Function formatTreeNode

packages/utils/src/lib/text-formats/ascii/tree.ts:38–63

(
  node: TreeNode,
  prefix: string,
  maxWidth: number,
  keysMaxWidths: Record<string, number>,
)

}

function formatTreeNode(
  node: TreeNode,
  prefix: string,
  maxWidth: number,
  keysMaxWidths: Record<string, number>,
): string[] {
  const childPrefix = prefix.replace(/[└─]/g, ' ').replace(/├/g, '│');

  const prefixedName = `${prefix}${node.name}`;
  const padding = ' '.repeat(maxWidth + COL_GAP * 2 - prefixedName.length);
  const values = formatNodeValues(node.values, keysMaxWidths);
  const offsetValues = values ? `${padding}${values}` : '';
  const formattedNode = `${prefixedName}${offsetValues}`;

  return [
    formattedNode,
    ...(node.children?.flatMap((child, i, arr) =>
      formatTreeNode(
        child,
        i === arr.length - 1 ? `${childPrefix}└── ` : `${childPrefix}├── `,
        maxWidth,
        keysMaxWidths,
      ),
    ) ?? []),
  ];
}

function formatNodeValues(
  values: TreeNode['values'],