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 { getNode, toggleNodeCollapse, toggleNodeSelection } from '~/models/tree';
  10 import { activateNode } from '../../models/tree';
  11
  12 export const treePickerReducer = (state: TreePicker = {}, action: TreePickerAction) =>
  13     treePickerActions.match(action, {
  14         LOAD_TREE_PICKER_NODE: ({ id, pickerId }) =>
  15             updateOrCreatePicker(state, pickerId, setNodeStatus(id)(TreeNodeStatus.PENDING)),
  16         LOAD_TREE_PICKER_NODE_SUCCESS: ({ id, nodes, pickerId }) =>
  17             updateOrCreatePicker(state, pickerId, compose(receiveNodes(nodes)(id), setNodeStatus(id)(TreeNodeStatus.LOADED))),
  18         TOGGLE_TREE_PICKER_NODE_COLLAPSE: ({ id, pickerId }) =>
  19             updateOrCreatePicker(state, pickerId, toggleNodeCollapse(id)),
  20         ACTIVATE_TREE_PICKER_NODE: ({ id, pickerId }) =>
  21             updateOrCreatePicker(state, pickerId, activateNode(id)),
  22         TOGGLE_TREE_PICKER_NODE_SELECTION: ({ id, pickerId }) =>
  23             updateOrCreatePicker(state, pickerId, toggleNodeSelection(id)),
  24         RESET_TREE_PICKER: ({ pickerId }) =>
  25             updateOrCreatePicker(state, pickerId, createTree),
  26         EXPAND_TREE_PICKER_NODES: ({ pickerId, ids }) =>
  27             updateOrCreatePicker(state, pickerId, expandNode(...ids)),
  28         default: () => state
  29     });
  30
  31 const updateOrCreatePicker = <V>(state: TreePicker, pickerId: string, func: (value: Tree<V>) => Tree<V>) => {
  32     const picker = state[pickerId] || createTree();
  33     const updatedPicker = func(picker);
  34     return { ...state, [pickerId]: updatedPicker };
  35 };
  36
  37 const receiveNodes = <V>(nodes: Array<TreeNode<V>>) => (parent: string) => (state: Tree<V>) => {
  38     const parentNode = getNode(parent)(state);
  39     let newState = state;
  40     if (parentNode) {
  41         newState = setNode({ ...parentNode, children: [] })(state);
  42     }
  43     return nodes.reduce((tree, node) => {
  44         return setNode({ ...node, parent })(tree);
  45     }, newState);
  46 };