Update app.py

app.py

@@ -31,7 +31,7 @@ def generate_sample_data():
                 "Log_Timestamp": current_date.strftime("%Y-%m-%d %H:%M:%S"),
                 "Usage_Count": random.randint(0, 50),
                 "Status": random.choice(["Operational", "Down", "Maintenance"]),
-                "AMC_Expiry": (current_date + timedelta(days=random.randint(10, 365))).strftime("%Y-%m-%d")
+                "AMC_Expiry": (current_date + timedelta(days=random.randint(10, 90))).strftime("%Y-%m-%d")
             })
             current_date += timedelta(days=1)
     
@@ -63,12 +63,19 @@ def process_dashboard_data(lab_filter, equipment_type_filter, start_date, end_da
                 end_date_dt = datetime.strptime(end_date, "%Y-%m-%d")
                 if start_date_dt > end_date_dt:
                     return "Error: Start date must be before end date.", None, None, None, "", None
-            except ValueError as e:
+                # Check if dates are within sample data range
+                data_start = datetime(2025, 1, 1)
+                data_end = datetime(2025, 6, 30)
+                if start_date_dt < data_start or end_date_dt > data_end:
+                    return f"Error: Dates must be between 2025-01-01 and 2025-06-30. Received: Start={start_date}, End={end_date}", None, None, None, "", None
+            except ValueError:
                 return f"Error: Invalid date format. Use YYYY-MM-DD (e.g., 2025-05-01). Received: Start={start_date}, End={end_date}", None, None, None, "", None
         else:
             start_date_dt = datetime(2025, 1, 1)
             end_date_dt = datetime(2025, 6, 30)
 
+        print(f"Input dates: Start={start_date}, End={end_date}")  # Debug log
+
         # Apply filters
         filtered_devices = devices_df.copy()
         if lab_filter != "All":
@@ -85,10 +92,12 @@ def process_dashboard_data(lab_filter, equipment_type_filter, start_date, end_da
                 (filtered_logs["Log_Date"] >= start_date_str) &
                 (filtered_logs["Log_Date"] <= end_date_str)
             ]
-            print(f"Filtered logs count: {len(filtered_logs)}")  # Debug log
+        print(f"Filtered logs count: {len(filtered_logs)}")  # Debug log
         
         # Device Cards
         device_cards = "Device Cards:\n"
+        if filtered_devices.empty:
+            device_cards += "No devices match the selected filters.\n"
         for _, device in filtered_devices.iterrows():
             device_logs = filtered_logs[filtered_logs["Device_ID"] == device["Device_ID"]]
             usage_count = device_logs["Usage_Count"].sum() if not device_logs.empty else 0
@@ -172,7 +181,7 @@ def process_dashboard_data(lab_filter, equipment_type_filter, start_date, end_da
 with gr.Blocks(title="LabOps Dashboard") as demo:
     gr.Markdown("# LabOps Dashboard")
     gr.Markdown("Monitor smart lab devices, view usage trends, uptime, anomalies, and export reports.")
-    gr.Markdown("**Note**: Use the calendar picker to select dates or manually enter in YYYY-MM-DD format (e.g., 2025-05-01). If the calendar picker doesn't appear, enter dates manually.")
+    gr.Markdown("**Note**: Use the calendar picker to select dates in YYYY-MM-DD format (e.g., 2025-05-01 to 2025-05-30). Dates must be between 2025-01-01 and 2025-06-30. If the calendar picker doesn't appear, enter dates manually.")
 
     # Filters
     gr.Markdown("## Filters")
@@ -189,7 +198,7 @@ with gr.Blocks(title="LabOps Dashboard") as demo:
         elem_id="end_date_picker"
     )
     
-    # Custom JavaScript to enable browser-native date picker
+    # Custom JavaScript to enable browser-native date picker with constraints
     gr.HTML("""
     <script>
         document.addEventListener('DOMContentLoaded', function() {
@@ -198,6 +207,10 @@ with gr.Blocks(title="LabOps Dashboard") as demo:
             if (startPicker && endPicker) {
                 startPicker.type = 'date';
                 endPicker.type = 'date';
+                startPicker.min = '2025-01-01';
+                startPicker.max = '2025-06-30';
+                endPicker.min = '2025-01-01';
+                endPicker.max = '2025-06-30';
             } else {
                 console.error('Date picker elements not found');
             }