React, Reducer, Saga helper

helpers.js

/*
	Reducer Helper
*/
export function createReqeuestTypes(_base) {
	let base = _base;
	if (Array.isArray(base)) base = base.join('/');
	const res = {};
	
	[REQUEST, SUCCESS, FAILURE]
		.forEach(type => res[type] = `${base}_${type}`);
	return res;	
}

export function patch(type, _patch = {}, mergeKey) {
	const rt = { type, patch: _patch };
	if (mergeKeys) {
		rt.mergeKeys = Array.isArray(mergeKeys) ? mergeKeys : [mergeKeys];
	}
	return rt;
}

/*
	Action Helpers
*/
export function createType(_base) {
	let base = _base;
	if(Array.isArray(base)) {
		base = base.join('/');
	}
	return base;
}

export function action(type, payload = {}) {
	return { type, ...payload };
}

export function* fetchEntity(entity, apiFn, ...args) {
	yield put(entity.request());
	try {
		const result = yield call(apiFn, ...args);
		yield put(entity.success(result));
	} catch (error) {
		yield put(entity.failure(error));
	}
}

/*
	Action Saga
*/
export function* initLoad() {
	const _isLoaded = yield select(isLoaded);
	if (!_isLoaded) {
		yield call(getLoad);
	}
}

export function* watchReqeustData() {
	while(true) {
		yield take(REQUEST_LOAD);
		yield fork(initLoad);
	}
}
/*
	ducks 
*/
const LOAD = createReqeuestTypes(['info', 'LOAD']);
const requestData = {
	request: () => patch(LOAD.REQUEST, { loading: true }),
	success: (data) => patch(LOAD.SUCCESS, { loading: false, loaded: true, data }),
	failure: (error) => patch(LOAD.FAILURE, { loading: false, loaded: false, error });
};

const REQUEST_LOAD = createType(['info', 'REQUEST_LOAD']);
export const load = (params) => action(REQUEST_LOAD, { params });

const getLoad = fetchEntity.bind(null, requestData, client.get('/loadInfo'));

/*
	Global Spinner
*/
// View
doCommentSave = (param) => {
	this.props.saveComment(param);
}
// Saga
export function* watchSaveData() {
	while(true) {
		const { data } = yield take(REQUEST_SAVE);
		
		yield put(showGlobalSpinner());
		yield fork(saveData, data);
		
		yield take([SAVE.SUCCESS, SAVE.FAILURE]);
		yield put(reloadPost(data.postId));
		yield put(hideGlobalSpinner());
	}
}

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