function buildHierarchy()

in viz-lib/src/visualizations/sunburst/initSunburst.js [57:113]

• 47 lines of code
• 9 McCabe index (conditional complexity)

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

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

  data.forEach(d => {
    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({
          name: exitNode,
          size: currentNode.size,
        });
      }

      let childNode = find(children, child => child.name === nodeName);

      if (isLeaf && childNode) {
        childNode.children = childNode.children || [];
        childNode.children.push({
          name: exitNode,
          size,
        });
      } else if (isLeaf) {
        children.push({
          name: nodeName,
          size,
        });
      } else {
        if (!childNode) {
          childNode = {
            name: nodeName,
            children: [],
          };
          children.push(childNode);
        }

        currentNode = childNode;
      }
    }
  });

  return root;
}