Sanity utils

utils.ts

import type {
  Divider,
  ListItem,
  ListItemBuilder,
  StructureBuilder,
  View,
  ViewBuilder,
} from "sanity/structure";

export const singleton = (
  S: StructureBuilder,
  title: string,
  id: string,
  views: Array<View | ViewBuilder> = []
): ListItemBuilder =>
  S.listItem()
    .title(title)
    .id(id)
    .child(
      S.document()
        .schemaType(id)
        .documentId(id)
        .views([S.view.form(), ...views])
    );

export const group = (
  S: StructureBuilder,
  title: string,
  items: (ListItemBuilder | ListItem | Divider)[]
): ListItemBuilder =>
  S.listItem().title(title).child(S.list().title(title).items(items));

/**
 * Return the text of a block type as a single string. Use in schema previews.
 */
export function getBlockText(
  block?: {
    children?: {
      text: string;
    }[];
  }[],
  lineBreakChar: string = "↵ "
) {
  return (
    block?.reduce((a, c, i) => {
      const text = c.children?.flatMap((c) => c.text).join("") || "";
      return a + text + (i !== block.length - 1 ? lineBreakChar : "");
    }, "") || ""
  );
}