model-navigator-standalone/es/features/filter/filterSlice.js

Standalone MDF graph model visualizer

import "core-js/modules/es.array.flat-map.js";
import "core-js/modules/es.array.includes.js";
import "core-js/modules/es.array.unscopables.flat-map.js";
import "core-js/modules/es.global-this.js";
import "core-js/modules/es.string.includes.js";
import "core-js/modules/web.dom-collections.iterator.js";
/* eslint-disable no-undef */
import { createSlice } from '@reduxjs/toolkit';
import _ from 'lodash';
import { filterConfig, controlVocabConfig } from "../../components/ModelNavigator/Config/nav.config";
const initialState = {
  configs: {
    filterConfig,
    controlVocabConfig
  },
  hiddenNodes: [],
  haveFilters: false,
  allTaggedNodes: [],
  fullTagMatrix: null,
  displayedTagMatrix: {},
  checkboxState: null,
  filtersSelected: []
};
const filterSlice = createSlice({
  name: 'filter',
  initialState,
  reducers: {
    filtersInitRequested(state, action) {
      const model = action.payload;
      globalThis.model = model;
      const tags = globalThis.config.facetFilters.map(filt => filt.tag);
      if (tags) {
        // does the model have any of these tags?
        let tagset = tags.flatMap(tag => model.tag_kvs(tag));
        if (tagset && tagset.length > 0) {
          state.haveFilters = true;
          if (!state.fullTagMatrix) {
            // initialize allTaggedNodes
            state.fullTagMatrix = calcNodeTagMatrix(model, globalThis.config.facetFilters, []);
            state.displayedTagMatrix = _.cloneDeep(state.fullTagMatrix);
            let taggedNodes = new Set();
            Object.keys(state.fullTagMatrix).forEach(key => {
              Object.keys(state.fullTagMatrix[key]).forEach(val => {
                state.fullTagMatrix[key][val].nodes.forEach(hndl => {
                  taggedNodes.add(hndl);
                });
              });
            });
            state.allTaggedNodes = [];
            taggedNodes.forEach(hndl => {
              state.allTaggedNodes.push(hndl);
            });
          }
          if (!state.checkboxState) {
            let acc = {};
            globalThis.config.facetFilters.flatMap(
            // eslint-disable-line no-undef
            filt => {
              filt.checkboxItems.map(item => {
                acc["checkbox_".concat(item.tag, "_").concat(item.value)] = false;
              });
            });
            state.checkboxState = acc;
          }
        } else {
          state.haveFilters = false;
        }
      } else {
        state.haveFilters = false;
      }
    },
    hiddenNodesUpdated(state, action) {
      // hiddenNodes: an Array of node handles (strings)
      const {
        model,
        hiddenNodes
      } = action.payload;
      // replacement
      state.hiddenNodes = hiddenNodes;
      state.displayedTagMatrix = calcNodeTagMatrix(model, globalThis.config.facetFilters, hiddenNodes);
    },
    filterSelectorToggled(state, action) {
      // checkBoxInfo - filterConfig element plus isChecked
      // dispatch after modelReceived
      const {
        tag,
        value
      } = action.payload;
      if (tag !== undefined || value !== undefined) {
        // update checkboxes
        state.checkboxState["checkbox_".concat(tag, "_").concat(value)] = !state.checkboxState["checkbox_".concat(tag, "_").concat(value)];
        const filter = {
          tag,
          value
        };
        let fs = [];
        // update filtersSelected
        fs = _.cloneDeep(state.filtersSelected);
        if (state.checkboxState["checkbox_".concat(tag, "_").concat(value)]) {
          fs.push(filter);
        } else {
          fs = fs.filter(item => !(item.tag === tag && item.value === value));
        }
        // determine nodes to hide
        state.hiddenNodes = calcHiddenNodes(fs, state.fullTagMatrix, state.allTaggedNodes);
        state.filtersSelected = fs;

        // calculate counts
        if (state.hiddenNodes.length === 0) {
          state.displayedTagMatrix = _.cloneDeep(state.fullTagMatrix);
        } else {
          state.displayedTagMatrix = calcNodeTagMatrix(globalThis.model, globalThis.config.facetFilters, state.hiddenNodes);
        }
      }
    },
    filterGroupCleared(state, action) {
      const {
        facetItem
      } = action.payload;
      // update checkboxes
      facetItem.checkboxItems.forEach(item => {
        state.checkboxState["checkbox_".concat(item.tag, "_").concat(item.value)] = false;
      });
      // update filtersSelected
      const fs = _.cloneDeep(state.filtersSelected);
      state.filtersSelected = fs.filter(item => item.tag !== _.toLower(facetItem.tag));
      // determine nodes to hide
      state.hiddenNodes = calcHiddenNodes(state.filtersSelected, state.fullTagMatrix, state.allTaggedNodes);

      // calculate counts
      if (state.hiddenNodes.length === 0) {
        state.displayedTagMatrix = _.cloneDeep(state.fullTagMatrix);
      } else {
        state.displayedTagMatrix = calcNodeTagMatrix(globalThis.model, globalThis.config.facetFilters, state.hiddenNodes);
      }
    },
    allFiltersCleared(state, action) {
      // reset all checkboxes
      if (state.checkboxState) {
        Object.keys(state.checkboxState).forEach(key => {
          state.checkboxState[key] = false;
        });
      }
      // reset filtersSelected
      state.filtersSelected = [];
      // clear hidden nodes
      state.hiddenNodes = [];
      // reset displayed counts to totals
      state.displayedTagMatrix = _.cloneDeep(state.fullTagMatrix);
    }
  }
});
function calcHiddenNodes(filtersSelected, fullTagMatrix, allTaggedNodes) {
  if (filtersSelected.length === 0) {
    return [];
  }
  let showNodes = [];
  let nodes = {};
  let universe = new Set();
  let arrUniverse = [];
  filtersSelected.forEach(_ref => {
    let {
      tag,
      value
    } = _ref;
    if (!nodes[tag]) {
      nodes[tag] = new Set();
    }
    // OR/union within group (= tag key)
    fullTagMatrix[tag][value].nodes.forEach(hndl => {
      nodes[tag].add(hndl);
      universe.add(hndl);
    });
  });
  // AND/intersection between groups
  universe.forEach(hndl => {
    arrUniverse.push(hndl);
  });
  showNodes = arrUniverse.filter(
  // node should be shown if its handle appears in every group set
  // (i.e., if it is in the intersection of all the group sets)
  hndl => Object.values(nodes).every(set => set.has(hndl)));
  // return allTaggedNodes - showNodes = hiddenNodes
  return allTaggedNodes.filter(hndl => !showNodes.includes(hndl));
}
function calcNodeTagMatrix(model, facetFilters, hiddenNodes) {
  let nc = {};
  const facetTypes = facetFilters.map(facetFilter => facetFilter.type);
  facetTypes.filter(type => type.entity === 'node').forEach(type => {
    model.tag_kvs(type.tag).forEach(_ref2 => {
      let [key, val] = _ref2;
      const taggedNodes = model.tagged_items(key, val).filter(ent => ent._kind === 'Node' && !hiddenNodes.includes(ent.handle));
      if (!nc[key]) {
        nc[key] = {};
      }
      let info = {
        nodes: [],
        count: 0
      };
      if (taggedNodes) {
        info.nodes = taggedNodes.map(n => n.handle);
        info.count = taggedNodes.length;
      }
      nc[key][val] = info;
    });
  });
  facetTypes.filter(type => type.entity === 'prop').forEach(type => {
    model.tag_kvs(type.tag).forEach(_ref3 => {
      let [key, val] = _ref3;
      const taggedProps = model.tagged_items(key, val).filter(ent => ent._kind === 'Property');
      let info = {
        nodes: [],
        count: 0
      };
      if (taggedProps) {
        let propsCount = 0;
        let nodeSet = new Set();
        taggedProps.forEach(prop => {
          // if prop.owner is null => the Property is defined but doesn't
          // appear under any Node in MDF.
          if (prop.owner && prop.owner._kind === 'Node' && !hiddenNodes.includes(prop.owner.handle)) {
            propsCount += 1;
            nodeSet.add(prop.owner.handle);
          }
        });
        info.count = propsCount;
        nodeSet.forEach(n => {
          info.nodes.push(n);
        });
      }
      if (!nc[key]) {
        nc[key] = {};
      }
      nc[key][val] = info;
    });
  });
  return nc;
}
export const {
  filtersInitRequested,
  hiddenNodesUpdated,
  filterSelectorToggled,
  filterGroupCleared,
  allFiltersCleared
} = filterSlice.actions;
export default filterSlice.reducer;
export const selectHaveFilters = state => state.filter.haveFilters;
export const selectHiddenNodes = state => state.filter.hiddenNodes;
export const selectDisplayedTagMatrix = state => state.filter.displayedTagMatrix;
export const selectFullTagMatrix = state => state.filter.fullTagMatrix;
export const selectCheckboxState = state => state.filter.checkboxState;
export const selectFiltersSelected = state => state.filter.filtersSelected;