Function normalizeFeedPage

packages/shared/src/graphql/feed.ts:203–250

(
  data: FeedData | FeedItemData | FeedV2Data,
)

};

export const normalizeFeedPage = (
  data: FeedData | FeedItemData | FeedV2Data,
): FeedItemData => {
  const firstNode = data.page.edges[0]?.node;

  if (!firstNode) {
    return {
      page: {
        ...data.page,
        edges: [],
      },
    };
  }

  if (isFeedApiItem(firstNode)) {
    return data as FeedItemData;
  }

  if (isFeedV2Item(firstNode)) {
    return {
      page: {
        ...data.page,
        edges: (data as FeedV2Data).page.edges.reduce<
          Connection<FeedApiItem>['edges']
        >((normalizedEdges, edge) => {
          const normalizedEdge = normalizeFeedV2Edge(edge);

          if (normalizedEdge) {
            normalizedEdges.push(normalizedEdge);
          }

          return normalizedEdges;
        }, []),
      },
    };
  }

  if (isLegacyFeedPost(firstNode)) {
    return {
      page: {
        ...data.page,
        edges: (data as FeedData).page.edges.map(normalizeLegacyFeedEdge),
      },
    };
  }

  throw new Error('Unsupported feed page shape');
};

export enum FeedOrigin {
  TagChip = 'TAG_CHIP',