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export type Toc = {    children: TocNode[];};
export type TocNode = {    name: string;    slug: string;    children?: TocNode[];};
export type FlatTocNode = (TocNode & { parent?: TocNode });
export type FlatToc = FlatTocNode[];
export function flattenToc(toc: Toc): FlatToc {    const nodes: FlatToc = [];    const queue: FlatTocNode[] = [...toc.children];    let current: TocNode | undefined;    while ((current = queue.shift()) !== undefined) {        nodes.push(current);        if (current.children) {            queue.unshift(                ...current.children.map((node) => ({                    ...node,                    parent: current,                })),            );        }    }    return nodes;}
export function nodeHref(node: TocNode) {    if (node.slug === undefined) {        return '';    }    return `/docs${node.slug}`;}
export function nodeMatchHref(node: TocNode, href: string) {    if (node.slug === undefined) {        return false;    }    const ownHref = nodeHref(node);    if (ownHref === '/docs/introduction' && href === '/docs') {        return true;    }    return href === ownHref;}
export function nodeFullLabel(node: FlatTocNode) {    if (node.parent === undefined) {        return node.name[0].toUpperCase() + node.name.slice(1);    } else {        return `${            node.parent.name[0].toUpperCase() + node.parent.name.slice(1)        } : ${node.name[0].toUpperCase() + node.name.slice(1)}`;    }}