저장·자산·공유 연동

import {
  migrateDeckDocument, parseDeckDocument,
} from "@reopt-ai/opt-deck/server";

export function openImportedJson(text: string) {
  const input: unknown = JSON.parse(text);
  // Accept legacy v1 and current v2. Throws on invalid content.
  return migrateDeckDocument(input);
}

export function openCurrentServerRecord(payload: unknown) {
  // Current v2 only. Use this at a host API boundary.
  return parseDeckDocument(payload);
}

import type { DeckDocument } from "@reopt-ai/opt-deck/server";

export type StoredDeck = { document: DeckDocument; serverVersion: number };

// Host-defined endpoint and payload; not a built-in opt-deck API.
export async function saveSnapshot(
  id: string, document: DeckDocument, serverVersion: number,
  signal: AbortSignal,
): Promise<number> {
  const response = await fetch("/api/presentations/" + encodeURIComponent(id), {
    method: "PUT",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({ document, expectedVersion: serverVersion }),
    signal,
  });
  if (response.status === 409) throw new Error("Reload or reconcile the conflicting version");
  if (!response.ok) throw new Error("Save failed; retain the local draft");
  const result: unknown = await response.json();
  if (!result || typeof result !== "object" || !("serverVersion" in result)
      || !Number.isSafeInteger(result.serverVersion)) {
    throw new Error("Invalid save response");
  }
  return result.serverVersion as number;
}

import type { DeckEditorProps } from "@reopt-ai/opt-deck";
import { assetSchema } from "@reopt-ai/opt-deck/server";

export const uploadAsset: NonNullable<DeckEditorProps["onAssetUpload"]> =
  async (file, signal) => {
    const body = new FormData();
    body.set("file", file);
    // The host validates ownership, media type and file size.
    const response = await fetch("/api/presentation-assets", {
      method: "POST", body, signal,
    });
    if (!response.ok) throw new Error("Asset upload failed");
    return assetSchema.parse(await response.json());
  };