feat: add project base path and template path handling in report generation

- Introduced PROJECT_BASE_PATH constant for consistent project directory reference.
- Updated Reports class to require template_path for loading HTML templates.
- Modified DataManagerRepository to pass the new template_path when generating reports.

model_manager/runtime_paths.py

@@ -9,6 +9,9 @@ RUNTIME_DATA_ROOT = '/var/lib/model-manager'
 # Training reports (HTML, CSV exports, etc.) and related outputs.
 REPORTS_ROOT = join(RUNTIME_DATA_ROOT, 'reports')
 
+# project base path
+PROJECT_BASE_PATH = '/app/model_manager'
+
 # Per-training run folders (name + timestamp); cleanup cron deletes stale entries here.
 REPORTS_TEMP_DIR = join(REPORTS_ROOT, 'temp')
 

model_manager/sientia/reports.py

@@ -68,7 +68,7 @@ class Reports:
     """
 
     def __init__(
-        self, reference_data: Any, current_data: Any, target_name: str, base_path: str | None = None
+        self, reference_data: Any, current_data: Any, target_name: str, base_path: str | None = None, template_path: str | None = None
     ) -> None:
         """
         Initializes an instance of the AigReport class.
@@ -87,6 +87,7 @@ class Reports:
         self.target_name = target_name
         self.set_color_options(primary_color='#0F4C81', secondary_color='#001E60')
         self.base_path = base_path
+        self.template_path = template_path
 
     def add_data_quality_section(self, columns: list[str] | None = None, run: bool = True) -> None:
         """
@@ -238,6 +239,9 @@ class Reports:
         if not self.base_path:
             raise ValueError('base_path is required to save all sections HTML')
 
+        if not self.template_path:
+            raise ValueError('template_path is required to save all sections HTML')
+
         # Ensure output directory exists
         output_dir = os.path.dirname(report_path)
         if output_dir and not os.path.exists(output_dir):
@@ -248,7 +252,7 @@ class Reports:
         print(f"Base path: {self.base_path}")
 
         # Load main HTML template
-        main_html_path = os.path.join(self.base_path, 'header.html')
+        main_html_path = os.path.join(self.template_path, 'header.html')
         main_html = load_html_from_file(main_html_path)
 
         # Load content from data_drift.html, data_quality.html, and regression.html

model_manager/utils/repository/data_manager_repository.py

@@ -28,7 +28,7 @@ from sientia_do.observability.sientia_monitoring import SientiaMonitoring
 from sientia_do.temporal.constants import DATETIME_FORMAT_WITH_TZ
 from sientia_model.wrappers.sientia_model import SientiaModel
 
-from model_manager.runtime_paths import REPORTS_ROOT
+from model_manager.runtime_paths import REPORTS_ROOT, PROJECT_BASE_PATH
 from model_manager.sientia.metrics import mae, mse, r2
 from model_manager.sientia.reports import Reports  # type: ignore[import-untyped]
 from model_manager.utils.models.train_model_params import TrainModelParams
@@ -473,8 +473,7 @@ class DataManagerRepository(SientiaMonitoring):
             OSError: If directory creation fails for any other reason.
         """
         # Use microsecond precision to reduce collision probability
-        timestamp = datetime.now().strftime('%Y%m%d_%H%M%S_%f')
-        run_dir = path.join(base_path, 'temp', f'{run_name}_{timestamp}')
+        run_dir = path.join(base_path, 'temp', f'{run_name}')
 
         try:
             makedirs(run_dir, exist_ok=True)
@@ -534,11 +533,17 @@ class DataManagerRepository(SientiaMonitoring):
         current_data_float = current_data.astype(np.float64)
 
         # Initialize report generator
-        data.run_dir = self._create_run_directory(self._get_reports_directory(), data.run_name)
+        base_path = self._get_reports_directory()
+        data.run_dir = self._create_run_directory(base_path, data.run_name)
+        
+        # Template path is the code path of the model_manager package
+        template_path = path.join(PROJECT_BASE_PATH, 'reports')
+
         report = Reports(
             reference_data=reference_data_float,
             current_data=current_data_float,
             base_path=data.run_dir,
+            template_path=template_path,
             target_name=data.params.target_variable,
         )