Errors from the beginning #212 (#213)

* possible non-set analyticService and fixes for that

* fx test and sapces

src/panel/graph_panel/controllers/analytic_controller.ts

@@ -12,7 +12,7 @@ import { DatasourceRequest } from '../models/datasource';
 import { Segment, SegmentId } from '../models/segment';
 import { SegmentsSet } from '../models/segment_set';
 import { SegmentArray } from '../models/segment_array';
-import { ServerInfo } from '../models/info';
+import { ServerInfo, ServerInfoUnknown } from '../models/info';
 import { Threshold, Condition } from '../models/threshold';
 import text from '../partials/help_section.html';
 
@@ -48,7 +48,11 @@ export class AnalyticController {
   private _currentDatasource: DatasourceRequest;
   private _thresholds: Threshold[];
 
-  constructor(private _panelObject: any, private _analyticService: AnalyticService, private _emitter: Emitter) {
+  constructor(
+    private _panelObject: any,
+    private _emitter: Emitter,
+    private _analyticService?: AnalyticService,
+  ) {
     if(_panelObject.analyticUnits === undefined) {
       _panelObject.analyticUnits = _panelObject.anomalyTypes || [];
     }
@@ -57,8 +61,6 @@ export class AnalyticController {
     this._analyticUnitsSet = new AnalyticUnitsSet(this._panelObject.analyticUnits);
     this._thresholds = [];
     this.updateThresholds();
-
-    // this.analyticUnits.forEach(a => this.runEnabledWaiter(a));
   }
 
   get helpSectionText() { return text; }
@@ -376,6 +378,9 @@ export class AnalyticController {
   }
 
   async updateThresholds(): Promise<void> {
+    if(this._analyticService === undefined) {
+      return;
+    }
     const ids = _.map(this._panelObject.analyticUnits, (analyticUnit: any) => analyticUnit.id);
     const thresholds = await this._analyticService.getThresholds(ids);
     this._thresholds = thresholds;
@@ -410,6 +415,9 @@ export class AnalyticController {
   }
 
   private async _runStatusWaiter(analyticUnit: AnalyticUnit) {
+    if(this._analyticService === undefined) {
+      return;
+    }
     if(analyticUnit === undefined || analyticUnit === null) {
       throw new Error('analyticUnit not defined');
     }
@@ -468,6 +476,10 @@ export class AnalyticController {
   }
 
   public async updateServerInfo() {
+    if(!this._analyticService) {
+      this._serverInfo = ServerInfoUnknown;
+      return;
+    }
     this._serverInfo = await this._analyticService.getServerInfo();
   }
 
@@ -475,7 +487,10 @@ export class AnalyticController {
     return this._serverInfo;
   }
 
-  public get serverStatus() {
+  public get serverStatus(): boolean {
+    if(this._analyticService === undefined) {
+      return false;
+    }
     return this._analyticService.isUp;
   }
 }

src/panel/graph_panel/graph_ctrl.ts

@@ -183,7 +183,7 @@ class GraphCtrl extends MetricsPanelCtrl {
     this.rebindKeys();
   }
 
-  getHasticDatasourceURL(): string {
+  getHasticDatasourceURL(): string | undefined {
     const hasticDatasourceId = this.panel.hasticDatasource;
     if(hasticDatasourceId !== undefined && hasticDatasourceId !== null) {
       const hasticDatasource = _.find(this._hasticDatasources, { id: hasticDatasourceId });
@@ -297,20 +297,24 @@ class GraphCtrl extends MetricsPanelCtrl {
 
     await this._fetchHasticDatasources();
     const hasticDatasourceURL = this.getHasticDatasourceURL();
-
+    if(hasticDatasourceURL === undefined) {
+      delete this.analyticService;
+    } else {
       this.analyticService = new AnalyticService(hasticDatasourceURL, this.$http);
       this.runDatasourceConnectivityCheck();  
+    }
 
-    this.analyticsController = new AnalyticController(this.panel, this.analyticService, this.events);
+    this.analyticsController = new AnalyticController(this.panel, this.events, this.analyticService);
     this.analyticsController.fetchAnalyticUnitsStatuses();
 
+    this._updatePanelInfo();
+    this.analyticsController.updateServerInfo();
+
     this._graphRenderer = new GraphRenderer(
-      this.$graphElem, this.timeSrv, this.contextSrv, this.$scope
+      this.$graphElem, this.timeSrv, this.contextSrv, this.$scope, this.analyticsController
     );
     this._graphLegend = new GraphLegend(this.$legendElem, this.popoverSrv, this.$scope);
 
-    this._updatePanelInfo();
-    this.analyticsController.updateServerInfo();
   }
 
   issueQueries(datasource) {

src/panel/graph_panel/graph_renderer.ts

@@ -40,7 +40,7 @@ const COLOR_SELECTION = '#666';
 
 export class GraphRenderer {
 
-  private _analyticController: AnalyticController;
+  ;
   private data: any;
   private tooltip: GraphTooltip;
   private panelWidth: number;
@@ -58,7 +58,13 @@ export class GraphRenderer {
   private timeSrv: any;
   private _graphMousePosition: any;
 
-  constructor($elem: JQuery<HTMLElement>, timeSrv, contextSrv, scope) {
+  constructor(
+    $elem: JQuery<HTMLElement>, timeSrv, contextSrv, scope,
+    private _analyticController: AnalyticController
+  ) {
+    if(this._analyticController === undefined) {
+      throw new TypeError('_analyticController is undefined');
+    }
     var self = this;
     this.$elem = $elem;
     this.ctrl = scope.ctrl;
@@ -69,11 +75,6 @@ export class GraphRenderer {
     this.contextSrv = contextSrv;
     this.scope = scope;
 
-    this._analyticController = this.ctrl.analyticsController;
-    if(this._analyticController === undefined) {
-      throw new Error('analyticController is undefined');
-    }
-
 
     // this.annotations = [];
     this.panelWidth = 0;

src/panel/graph_panel/graph_tooltip.ts

@@ -12,7 +12,7 @@ export class GraphTooltip {
   constructor(
     private $elem: JQuery<HTMLElement>, private dashboard,
     private scope, private getSeriesFn,
-    private _analyticSegmentsSearcher: AnalyticSegmentsSearcher
+    private _analyticSegmentsSearcher?: AnalyticSegmentsSearcher
   ) {
     this.ctrl = scope.ctrl;
     this.panel = this.ctrl.panel;
@@ -115,8 +115,10 @@ export class GraphTooltip {
         plot.highlight(hoverInfo.index, hoverInfo.hoverIndex);
       }
 
+      
       seriesHtml += this._appendAnomaliesHTML(pos.x, rangeDist);
       
+
       this._renderAndShow(absoluteTime, seriesHtml, pos, xMode);
     }
     // single series tooltip
@@ -191,6 +193,9 @@ export class GraphTooltip {
   };
 
   private _appendAnomaliesHTML(pos: number, rangeDist: number): string {
+    if(this._analyticSegmentsSearcher === undefined) {
+      return '';
+    }
     var result = '';
     var segments = this._analyticSegmentsSearcher(pos, rangeDist);
     if(segments.length === 0) {

src/panel/graph_panel/models/info.ts

@@ -9,6 +9,17 @@ export type ServerInfo = {
   gitCommitHash: string
 }
 
+export const ServerInfoUnknown: ServerInfo = {
+  nodeVersion: 'unknown',
+  packageVersion: 'unknown',
+  npmUserAgent: 'unknown',
+  docker: 'unknown',
+  zmqConectionString: 'unknown',
+  serverPort: 'unknown',
+  gitBranch: 'unknown',
+  gitCommitHash: 'unknown'
+};
+
 export type PanelInfo = {
   grafanaVersion: string,
   grafanaUrl: string,

src/panel/graph_panel/services/analytic_service.ts

@@ -3,19 +3,23 @@ import { MetricExpanded } from '../models/metric';
 import { DatasourceRequest } from '../models/datasource';
 import { SegmentsSet } from '../models/segment_set';
 import { AnalyticUnitId, AnalyticUnit, AnalyticSegment } from '../models/analytic_unit';
-import { ServerInfo } from '../models/info';
+import { ServerInfo, ServerInfoUnknown } from '../models/info';
 import { Threshold } from '../models/threshold';
 
 import { appEvents } from 'grafana/app/core/core';
 
 
 export class AnalyticService {
-  private _isUp = false;
+  private _isUp: boolean = false;
 
   constructor(
     private _hasticDatasourceURL: string,
     private $http
-  ) { }
+  ) {
+    if(this._hasticDatasourceURL === undefined) {
+      throw new TypeError('_hasticDatasourceURL is undefined');
+    }
+  }
 
   async getAnalyticUnitTypes() {
     return this.get('/analyticUnits/types');
@@ -149,16 +153,7 @@ export class AnalyticService {
   async getServerInfo(): Promise<ServerInfo> {
     const data = await this.get('/');
     if(data === undefined) {
-      return {
-        nodeVersion: 'unknown',
-        packageVersion: 'unknown',
-        npmUserAgent: 'unknown',
-        docker: 'unknown',
-        zmqConectionString: 'unknown',
-        serverPort: 'unknown',
-        gitBranch: 'unknown',
-        gitCommitHash: 'unknown'
-      };
+      return ServerInfoUnknown;
     }
     return {
       nodeVersion: data.nodeVersion,
@@ -256,7 +251,7 @@ export class AnalyticService {
     );
   }
 
-  public get isUp() {
+  public get isUp(): boolean {
     return this._isUp;
   }
 }

tests/setup_tests.ts

@@ -17,13 +17,15 @@ function $http() {
 } 
 
 const analyticService = new AnalyticService('', $http);
-analyticService.postNewItem = async function (newItem: AnalyticUnit, metric: MetricExpanded, datasource: DatasourceRequest, panelUrl: string
+analyticService.postNewItem = async function (
+  newItem: AnalyticUnit, metric: MetricExpanded, 
+  datasource: DatasourceRequest, panelUrl: string
 ): Promise<AnalyticUnitId> {
   id++;
   return Promise.resolve(id.toString());
 }
 
-export const analyticController = new AnalyticController({}, analyticService, new Emitter());
+export const analyticController = new AnalyticController({}, new Emitter(), analyticService);
 
 jest.mock('../src/panel/graph_panel/partials/help_section.html', () => '');