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// @flow
import type { GraphQLContext } from '../../';
import type { PaginationOptions } from '../../utils/paginate-arrays';
import { encode, decode } from '../../utils/base64';
import { getDirectMessageThreadsByUser } from '../../models/directMessageThread';
export default async (
_: any,
{ first = 15, after }: PaginationOptions,
{ user }: GraphQLContext
) => {
const cursor = decode(after);
// Get the index from the encoded cursor, asdf234gsdf-2 => ["-2", "2"]
const lastDigits = cursor.match(/-(\d+)$/);
const lastThreadIndex =
lastDigits && lastDigits.length > 0 && parseInt(lastDigits[1], 10);
const threads = await getDirectMessageThreadsByUser(user.id, {
first,
after: lastThreadIndex,
});
return {
pageInfo: {
hasNextPage: threads && threads.length >= first,
},
edges: threads.map((thread, index) => ({
cursor: encode(`${thread.id}-${lastThreadIndex + index + 1}`),
node: thread,
})),
};
};
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