Update app.py

app.py

@@ -17,16 +17,16 @@ def load_timeseries_data_for_month(month):
     end_date = (pd.to_datetime(month) + pd.offsets.MonthEnd()).strftime('%Y-%m-%d')
     file_name = f"enel_timeseries_data_{start_date}_{end_date}.csv"
     if not os.path.exists(file_name):
-        return None
-    return pd.read_csv(file_name, index_col=0, header=[0, 1, 2], parse_dates=True)
+        return None, file_name
+    return pd.read_csv(file_name, index_col=0, header=[0, 1, 2], parse_dates=True), file_name
 
 def load_other_features_data_for_month(month):
     start_date = pd.to_datetime(month).strftime('%Y-%m-01')
     end_date = (pd.to_datetime(month) + pd.offsets.MonthEnd()).strftime('%Y-%m-%d')
     file_name = f"enel_other_features_data_{start_date}_{end_date}.csv"
     if not os.path.exists(file_name):
-        return None
-    return pd.read_csv(file_name, index_col=0, header=0, parse_dates=True)
+        return None, file_name
+    return pd.read_csv(file_name, index_col=0, header=0, parse_dates=True), file_name
 
 # Define the available months
 months = pd.date_range(start='2022-09-01', end='2023-08-31', freq='MS').strftime('%Y-%m').tolist()
@@ -53,13 +53,14 @@ month_selector = pn.widgets.Select(
 
 inverter_ids = pn.widgets.MultiSelect(
     name="Inverter IDs",
-    value=[list(INVERTER_ID_MAPPING.keys())[0]],
     options=list(INVERTER_ID_MAPPING.keys()),
     size=8,
+    disabled=True,
 )
+
 # Line Plots
-plot_power_curves = pn.widgets.Checkbox(name="Plot P-dc and P-ac", value=False)
-plot_temperature_curves = pn.widgets.Checkbox(name="Plot Temperatures", value=False)
+plot_power_curves = pn.widgets.Checkbox(name="Plot P-dc and P-ac", value=False, disabled=True)
+plot_temperature_curves = pn.widgets.Checkbox(name="Plot Temperatures", value=False, disabled=True)
 
 # Heatmaps
 heatmap_pr = pn.widgets.Checkbox(name="Heat Map PR", value=False)
@@ -68,37 +69,46 @@ heatmap_current = pn.widgets.Checkbox(name="Heat Map - Current", value=False)
 heatmap_voltage = pn.widgets.Checkbox(name="Heat Map - Voltage", value=False)
 heatmap_power = pn.widgets.Checkbox(name="Heat Map - Power", value=False)
 heatmap_irradiance = pn.widgets.Checkbox(name="Heat Map - Irradiance", value=False)
-heatmap_temperature = pn.widgets.Checkbox(
-    name="Heat Map - Temperature Heatsink", value=False
-)
+heatmap_temperature = pn.widgets.Checkbox(name="Heat Map - Temperature Heatsink", value=False)
 
 # Create a loading spinner
-loading_spinner = pn.indicators.LoadingSpinner(width=50, height=50)
+loading_spinner = pn.indicators.LoadingSpinner(width=50, height=50, visible=False)
 
 # Global variables to store loaded data
 loaded_timeseries_data = None
 loaded_other_features_data = None
 loaded_month = None
 
+# Function to load data based on selected month
+@pn.depends(month_selector.param.value, watch=True)
+def load_data(selected_month):
+    global loaded_timeseries_data, loaded_other_features_data, loaded_month
+    if not selected_month:
+        return
+    loading_spinner.visible = True
+    timeseries_data, timeseries_file = load_timeseries_data_for_month(selected_month)
+    other_features_data, other_features_file = load_other_features_data_for_month(selected_month)
+    if timeseries_data is None or other_features_data is None:
+        loading_spinner.visible = False
+        return pn.pane.Markdown(f"Files not found: {timeseries_file if timeseries_data is None else ''} {other_features_file if other_features_data is None else ''}")
+    loaded_timeseries_data = timeseries_data
+    loaded_other_features_data = other_features_data
+    loaded_month = selected_month
+    loading_spinner.visible = False
+    inverter_ids.disabled = False
+    plot_power_curves.disabled = False
+    plot_temperature_curves.disabled = False
+    return pn.pane.Markdown(f"Data loaded for month: {selected_month}")
+
 # Panel interactive functions
 @pn.depends(
-    month_selector.param.value,
     inverter_ids.param.value,
     plot_power_curves.param.value,
     plot_temperature_curves.param.value
 )
-def update_iv_plot(inverter_ids, plot_power_curves, plot_temperature_curves, selected_month):
-    global loaded_timeseries_data, loaded_other_features_data, loaded_month
-    if not selected_month:
-        return pn.pane.Markdown("Please select a month to load data.")
-    
-    if loaded_month != selected_month:
-        loaded_timeseries_data = load_timeseries_data_for_month(selected_month)
-        loaded_other_features_data = load_other_features_data_for_month(selected_month)
-        loaded_month = selected_month
-    
-    if loaded_timeseries_data is None or loaded_other_features_data is None:
-        return pn.pane.Markdown("No data available for the selected month.")
+def update_iv_plot(inverter_ids, plot_power_curves, plot_temperature_curves):
+    if not loaded_timeseries_data or not loaded_other_features_data:
+        return pn.pane.Markdown("No data loaded.")
     
     if not inverter_ids:
         return pn.pane.Markdown("No Inverters selected for Plotting.")
@@ -195,6 +205,8 @@ def update_heatmap_temperature(heatmap_temperature):
 dashboard = pn.Column(
     "# ENEL Dashboard",
     month_selector,
+    loading_spinner,
+    pn.panel(load_data),
     # IV Plots
     pn.Row(
         pn.Column(inverter_ids, plot_power_curves, plot_temperature_curves),