react-quizz-spanish/lib/QuizzBuilder/reducer/reducer.js

Quizz en react, traducido al español, autor original: hugobarragon

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.reducer = exports.initialState = void 0;
var lodash_clonedeep_1 = __importDefault(require("lodash.clonedeep"));
function mapClone(map) {
    return lodash_clonedeep_1.default(map);
}
exports.initialState = function (initialValue) {
    return new Map([["data", initialValue || []]]);
};
function reducer(state, action) {
    switch (action.type) {
        case "ADD_ELEMENT": {
            var new_state = mapClone(state), new_data = new_state.get("data");
            var item = action.item;
            new_data.push(item);
            return new_state.set("data", new_data);
        }
        case "DELETE_ELEMENT": {
            var new_state = mapClone(state), new_data = new_state.get("data"), id = action.id;
            for (var index = 0; index < new_data.length; index++) {
                var element = new_data[index];
                if (element["id"] === id) {
                    // if it finds equal id on list deletes it
                    new_data.splice(index, 1);
                }
            }
            return new_state.set("data", new_data);
        }
        case "PATCH_ELEMENT": {
            var new_state = mapClone(state), new_data = new_state.get("data"), id = action.id, newitem = action.newitem;
            for (var index = 0; index < new_data.length; index++) {
                var element = new_data[index];
                if (element["id"] === id) {
                    // if it finds equal id on list updates it
                    new_data[index] = Object.assign(element, newitem);
                    break;
                }
            }
            return new_state.set("data", new_data);
        }
        case "MOVE_ELEMENT": {
            var new_state = mapClone(state);
            var new_data = new_state.get("data");
            var newIndex = action.newIndex, oldIndex = action.oldIndex;
            if (newIndex >= new_data.length) {
                var k = newIndex - new_data.length + 1;
                while (k--) {
                    new_data.push(undefined);
                }
            }
            new_data.splice(newIndex, 0, new_data.splice(oldIndex, 1)[0]);
            return new_state.set("data", new_data);
        }
        default:
            throw new Error("unkown reducer action type");
    }
}
exports.reducer = reducer;
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