# All files / src/utils RecursiveRender.tsx

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     import { type ReactElement, type ReactNode } from "react";

    export type RecursiveItem<T> = T & {
      items?: readonly RecursiveItem<T>[];
    };

    export interface RenderRecursiveItemsProps<T> {
      item: RecursiveItem<T>;
      depth: number;
      parents: readonly RecursiveItem<T>[];
      children?: ReactNode;
    }

    export interface RecursiveRenderProps<T> {
      items: readonly RecursiveItem<T>[];
      render(props: RenderRecursiveItemsProps<T>): ReactElement | null;
      depth?: number;
      getItemKey?(item: RecursiveItem<T>): string;
      parents?: readonly RecursiveItem<T>[];
    }

    export function RecursiveRender<T>(
      props: RecursiveRenderProps<T>
    ): ReactElement {
      const { items, depth = 0, render: Render, getItemKey, parents = [] } = props;

      return (
        <>
          {items.map((item, i) => {
            let children: ReactNode;
            if (item.items?.length) {
              children = (
                <RecursiveRender
                  depth={depth + 1}
                  items={item.items}
                  render={Render}
                  getItemKey={getItemKey}
                  parents={[...parents, item]}
                />
              );
            }

            return (
              <Render
                key={getItemKey ? getItemKey(item) : `${depth}-${i}`}
                item={item}
                depth={depth}
                parents={parents}
              >
                {children}
              </Render>
            );
          })}
        </>
      );
    }