Как создать селектор сравнения и правильно отправить его?

Question

Я уже пытался прочитать официальную документацию и не очень хорошо ее понял.

Я хотел бы сделать две вещи:

1. Вернуть человека with isMain true;
2. Правильно структурируйте архитектуру с помощью селекторов;

У меня есть сомнения относительно того, как вернуть этого конкретного человека, и у меня также есть сомнения относительно того, как правильно структурировать диспетчеризация этого селектора в архитектуре.

РЕДУКТОР ЛЮДЕЙ:

import { EntityState, EntityAdapter, createEntityAdapter } from '@ngrx/entity';
import { People } from '@shared/interfaces/people.interface';
import * as fromPeopleAction from './people.actions';

export interface State extends EntityState<People> {}
export const adapter: EntityAdapter<People> = createEntityAdapter<People>({
    selectId: (people: People) => people.id,
});

const INIT_STATE: State = adapter.getInitialState({
    data: null,
    error: null,
    loading: false,
});

export function reducer(state = INIT_STATE, action: fromPeopleAction.Actions) {
    switch (action.type) {
        case fromPeopleAction.ActionTypes.CREATE:
            return adapter.addOne(action.payload.people, {
                ...state,
                data: action.payload.people,
                loading: true,
            });
        case fromPeopleAction.ActionTypes.CREATE_SUCCESS:
            return adapter.addOne(action.payload.people, state);
        case fromPeopleAction.ActionTypes.CREATE_FAIL:
            return adapter.addOne(action.payload.people, {
                ...state,
                error: action.payload.error,
                loading: false,
            });
        default:
            return state;
    }
}

УСЛУГИ ЛЮДЕЙ

import { Injectable } from '@angular/core';
import { Store } from '@ngrx/store';
import { Observable } from 'rxjs';
import { People } from '@app/shared/interfaces/people.interface';
import { StoreState } from '@app/store/index';
import * as fromPeopleActions from '@app/store/people/people.actions';
import * as fromPeopleSelectors from '@app/store/people/people.selectors';

@Injectable({ providedIn: 'root' })
export class PeopleService {
    people$: Observable<Array<People[]>>;

    constructor(private store: Store<StoreState>) {}

    get(peopleId: string): any {
        this.store.dispatch(new fromPeopleActions.PeopleGet());
    }

    create(people: People): any {
        this.store.dispatch(new fromPeopleActions.PeopleCreate({ people }));
    }

    update(people: Partial<People>): any {
        this.store.dispatch(new fromPeopleActions.PeopleUpdate({ id: people.id, changes: people }));
    }
}

ВЫБОРЫ ЛЮДЕЙ

import { createFeatureSelector, createSelector } from '@ngrx/store';
import { State, adapter } from './people.reducer';

const featureSelector = createFeatureSelector<State>('people');

export const { selectIds, selectEntities, selectAll, selectTotal } = adapter.getSelectors(featureSelector);

export const getMainPeople = createSelector(featureSelector, (state: State) => {
    state.ids.forEach((id: any) => {
        if (state.entities[id].isMain) {
            return state.entities;
        }
    });
});