derma/src/facebook/get-page-events.mjs

import { do_request } from './graphql-api-request.mjs';
const sleep = (s) => new Promise((res) => setTimeout(res, s * 1000));

/// PageEventsTabPastEventsCardRendererQuery
export const past_render_query = async ({ pageID }) => {
  const doc_id = '4421910857857782';
  const resp = await do_request(doc_id, { pageID });
  const page = resp?.data?.page?.past_events ?? null;
  return page;
};

/// PageEventsTabPastEventsCardPaginationQuery
export const past_pagination_query = async ({ pageID, cursor }) => {
  const doc_id = '6953034388071359';
  const count = 9;
  const resp = await do_request(doc_id, { pageID, cursor, count });
  const page = resp?.data?.page?.past_events ?? null;
  return page;
};

/// PageEventsTabUpcomingEventsCardRendererQuery
export const upcoming_render_query = async ({ pageID }) => {
  const doc_id = '5182274978466320';
  const resp = await do_request(doc_id, { pageID });
  const page = resp?.data?.page?.upcoming_events ?? null;
  return page;
};

// PageEventsTabUpcomingEventsCardPaginationQuery
export const upcoming_pagination_query = async ({ pageID, cursor }) => {
  const doc_id = '6985622308176123';
  let count = 9;
  const resp = await do_request(doc_id, { pageID, cursor, count });
  const page = resp?.data?.page?.upcoming_events ?? null;
  return page;
};

const get_page_events = async ({
  pageID,
  get_past_events,
  get_upcoming_events
}) => {
  let past_events = [];

  if (get_past_events) {
    const result = await past_render_query({ pageID });

    if (result !== null) {
      let { has_next_page, end_cursor: cursor } = result.page_info;

      let { edges } = result;
      while (has_next_page) {
        sleep(2);
        const paginationResult = await past_pagination_query({
          cursor,
          pageID
        });
        if (paginationResult === null) {
          break;
        }
        edges = [...edges, ...paginationResult.edges];
        has_next_page = paginationResult?.page_info?.has_next_page ?? false;
        cursor = paginationResult.page_info.end_cursor;
      }
      past_events = [...edges];
    }
  }

  let upcoming_events = [];

  if (get_upcoming_events) {
    const result = await upcoming_render_query({ pageID });
    if (result !== null) {
      upcoming_events = [];
      let { has_next_page, end_cursor: cursor } = result.page_info;
      let { edges } = result;
      while (has_next_page) {
        sleep(2);
        const paginationResult = await upcoming_pagination_query({
          cursor,
          pageID
        });
        if (paginationResult === null) {
          break;
        }
        edges = [...edges, ...paginationResult.edges];
        has_next_page = paginationResult?.page_info?.has_next_page ?? false;
        cursor = paginationResult?.page_info?.end_cursor;
      }
      upcoming_events = [...edges];
    }
  }

  return [...upcoming_events, ...past_events].map(({ node }) => node);
};

export default get_page_events;