%M%S_%f')
+        except ValueError as e:
+            error_msg = f'Invalid timestamp format in directory {item_name}: {str(e)}'
+            self.error(error_msg, metadata)
+            return False, error_msg
+
+        return self._delete_if_stale(item_path, item_name, dir_time, cutoff_time, metadata)
+
+    def _delete_if_stale(
+        self,
+        item_path: str,
+        item_name: str,
+        dir_time: datetime,
+        cutoff_time: datetime,
+        metadata: dict[str, Any],
+    ) -> tuple[bool, str | None]:
+        """
+        Delete (or dry-run log) a directory whose embedded timestamp is older than
+        cutoff_time; otherwise leave it alone.
+
+        Args:
+            item_path: Full path to the directory
+            item_name: Directory name (for logging)
+            dir_time: Timestamp parsed from the directory name
+            cutoff_time: Directories older than this are considered stale
+            metadata: Workflow execution metadata for logging
+
+        Return:
+            tuple[bool, str | None]: (deleted, error_message)
+        """
+        if dir_time >= cutoff_time:
+            age_hours = (datetime.now() - dir_time).total_seconds() / 3600
+            self.debug(f'Keeping recent directory: {item_name} (age: {age_hours:.1f}h)', metadata)
+            return False, None
+
+        age_hours = (datetime.now() - dir_time).total_seconds() / 3600
+
+        if self.dry_run:
+            self.info(
+                f'[DRY RUN] Would delete directory: {item_name} (age: {age_hours:.1f}h)', metadata
+            )
+            return True, None
+
+        try:
+            shutil.rmtree(item_path)
+            self.info(f'Deleted stale directory: {item_name} (age: {age_hours:.1f}h)', metadata)
+            return True, None
+        except OSError as e:
+            error_msg = f'Failed to delete directory {item_name}: {str(e)}'
+            self.error(error_msg, metadata)
+            return False, error_msg
+
     @activity.defn(name='cleanup_temp_directories')
     def cleanup_temp_directories(self, input_data: dict[str, Any]) -> None:
         """
@@ -109,51 +190,13 @@ class Cleanup(SientiaMonitoring):
 
                 directories_scanned += 1
 
-                # Extract timestamp from directory name
-                match = self.dir_timestamp_pattern.match(item_name)
-                if not match:
-                    self.debug(
-                        f'Skipping directory without timestamp pattern: {item_name}', metadata
-                    )
-                    continue
-
-                timestamp_str = match.group(2)
-                try:
-                    # Parse YYYYMMDD_HHMMSS_microseconds
-                    dir_time = datetime.strptime(timestamp_str, '%Y%m%d_%H%M%S_%f')
-
-                    if dir_time < cutoff_time:
-                        age_hours = (datetime.now() - dir_time).total_seconds() / 3600
-
-                        if self.dry_run:
-                            self.info(
-                                f'[DRY RUN] Would delete directory: {item_name} (age: {age_hours:.1f}h)',
-                                metadata,
-                            )
-                            directories_deleted += 1
-                        else:
-                            try:
-                                shutil.rmtree(item_path)
-                                self.info(
-                                    f'Deleted stale directory: {item_name} (age: {age_hours:.1f}h)',
-                                    metadata,
-                                )
-                                directories_deleted += 1
-                            except OSError as e:
-                                error_msg = f'Failed to delete directory {item_name}: {str(e)}'
-                                errors.append(error_msg)
-                                self.error(error_msg, metadata)
-                    else:
-                        age_hours = (datetime.now() - dir_time).total_seconds() / 3600
-                        self.debug(
-                            f'Keeping recent directory: {item_name} (age: {age_hours:.1f}h)',
-                            metadata,
-                        )
-
-                except ValueError as e:
-                    error_msg = f'Invalid timestamp format in directory {item_name}: {str(e)}'
-                    errors.append(error_msg)
-                    self.error(error_msg, metadata)
+                deleted, error = self._process_directory_item(
+                    item_path, item_name, cutoff_time, metadata
+                )
+                if error:
+                    errors.append(error)
+                if deleted:
+                    directories_deleted += 1
 
             self.info(
                 f'Directory cleanup completed - Scanned: {directories_scanned}, '

model_manager/utils/repository/data_manager_repository.py

@@ -42,15 +42,13 @@ def train_test_split(
     random_state: int | None = None,
     shuffle: bool = True,
 ) -> tuple[pd.DataFrame, pd.DataFrame]:
-    # 1. Definir a semente (seed) para reprodutibilidade
-    if random_state is not None:
-        np.random.seed(random_state)
-
     # 2. Gerar índices e embaralhar se necessário
     indices = np.arange(len(data))
 
     if shuffle:
-        np.random.shuffle(indices)
+        # 1. Generator local (em vez do estado global np.random) para reprodutibilidade
+        rng = np.random.default_rng(random_state)
+        rng.shuffle(indices)
 
     # 3. Calcular o ponto de corte (split point)
     # Cálculo: N_treino = tamanho_total * proporcao_treino

model_manager/workflows/train_model.py

@@ -136,8 +136,6 @@ class TrainModel:
                         run_dir=train_result.get('run_dir'),
                         metadata=metadata,
                     )
-                else:
-                    pass
             except Exception:  # noqa: BLE001
                 # If cleanup fails after training failed, there is nothing extra to log (DB not committed).
                 if training_succeeded:  # pragma: no branch