106 lines
3.3 KiB
JavaScript
106 lines
3.3 KiB
JavaScript
import { normalize, arrayOf } from "normalizr";
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import humps from "humps";
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import { CALL_API } from "../middleware/api";
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import { artist, track, album } from "../models/api";
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export const DEFAULT_LIMIT = 32; /** Default max number of elements to retrieve. */
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export default function (action, requestType, successType, failureType) {
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const itemName = action.rstrip("s");
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const fetchItemsSuccess = function (jsonData, pageNumber) {
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// Normalize data
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jsonData = normalize(
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jsonData,
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{
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artist: arrayOf(artist),
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album: arrayOf(album),
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song: arrayOf(track)
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},
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{
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assignEntity: function (output, key, value) {
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// Delete useless fields
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if (key == "sessionExpire") {
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delete output.sessionExpire;
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} else {
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output[key] = value;
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}
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}
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}
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);
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const nPages = Math.ceil(jsonData.result[itemName].length / DEFAULT_LIMIT);
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return {
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type: successType,
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payload: {
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result: jsonData.result,
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entities: jsonData.entities,
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nPages: nPages,
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currentPage: pageNumber
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}
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};
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};
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const fetchItemsRequest = function () {
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return {
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type: requestType,
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payload: {
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}
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};
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};
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const fetchItemsFailure = function (error) {
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return {
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type: failureType,
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payload: {
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error: error
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}
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};
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};
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const fetchItems = function (endpoint, username, passphrase, filter, pageNumber, include = [], limit=DEFAULT_LIMIT) {
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const offset = (pageNumber - 1) * DEFAULT_LIMIT;
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let extraParams = {
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offset: offset,
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limit: limit
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};
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if (filter) {
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extraParams.filter = filter;
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}
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if (include && include.length > 0) {
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extraParams.include = include;
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}
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return {
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type: CALL_API,
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payload: {
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endpoint: endpoint,
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dispatch: [
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fetchItemsRequest,
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jsonData => dispatch => {
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dispatch(fetchItemsSuccess(jsonData, pageNumber));
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},
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fetchItemsFailure
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],
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action: action,
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auth: passphrase,
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username: username,
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extraParams: extraParams
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}
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};
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};
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const loadItems = function({ pageNumber = 1, filter = null, include = [] } = {}) {
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return (dispatch, getState) => {
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const { auth } = getState();
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dispatch(fetchItems(auth.endpoint, auth.username, auth.token.token, filter, pageNumber, include));
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};
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};
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const camelizedAction = humps.pascalize(action);
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var returned = {};
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returned["fetch" + camelizedAction + "Success"] = fetchItemsSuccess;
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returned["fetch" + camelizedAction + "Request"] = fetchItemsRequest;
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returned["fetch" + camelizedAction + "Failure"] = fetchItemsFailure;
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returned["fetch" + camelizedAction] = fetchItems;
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returned["load" + camelizedAction] = loadItems;
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return returned;
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}
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