Submatter/apps/collab-server/src/utils.ts

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import * as Y from "yjs";
/**
* Encode full Yjs document state as a base64 string for JSONB storage.
*/
export function yDocToBase64(doc: Y.Doc): string {
return Buffer.from(Y.encodeStateAsUpdate(doc)).toString("base64");
}
/**
* Decode a base64 string to a Yjs update payload.
*/
export function base64ToYUpdate(base64: string): Uint8Array {
return new Uint8Array(Buffer.from(base64, "base64"));
}
const OBJECT_PREFIX = "object:";
/**
* Parse collaboration document names of the form `object:{uuid}`.
*/
export function extractObjectId(documentName: string): string | null {
if (!documentName.startsWith(OBJECT_PREFIX)) {
return null;
}
const id = documentName.slice(OBJECT_PREFIX.length).trim();
return id.length > 0 ? id : null;
}