src/app/store/statements/statements.selectors.ts

/********************************************************************************
 * Copyright (c) 2020 Contributors to the Eclipse Foundation
 *
 * See the NOTICE file(s) distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0
 *
 * SPDX-License-Identifier: EPL-2.0
 ********************************************************************************/

import {createFeatureSelector, createSelector} from "@ngrx/store";
import {entitiesToArray} from "../../util/store.util";
import {IStatementEntity} from "./model/IStatementEntity";
import {IStatementsStoreState} from "./model/IStatementsStoreState";
import {STATEMENTS_FEATURE_NAME} from "./statements-reducers.token";

export const statementsStateSelector = createFeatureSelector<IStatementsStoreState>(STATEMENTS_FEATURE_NAME);

export const statementsListSelector = createSelector(
    statementsStateSelector,
    (state) => entitiesToArray(state?.entities)
);

export const unfinishedStatementsListSelector = createSelector(
    statementsListSelector,
    (list) => list.filter((statement) => !statement.finished)
);

export const finishedStatementsListSelector = createSelector(
    statementsListSelector,
    (list) => list.filter((statement) => statement.finished)
);

export const statementSelector = createSelector(
    statementsStateSelector,
    (state, props: { id: number }): IStatementEntity => state?.entities == null ? undefined : state.entities[props?.id]
);