Pien-Studio/packages/editor-core/src/serialization.ts

import { ProjectFileSchema, type Project, type ProjectFile } from "@pien-studio/types";
import { normalizeProject } from "./normalize";

export function serializeProjectFile(project: Project, options?: { checkpointCount?: number }): string {
  const document: ProjectFile = {
    format: "pien.project",
    version: 1,
    exportedAt: new Date().toISOString(),
    app: { name: "pien.studio", platform: "web" },
    project,
    assets: [],
    history: { checkpointCount: options?.checkpointCount ?? 0 },
  };
  return JSON.stringify(document, null, 2);
}

export function parseProjectFile(raw: string): { ok: true; project: Project } | { ok: false; error: string } {
  try {
    const data = JSON.parse(raw) as unknown;
    const result = ProjectFileSchema.safeParse(data);
    if (result.success) return { ok: true, project: normalizeProject(result.data.project) };
    return { ok: false, error: "Invalid project format" };
  } catch {
    return { ok: false, error: "Invalid JSON" };
  }
}