WIP #120 Numeric state charts

lib/entity_class/entity.class.dart

@@ -5,15 +5,19 @@ class EntityColors {
     "on": Colors.amber,
     "auto": Colors.amber,
     "idle": Colors.amber,
-    "off": Color.fromRGBO(68, 115, 158, 1.0),
-    "default": Color.fromRGBO(68, 115, 158, 1.0),
-    "heat": Colors.redAccent,
-    "cool": Colors.lightBlue,
-    "unavailable": Colors.black26,
-    "unknown": Colors.black26,
     "playing": Colors.amber,
     "above_horizon": Colors.amber,
     "home":  Colors.amber,
+    "open":  Colors.amber,
+    "off": Color.fromRGBO(68, 115, 158, 1.0),
+    "closed": Color.fromRGBO(68, 115, 158, 1.0),
+    "default": Color.fromRGBO(68, 115, 158, 1.0),
+    "heat": Colors.redAccent,
+    "cool": Colors.lightBlue,
+    "closing": Colors.cyan,
+    "opening": Colors.purple,
+    "unavailable": Colors.black26,
+    "unknown": Colors.black26,
   };
 
   static Color stateColor(String state) {
@@ -69,8 +73,8 @@ class Entity {
   DateTime _lastUpdated;
 
   List<Entity> childEntities = [];
-
   List<String> attributesToShow = ["all"];
+  int historyWidgetType = EntityHistoryWidgetType.simple;
 
   String get displayName =>
       attributes["friendly_name"] ?? (attributes["name"] ?? "_");
@@ -88,6 +92,7 @@ class Entity {
   List get childEntityIds => attributes["entity_id"] ?? [];
   String get lastUpdated => _getLastUpdatedFormatted();
   bool get isHidden => attributes["hidden"] ?? false;
+  double get doubleState => double.tryParse(state) ?? 0.0;
 
   Entity(Map rawData) {
     update(rawData);
@@ -167,7 +172,7 @@ class Entity {
 
   Widget buildHistoryWidget() {
     return EntityHistoryWidget(
-      type: EntityHistoryWidgetType.simplest,
+      type: historyWidgetType,
     );
   }
 

lib/entity_class/other_entity.class.dart

@@ -0,0 +1,14 @@
+part of '../main.dart';
+
+class SunEntity extends Entity {
+  SunEntity(Map rawData) : super(rawData);
+}
+
+class SensorEntity extends Entity {
+
+  @override
+  int historyWidgetType = EntityHistoryWidgetType.valueToTime;
+
+  SensorEntity(Map rawData) : super(rawData);
+
+}

lib/entity_class/slider_entity.dart

@@ -1,16 +1,11 @@
 part of '../main.dart';
 
-class SunEntity extends Entity {
-  SunEntity(Map rawData) : super(rawData);
-}
-
 class SliderEntity extends Entity {
   SliderEntity(Map rawData) : super(rawData);
 
-  double get minValue => attributes["min"] ?? 0.0;
-  double get maxValue => attributes["max"] ?? 100.0;
-  double get valueStep => attributes["step"] ?? 1.0;
-  double get doubleState => double.tryParse(state) ?? 0.0;
+  double get minValue => _getDoubleAttributeValue("min") ?? 0.0;
+  double get maxValue =>_getDoubleAttributeValue("max") ?? 100.0;
+  double get valueStep => _getDoubleAttributeValue("step") ?? 1.0;
 
   @override
   Widget _buildStatePart(BuildContext context) {

lib/entity_collection.class.dart

@@ -38,6 +38,9 @@ class EntityCollection {
       case 'sun': {
         return SunEntity(rawEntityData);
       }
+      case 'sensor': {
+        return SensorEntity(rawEntityData);
+      }
       case "automation":
       case "input_boolean":
       case "switch": {

lib/entity_widgets/history_chart/entity_history.dart

@@ -1,8 +1,9 @@
 part of '../../main.dart';
 
 class EntityHistoryWidgetType {
-  static const int simplest = 0;
+  static const int simple = 0;
   static const int valueToTime = 1;
+  static const int randomColors = 2;
 }
 
 class EntityHistoryWidget extends StatefulWidget {
@@ -69,9 +70,7 @@ class _EntityHistoryWidgetState extends State<EntityHistoryWidget> {
       );
     } else {
       children.add(
-          SimpleStateHistoryChartWidget(
-            rawHistory: _history
-          )
+          _selectChartWidget()
       );
     }
     children.add(Divider());
@@ -83,4 +82,27 @@ class _EntityHistoryWidgetState extends State<EntityHistoryWidget> {
     );
   }
 
+  Widget _selectChartWidget() {
+    switch (widget.type) {
+      case EntityHistoryWidgetType.simple: {
+          return SimpleStateHistoryChartWidget(
+            rawHistory: _history,
+          );
+      }
+
+      case EntityHistoryWidgetType.valueToTime: {
+        return NumericStateHistoryChartWidget(
+          rawHistory: _history,
+        );
+      }
+
+      default: {
+        return SimpleStateHistoryChartWidget(
+          rawHistory: _history,
+        );
+      }
+    }
+
+  }
+
 }

lib/entity_widgets/history_chart/numeric_state_history_chart.dart

@@ -0,0 +1,140 @@
+part of '../../main.dart';
+
+class NumericStateHistoryChartWidget extends StatefulWidget {
+  final rawHistory;
+
+  const NumericStateHistoryChartWidget({Key key, this.rawHistory}) : super(key: key);
+
+
+  @override
+  State<StatefulWidget> createState() {
+    return new _NumericStateHistoryChartWidgetState();
+  }
+
+}
+
+class _NumericStateHistoryChartWidgetState extends State<NumericStateHistoryChartWidget> {
+
+  int _selectedId = -1;
+  List<charts.Series<NumericEntityStateHistoryMoment, DateTime>> _parsedHistory;
+
+  @override
+  Widget build(BuildContext context) {
+    _parsedHistory = _parseHistory();
+    DateTime selectedTime;
+    double selectedState;
+    if ((_selectedId > -1) && (_parsedHistory != null) && (_parsedHistory.first.data.length >= (_selectedId + 1))) {
+      selectedTime = _parsedHistory.first.data[_selectedId].time;
+      selectedState = _parsedHistory.first.data[_selectedId].value;
+    }
+    return Column(
+      mainAxisAlignment: MainAxisAlignment.start,
+      crossAxisAlignment: CrossAxisAlignment.center,
+      children: <Widget>[
+        HistoryControlWidget(
+          selectedTimeStart: selectedTime,
+          selectedState: "$selectedState",
+          onPrevTap: () => _selectPrev(),
+          onNextTap: () => _selectNext(),
+        ),
+        SizedBox(
+          height: 150.0,
+          child: charts.TimeSeriesChart(
+            _parsedHistory,
+            animate: false,
+            primaryMeasureAxis: new charts.NumericAxisSpec(
+                tickProviderSpec:
+                new charts.BasicNumericTickProviderSpec(zeroBound: false)),
+            dateTimeFactory: const charts.LocalDateTimeFactory(),
+            defaultRenderer: charts.LineRendererConfig(),
+            customSeriesRenderers: [
+              new charts.PointRendererConfig(
+                // ID used to link series to this renderer.
+                  customRendererId: 'valuePoints')
+            ],
+            /*primaryMeasureAxis: charts.NumericAxisSpec(
+                renderSpec: charts.NoneRenderSpec()
+            ),*/
+            selectionModels: [
+              new charts.SelectionModelConfig(
+                type: charts.SelectionModelType.info,
+                listener: (model) => _onSelectionChanged(model),
+              )
+            ],
+            behaviors: [
+              charts.PanAndZoomBehavior(),
+            ],
+          ),
+        )
+      ],
+    );
+  }
+
+  List<charts.Series<NumericEntityStateHistoryMoment, DateTime>> _parseHistory() {
+    List<NumericEntityStateHistoryMoment> data = [];
+    DateTime now = DateTime.now();
+    for (var i = 0; i < widget.rawHistory.length; i++) {
+      var stateData = widget.rawHistory[i];
+      DateTime time = DateTime.tryParse(stateData["last_updated"])?.toLocal();
+      data.add(NumericEntityStateHistoryMoment(double.tryParse(stateData["state"]), time, i));
+    }
+    data.add(NumericEntityStateHistoryMoment(data.last.value, now, widget.rawHistory.length));
+    return [
+      new charts.Series<NumericEntityStateHistoryMoment, DateTime>(
+        id: 'State',
+        colorFn: (NumericEntityStateHistoryMoment historyMoment, __) => EntityColors.historyStateColor("unavailable"),
+        domainFn: (NumericEntityStateHistoryMoment historyMoment, _) => historyMoment.time,
+        measureFn: (NumericEntityStateHistoryMoment historyMoment, _) => historyMoment.value,
+        data: data,
+      ),
+      new charts.Series<NumericEntityStateHistoryMoment, DateTime>(
+        id: 'State',
+        radiusPxFn: (NumericEntityStateHistoryMoment historyMoment, __) => (historyMoment.id == _selectedId) ? 4.0 : 2.0,
+        colorFn: (NumericEntityStateHistoryMoment historyMoment, __) => (historyMoment.id == _selectedId) ? EntityColors.historyStateColor("on") : EntityColors.historyStateColor("off"),
+        domainFn: (NumericEntityStateHistoryMoment historyMoment, _) => historyMoment.time,
+        measureFn: (NumericEntityStateHistoryMoment historyMoment, _) => historyMoment.value,
+        data: data,
+      )..setAttribute(charts.rendererIdKey, 'valuePoints')
+    ];
+  }
+
+  void _selectPrev() {
+    if (_selectedId > 0) {
+      setState(() {
+        _selectedId -= 1;
+      });
+    }
+  }
+
+  void _selectNext() {
+    if (_selectedId < (_parsedHistory.first.data.length - 2)) {
+      setState(() {
+        _selectedId += 1;
+      });
+    }
+  }
+
+  void _onSelectionChanged(charts.SelectionModel model) {
+    final selectedDatum = model.selectedDatum;
+
+    int selectedId;
+
+    if (selectedDatum.isNotEmpty) {
+      selectedId = selectedDatum.first.datum.id;
+      setState(() {
+        _selectedId = selectedId;
+      });
+    } else {
+      setState(() {
+      });
+    }
+  }
+}
+
+class NumericEntityStateHistoryMoment {
+  final DateTime time;
+  final double value;
+  final int id;
+
+  NumericEntityStateHistoryMoment(this.value, this.time,  this.id);
+}

lib/entity_widgets/history_chart/simple_state_history_chart.dart

@@ -162,15 +162,7 @@ class HistoryControlWidget extends StatelessWidget {
                   ),
                 ),
               ),
-              Expanded(
-                child: Column(
-                  crossAxisAlignment: CrossAxisAlignment.start,
-                  children: <Widget>[
-                    Text("${formatDate(selectedTimeStart, [M, ' ', d, ', ', HH, ':', nn, ':', ss])}", textAlign: TextAlign.left,),
-                    Text("${formatDate(selectedTimeEnd ?? selectedTimeStart, [M, ' ', d, ', ', HH, ':', nn, ':', ss])}", textAlign: TextAlign.left,),
-                  ],
-                ),
-              ),
+              _buildTime(),
               IconButton(
                 icon: Icon(Icons.chevron_right),
                 padding: EdgeInsets.all(0.0),
@@ -185,6 +177,24 @@ class HistoryControlWidget extends StatelessWidget {
     }
   }
 
+  Widget _buildTime() {
+    List<Widget> children = [];
+    children.add(
+        Text("${formatDate(selectedTimeStart, [M, ' ', d, ', ', HH, ':', nn, ':', ss])}", textAlign: TextAlign.left,)
+    );
+    if (selectedTimeEnd != null) {
+      children.add(
+          Text("${formatDate(selectedTimeEnd, [M, ' ', d, ', ', HH, ':', nn, ':', ss])}", textAlign: TextAlign.left,)
+      );
+    }
+    return Expanded(
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: children,
+      ),
+    );
+  }
+
 }
 
 class SimpleEntityStateHistoryMoment {

lib/main.dart

@@ -24,7 +24,8 @@ part 'entity_class/cover_entity.class.dart';
 part 'entity_class/date_time_entity.class.dart';
 part 'entity_class/light_entity.class.dart';
 part 'entity_class/select_entity.class.dart';
-part 'entity_class/sun_entity.class.dart';
+part 'entity_class/other_entity.class.dart';
+part 'entity_class/slider_entity.dart';
 part 'entity_widgets/badge.dart';
 part 'entity_widgets/model_widgets.dart';
 part 'entity_widgets/default_entity_container.dart';
@@ -37,6 +38,7 @@ part 'entity_widgets/mode_selector.dart';
 part 'entity_widgets/entity_page_container.dart';
 part 'entity_widgets/history_chart/entity_history.dart';
 part 'entity_widgets/history_chart/simple_state_history_chart.dart';
+part 'entity_widgets/history_chart/numeric_state_history_chart.dart';
 part 'entity_widgets/state/switch_state.dart';
 part 'entity_widgets/state/slider_state.dart';
 part 'entity_widgets/state/text_input_state.dart';