@harmowatch/ngx-redux-core/esm2015/providers/redux-reducer.provider.js

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/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,uselessCode} checked by tsc
 */
import { Injectable } from '@angular/core';
import { ReduxRegistry } from './redux-registry';
export class ReduxReducerProvider {
    constructor() {
        this.stateProviders = {};
    }
    /**
     * @return {?}
     */
    get rootReducer() {
        return this.reduce.bind(this);
    }
    /**
     * @param {?} provider
     * @return {?}
     */
    addStateProvider(provider) {
        if (!this.stateProviders[provider.name]) {
            ReduxRegistry.registerState(provider);
            this.stateProviders[provider.name] = provider;
        }
        else {
            throw new Error(`State "${provider.name}" is registered twice! Make sure your state name is unique!`);
        }
    }
    /**
     * @param {?} rootState
     * @param {?} action
     * @return {?}
     */
    reduce(rootState, action) {
        if (action.type === ReduxRegistry.ACTION_REGISTER_STATE) {
            /** @type {?} */
            const regAction = (/** @type {?} */ ((action)));
            return Object.assign({}, rootState, { [regAction.payload.name]: regAction.payload.initialValue });
        }
        return Object.values(this.stateProviders).reduce((stateToReduce, provider) => {
            return Object.assign({}, stateToReduce, {
                [provider.name]: provider.reduce(stateToReduce[provider.name], action),
            });
        }, rootState);
    }
}
ReduxReducerProvider.decorators = [
    { type: Injectable }
];
if (false) {
    /** @type {?} */
    ReduxReducerProvider.prototype.stateProviders;
}

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