Flot: add ability to use attributes in datakeys labels

@@ -19,6 +19,7 @@
 
 import { DataKey, Datasource, DatasourceData, JsonSettingsSchema } from '@shared/models/widget.models';
 import * as moment_ from 'moment';
+import { DataKeyType } from "@shared/models/telemetry/telemetry.models";
 
 export declare type ChartType = 'line' | 'pie' | 'bar' | 'state' | 'graph';
 
@@ -149,13 +150,24 @@ export interface TbFlotThresholdsSettings {
   thresholdsLineWidth: number;
 }
 
-export interface TbFlotGraphSettings extends TbFlotBaseSettings, TbFlotThresholdsSettings, TbFlotComparisonSettings {
+export interface TbFlotCustomLegendSettings {
+  customLegendEnabled: boolean;
+  dataKeysListForLabels: Array<TbFlotLabelPatternSettings>;
+}
+
+export interface TbFlotLabelPatternSettings {
+  name: string;
+  type: DataKeyType;
+  settings?: object
+}
+
+export interface TbFlotGraphSettings extends TbFlotBaseSettings, TbFlotThresholdsSettings, TbFlotComparisonSettings, TbFlotCustomLegendSettings {
   smoothLines: boolean;
 }
 
 export declare type BarAlignment = 'left' | 'right' | 'center';
 
-export interface TbFlotBarSettings extends TbFlotBaseSettings, TbFlotThresholdsSettings, TbFlotComparisonSettings {
+export interface TbFlotBarSettings extends TbFlotBaseSettings, TbFlotThresholdsSettings, TbFlotComparisonSettings, TbFlotCustomLegendSettings {
   defaultBarWidth: number;
   barAlignment: BarAlignment;
 }
@@ -503,13 +515,17 @@ export function flotSettingsSchema(chartType: ChartType): JsonSettingsSchema {
       GroupTitle: 'Common Settings'
     }];
     schema.form = [schema.form];
-    schema.schema.properties = {...schema.schema.properties, ...chartSettingsSchemaForComparison.schema.properties};
-    schema.schema.required = schema.schema.required.concat(chartSettingsSchemaForComparison.schema.required);
-    schema.form.push(chartSettingsSchemaForComparison.form);
+    schema.schema.properties = {...schema.schema.properties, ...chartSettingsSchemaForComparison.schema.properties, ...chartSettingsSchemaForCustomLegend.schema.properties};
+    schema.schema.required = schema.schema.required.concat(chartSettingsSchemaForComparison.schema.required, chartSettingsSchemaForCustomLegend.schema.required);
+    schema.form.push(chartSettingsSchemaForComparison.form, chartSettingsSchemaForCustomLegend.form);
     schema.groupInfoes.push({
       formIndex: schema.groupInfoes.length,
       GroupTitle:'Comparison Settings'
     });
+    schema.groupInfoes.push({
+      formIndex: schema.groupInfoes.length,
+      GroupTitle:'Custom Legend Settings'
+    });
   }
   return schema;
 }
@@ -603,6 +619,67 @@ const chartSettingsSchemaForComparison: JsonSettingsSchema = {
   ]
 };
 
+const chartSettingsSchemaForCustomLegend: JsonSettingsSchema = {
+  schema: {
+    title: 'Custom Legend Settings',
+    type: 'object',
+    properties: {
+      customLegendEnabled: {
+        title: 'Enable custom legend (this will allow you to use attribute/timeseries values in key labels)',
+        type: 'boolean',
+        default: false
+      },
+      dataKeysListForLabels: {
+        title: 'Datakeys list to use in labels',
+        type: 'array',
+        items: {
+          type: 'object',
+          properties: {
+            name: {
+              title: 'Key name',
+              type: 'string'
+            },
+            type: {
+              title: 'Key type',
+              type: 'string',
+              default: 'attribute'
+            }
+          },
+          required: [
+            'name'
+          ]
+        }
+      }
+    },
+    required: []
+  },
+  form: [
+    'customLegendEnabled',
+    {
+      key: 'dataKeysListForLabels',
+      condition: 'model.customLegendEnabled === true',
+      items: [
+        {
+          key: 'dataKeysListForLabels[].type',
+          type: 'rc-select',
+          multiple: false,
+          items: [
+            {
+              value: 'attribute',
+              label: 'Attribute'
+            },
+            {
+              value: 'timeseries',
+              label: 'Timeseries'
+            }
+          ]
+        },
+        'dataKeysListForLabels[].name'
+      ]
+    }
+  ]
+};
+
 export const flotPieSettingsSchema: JsonSettingsSchema = {
     schema: {
       type: 'object',

@@ -16,7 +16,15 @@
 
 
 import { WidgetContext } from '@home/models/widget-component.models';
-import { deepClone, isDefined, isEqual, isNumber, isUndefined } from '@app/core/utils';
+import {
+  createLabelFromDatasource,
+  deepClone,
+  insertVariable,
+  isDefined,
+  isEqual,
+  isNumber,
+  isUndefined
+} from '@app/core/utils';
 import { IWidgetSubscription, WidgetSubscriptionOptions } from '@core/api/widget-api.models';
 import {
   DataKey,
@@ -88,6 +96,9 @@ export class TbFlot {
   private thresholdsSourcesSubscription: IWidgetSubscription;
   private predefinedThresholds: TbFlotThresholdMarking[];
 
+  private labelPatternsSourcesSubscription: IWidgetSubscription;
+  private labelPatternsSourcesData: DatasourceData[];
+
   private plotInited = false;
   private plot: JQueryPlot;
 
@@ -369,6 +380,20 @@ export class TbFlot {
     const yaxesMap: {[units: string]: TbFlotAxisOptions} = {};
     const predefinedThresholds: TbFlotThresholdMarking[] = [];
     const thresholdsDatasources: Datasource[] = [];
+    if (this.settings.customLegendEnabled) {
+      this.labelPatternsSourcesData = [];
+      const labelPatternsDatasources: Datasource[] = [];
+      subscription.datasources.forEach((item) => {
+        let datasource: Datasource = {
+          type: item.type,
+          entityType: item.entityType,
+          entityId: item.entityId,
+          dataKeys: this.settings.dataKeysListForLabels
+        };
+        labelPatternsDatasources.push(datasource);
+      });
+      this.subscribeForLabelPatternsSources(labelPatternsDatasources);
+    }
 
     let tooltipValueFormatFunction: TooltipValueFormatFunction = null;
     if (this.settings.tooltipValueFormatter && this.settings.tooltipValueFormatter.length) {
@@ -506,6 +531,9 @@ export class TbFlot {
           }
         }
       }
+      if (this.labelPatternsSourcesData?.length) {
+        this.substituteLabelPatterns(series, i);
+      }
     }
 
     this.subscribeForThresholdsAttributes(thresholdsDatasources);
@@ -569,6 +597,10 @@ export class TbFlot {
                 this.yaxes[yaxisIndex].keysInfo[i].hidden = series.dataKey.hidden;
                 axisVisibilityChanged = true;
               }
+
+              if (this.labelPatternsSourcesData?.length) {
+                this.substituteLabelPatterns(series, i);
+              }
             }
             if (axisVisibilityChanged) {
               this.options.yaxes.length = 0;
@@ -849,6 +881,60 @@ export class TbFlot {
     }
   }
 
+  private subscribeForLabelPatternsSources(datasources: Datasource[]) {
+    const labelPatternsSourcesSubscriptionOptions: WidgetSubscriptionOptions = {
+      datasources,
+      useDashboardTimewindow: false,
+      type: widgetType.latest,
+      callbacks: {
+        onDataUpdated: (subscription) => {
+          this.labelPatternsParamsDataUpdated(subscription.data)
+        }
+      }
+    };
+    this.ctx.subscriptionApi.createSubscription(labelPatternsSourcesSubscriptionOptions, true).subscribe(
+      (subscription) => {
+        this.labelPatternsSourcesSubscription = subscription;
+      }
+    );
+  }
+
+  private labelPatternsParamsDataUpdated(data: DatasourceData[]) {
+    this.labelPatternsSourcesData = data;
+    for (let i = 0; i < this.subscription.data.length; i++) {
+      const series = this.subscription.data[i] as TbFlotSeries;
+      this.substituteLabelPatterns(series, i);
+    }
+    this.updateData();
+    this.ctx.detectChanges();
+  }
+
+  private substituteLabelPatterns(series: TbFlotSeries, seriesIndex: number) {
+    let seriesLabelPatternsSourcesData = this.labelPatternsSourcesData.filter((item) => {
+      return item.datasource.entityId === series.datasource.entityId;
+    });
+    let label = createLabelFromDatasource(series.datasource, series.dataKey.pattern);
+    for (let i = 0; i < seriesLabelPatternsSourcesData.length; i++) {
+      let keyData = seriesLabelPatternsSourcesData[i];
+      if (keyData && keyData.data && keyData.data[0]) {
+        let attrValue = keyData.data[0][1];
+        let attrName = keyData.dataKey.name;
+        if (isDefined(attrValue) && (attrValue !== null)) {
+          label = insertVariable(label, attrName, attrValue);
+        }
+      }
+    }
+    if (isDefined(this.subscription.legendData)) {
+      let targetLegendKeyIndex = this.subscription.legendData.keys.findIndex((key) => {
+        return key.dataIndex === seriesIndex;
+      });
+      if (targetLegendKeyIndex !== -1) {
+        this.subscription.legendData.keys[targetLegendKeyIndex].dataKey.label = label;
+      }
+    }
+    series.dataKey.label = label;
+  }
+
   private seriesInfoDiv(label: string, color: string, value: any,
                         units: string, trackDecimals: number, active: boolean,
                         percent: number, valueFormatFunction: TooltipValueFormatFunction): JQuery<HTMLElement> {