function buildHierarchy()

in viz-lib/src/visualizations/sunburst/initSunburst.ts [58:124]
47 lines of code
9 McCabe index (conditional complexity)

function buildHierarchy(data: any) {
  data = isDataInHierarchyFormat(data) ? buildNodesFromHierarchyData(data) : buildNodesFromTableData(data);

  // build tree
  const root = {
    name: "root",
    children: [],
  };

  data.forEach((d: any) => {
    const nodes = d.nodes;
    const size = parseInt(d.size, 10);

    // build graph, nodes, and child nodes
    let currentNode = root;
    for (let j = 0; j < nodes.length; j += 1) {
      let children = currentNode.children;
      const nodeName = nodes[j];
      const isLeaf = j + 1 === nodes.length;

      if (!children) {
        currentNode.children = children = [];
        children.push({
          // @ts-expect-error ts-migrate(2322) FIXME: Type 'string' is not assignable to type 'never'.
          name: exitNode,
          // @ts-expect-error ts-migrate(2322) FIXME: Type 'any' is not assignable to type 'never'.
          size: currentNode.size,
        });
      }

      // @ts-expect-error ts-migrate(2339) FIXME: Property 'name' does not exist on type 'never'.
      let childNode = find(children, child => child.name === nodeName);

      if (isLeaf && childNode) {
        // @ts-expect-error ts-migrate(2339) FIXME: Property 'children' does not exist on type 'never'... Remove this comment to see the full error message
        childNode.children = childNode.children || [];
        // @ts-expect-error ts-migrate(2339) FIXME: Property 'children' does not exist on type 'never'... Remove this comment to see the full error message
        childNode.children.push({
          name: exitNode,
          size,
        });
      } else if (isLeaf) {
        children.push({
          // @ts-expect-error ts-migrate(2322) FIXME: Type 'any' is not assignable to type 'never'.
          name: nodeName,
          // @ts-expect-error ts-migrate(2322) FIXME: Type 'number' is not assignable to type 'never'.
          size,
        });
      } else {
        if (!childNode) {
          // @ts-expect-error ts-migrate(2322) FIXME: Type '{ name: any; children: never[]; }' is not as... Remove this comment to see the full error message
          childNode = {
            name: nodeName,
            children: [],
          };
          // @ts-expect-error ts-migrate(2345) FIXME: Argument of type 'undefined' is not assignable to ... Remove this comment to see the full error message
          children.push(childNode);
        }

        // @ts-expect-error ts-migrate(2322) FIXME: Type 'undefined' is not assignable to type '{ name... Remove this comment to see the full error message
        currentNode = childNode;
      }
    }
  });

  return root;
}