gqty

Version:
The No-GraphQL Client for TypeScript
55 lines (52 loc) • 1.57 kB
JavaScript
import { fromJSON } from 'flatted';
import { GQtyError } from '../../Error/index.mjs';
import '../../Utils/hash.mjs';
import { $meta } from '../../Accessor/meta.mjs';
import '../../Accessor/resolve.mjs';
import { fetchSelections } from '../resolveSelections.mjs';
import { updateCaches } from '../updateCaches.mjs';
import { isLegacyCacheSnapshot } from './prepareRender.mjs';

const createLegacyHydrateCache = ({
  accessor,
  cache,
  fetchOptions
}) => ({ cacheSnapshot, shouldRefetch = false }) => {
  const { cache: snapshot, selections: selectionSnapshots } = parseSnapshot(cacheSnapshot);
  if (snapshot) {
    cache.restore(snapshot);
  }
  if (selectionSnapshots && shouldRefetch) {
    const selections = /* @__PURE__ */ new Set();
    for (const [[root], ...snapshot2] of selectionSnapshots) {
      const { selection } = $meta(
        accessor[root]
      );
      selections.add(selection.fromJSON(snapshot2));
    }
    setTimeout(
      () => {
        fetchSelections(selections, {
          cache,
          fetchOptions: {
            ...fetchOptions,
            cachePolicy: "no-cache"
            // refetch
          }
        }).then((results) => updateCaches(results, [cache]));
      },
      shouldRefetch === true ? 0 : shouldRefetch
    );
  }
};
const parseSnapshot = (snapshot) => {
  try {
    const data = fromJSON(snapshot);
    if (!isLegacyCacheSnapshot(data)) {
      throw 1;
    }
    return data;
  } catch {
    throw new GQtyError(`Unrecognized snapshot format.`);
  }
};

export { createLegacyHydrateCache, parseSnapshot };