react-redux-query/reducer.js

React hooks and functions for SWR-style data fetching, backed by Redux

"use strict";
var __assign = (this && this.__assign) || function () {
    __assign = Object.assign || function(t) {
        for (var s, i = 1, n = arguments.length; i < n; i++) {
            s = arguments[i];
            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
                t[p] = s[p];
        }
        return t;
    };
    return __assign.apply(this, arguments);
};
var __rest = (this && this.__rest) || function (s, e) {
    var t = {};
    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
        t[p] = s[p];
    if (s != null && typeof Object.getOwnPropertySymbols === "function")
        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
                t[p[i]] = s[p[i]];
        }
    return t;
};
Object.defineProperty(exports, "__esModule", { value: true });
/**
 * Reduces state in query branch of Redux state tree depending on action dispatched. Query branch stores query states.
 * Key is usually unique per fetcher URL path, and should be similar to URL path.
 *
 * This allows any component to subscribe to changes to query state for any fetcher, including metadata and errors. It
 * also allows components to render themselves immediately if the data they need has already been cached in the query
 * branch.
 *
 * @param state - Query branch
 * @param action - Action object
 *
 * @returns Updated query branch
 */
function reduce(state, action) {
    var _a, _b, _c;
    var _d, _e;
    if (state === void 0) { state = {}; }
    var dataMs = Date.now();
    switch (action.type) {
        case 'REACT_REDUX_QUERY_SAVE_DATA': {
            var _f = action.payload, key = _f.key, data = _f.data;
            return __assign(__assign({}, state), (_a = {}, _a[key] = __assign(__assign({}, state[key]), { data: __assign({}, data), dataMs: dataMs }), _a));
        }
        case 'REACT_REDUX_QUERY_UPDATE_DATA': {
            var _g = action.payload, key = _g.key, updater = _g.updater, newData = _g.newData;
            var data = updater((_d = state[key]) === null || _d === void 0 ? void 0 : _d.data, newData);
            if (data === undefined)
                return state;
            if (data === null) {
                var _h = state, _j = key, _ = _h[_j], rest = __rest(_h, [typeof _j === "symbol" ? _j : _j + ""]);
                return rest;
            }
            return __assign(__assign({}, state), (_b = {}, _b[key] = __assign(__assign({}, state[key]), { data: __assign({}, data), dataMs: dataMs }), _b));
        }
        case 'REACT_REDUX_QUERY_UPDATE_QUERY_STATE': {
            var _k = action.payload, key = _k.key, options = _k.options;
            var queryState = action.payload.state;
            var saveStaleResponse = (options === null || options === void 0 ? void 0 : options.saveStaleResponse) || false;
            if (!saveStaleResponse && queryState.goodFetchMonoMs !== undefined) {
                if (queryState.goodFetchMonoMs < (((_e = state[key]) === null || _e === void 0 ? void 0 : _e.goodFetchMonoMs) || 0)) {
                    var data = queryState.data, dataMs_1 = queryState.dataMs, goodFetchMonoMs = queryState.goodFetchMonoMs, state_1 = __rest(queryState, ["data", "dataMs", "goodFetchMonoMs"]);
                    queryState = state_1;
                }
            }
            return __assign(__assign({}, state), (_c = {}, _c[key] = __assign(__assign({}, state[key]), queryState), _c));
        }
        default:
            return state;
    }
}
exports.default = reduce;