service2.ts

private _initSelectedPeople(): void {
    // this._targetStateService.getAllPeople()
    //   .pipe(takeUntil(this._destroyed$))
    //   .subscribe((allPeople: TargetModel[]) => {
    //
    //     console.log(allPeople, 'allpeople');
    //
    //     let ids = [];
    //     this._activatedRoute.queryParamMap
    //       .pipe(take(1))
    //       .subscribe((params: ParamMap) => {
    //         ids = params.getAll('people');
    //       });
    //
    //     const selectedPeople = allPeople.filter((person: TargetModel) => {
    //       return ids
    //         .some((personId: string) => {
    //           return person.id === personId;
    //         });
    //     });
    //
    //     this._targetStateService.setSelectedPeople(selectedPeople);
    //   });

    // combineLatest([this._targetStateService.getAllPeople(), this._getParams$()])
    //   .pipe(
    //     map(([allPeople, peopleIds]: [TargetModel[], Set<string>]) => {
    //       console.log([allPeople, peopleIds]);
    //       return allPeople.filter((person: TargetModel) => {
    //         return peopleIds.has(person.id);
    //       });
    //     }),
    //     tap(() => console.log()),
    //     takeUntil(this._destroyed$),
    //   )
    //   .subscribe((selectedPeople: TargetModel[]) => {
    //     this._targetStateService.setSelectedPeople(selectedPeople);
    //   });

    let allPeoples = [];
    this._targetStateService.getAllPeople()
      .pipe(
        switchMap((allPeople: TargetModel[]) => {
          allPeoples = allPeople;
          return this._getParams$();
        }),
        map((peopleIds) => {
          return allPeoples.filter((person: TargetModel) => {
            return peopleIds.has(person.id);
          });
        }),
        takeUntil(this._destroyed$),
      )
      .subscribe((selectedPeople: TargetModel[]) => {
        this._targetStateService.setSelectedPeople(selectedPeople);
      });
  }

  private _getParams$() {
    return this._activatedRoute.queryParamMap
      .pipe(
        take(1),
        map((p: ParamMap) => new Set(p.getAll('people'))),
      );
  }