Merge branch 'master' into hastic-datasource-#120

README.md

@@ -14,11 +14,8 @@
 
 A version of Grafana's default Graph Panel for rendering and labeling Hastic's patterns.
 
-**Please note that we are still in alpha, so features are subject to change**
-
 <img src="https://hastic.io/images/cpu_white.gif" />
 
-
 See also:
 * [Getting started](https://github.com/hastic/hastic-grafana-app/wiki/Getting-started)
 * [Wiki](https://github.com/hastic/hastic-grafana-app/wiki)
@@ -27,16 +24,11 @@ See also:
 * [Installation from source](https://github.com/hastic/hastic-grafana-app/wiki/Installation-from-source)
 * [Changelog](https://github.com/hastic/hastic-grafana-app/wiki/Changelog)
 
-
 # Prerequisites
 
 * [hastic-server](https://github.com/hastic/hastic-server)
 * [Grafana >= 5.4.0](https://grafana.com/grafana/download)
 
+## Support and Consulting
 
-# Credits
-
-Based on 
-
-* [grafana-plugin-template-webpack-typescript](https://github.com/CorpGlory/grafana-plugin-template-webpack-typescript) 
-* [@types/grafana](https://github.com/CorpGlory/types-grafana)
+Commercial support, consulting, professional services — please send us your inquiry at ping@hastic.io

package.json

@@ -1,6 +1,6 @@
 {
   "name": "grafana-hastic-app",
-  "version": "0.2.8",
+  "version": "0.3.0",
   "description": "Hastic app: labeling and rendeting analytics from hastic-server",
   "main": "dist/module",
   "scripts": {
@@ -41,6 +41,7 @@
     "ts-jest": "^22.4.6",
     "ts-loader": "^4.2.0",
     "typescript": "^2.8.3",
+    "url-parse": "^1.4.4",
     "webpack": "4.7.0",
     "webpack-cli": "^2.1.2"
   },

src/config/config_ctrl.ts

@@ -1,13 +1,36 @@
 import template from './template.html';
-
+import { normalizeUrl } from '../utlis';
 
 class ConfigCtrl {
   static template = template;
   appModel: any;
+  appEditCtrl: any;
+
   constructor() {
     if(this.appModel.jsonData === undefined) {
       this.appModel.jsonData = {};
     }
+
+    this.appEditCtrl.setPreUpdateHook(this.preUpdate.bind(this));
+    this.appEditCtrl.setPostUpdateHook(this.postUpdate.bind(this));
+  }
+
+  preUpdate() {
+    this.normalizeUrl();
+    return Promise.resolve();
+  }
+
+  postUpdate() {
+    // TODO: check whether hasticServerUrl is accessible
+    if(!this.appModel.enabled) {
+      return Promise.resolve();
+    }
+
+    return { message: 'Hastic app installed!' };
+  }
+
+  normalizeUrl() {
+    this.appModel.jsonData.hasticServerUrl = normalizeUrl(this.appModel.jsonData.hasticServerUrl);
   }
 }
 

src/config/template.html

@@ -2,6 +2,11 @@
 <div class="gf-form-group">
   <div class="gf-form">
     <label class="gf-form-label width-10">Hastic server url</label>
-    <input type="url" class="gf-form-input max-width-20" ng-model='ctrl.appModel.jsonData.hasticServerUrl'/>
+    <input 
+      type="text" 
+      class="gf-form-input max-width-20" 
+      ng-model="ctrl.appModel.jsonData.hasticServerUrl"
+      ng-blur="ctrl.normalizeUrl"
+    />
   </div>
 </div>

src/panel/graph_panel/axes_editor.ts

@@ -82,7 +82,7 @@ export function axesEditorComponent() {
   return {
     restrict: 'E',
     scope: true,
-    templateUrl: 'public/plugins/hastic-graph-panel/partials/axes_editor.html',
+    templateUrl: 'public/plugins/corpglory-hastic-app/panel/graph_panel/partials/axes_editor.html',
     controller: AxesEditorCtrl,
   };
 }

src/panel/graph_panel/colors.ts

@@ -76,6 +76,16 @@ export const ANALYTIC_UNIT_COLORS = [
   '#f8c171',
 ];
 
+export const DEFAULT_DELETED_SEGMENT_COLOR = '#00f0ff';
+export const REGION_UNLABEL_COLOR_LIGHT = '#d1d1d1';
+export const REGION_UNLABEL_COLOR_DARK = 'white';
+export const LABELED_SEGMENT_BORDER_COLOR = 'black';
+export const DELETED_SEGMENT_BORDER_COLOR = 'black';
+
+export const SEGMENT_FILL_ALPHA = 0.5;
+export const SEGMENT_STROKE_ALPHA = 0.8;
+export const LABELING_MODE_ALPHA = 0.7;
+
 export function hexToHsl(color) {
   return tinycolor(color).toHsl();
 }

src/panel/graph_panel/controllers/analytic_controller.ts

@@ -4,7 +4,8 @@ import { AnalyticService } from '../services/analytic_service'
 
 import {
   AnalyticUnitId, AnalyticUnit,
-  AnalyticUnitsSet, AnalyticSegment, AnalyticSegmentsSearcher, AnalyticSegmentPair
+  AnalyticUnitsSet, AnalyticSegment, AnalyticSegmentsSearcher, AnalyticSegmentPair,
+  LabelingMode
 } from '../models/analytic_unit';
 import { MetricExpanded } from '../models/metric';
 import { DatasourceRequest } from '../models/datasource';
@@ -13,30 +14,29 @@ import { SegmentsSet } from '../models/segment_set';
 import { SegmentArray } from '../models/segment_array';
 import { ServerInfo } from '../models/info';
 import { Threshold, Condition } from '../models/threshold';
+import text from '../partials/help_section.html';
 
-import { ANALYTIC_UNIT_COLORS } from '../colors';
+import {
+  ANALYTIC_UNIT_COLORS,
+  LABELED_SEGMENT_BORDER_COLOR,
+  DELETED_SEGMENT_BORDER_COLOR,
+  SEGMENT_FILL_ALPHA,
+  SEGMENT_STROKE_ALPHA,
+  LABELING_MODE_ALPHA
+} from '../colors';
 
 import { Emitter } from 'grafana/app/core/utils/emitter';
 
 import _ from 'lodash';
 import * as tinycolor from 'tinycolor2';
 
-export const REGION_FILL_ALPHA = 0.7;
-export const REGION_STROKE_ALPHA = 0.9;
-export const REGION_DELETE_COLOR_LIGHT = '#d1d1d1';
-export const REGION_DELETE_COLOR_DARK = 'white';
-const LABELED_SEGMENT_BORDER_COLOR = 'black';
-const DELETED_SEGMENT_FILL_COLOR = 'black';
-const DELETED_SEGMENT_BORDER_COLOR = 'black';
-
-
 export class AnalyticController {
 
   private _analyticUnitsSet: AnalyticUnitsSet;
   private _selectedAnalyticUnitId: AnalyticUnitId = null;
 
   private _labelingDataAddedSegments: SegmentsSet<AnalyticSegment>;
-  private _labelingDataDeletedSegments: SegmentsSet<AnalyticSegment>;
+  private _labelingDataRemovedSegments: SegmentsSet<AnalyticSegment>;
   private _newAnalyticUnit: AnalyticUnit = null;
   private _creatingNewAnalyticType: boolean = false;
   private _savingNewAnalyticUnit: boolean = false;
@@ -53,7 +53,7 @@ export class AnalyticController {
       _panelObject.analyticUnits = _panelObject.anomalyTypes || [];
     }
     this._labelingDataAddedSegments = new SegmentArray<AnalyticSegment>();
-    this._labelingDataDeletedSegments = new SegmentArray<AnalyticSegment>();
+    this._labelingDataRemovedSegments = new SegmentArray<AnalyticSegment>();
     this._analyticUnitsSet = new AnalyticUnitsSet(this._panelObject.analyticUnits);
     this._thresholds = [];
     this.updateThresholds();
@@ -61,6 +61,8 @@ export class AnalyticController {
     // this.analyticUnits.forEach(a => this.runEnabledWaiter(a));
   }
 
+  get helpSectionText() { return text; }
+
   getSegmentsSearcher(): AnalyticSegmentsSearcher {
     return this._segmentsSearcher.bind(this);
   }
@@ -78,6 +80,7 @@ export class AnalyticController {
 
   async sendThresholdParamsToServer(id: AnalyticUnitId) {
     await this.saveThreshold(id);
+    await this._analyticService.runDetect(id);
     await this._runStatusWaiter(this._analyticUnitsSet.byId(id));
   }
 
@@ -86,11 +89,11 @@ export class AnalyticController {
     this._creatingNewAnalyticType = true;
     this._savingNewAnalyticUnit = false;
     if (this.analyticUnits.length === 0) {
-      this._newAnalyticUnit.color = ANALYTIC_UNIT_COLORS[0];
+      this._newAnalyticUnit.labeledColor = ANALYTIC_UNIT_COLORS[0];
     } else {
-      let colorIndex = ANALYTIC_UNIT_COLORS.indexOf(_.last(this.analyticUnits).color) + 1;
+      let colorIndex = ANALYTIC_UNIT_COLORS.indexOf(_.last(this.analyticUnits).labeledColor) + 1;
       colorIndex %= ANALYTIC_UNIT_COLORS.length;
-      this._newAnalyticUnit.color = ANALYTIC_UNIT_COLORS[colorIndex];
+      this._newAnalyticUnit.labeledColor = ANALYTIC_UNIT_COLORS[colorIndex];
     }
   }
 
@@ -105,8 +108,9 @@ export class AnalyticController {
     this._analyticUnitsSet.addItem(this._newAnalyticUnit);
     this._creatingNewAnalyticType = false;
     this._savingNewAnalyticUnit = false;
-    // this.runEnabledWaiter(this._newAnalyticUnit);
-    this._runStatusWaiter(this._newAnalyticUnit);
+    if(this._newAnalyticUnit.detectorType !== 'threshold') {
+      this._runStatusWaiter(this._newAnalyticUnit);
+    }
   }
 
   get creatingNew() { return this._creatingNewAnalyticType; }
@@ -136,6 +140,7 @@ export class AnalyticController {
     await this.disableLabeling();
     this._selectedAnalyticUnitId = id;
     this.labelingUnit.selected = true;
+    this.toggleLabelingMode(LabelingMode.LABELING);
     this.toggleVisibility(id, true);
   }
 
@@ -160,33 +165,37 @@ export class AnalyticController {
     this._labelingDataAddedSegments.getSegments().forEach(s => {
       this.labelingUnit.segments.remove(s.id);
     });
-    this._labelingDataDeletedSegments.getSegments().forEach(s => {
-      s.deleted = false;
+    this._labelingDataRemovedSegments.getSegments().forEach(s => {
+      this.labelingUnit.segments.addSegment(s);
     });
     this.dropLabeling();
   }
 
   dropLabeling() {
     this._labelingDataAddedSegments.clear();
-    this._labelingDataDeletedSegments.clear();
+    this._labelingDataRemovedSegments.clear();
     this.labelingUnit.selected = false;
     this._selectedAnalyticUnitId = null;
     this._tempIdCounted = -1;
   }
 
-  get labelingMode(): boolean {
+  get inLabelingMode(): boolean {
     return this._selectedAnalyticUnitId !== null;
   }
 
-  get labelingDeleteMode(): boolean {
-    if(!this.labelingMode) {
-      return false;
+  get labelingMode(): LabelingMode {
+    if(!this.inLabelingMode) {
+      return LabelingMode.NOT_IN_LABELING_MODE;
     }
-    return this.labelingUnit.deleteMode;
+    return this.labelingUnit.labelingMode;
   }
 
-  addLabelSegment(segment: Segment, deleted?: boolean) {
-    var asegment = this.labelingUnit.addLabeledSegment(segment, deleted);
+  set labelingMode(labelingMode: LabelingMode) {
+    this.labelingUnit.labelingMode = labelingMode;
+  }
+
+  addLabelSegment(segment: Segment, deleted = false) {
+    const asegment = this.labelingUnit.addLabeledSegment(segment, deleted);
     this._labelingDataAddedSegments.addSegment(asegment);
   }
 
@@ -194,11 +203,15 @@ export class AnalyticController {
     return this._analyticUnitsSet.items;
   }
 
-  onAnalyticUnitColorChange(id: AnalyticUnitId, value: string) {
+  onAnalyticUnitColorChange(id: AnalyticUnitId, value: string, deleted: boolean) {
     if(id === undefined) {
       throw new Error('id is undefined');
     }
-    this._analyticUnitsSet.byId(id).color = value;
+    if(deleted) {
+      this._analyticUnitsSet.byId(id).deletedColor = value;
+    } else {
+      this._analyticUnitsSet.byId(id).labeledColor = value;
+    }
   }
 
   fetchAnalyticUnitsStatuses() {
@@ -227,7 +240,7 @@ export class AnalyticController {
     var allSegmentsSet = new SegmentArray(allSegmentsList);
     if(analyticUnit.selected) {
       this._labelingDataAddedSegments.getSegments().forEach(s => allSegmentsSet.addSegment(s));
-      this._labelingDataDeletedSegments.getSegments().forEach(s => allSegmentsSet.remove(s.id));
+      this._labelingDataRemovedSegments.getSegments().forEach(s => allSegmentsSet.remove(s.id));
     }
     analyticUnit.segments = allSegmentsSet;
   }
@@ -240,72 +253,68 @@ export class AnalyticController {
 
     if(
       this._labelingDataAddedSegments.length === 0 &&
-      this._labelingDataDeletedSegments.length === 0
+      this._labelingDataRemovedSegments.length === 0
     ) {
       return [];
     }
 
 
     await this._analyticService.updateMetric(unit.id, this._currentMetric, this._currentDatasource);
-    return this._analyticService.updateSegments(
-      unit.id, this._labelingDataAddedSegments, this._labelingDataDeletedSegments
+    const newIds = await this._analyticService.updateSegments(
+      unit.id, this._labelingDataAddedSegments, this._labelingDataRemovedSegments
     );
+    if(unit.labelingMode !== LabelingMode.UNLABELING) {
+      await this._analyticService.runDetect(unit.id);
+    }
+    return newIds;
   }
 
   // TODO: move to renderer
-  updateFlotEvents(isEditMode, options) {
+  updateFlotEvents(isEditMode: boolean, options: any) {
     if(options.grid.markings === undefined) {
       options.markings = [];
     }
 
     for(var i = 0; i < this.analyticUnits.length; i++) {
-      var analyticUnit = this.analyticUnits[i];
-      var borderColor = addAlphaToRGB(analyticUnit.color, REGION_STROKE_ALPHA);
-      var fillColor = addAlphaToRGB(analyticUnit.color, REGION_FILL_ALPHA);
-      var segments = analyticUnit.segments.getSegments();
+      const analyticUnit = this.analyticUnits[i];
       if(!analyticUnit.visible) {
         continue;
       }
-      if(isEditMode && this.labelingMode) {
-        if(analyticUnit.selected) {
-          borderColor = addAlphaToRGB(borderColor, 0.7);
-          fillColor = addAlphaToRGB(borderColor, 0.7);
-        } else {
-          continue;
-        }
-      }
-
-      var rangeDist = +options.xaxis.max - +options.xaxis.min;
 
+      let defaultBorderColor = addAlphaToRGB(analyticUnit.labeledColor, SEGMENT_STROKE_ALPHA);
+      let defaultFillColor = addAlphaToRGB(analyticUnit.labeledColor, SEGMENT_FILL_ALPHA);
       let labeledSegmentBorderColor = tinycolor(LABELED_SEGMENT_BORDER_COLOR).toRgbString();
-      labeledSegmentBorderColor = addAlphaToRGB(labeledSegmentBorderColor, REGION_STROKE_ALPHA);
-      let deletedSegmentFillColor = tinycolor(DELETED_SEGMENT_FILL_COLOR).toRgbString();
-      deletedSegmentFillColor = addAlphaToRGB(deletedSegmentFillColor, REGION_STROKE_ALPHA);
+      labeledSegmentBorderColor = addAlphaToRGB(labeledSegmentBorderColor, SEGMENT_STROKE_ALPHA);
+      let deletedSegmentFillColor = tinycolor(analyticUnit.deletedColor).toRgbString();
+      deletedSegmentFillColor = addAlphaToRGB(deletedSegmentFillColor, SEGMENT_FILL_ALPHA);
       let deletedSegmentBorderColor = tinycolor(DELETED_SEGMENT_BORDER_COLOR).toRgbString();
-      deletedSegmentBorderColor = addAlphaToRGB(deletedSegmentBorderColor, REGION_STROKE_ALPHA);
+      deletedSegmentBorderColor = addAlphaToRGB(deletedSegmentBorderColor, SEGMENT_STROKE_ALPHA);
+
+      if(isEditMode && this.inLabelingMode && analyticUnit.selected) {
+        defaultBorderColor = addAlphaToRGB(defaultBorderColor, LABELING_MODE_ALPHA);
+        defaultFillColor = addAlphaToRGB(defaultFillColor, LABELING_MODE_ALPHA);
+        labeledSegmentBorderColor = addAlphaToRGB(labeledSegmentBorderColor, LABELING_MODE_ALPHA);
+        deletedSegmentFillColor = addAlphaToRGB(deletedSegmentFillColor, LABELING_MODE_ALPHA);
+        deletedSegmentBorderColor = addAlphaToRGB(deletedSegmentBorderColor, LABELING_MODE_ALPHA);
+      }
+
+      const segments = analyticUnit.segments.getSegments();
+      const rangeDist = +options.xaxis.max - +options.xaxis.min;
 
       segments.forEach(s => {
-        let segmentBorderColor;
-        let segmentFillColor = fillColor;
+        let segmentBorderColor = defaultBorderColor;
+        let segmentFillColor = defaultFillColor;
 
-        if(this.labelingDeleteMode) {
-          if(s.deleted) {
-            segmentBorderColor = deletedSegmentBorderColor;
-            segmentFillColor = deletedSegmentFillColor;
-          }
+        if(s.deleted) {
+          segmentBorderColor = deletedSegmentBorderColor;
+          segmentFillColor = deletedSegmentFillColor;
         } else {
-          if(s.deleted) {
-            return;
+          if(s.labeled) {
+            segmentBorderColor = labeledSegmentBorderColor;
           }
         }
 
-        if(s.labeled) {
-          segmentBorderColor = labeledSegmentBorderColor;
-        } else {
-          segmentBorderColor = borderColor;
-        }
-
-        var expanded = s.expandDist(rangeDist, 0.01);
+        const expanded = s.expandDist(rangeDist, 0.01);
         options.grid.markings.push({
           xaxis: { from: expanded.from, to: expanded.to },
           color: segmentFillColor
@@ -324,20 +333,24 @@ export class AnalyticController {
   }
 
   deleteLabelingAnalyticUnitSegmentsInRange(from: number, to: number) {
-    var allRemovedSegs = this.labelingUnit.removeSegmentsInRange(from, to);
+    const allRemovedSegs = this.labelingUnit.removeSegmentsInRange(from, to);
     allRemovedSegs.forEach(s => {
       if(!this._labelingDataAddedSegments.has(s.id)) {
-        this._labelingDataDeletedSegments.addSegment(s);
+        this._labelingDataRemovedSegments.addSegment(s);
       }
     });
     this._labelingDataAddedSegments.removeInRange(from, to);
   }
 
-  toggleDeleteMode() {
-    if(!this.labelingMode) {
-      throw new Error('Cant enter delete mode is labeling mode disabled');
+  toggleLabelingMode(labelingMode: LabelingMode) {
+    if(!this.inLabelingMode) {
+      throw new Error(`Can't enter ${labelingMode} mode when labeling mode is disabled`);
+    }
+    if(this.labelingUnit.labelingMode === labelingMode) {
+      this.labelingUnit.labelingMode = LabelingMode.LABELING;
+    } else {
+      this.labelingUnit.labelingMode = labelingMode;
     }
-    this.labelingUnit.deleteMode = !this.labelingUnit.deleteMode;
   }
 
   async removeAnalyticUnit(id: AnalyticUnitId, silent: boolean = false) {

src/panel/graph_panel/graph_ctrl.ts

@@ -7,7 +7,7 @@ import { GraphLegend } from './graph_legend';
 import { DataProcessor } from './data_processor';
 import { MetricExpanded } from './models/metric';
 import { DatasourceRequest } from './models/datasource';
-import { AnalyticUnitId, AnalyticUnit } from './models/analytic_unit';
+import { AnalyticUnitId, AnalyticUnit, LabelingMode } from './models/analytic_unit';
 import { AnalyticService } from './services/analytic_service';
 import { AnalyticController } from './controllers/analytic_controller';
 import { PanelInfo } from './models/info';
@@ -35,7 +35,6 @@ class GraphCtrl extends MetricsPanelCtrl {
   private _datasourceRequest: DatasourceRequest;
   private _datasources: any;
 
-  private _panelPath: any;
   private _renderError: boolean = false;
 
   // annotationsPromise: any;
@@ -157,19 +156,28 @@ class GraphCtrl extends MetricsPanelCtrl {
     this.events.on('init-edit-mode', this.onInitEditMode.bind(this));
   }
 
-  rebindDKey() {
+  rebindKeys() {
+    const dKeyCode = 68;
+    const uKeyCode = 85;
+
     $(document).off('keydown.hasticDKey');
     $(document).on('keydown.hasticDKey', (e) => {
-      // 68 is 'd' key kode
-      if(e.keyCode === 68) {
+      if(e.keyCode === dKeyCode) {
         this.onDKey();
       }
     });
+
+    $(document).off('keydown.hasticUKey');
+    $(document).on('keydown.hasticUKey', (e) => {
+      if(e.keyCode === uKeyCode) {
+        this.onUKey();
+      }
+    });
   }
 
   editPanel() {
     super.editPanel();
-    this.rebindDKey();
+    this.rebindKeys();
   }
 
   async getBackendURL(): Promise<string> {
@@ -264,6 +272,9 @@ class GraphCtrl extends MetricsPanelCtrl {
         await this.analyticsController.removeAnalyticUnit(analyticUnit.id, true);
       }
       if(analyticUnit.status === 'READY') {
+        if(this.range === undefined) {
+          this.updateTimeRange();
+        }
         await this.analyticsController.fetchSegments(analyticUnit, +this.range.from, +this.range.to);
       }
       this.render(this.seriesList);
@@ -300,7 +311,7 @@ class GraphCtrl extends MetricsPanelCtrl {
 
   onInitEditMode() {
 
-    this.rebindDKey(); // a small hask: bind if we open page in edit mode
+    this.rebindKeys(); // a small hask: bind if we open page in edit mode
 
     const partialPath = this.panelPath + '/partials';
     this.addEditorTab('Analytics', `${partialPath}/tab_analytics.html`, 2);
@@ -581,11 +592,11 @@ class GraphCtrl extends MetricsPanelCtrl {
     this.analyticsController.fetchAnalyticUnitName(analyticUnit);
   }
 
-  onColorChange(id: AnalyticUnitId, value: string) {
+  onColorChange(id: AnalyticUnitId, deleted: boolean, value: string) {
     if(id === undefined) {
       throw new Error('id is undefined');
     }
-    this.analyticsController.onAnalyticUnitColorChange(id, value);
+    this.analyticsController.onAnalyticUnitColorChange(id, value, deleted);
     this.render();
   }
 
@@ -624,10 +635,18 @@ class GraphCtrl extends MetricsPanelCtrl {
   }
 
   onDKey() {
-    if(!this.analyticsController.labelingMode) {
+    if(!this.analyticsController.inLabelingMode) {
       return;
     }
-    this.analyticsController.toggleDeleteMode();
+    this.analyticsController.toggleLabelingMode(LabelingMode.DELETING);
+    this.refresh();
+  }
+
+  onUKey() {
+    if(!this.analyticsController.inLabelingMode) {
+      return;
+    }
+    this.analyticsController.toggleLabelingMode(LabelingMode.UNLABELING);
     this.refresh();
   }
 
@@ -640,8 +659,12 @@ class GraphCtrl extends MetricsPanelCtrl {
     const datasource = await this._getDatasourceByName(this.panel.datasource);
     const backendUrl = await this.getBackendURL();
 
+    let grafanaVersion = 'unknown';
+    if(_.has(window, 'grafanaBootData.settings.buildInfo.version')) {
+      grafanaVersion = window.grafanaBootData.settings.buildInfo.version;
+    }
     this._panelInfo = {
-      grafanaVersion: this.contextSrv.version,
+      grafanaVersion,
       grafanaUrl: window.location.host,
       datasourceType: datasource.type,
       hasticServerUrl: backendUrl

src/panel/graph_panel/graph_renderer.ts

@@ -1,15 +1,17 @@
 import { Segment } from './models/segment';
+import { LabelingMode } from './models/analytic_unit';
 import { GraphTooltip } from './graph_tooltip';
 
 import { convertValuesToHistogram, getSeriesValues } from './histogram';
 import {
-  AnalyticController,
-  REGION_FILL_ALPHA,
-  REGION_STROKE_ALPHA,
-  REGION_DELETE_COLOR_LIGHT,
-  REGION_DELETE_COLOR_DARK
+  AnalyticController
 } from './controllers/analytic_controller';
 
+import {
+  REGION_UNLABEL_COLOR_LIGHT,
+  REGION_UNLABEL_COLOR_DARK
+} from './colors';
+
 import { GraphCtrl } from './graph_ctrl';
 
 import 'jquery';
@@ -140,20 +142,26 @@ export class GraphRenderer {
 
     if(this._isHasticEvent(selectionEvent)) {
       this.plot.clearSelection();
-      var id = this._analyticController.getNewTempSegmentId();
-      var segment = new Segment(
+      const id = this._analyticController.getNewTempSegmentId();
+      const segment = new Segment(
         id,
         Math.round(selectionEvent.xaxis.from),
         Math.round(selectionEvent.xaxis.to)
       );
-      if(this._analyticController.labelingDeleteMode) {
+      if(this._analyticController.labelingMode === LabelingMode.DELETING) {
+        this._analyticController.deleteLabelingAnalyticUnitSegmentsInRange(
+          segment.from, segment.to
+        );
+        this._analyticController.addLabelSegment(segment, true);
+      } 
+      if(this._analyticController.labelingMode === LabelingMode.LABELING) {
+        this._analyticController.addLabelSegment(segment, false);
+      }
+      if(this._analyticController.labelingMode === LabelingMode.UNLABELING) {
         this._analyticController.deleteLabelingAnalyticUnitSegmentsInRange(
           segment.from, segment.to
         );
       } 
-      this._analyticController.addLabelSegment(
-        segment, this._analyticController.labelingDeleteMode
-      );
 
       this.renderPanel();
       return;
@@ -336,21 +344,22 @@ export class GraphRenderer {
   }
 
   private _chooseSelectionColor(e) {
-    var color = COLOR_SELECTION;
-    var fillAlpha = 0.4;
-    var strokeAlpha = 0.4;
+    let color = COLOR_SELECTION;
+
     if(this._isHasticEvent(e)) {
-      if(this._analyticController.labelingDeleteMode) {
+      if(this._analyticController.labelingMode === LabelingMode.DELETING) {
+        color = this._analyticController.labelingUnit.deletedColor;
+      }
+      if(this._analyticController.labelingMode === LabelingMode.LABELING) {
+        color = this._analyticController.labelingUnit.labeledColor;
+      }
+      if(this._analyticController.labelingMode === LabelingMode.UNLABELING) {
         color = this.contextSrv.user.lightTheme ?
-          REGION_DELETE_COLOR_LIGHT :
-          REGION_DELETE_COLOR_DARK;
-      } else {
-        color = this._analyticController.labelingUnit.color;
+          REGION_UNLABEL_COLOR_LIGHT :
+          REGION_UNLABEL_COLOR_DARK;
       }
-      fillAlpha = REGION_FILL_ALPHA;
-      strokeAlpha = REGION_STROKE_ALPHA;
     }
-    this.plot.getOptions().selection.color = color
+    this.plot.getOptions().selection.color = color;
   }
 
   private _buildFlotPairs(data) {
@@ -807,7 +816,7 @@ export class GraphRenderer {
   private _isHasticEvent(obj: any) {
     return (obj.ctrlKey || obj.metaKey) &&
            this.contextSrv.isEditor &&
-           this._analyticController.labelingMode;
+           this._analyticController.inLabelingMode;
   }
 
 }

src/panel/graph_panel/graph_tooltip.ts

@@ -200,12 +200,8 @@ export class GraphTooltip {
       var from = this.dashboard.formatDate(s.segment.from, 'HH:mm:ss.SSS');
       var to = this.dashboard.formatDate(s.segment.to, 'HH:mm:ss.SSS');
 
-      if(s.segment.deleted && !s.analyticUnit.deleteMode) {
-        return;
-      }
-
       let icon;
-      if (s.segment.labeled) {
+      if(s.segment.labeled) {
         icon = 'fa-thumb-tack';
       } else if (s.segment.deleted) {
         icon = 'fa-trash';
@@ -215,7 +211,7 @@ export class GraphTooltip {
       result += `
         <div class="graph-tooltip-list-item">
           <div class="graph-tooltip-series-name">
-            <i class="fa fa-exclamation" style="color:${s.analyticUnit.color}"></i>
+            <i class="fa fa-exclamation" style="color:${s.analyticUnit.labeledColor}"></i>
             ${s.analyticUnit.name}:
           </div>
           <div class="graph-tooltip-value">

src/panel/graph_panel/models/analytic_unit.ts

@@ -2,11 +2,18 @@ import { SegmentsSet } from './segment_set';
 import { SegmentArray } from './segment_array';
 import { Segment, SegmentId } from './segment';
 
-import { ANALYTIC_UNIT_COLORS } from '../colors';
+import { ANALYTIC_UNIT_COLORS, DEFAULT_DELETED_SEGMENT_COLOR } from '../colors';
 
 import _ from 'lodash';
 
 
+export enum LabelingMode {
+  LABELING = 'LABELING',
+  UNLABELING = 'UNLABELING',
+  DELETING = 'DELETING',
+  NOT_IN_LABELING_MODE = 'NOT_IN_LABELING_MODE'
+};
+
 export type AnalyticSegmentPair = { analyticUnit: AnalyticUnit, segment: AnalyticSegment };
 export type AnalyticSegmentsSearcher = (point: number, rangeDist: number) => AnalyticSegmentPair[];
 
@@ -23,8 +30,8 @@ export class AnalyticSegment extends Segment {
 
 export class AnalyticUnit {
 
+  private _labelingMode: LabelingMode = LabelingMode.LABELING;
   private _selected: boolean = false;
-  private _deleteMode: boolean = false;
   private _saving: boolean = false;
   private _segmentSet = new SegmentArray<AnalyticSegment>();
   private _status: string;
@@ -36,7 +43,8 @@ export class AnalyticUnit {
     }
     _.defaults(this._panelObject, {
       name: 'AnalyticUnitName',
-      color: ANALYTIC_UNIT_COLORS[0],
+      labeledColor: ANALYTIC_UNIT_COLORS[0],
+      deletedColor: DEFAULT_DELETED_SEGMENT_COLOR,
       detectorType: 'pattern',
       type: 'GENERAL',
       alert: false
@@ -58,8 +66,11 @@ export class AnalyticUnit {
   set confidence(value: number) { this._panelObject.confidence = value; }
   get confidence(): number { return this._panelObject.confidence; }
 
-  set color(value: string) { this._panelObject.color = value; }
-  get color(): string { return this._panelObject.color; }
+  set labeledColor(value: string) { this._panelObject.labeledColor = value; }
+  get labeledColor(): string { return this._panelObject.labeledColor; }
+
+  set deletedColor(value: string) { this._panelObject.deletedColor = value; }
+  get deletedColor(): string { return this._panelObject.deletedColor; }
 
   set alert(value: boolean) { this._panelObject.alert = value; }
   get alert(): boolean { return this._panelObject.alert; }
@@ -67,8 +78,8 @@ export class AnalyticUnit {
   get selected(): boolean { return this._selected; }
   set selected(value: boolean) { this._selected = value; }
 
-  get deleteMode(): boolean { return this._deleteMode; }
-  set deleteMode(value: boolean) { this._deleteMode = value; }
+  get labelingMode(): LabelingMode { return this._labelingMode; }
+  set labelingMode(value: LabelingMode) { this._labelingMode = value; }
 
   get saving(): boolean { return this._saving; }
   set saving(value: boolean) { this._saving = value; }
@@ -81,16 +92,13 @@ export class AnalyticUnit {
   }
 
   addLabeledSegment(segment: Segment, deleted: boolean): AnalyticSegment {
-    var asegment = new AnalyticSegment(true, segment.id, segment.from, segment.to, deleted);
+    const asegment = new AnalyticSegment(!deleted, segment.id, segment.from, segment.to, deleted);
     this._segmentSet.addSegment(asegment);
     return asegment;
   }
 
   removeSegmentsInRange(from: number, to: number): AnalyticSegment[] {
     let deletedSegments = this._segmentSet.removeInRange(from, to);
-    deletedSegments.forEach(s => {
-      s.deleted = true;
-    });
     return deletedSegments;
   }
 

src/panel/graph_panel/models/segment_array.ts

@@ -47,7 +47,7 @@ export class SegmentArray<T extends Segment> implements SegmentsSet<T> {
 
   findSegments(point: number, rangeDist: number): T[] {
     return this._segments.filter(s => {
-      var expanded = s.expandDist(rangeDist, 0.01);
+      const expanded = s.expandDist(rangeDist, 0.01);
       return (expanded.from <= point) && (point <= expanded.to);
     });
   }

src/panel/graph_panel/partials/help_section.html

@@ -0,0 +1,24 @@
+<pre>
+  <b>For usage instructions:</b> <a class="text-link" href="https://github.com/hastic/hastic-grafana-app/wiki/Analytic-units">Visit our <b>Wiki</b> page</a>.
+  
+  <b>If you encounter any problems:</b>
+  Look for solution or create a new Issue <a href="https://github.com/hastic/hastic-grafana-app/issues"><b>here</b></a>.
+  
+  <b>Available labeling patterns examples:</b>
+  1) General: patterns in your data that don't fall under any of provided built-in patterns.
+  
+  2) Peaks: a sharp increase to a certain single value, followed by a return to the original value.
+  <!-- TODO use ng-src="ctrl.pluginPath/..." instead -->
+  <img src="public/plugins/corpglory-hastic-app/img/peaks.jpg">
+  
+  3) Troughs: a sharp decrease to a certain single value, followed by a return to the original value.
+  <img src="public/plugins/corpglory-hastic-app/img/troughs.jpg">
+  
+  4) Jumps: increase to a certain value without returning to the original state.
+  <img src="public/plugins/corpglory-hastic-app/img/jumps.jpg">
+  
+  5) Drops: decrease to a certain value without returning to the original state.
+  <img src="public/plugins/corpglory-hastic-app/img/drops.jpg">
+  
+  6) Custom: any custom model created and imported by you.
+</pre>

src/panel/graph_panel/partials/tab_analytics.html

@@ -11,7 +11,7 @@
   <div class="editor-row">
     <div class="gf-form" ng-repeat="analyticUnit in ctrl.analyticsController.analyticUnits">
 
-      <label class="gf-form-label width-6">
+      <label class="gf-form-label width-5">
         <i class="fa fa-info" bs-tooltip="'Analytic unit id: ' + analyticUnit.id"></i>
         &nbsp; Name
       </label>
@@ -21,9 +21,9 @@
         ng-change="ctrl.onAnalyticUnitNameChange(analyticUnit)"
       >
 
-      <label class="gf-form-label width-8"> Type </label>
+      <label class="gf-form-label width-4"> Type </label>
       <div class="gf-form-select-wrapper">
-        <select class="gf-form-input width-12"
+        <select class="gf-form-input width-10"
           ng-model="analyticUnit.type"
           ng-options="type.value as type.name for type in ctrl.analyticUnitTypes[analyticUnit.detectorType]"
           ng-disabled="true"
@@ -39,11 +39,22 @@
       />
       -->
 
-      <label class="gf-form-label width-6"> Color </label>
+      <label class="gf-form-label width-8"> Positive Color </label>
       <span class="gf-form-label">
         <color-picker
-          color="analyticUnit.color"
-          onChange="ctrl.onColorChange.bind(ctrl, analyticUnit.id)"
+          color="analyticUnit.labeledColor"
+          onChange="ctrl.onColorChange.bind(ctrl, analyticUnit.id, false)"
+        />
+      </span>
+
+      <!-- Hack to avoid Grafana's .gf-form-label + .gf-form-label css. Fix for https://github.com/hastic/hastic-grafana-app/issues/192 -->
+      <div ng-if="analyticUnit.detectorType === 'pattern'"></div>
+
+      <label ng-if="analyticUnit.detectorType === 'pattern'" class="gf-form-label width-8"> Negative Color </label>
+      <span ng-if="analyticUnit.detectorType === 'pattern'"  class="gf-form-label">
+        <color-picker
+          color="analyticUnit.deletedColor"
+          onChange="ctrl.onColorChange.bind(ctrl, analyticUnit.id, true)"
         />
       </span>
 
@@ -58,12 +69,21 @@
         >
           <i class="fa fa-bar-chart" ng-if="!analyticUnit.saving"></i>
           <i class="fa fa-spinner fa-spin" ng-if="analyticUnit.saving"></i>
-          <b ng-if="analyticUnit.selected && !analyticUnit.deleteMode && !analyticUnit.saving"> labeling </b>
-          <b ng-if="analyticUnit.selected && analyticUnit.deleteMode && !analyticUnit.saving"> deleting </b>
           <b ng-if="analyticUnit.saving" ng-disabled="true"> saving... </b>
         </a>
       </label>
 
+      <select class="gf-form-input width-10"
+        ng-model="ctrl.analyticsController.labelingMode"
+        ng-options="type.value as type.name for type in [
+          { name:'Label Positive', value: 'LABELING' }, 
+          { name:'Label Negative', value: 'DELETING' },
+          { name:'Unlabel', value: 'UNLABELING' }
+        ]"
+        ng-if="analyticUnit.selected && !analyticUnit.saving"
+        ng-disabled="analyticUnit.status === 'LEARNING'"
+      />
+
       <select class="gf-form-input width-7"
         ng-model="ctrl.analyticsController.getThreshold(analyticUnit.id).condition"
         ng-options="type for type in ctrl.analyticsController.conditions"
@@ -88,10 +108,9 @@
         Apply
       </button>
 
-      <label class="gf-form-label">
+      <label class="gf-form-label" ng-hide="analyticUnit.selected">
         <a
           ng-if="analyticUnit.visible"
-          ng-disabled="analyticUnit.selected"
           bs-tooltip="'Hide. It`s visible now.'"
           ng-click="ctrl.onToggleVisibility(analyticUnit.id)"
           class="pointer"
@@ -101,7 +120,6 @@
 
         <a
           ng-if="!analyticUnit.visible"
-          ng-disabled="analyticUnit.selected"
           bs-tooltip="'Show. It`s hidden now.'"
           ng-click="ctrl.onToggleVisibility(analyticUnit.id)"
           class="pointer"
@@ -147,7 +165,7 @@
 
       <label class="gf-form-label width-8"> Detector Type </label>
       <div class="gf-form-select-wrapper">
-        <select class="gf-form-input width-12"
+        <select class="gf-form-input width-10"
           ng-model="ctrl.analyticsController.newAnalyticUnit.detectorType"
           ng-options="analyticUnitDetectorType for analyticUnitDetectorType in ctrl.analyticUnitDetectorTypes"
           ng-change="ctrl.analyticsController.onAnalyticUnitDetectorChange(ctrl.analyticUnitTypes);"
@@ -156,7 +174,7 @@
 
       <label class="gf-form-label width-8"> Type </label>
       <div class="gf-form-select-wrapper">
-        <select class="gf-form-input width-12"
+        <select class="gf-form-input width-10"
           ng-model="ctrl.analyticsController.newAnalyticUnit.type"
           ng-options="
             type.value as type.name
@@ -188,45 +206,5 @@
     </button>
   </div>
 
-<div class="gf-form" ng-show="ctrl.showHelp" >
-  <pre class="gf-form-pre alert alert-info">
-    <b>Adding Analytic Units:</b>
-        1) Click on 'Add Analytic Unit' button to add an analytic unit.
-        2) Type in desired analytic unit name into provided 'Name' field.
-        3) Choose pattern type from the 'Type' dropdown menu. Pattern types explained below.
-        4) Click 'create' button.
-
-    <b>Labeling segments:</b>
-        1) Click on the chart symbol <img ng-src="{{ctrl.pluginPath}}/img/chartSymbol.png"> to enter labeling mode.
-        2) Hold down 'Ctrl' button on your keyboard and hold down left mouse button while dragging to label segments manually. Release LMB to finish labeling the segment.
-        3) After all of the needed segments are labeled click on the chart symbol again to exit labeling mode.
-
-        <b>Hastic will now start learning, and after a short while you will see the results on your graph.</b>
-
-    <b>Deleting segments:</b>
-        1) Click on the chart symbol to enter labeling mode. (skip this step if you are already in labeling mode)
-        2) Press 'D' key twice to switch from <img ng-src="{{ctrl.pluginPath}}/img/labeling.jpg"> to <img ng-src="{{ctrl.pluginPath}}/img/deleting.jpg">.
-        3) Hold down 'Ctrl' button on your keyboard and hold down left mouse button while dragging to mark segments for deletion.
-        4) After all of the needed segments are deleted click on the chart symbol again to exit labeling mode.
-
-        <b>Hastic will now start learning again, based on updated segments list.</b>
-
-    <b>Available labeling patterns:</b>
-      1) General: patterns in your data that don't fall under any of provided built-in patterns.
-
-      2) Peaks: a sharp increase to a certain single value, followed by a return to the original value.
-      <img ng-src="{{ctrl.pluginPath}}/img/peaks.jpg">
-
-      3) Troughs: a sharp decrease to a certain single value, followed by a return to the original value.
-      <img ng-src="{{ctrl.pluginPath}}/img/troughs.jpg">
-
-      4) Jumps: increase to a certain value without returning to the original state.
-      <img ng-src="{{ctrl.pluginPath}}/img/jumps.jpg">
-
-      5) Drops: decrease to a certain value without returning to the original state.
-      <img ng-src="{{ctrl.pluginPath}}/img/drops.jpg">
-
-      6) Custom: any custom model created and imported by you.
-      </pre>
-</div>
+<div class="gf-form" ng-show="ctrl.showHelp" ng-bind-html="ctrl.analyticsController.helpSectionText"></div>
 

src/panel/graph_panel/plugin.json

@@ -4,8 +4,8 @@
   "id": "corpglory-hastic-graph-panel",
   "info": {
     "logos": {
-      "small": "corpglory-hastic-app/img/icn-graph-panel.png",
-      "large": "corpglory-hastic-app/img/icn-graph-panel.png"
+      "small": "../corpglory-hastic-app/img/icn-graph-panel.png",
+      "large": "../corpglory-hastic-app/img/icn-graph-panel.png"
     }
   }
 }

src/panel/graph_panel/services/analytic_service.ts

@@ -66,20 +66,22 @@ export class AnalyticService {
   }
 
   async updateSegments(
-    id: AnalyticUnitId, addedSegments: SegmentsSet<Segment>, removedSegments: SegmentsSet<Segment>
+    id: AnalyticUnitId, addedSegments: SegmentsSet<AnalyticSegment>, removedSegments: SegmentsSet<AnalyticSegment>
   ): Promise<SegmentId[]> {
-    const getJSONs = (segs: SegmentsSet<Segment>) => segs.getSegments().map(segment => ({
+    const getJSONs = (segs: SegmentsSet<AnalyticSegment>) => segs.getSegments().map(segment => ({
       from: segment.from,
-      to: segment.to
+      to: segment.to,
+      labeled: segment.labeled,
+      deleted: segment.deleted
     }));
 
-    var payload = {
+    const payload = {
       id,
       addedSegments: getJSONs(addedSegments),
       removedSegments: removedSegments.getSegments().map(s => s.id)
     };
 
-    var data = await this.patch('/segments', payload);
+    const data = await this.patch('/segments', payload);
     if(data.addedIds === undefined) {
       throw new Error('Server didn`t send addedIds');
     }
@@ -158,6 +160,10 @@ export class AnalyticService {
     return this.patch('/analyticUnits', updateObj);
   }
 
+  async runDetect(id: AnalyticUnitId) {
+    return this.post('/analyticUnits/detect', { id });
+  }
+
   private async _analyticRequest(method: string, url: string, data?: any) {
     try {
       method = method.toUpperCase();

src/plugin.json

@@ -11,7 +11,7 @@
       "small": "img/icn-graph-panel.png",
       "large": "img/icn-graph-panel.png"
     },
-    "version": "0.2.8"
+    "version": "0.3.0"
   },
   "includes": [
     { "type": "panel", "name": "Hastic Graph Panel" }

src/utlis.ts

@@ -0,0 +1,29 @@
+import url from 'url-parse';
+
+export function normalizeUrl(grafanaUrl: string) {
+  if(!grafanaUrl) {
+    return grafanaUrl;
+  }
+  let urlObj = new url(grafanaUrl, {});
+  if(urlObj.protocol !== 'http:' && urlObj.protocol !== 'https:') {
+    grafanaUrl = `http://${grafanaUrl}`;
+    urlObj = new url(grafanaUrl, {});
+    console.log('No protocol provided in GRAFANA_URL -> inserting "http://"');
+  }
+  if(urlObj.slashes === false) {
+    urlObj = new url(`${urlObj.protocol}//${urlObj.pathname}`, {});
+    console.log('No slashes were provided after the protocol -> inserting slashes');
+  } 
+  if(urlObj.pathname.slice(-1) === '/') {
+    urlObj.pathname = urlObj.pathname.slice(0, -1);
+    console.log('Removing the slash at the end of GRAFANA_URL');
+  }
+  let finalUrl = `${urlObj.protocol}//${urlObj.hostname}`;
+  if(urlObj.port !== '') {
+    finalUrl = finalUrl + ':' + urlObj.port;
+  }
+  if(urlObj.pathname !== '') {
+    finalUrl = finalUrl + urlObj.pathname;
+  }
+  return finalUrl;
+}

tests/analytic_controller.jest.ts

@@ -9,7 +9,7 @@ describe('AnalyticController', function () {
   it('should create analytic units with colors from palette', async function () {
     for (let color of ANALYTIC_UNIT_COLORS) {
       analyticController.createNew();
-      expect(analyticController.newAnalyticUnit.color).toBe(color);
+      expect(analyticController.newAnalyticUnit.labeledColor).toBe(color);
       await analyticController.saveNew({} as MetricExpanded, {} as DatasourceRequest, '');
     }
   });
@@ -29,19 +29,19 @@ describe('AnalyticController', function () {
     let auArray = analyticController.analyticUnits;
     analyticController.createNew();
     await analyticController.saveNew({} as MetricExpanded, {} as DatasourceRequest, '');
-    expect(auArray[auArray.length - 2].panelObject.color).not.toBe(auArray[auArray.length - 1].panelObject.color);
+    expect(auArray[auArray.length - 2].panelObject.labeledColor).not.toBe(auArray[auArray.length - 1].panelObject.labeledColor);
   });
 
-  it('should set different color to newly created Analytic Unit, afer LAST AU was deleted', async function () {
+  it('should set different color to newly created Analytic Unit, after LAST AU was deleted', async function () {
     let auArray = analyticController.analyticUnits;
     auArray.splice(-1, 1);
     analyticController.createNew();
     await analyticController.saveNew({} as MetricExpanded, {} as DatasourceRequest, '');
-    expect(auArray[auArray.length - 2].panelObject.color).not.toBe(auArray[auArray.length - 1].panelObject.color);
+    expect(auArray[auArray.length - 2].panelObject.labeledColor).not.toBe(auArray[auArray.length - 1].panelObject.labeledColor);
   });
 
   it('should change color on choosing from palette', function () {
-    analyticController.onAnalyticUnitColorChange('1', 'red');
-    expect(analyticController.analyticUnits[0].color).toBe('red');
+    analyticController.onAnalyticUnitColorChange('1', 'red', false);
+    expect(analyticController.analyticUnits[0].labeledColor).toBe('red');
   });
 });

tests/setup_tests.ts

@@ -25,5 +25,7 @@ analyticService.postNewItem = async function (newItem: AnalyticUnit, metric: Met
 
 export const analyticController = new AnalyticController({}, analyticService, new Emitter());
 
+jest.mock('../src/panel/graph_panel/partials/help_section.html', () => '');
+
 console.log = jest.fn();
 console.error = jest.fn();

tests/utils.jest.ts

@@ -0,0 +1,26 @@
+import { normalizeUrl } from '../src/utlis';
+
+describe('Normalize URL', function() {
+  const cases = [
+    { value: '127.0.0.1:8000', expected: 'http://127.0.0.1:8000' },
+    { value: '127.0.0.1:8000/', expected: 'http://127.0.0.1:8000' },
+    { value: 'localhost:8000', expected: 'http://localhost:8000' },
+    { value: 'localhost:8000/', expected: 'http://localhost:8000' },
+    { value: 'http://localhost:3000', expected: 'http://localhost:3000' },
+    { value: 'http://localhost:3000/', expected: 'http://localhost:3000' },
+    { value: 'https://localhost:8000', expected: 'https://localhost:8000' },
+    { value: 'https://localhost:8000/', expected: 'https://localhost:8000' },
+    { value: 'http://example.com', expected: 'http://example.com' },
+    { value: 'http://example.com/', expected: 'http://example.com' },
+    { value: 'https://example.com', expected: 'https://example.com' },
+    { value: 'https://example.com/', expected: 'https://example.com' },
+    { value: 'https://example.com/grafana', expected: 'https://example.com/grafana' },
+    { value: 'https://example.com/grafana/', expected: 'https://example.com/grafana' },
+  ];
+
+  it('should normalize URLs correctly', function() {
+    cases.forEach(testCase => {
+      expect(normalizeUrl(testCase.value)).toBe(testCase.expected);
+    });
+  });
+});