export const tokenizeBlock = (paragraph: string) => {
  for (const block of blockTokens) {
    const openTest = block.rx.test(paragraph),
      closeTest = block.closeRx.test(paragraph);

    if (closeTest) return block.create(paragraph).type;
    if (!openTest) continue;
    return block.create(paragraph);
  }
};

const blockTokens: {
  rx: RegExp;
  closeRx: RegExp;
  create: (line: string) => BlockToken;
}[] = [
  // this indicates that this is a grid block, all paragraphs within this block will be placed in a number of columns that match the number of sets of brackets are in this line
  {
    rx: /^(\[\]){2,}/g,
    closeRx: /\/\[\]/,
    create(line) {
      return {
        type: "grid",
        metadata: {
          columns: line.match(/\[\]/g)?.length,
        },
        children: [],
        closed: false,
      };
    },
  },
  {
    rx: /^(\[\[)/,
    closeRx: /\]\]/,
    create() {
      return {
        type: "card",
        metadata: {},
        children: [],
        closed: false,
      };
    },
  },
];