analytics-empty-state.

lib/pages/analytics/modules/air_quality/widgets/aqi_distribution_chart_box.dart

@@ -3,7 +3,9 @@ import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:syncrow_web/pages/analytics/modules/air_quality/blocs/air_quality_distribution/air_quality_distribution_bloc.dart';
 import 'package:syncrow_web/pages/analytics/modules/air_quality/widgets/aqi_distribution_chart.dart';
 import 'package:syncrow_web/pages/analytics/modules/air_quality/widgets/aqi_distribution_chart_title.dart';
+import 'package:syncrow_web/pages/analytics/widgets/analytics_chart_empty_state_widget.dart';
 import 'package:syncrow_web/pages/analytics/widgets/analytics_error_widget.dart';
+import 'package:syncrow_web/utils/constants/assets.dart';
 import 'package:syncrow_web/utils/style.dart';
 
 class AqiDistributionChartBox extends StatelessWidget {
@@ -32,8 +34,20 @@ class AqiDistributionChartBox extends StatelessWidget {
               const SizedBox(height: 10),
               const Divider(),
               const SizedBox(height: 20),
-              Expanded(
+              Visibility(
-                child: AqiDistributionChart(chartData: state.chartData),
+                visible: state.chartData.isNotEmpty,
+                replacement: AnalyticsChartEmptyStateWidget(
+                  isLoading: state.status == AirQualityDistributionStatus.loading,
+                  isError: state.status == AirQualityDistributionStatus.failure,
+                  isInitial: state.status == AirQualityDistributionStatus.initial,
+                  errorMessage: state.errorMessage,
+                  iconPath: Assets.emptyBarredChart,
+                ),
+                child: Expanded(
+                  child: AqiDistributionChart(
+                    chartData: state.chartData,
+                  ),
+                ),
               ),
             ],
           ),

lib/pages/analytics/modules/air_quality/widgets/range_of_aqi_chart_box.dart

@@ -3,7 +3,9 @@ import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:syncrow_web/pages/analytics/modules/air_quality/blocs/range_of_aqi/range_of_aqi_bloc.dart';
 import 'package:syncrow_web/pages/analytics/modules/air_quality/widgets/range_of_aqi_chart.dart';
 import 'package:syncrow_web/pages/analytics/modules/air_quality/widgets/range_of_aqi_chart_title.dart';
+import 'package:syncrow_web/pages/analytics/widgets/analytics_chart_empty_state_widget.dart';
 import 'package:syncrow_web/pages/analytics/widgets/analytics_error_widget.dart';
+import 'package:syncrow_web/utils/constants/assets.dart';
 import 'package:syncrow_web/utils/style.dart';
 
 class RangeOfAqiChartBox extends StatelessWidget {
@@ -32,12 +34,22 @@ class RangeOfAqiChartBox extends StatelessWidget {
               const SizedBox(height: 10),
               const Divider(),
               const SizedBox(height: 20),
-              Expanded(
+              Visibility(
+                visible: state.filteredRangeOfAqi.isNotEmpty,
+                replacement: AnalyticsChartEmptyStateWidget(
+                  isLoading: state.status == RangeOfAqiStatus.loading,
+                  isError: state.status == RangeOfAqiStatus.failure,
+                  isInitial: state.status == RangeOfAqiStatus.initial,
+                  errorMessage: state.errorMessage,
+                  iconPath: Assets.emptyRangeOfAqi,
+                ),
+                child: Expanded(
                   child: RangeOfAqiChart(
                     chartData: state.filteredRangeOfAqi,
                     selectedAqiType: state.selectedAqiType,
                   ),
                 ),
+              ),
             ],
           ),
         );

lib/pages/analytics/modules/energy_management/widgets/energy_consumption_per_device_chart_box.dart

@@ -5,8 +5,10 @@ import 'package:syncrow_web/pages/analytics/modules/energy_management/blocs/ener
 import 'package:syncrow_web/pages/analytics/modules/energy_management/widgets/chart_title.dart';
 import 'package:syncrow_web/pages/analytics/modules/energy_management/widgets/energy_consumption_per_device_chart.dart';
 import 'package:syncrow_web/pages/analytics/modules/energy_management/widgets/energy_consumption_per_device_devices_list.dart';
+import 'package:syncrow_web/pages/analytics/widgets/analytics_chart_empty_state_widget.dart';
 import 'package:syncrow_web/pages/analytics/widgets/analytics_error_widget.dart';
 import 'package:syncrow_web/pages/analytics/widgets/charts_loading_widget.dart';
+import 'package:syncrow_web/utils/constants/assets.dart';
 import 'package:syncrow_web/utils/style.dart';
 
 class EnergyConsumptionPerDeviceChartBox extends StatelessWidget {
@@ -54,8 +56,24 @@ class EnergyConsumptionPerDeviceChartBox extends StatelessWidget {
               const SizedBox(height: 20),
               const Divider(height: 0),
               const SizedBox(height: 20),
-              Expanded(
+              Visibility(
-                child: EnergyConsumptionPerDeviceChart(chartData: state.chartData),
+                visible: state.chartData.isNotEmpty &&
+                    state.chartData
+                        .every((e) => e.energy.every((e) => e.value != 0)),
+                replacement: AnalyticsChartEmptyStateWidget(
+                  isLoading:
+                      state.status == EnergyConsumptionPerDeviceStatus.loading,
+                  isError: state.status == EnergyConsumptionPerDeviceStatus.failure,
+                  isInitial:
+                      state.status == EnergyConsumptionPerDeviceStatus.initial,
+                  errorMessage: state.errorMessage,
+                  iconPath: Assets.emptyEnergyManagementPerDevice,
+                ),
+                child: Expanded(
+                  child: EnergyConsumptionPerDeviceChart(
+                    chartData: state.chartData,
+                  ),
+                ),
               ),
             ],
           ),

lib/pages/analytics/modules/occupancy/widgets/occupancy_chart_box.dart

@@ -6,8 +6,10 @@ import 'package:syncrow_web/pages/analytics/modules/energy_management/widgets/ch
 import 'package:syncrow_web/pages/analytics/modules/occupancy/blocs/occupancy/occupancy_bloc.dart';
 import 'package:syncrow_web/pages/analytics/modules/occupancy/helpers/fetch_occupancy_data_helper.dart';
 import 'package:syncrow_web/pages/analytics/modules/occupancy/widgets/occupancy_chart.dart';
+import 'package:syncrow_web/pages/analytics/widgets/analytics_chart_empty_state_widget.dart';
 import 'package:syncrow_web/pages/analytics/widgets/analytics_error_widget.dart';
 import 'package:syncrow_web/pages/space_tree/bloc/space_tree_bloc.dart';
+import 'package:syncrow_web/utils/constants/assets.dart';
 import 'package:syncrow_web/utils/style.dart';
 
 class OccupancyChartBox extends StatelessWidget {
@@ -67,7 +69,24 @@ class OccupancyChartBox extends StatelessWidget {
               const SizedBox(height: 20),
               const Divider(),
               const SizedBox(height: 20),
-              Expanded(child: OccupancyChart(chartData: state.chartData)),
+              Visibility(
+                visible: state.chartData.isNotEmpty &&
+                    state.chartData.every(
+                      (e) => e.occupancy.isNotEmpty,
+                    ),
+                replacement: AnalyticsChartEmptyStateWidget(
+                  isLoading: state.status == OccupancyStatus.loading,
+                  isError: state.status == OccupancyStatus.failure,
+                  isInitial: state.status == OccupancyStatus.initial,
+                  errorMessage: state.errorMessage,
+                  iconPath: Assets.emptyBarredChart,
+                ),
+                child: Expanded(
+                  child: OccupancyChart(
+                    chartData: state.chartData,
+                  ),
+                ),
+              ),
             ],
           ),
         );

lib/pages/analytics/modules/occupancy/widgets/occupancy_heat_map_box.dart

@@ -6,8 +6,10 @@ import 'package:syncrow_web/pages/analytics/modules/energy_management/widgets/ch
 import 'package:syncrow_web/pages/analytics/modules/occupancy/blocs/occupancy_heat_map/occupancy_heat_map_bloc.dart';
 import 'package:syncrow_web/pages/analytics/modules/occupancy/helpers/fetch_occupancy_data_helper.dart';
 import 'package:syncrow_web/pages/analytics/modules/occupancy/widgets/occupancy_heat_map.dart';
+import 'package:syncrow_web/pages/analytics/widgets/analytics_chart_empty_state_widget.dart';
 import 'package:syncrow_web/pages/analytics/widgets/analytics_error_widget.dart';
 import 'package:syncrow_web/pages/space_tree/bloc/space_tree_bloc.dart';
+import 'package:syncrow_web/utils/constants/assets.dart';
 import 'package:syncrow_web/utils/style.dart';
 
 class OccupancyHeatMapBox extends StatelessWidget {
@@ -68,7 +70,19 @@ class OccupancyHeatMapBox extends StatelessWidget {
               const SizedBox(height: 20),
               const Divider(),
               const SizedBox(height: 20),
-              Expanded(
+              Visibility(
+                visible: state.heatMapData.isNotEmpty &&
+                    state.heatMapData.every(
+                      (e) => e.countTotalPresenceDetected != 0,
+                    ),
+                replacement: AnalyticsChartEmptyStateWidget(
+                  isLoading: state.status == OccupancyHeatMapStatus.loading,
+                  isError: state.status == OccupancyHeatMapStatus.failure,
+                  isInitial: state.status == OccupancyHeatMapStatus.initial,
+                  errorMessage: state.errorMessage,
+                  iconPath: Assets.emptyHeatmap,
+                ),
+                child: Expanded(
                   child: OccupancyHeatMap(
                     selectedDate:
                         context.watch<AnalyticsDatePickerBloc>().state.yearlyDate,
@@ -80,6 +94,7 @@ class OccupancyHeatMapBox extends StatelessWidget {
                         ),
                   ),
                 ),
+              ),
             ],
           ),
         );

lib/pages/analytics/widgets/analytics_chart_empty_state_widget.dart

@@ -27,53 +27,37 @@ class AnalyticsChartEmptyStateWidget extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Expanded(
-      child: () {
+      child: _buildWidgetBasedOnState(context),
-        if (isLoading) {
-          return const AppLoadingIndicator();
-        } else if (isError) {
-          return _buildState(
-            context,
-            message: errorMessage ?? 'Something went wrong',
-            color: ColorsManager.red,
-          );
-        } else if (isInitial) {
-          return _buildState(context, message: initialMessage);
-        } else {
-          return _buildState(context, message: noDataMessage);
-        }
-      }(),
     );
   }
 
-  Widget _buildState(
+  Widget _buildWidgetBasedOnState(BuildContext context) {
-    BuildContext context, {
+    final widgetsMap = {
-    required String message,
+      isLoading: const AppLoadingIndicator(),
-    Color? color,
+      isInitial: _buildState(context, initialMessage),
-  }) {
+      isError: _buildState(context, errorMessage ?? 'Something went wrong'),
-    final disabledColor = context.theme.disabledColor;
+    };
+
+    return widgetsMap[true] ?? _buildState(context, noDataMessage);
+  }
+
+  Widget _buildState(BuildContext context, String message) {
     return Center(
       child: Column(
         spacing: 16,
         mainAxisAlignment: MainAxisAlignment.center,
         children: [
           const SizedBox(height: 16),
-          Expanded(
+          Expanded(child: SvgPicture.asset(iconPath, fit: BoxFit.contain)),
-            child: SvgPicture.asset(
-              iconPath,
-              fit: BoxFit.contain,
-              colorFilter: ColorFilter.mode(
-                color ?? disabledColor,
-                BlendMode.srcIn,
-              ),
-            ),
-          ),
           SelectableText(
             message,
-            style: context.textTheme.bodyMedium?.copyWith(
+            style: isError
-              color: color ?? disabledColor,
+                ? context.textTheme.bodyMedium?.copyWith(
+                    color: ColorsManager.red,
                     fontSize: 16,
                     fontWeight: FontWeight.w700,
-            ),
+                  )
+                : null,
             textAlign: TextAlign.center,
           ),
           const SizedBox(height: 16),