@c8y/ngx-components
Version:
Angular modules for Cumulocity IoT applications
100 lines • 14.7 kB
JavaScript
import { Injectable } from '@angular/core';
import { EventService } from '@c8y/client';
import { GeoService } from '@c8y/ngx-components';
import { first, identity, isEmpty, last } from 'lodash-es';
import { BehaviorSubject, Subject, combineLatest, pipe } from 'rxjs';
import { distinctUntilChanged, map, share, switchMap, tap } from 'rxjs/operators';
import * as i0 from "@angular/core";
import * as i1 from "@c8y/client";
import * as i2 from "@c8y/ngx-components";
const LOCATION_UPDATE_EVENT_TYPE = 'c8y_LocationUpdate';
export class TrackingService {
static { this.BASE_FILTER = {
pageSize: 1000,
withTotalPages: true,
type: LOCATION_UPDATE_EVENT_TYPE
}; }
constructor(eventService, geo) {
this.eventService = eventService;
this.geo = geo;
this.trackVisible = true;
this.hasEvents = false;
this._polylineEventsSubject$ = new BehaviorSubject([]);
this.deviceId$ = new Subject();
this.timeInterval$ = new Subject();
this.reload$ = new BehaviorSubject(null);
this.polyline$ = this._polylineEventsSubject$.asObservable().pipe(map(events => (events || []).map(event => this.geo.getLatLong(event)).filter(identity)), share());
this.events$ = combineLatest([
this.deviceId$.pipe(distinctUntilChanged()),
this.timeInterval$,
this.reload$
]).pipe(switchMap(([source, interval]) => {
const { dateFrom, dateTo } = interval;
return this.eventService.list({
...TrackingService.BASE_FILTER,
source,
dateFrom: dateFrom.toISOString(),
dateTo: dateTo.toISOString()
});
}), tap(() => this._polylineEventsSubject$.next([])), share());
this.pipe = pipe(tap(events => (this.hasEvents = !isEmpty(events))), map((events) => (events || []).filter(event => this.isMatchingEvent(event))), tap((events) => {
const prepend = this.compareEvents(last(this._polylineEventsSubject$.value), first(events)) < 0;
const polyline = prepend
? [...events, ...this._polylineEventsSubject$.value]
: [...this._polylineEventsSubject$.value, ...events];
this._polylineEventsSubject$.next(polyline);
}));
}
setDeviceId(deviceId) {
this.deviceId$.next(deviceId);
}
setInterval(interval) {
this.timeInterval$.next(interval);
}
clearTrack() {
this._polylineEventsSubject$.next([]);
}
reload() {
this.reload$.next();
}
async latestPositionUpdate(mo) {
const dateTo = new Date();
dateTo.setDate(dateTo.getDate() + 1);
const filters = {
fragmentType: 'c8y_Position',
dateFrom: new Date(0).toISOString(),
dateTo: dateTo.toISOString(),
pageSize: 1,
source: mo.id
};
const events = await this.eventService.list(filters);
return events?.data?.length ? new Date(events.data[0].time) : undefined;
}
toggleTrack() {
if (this.trackVisible) {
this.clearTrack();
}
else {
this.reload();
}
this.trackVisible = !this.trackVisible;
}
isLocationUpdateEvent(event) {
return event.type === LOCATION_UPDATE_EVENT_TYPE;
}
isMatchingEvent(event) {
return this.isLocationUpdateEvent(event);
}
compareEvents(a, b) {
return Date.parse(a?.time) - Date.parse(b?.time);
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: TrackingService, deps: [{ token: i1.EventService }, { token: i2.GeoService }], target: i0.ɵɵFactoryTarget.Injectable }); }
static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: TrackingService, providedIn: 'root' }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: TrackingService, decorators: [{
type: Injectable,
args: [{
providedIn: 'root'
}]
}], ctorParameters: () => [{ type: i1.EventService }, { type: i2.GeoService }] });
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{ Injectable } from '@angular/core';\nimport { EventService, IEvent, IResultList } from '@c8y/client';\nimport { ForOfFilterPipe, GeoService, TimeInterval } from '@c8y/ngx-components';\nimport { PositionManagedObject } from '@c8y/ngx-components/map';\nimport { first, identity, isEmpty, last } from 'lodash-es';\nimport { BehaviorSubject, Observable, Subject, combineLatest, pipe } from 'rxjs';\nimport { distinctUntilChanged, map, share, switchMap, tap } from 'rxjs/operators';\n\nconst LOCATION_UPDATE_EVENT_TYPE = 'c8y_LocationUpdate';\n\n@Injectable({\n  providedIn: 'root'\n})\nexport class TrackingService {\n  private static readonly BASE_FILTER = {\n    pageSize: 1000,\n    withTotalPages: true,\n    type: LOCATION_UPDATE_EVENT_TYPE\n  };\n\n  events$: Observable<IResultList<IEvent>>;\n  polyline$: Observable<L.LatLngExpression[]>;\n  pipe: ForOfFilterPipe;\n  trackVisible = true;\n  hasEvents = false;\n\n  private _polylineEventsSubject$ = new BehaviorSubject<IEvent[]>([]);\n\n  private deviceId$: Subject<string | number> = new Subject();\n  private timeInterval$: Subject<TimeInterval> = new Subject();\n  private reload$: BehaviorSubject<void> = new BehaviorSubject(null);\n\n  constructor(\n    private eventService: EventService,\n    private geo: GeoService\n  ) {\n    this.polyline$ = this._polylineEventsSubject$.asObservable().pipe(\n      map(events => (events || []).map(event => this.geo.getLatLong(event)).filter(identity)),\n      share()\n    );\n\n    this.events$ = combineLatest([\n      this.deviceId$.pipe(distinctUntilChanged()),\n      this.timeInterval$,\n      this.reload$\n    ]).pipe(\n      switchMap(([source, interval]) => {\n        const { dateFrom, dateTo } = interval;\n        return this.eventService.list({\n          ...TrackingService.BASE_FILTER,\n          source,\n          dateFrom: dateFrom.toISOString(),\n          dateTo: dateTo.toISOString()\n        });\n      }),\n      tap(() => this._polylineEventsSubject$.next([])),\n      share()\n    );\n\n    this.pipe = pipe(\n      tap(events => (this.hasEvents = !isEmpty(events))),\n      map((events: IEvent[]) => (events || []).filter(event => this.isMatchingEvent(event))),\n      tap((events: IEvent[]) => {\n        const prepend =\n          this.compareEvents(last(this._polylineEventsSubject$.value), first(events)) < 0;\n        const polyline: IEvent[] = prepend\n          ? [...events, ...this._polylineEventsSubject$.value]\n          : [...this._polylineEventsSubject$.value, ...events];\n\n        this._polylineEventsSubject$.next(polyline);\n      })\n    );\n  }\n\n  setDeviceId(deviceId: string | number) {\n    this.deviceId$.next(deviceId);\n  }\n\n  setInterval(interval: TimeInterval) {\n    this.timeInterval$.next(interval);\n  }\n\n  clearTrack() {\n    this._polylineEventsSubject$.next([]);\n  }\n\n  reload() {\n    this.reload$.next();\n  }\n\n  async latestPositionUpdate(mo: PositionManagedObject): Promise<Date> {\n    const dateTo = new Date();\n    dateTo.setDate(dateTo.getDate() + 1);\n\n    const filters = {\n      fragmentType: 'c8y_Position',\n      dateFrom: new Date(0).toISOString(),\n      dateTo: dateTo.toISOString(),\n      pageSize: 1,\n      source: mo.id\n    };\n    const events = await this.eventService.list(filters);\n    return events?.data?.length ? new Date(events.data[0].time) : undefined;\n  }\n\n  toggleTrack() {\n    if (this.trackVisible) {\n      this.clearTrack();\n    } else {\n      this.reload();\n    }\n    this.trackVisible = !this.trackVisible;\n  }\n\n  isLocationUpdateEvent(event: IEvent): boolean {\n    return event.type === LOCATION_UPDATE_EVENT_TYPE;\n  }\n\n  private isMatchingEvent(event: IEvent): boolean {\n    return this.isLocationUpdateEvent(event);\n  }\n\n  private compareEvents(a: IEvent, b: IEvent): number {\n    return Date.parse(a?.time) - Date.parse(b?.time);\n  }\n}\n"]}