nlu/lib/create-visual-tree.ts

Use this package to link your projects together for local development.

'use strict';

import util = require('util');
import {NluMap, NLURunOpts, NluVisualTree} from "./index";
import log from './logging';

/////////////////////////////////////////////////////////////////////////////////

export const createTree = function (map: NluMap, name: string, originalList: Array<string>, opts: NLURunOpts) {
    
    let tree: NluVisualTree = {
      [name]: {}
    };
    
    let createItem = function (key: string, obj: NluVisualTree, keys: Array<string>) {
      
      obj[key] = obj[key] || {};
      
      if (!(map[key] && Array.isArray(map[key].deps))) {
        opts.verbosity > 1 && log.warning(`warning: no key named "${key}" in map.`);
        return;
      }
      
      if (!Array.isArray(map[key].deps)) {
        log.warning(`warning: deps is not an array => ${util.inspect(map[key])}.`);
        return;
      }
      
      map[key].deps.forEach(function (d: string) {
        
        if (key !== d && keys.indexOf(d) < 0) {
          keys.push(d);
          let v2 = obj[key][d] = {};
          createItem(d, v2, keys.slice(0));
        }
        else {
          keys.push(d);
          obj[key][d] = null;
        }
        
      });
      
    };
    
    originalList.forEach(function (k: string) {
      tree[name] && createItem(k, tree[name], [name]);
    });
    
    let cleanTree = function (k: string, val: any) {
      
      delete val[k];
      
      Object.keys(val).forEach(function (key) {
        val[key] && cleanTree(key, val[key]);
      });
      
    };
    
    // get rid of circular references (clean it visually)
    cleanTree(name, tree[name]);
    
    return tree;
    
  };