src/store/tree-picker/tree-picker-reducer.ts

   1 // Copyright (C) The Arvados Authors. All rights reserved.
   2 //
   3 // SPDX-License-Identifier: AGPL-3.0
   4
   5 import { createTree, TreeNode, setNode, Tree, TreeNodeStatus, setNodeStatus, expandNode } from '~/models/tree';
   6 import { TreePicker } from "./tree-picker";
   7 import { treePickerActions, TreePickerAction } from "./tree-picker-actions";
   8 import { compose } from "redux";
   9 import { activateNode, getNode, toggleNodeCollapse, toggleNodeSelection } from '~/models/tree';
  10
  11 export const treePickerReducer = (state: TreePicker = {}, action: TreePickerAction) =>
  12     treePickerActions.match(action, {
  13         LOAD_TREE_PICKER_NODE: ({ id, pickerId }) =>
  14             updateOrCreatePicker(state, pickerId, setNodeStatus(id)(TreeNodeStatus.PENDING)),
  15         LOAD_TREE_PICKER_NODE_SUCCESS: ({ id, nodes, pickerId }) =>
  16             updateOrCreatePicker(state, pickerId, compose(receiveNodes(nodes)(id), setNodeStatus(id)(TreeNodeStatus.LOADED))),
  17         TOGGLE_TREE_PICKER_NODE_COLLAPSE: ({ id, pickerId }) =>
  18             updateOrCreatePicker(state, pickerId, toggleNodeCollapse(id)),
  19         ACTIVATE_TREE_PICKER_NODE: ({ id, pickerId }) =>
  20             updateOrCreatePicker(state, pickerId, activateNode(id)),
  21         TOGGLE_TREE_PICKER_NODE_SELECTION: ({ id, pickerId }) =>
  22             updateOrCreatePicker(state, pickerId, toggleNodeSelection(id)),
  23         RESET_TREE_PICKER: ({ pickerId }) =>
  24             updateOrCreatePicker(state, pickerId, createTree),
  25         EXPAND_TREE_PICKER_NODES: ({ pickerId, ids }) =>
  26             updateOrCreatePicker(state, pickerId, expandNode(...ids)),
  27         default: () => state
  28     });
  29
  30 const updateOrCreatePicker = <V>(state: TreePicker, pickerId: string, func: (value: Tree<V>) => Tree<V>) => {
  31     const picker = state[pickerId] || createTree();
  32     const updatedPicker = func(picker);
  33     return { ...state, [pickerId]: updatedPicker };
  34 };
  35
  36 const receiveNodes = <V>(nodes: Array<TreeNode<V>>) => (parent: string) => (state: Tree<V>) => {
  37     const parentNode = getNode(parent)(state);
  38     let newState = state;
  39     if (parentNode) {
  40         newState = setNode({ ...parentNode, children: [] })(state);
  41     }
  42     return nodes.reduce((tree, node) => {
  43         return setNode({ ...node, parent })(tree);
  44     }, newState);
  45 };