import { z } from "zod/v4";

/**
 * The universal typed pointer to a workspace object (plan §7.1).
 *
 * A reference identifies a workspace object without knowing how to render
 * it: hosts resolve presentation per kind (file → FilePreview, member →
 * UserChip, app_record → the owning app's registered renderer, task/event →
 * native components). The same shape is used by tree UIs, tool result
 * cards, and the future `coline.references` API.
 */

const referenceIdSchema = z.string().trim().min(1).max(200);

export const colineReferenceSchema = z.discriminatedUnion("kind", [
  z.object({ kind: z.literal("file"), id: referenceIdSchema }),
  z.object({ kind: z.literal("member"), id: referenceIdSchema }),
  z.object({ kind: z.literal("app_record"), id: referenceIdSchema }),
  z.object({ kind: z.literal("task"), id: referenceIdSchema }),
  z.object({ kind: z.literal("event"), id: referenceIdSchema }),
]);

export type ColineReference = z.infer<typeof colineReferenceSchema>;
export type ColineReferenceKind = ColineReference["kind"];