"use strict";
Object.defineProperty(exports, "__esModule", {
    value: true
});
Object.defineProperty(exports, "pathReducer", {
    enumerable: true,
    get: function() {
        return pathReducer;
    }
});
function _array_like_to_array(arr, len) {
    if (len == null || len > arr.length) len = arr.length;
    for(var i = 0, arr2 = new Array(len); i < len; i++)arr2[i] = arr[i];
    return arr2;
}
function _array_without_holes(arr) {
    if (Array.isArray(arr)) return _array_like_to_array(arr);
}
function _iterable_to_array(iter) {
    if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter);
}
function _non_iterable_spread() {
    throw new TypeError("Invalid attempt to spread non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
function _to_consumable_array(arr) {
    return _array_without_holes(arr) || _iterable_to_array(arr) || _unsupported_iterable_to_array(arr) || _non_iterable_spread();
}
function _unsupported_iterable_to_array(o, minLen) {
    if (!o) return;
    if (typeof o === "string") return _array_like_to_array(o, minLen);
    var n = Object.prototype.toString.call(o).slice(8, -1);
    if (n === "Object" && o.constructor) n = o.constructor.name;
    if (n === "Map" || n === "Set") return Array.from(n);
    if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _array_like_to_array(o, minLen);
}
function pathReducer(state, action) {
    switch(action.type){
        case 'reset':
            {
                return [];
            }
        case 'opened_first_level':
            {
                return [
                    'root'
                ];
            }
        case 'added_next_level':
            {
                return _to_consumable_array(state).concat([
                    action.value
                ]);
            }
        case 'removed_last_level':
            {
                return state.slice(0, -1);
            }
        case 'changed_on_level':
            {
                return _to_consumable_array(state.slice(0, action.level)).concat([
                    action.value
                ]);
            }
        case 'cut_by_level':
            {
                return state.slice(0, action.level);
            }
        default:
            {
                return state;
            }
    }
}
