Update main.py

main.py

@@ -38,6 +38,30 @@ from app.materials_cost import display_materials_cost_page
 from app.m_c_data import SAMPLE_MATERIALS, SAMPLE_FENESTRATIONS, DEFAULT_MATERIAL_PROPERTIES, DEFAULT_WINDOW_PROPERTIES, SAMPLE_CONSTRUCTIONS
 
 class BuildSustain:
+    """
+    Main class for the BuildSustain application.
+    Handles navigation, session state initialization, and module integration.
+    """
+    
+    def __init__(self):
+        """
+        Initialize the BuildSustain application.
+        Sets up the page configuration and initializes session state if needed.
+        """
+        # Configure the Streamlit page
+        st.set_page_config(
+            page_title="BuildSustain",
+            page_icon="🌡️",
+            layout="wide",
+            initial_sidebar_state="expanded"
+        )
+        
+        # Initialize session state if it doesn't exist
+        self._initialize_session_state()
+        
+        # Set up the application layout
+        self.setup_layout()
+    
     def _initialize_session_state(self):
         """
         Initialize the session state structure if it doesn't exist.
@@ -47,7 +71,7 @@ class BuildSustain:
         if 'current_page' not in st.session_state:
             st.session_state.current_page = "Intro"
         
-        # Initialize material library if not set
+        # Initialize material library if not set (Added to support hvac_loads.py)
         if 'material_library' not in st.session_state:
             st.session_state.material_library = MaterialLibrary()
             logger.info("Initialized MaterialLibrary in session state")
@@ -97,7 +121,7 @@ class BuildSustain:
                     "epw_filename": "",
                     "typical_extreme_periods": {},
                     "ground_temperatures": {},
-                    "ground_reflectivity": 0.2
+                    "ground_reflectivity": 0.2  # Added for hvac_loads.py solar calculations
                 },
                 "materials": {
                     "library": dict(SAMPLE_MATERIALS),
@@ -132,24 +156,27 @@ class BuildSustain:
                         "peak": 0,
                         "summary_tables": {},
                         "charts": {},
-                        "breakdown": {}
+                        "breakdown": {}  # Added to store detailed load components (e.g., conduction, solar)
                     },
                     "heating": {
                         "hourly": [],
                         "peak": 0,
                         "summary_tables": {},
                         "charts": {},
-                        "breakdown": {}
+                        "breakdown": {}  # Added to store detailed load components
                     }
                 },
-                "hvac_settings": {},  # Removed operating_hours and system_type
-                "sim_period": {
+                "hvac_settings": {  # Added to support hvac_loads.py
+                    "operating_hours": [{"start": 8, "end": 18}],
+                    "system_type": "Default"
+                },
+                "sim_period": {  # Added to support hvac_loads.py
                     "type": "Full Year",
                     "start_date": None,
                     "end_date": None,
                     "base_temp": 18.3
                 },
-                "indoor_conditions": {
+                "indoor_conditions": {  # Added to support hvac_loads.py
                     "type": "Fixed Setpoints",
                     "cooling_setpoint": {"temperature": 24.0, "rh": 50.0},
                     "heating_setpoint": {"temperature": 20.0, "rh": 50.0},
@@ -408,4 +435,4 @@ if __name__ == "__main__":
         st.error(f"An error occurred: {str(e)}")
         logger.exception("Application error")
 
-sys.path.append(os.path.join(os.path.dirname(__file__), 'data')) 
+sys.path.append(os.path.join(os.path.dirname(__file__), 'data'))