web-cad/frontend/src/crdt/YjsDocument.ts

import * as Y from 'yjs';

type ProjectMeta = {
  id: string;
  name: string;
  createdAt: number;
  updatedAt: number;
};

type Layer = {
  id: string;
  name: string;
  visible: boolean;
  locked: boolean;
  color?: string;
  lineType?: string;
  transparency?: number;
  sortOrder?: number;
};

type Element = {
  id: string;
  type: string;
  layerId: string;
  x: number;
  y: number;
  width: number;
  height: number;
  properties: Record<string, any>;
};

type Block = {
  id: string;
  name: string;
  elements: string[]; // element IDs
};

type BlockInstance = {
  id: string;
  blockId: string;
  x: number;
  y: number;
  properties: Record<string, any>;
};

export class YjsDocument {
  doc: Y.Doc;
  projectMeta: Y.Map<any>;
  layers: Y.Map<Layer>;
  elements: Y.Array<Element>;
  blocks: Y.Map<Block>;
  blockInstances: Y.Array<BlockInstance>;

  constructor() {
    this.doc = new Y.Doc();
    this.projectMeta = this.doc.getMap('projectMeta');
    this.layers = this.doc.getMap('layers');
    this.elements = this.doc.getArray('elements');
    this.blocks = this.doc.getMap('blocks');
    this.blockInstances = this.doc.getArray('blockInstances');
  }

  destroy() {
    this.doc.destroy();
  }
}