dareway-rui/build/core/reaper-core/handleActions.js

'use strict';

var _interopRequireDefault = require('@babel/runtime/helpers/interopRequireDefault');

Object.defineProperty(exports, '__esModule', {
    value: true
});
exports.default = void 0;

var _toConsumableArray2 = _interopRequireDefault(require('@babel/runtime/helpers/toConsumableArray'));

var _invariant = _interopRequireDefault(require('invariant'));

function identify(value) {
    return value;
}

function handleAction(actionType) {
    var reducer = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : identify;
    return function(state, action) {
        var type = action.type;
        (0, _invariant.default)(type, 'dispatch: action should be a plain Object with type');

        if (actionType === type) {
            return reducer(state, action);
        }

        return state;
    };
}

function reduceReducers() {
    for (var _len = arguments.length, reducers = new Array(_len), _key = 0; _key < _len; _key++) {
        reducers[_key] = arguments[_key];
    }

    return function(previous, current) {
        return reducers.reduce(function(p, r) {
            return r(p, current);
        }, previous);
    };
}

function handleActions(handlers, defaultState) {
    var reducers = Object.keys(handlers).map(function(type) {
        return handleAction(type, handlers[type]);
    });
    var reducer = reduceReducers.apply(void 0, (0, _toConsumableArray2.default)(reducers));
    return function() {
        var state = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : defaultState;
        var action = arguments.length > 1 ? arguments[1] : undefined;
        return reducer(state, action);
    };
}

var _default = handleActions;
exports.default = _default;

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