Class FileSystemStore

apps/webuiapps/src/lib/FileSystemStore.ts:31–710

 * Manages in-memory file tree structure
 */
export class FileSystemStore {
  private nodes: Map<string, FileNode>;
  private pathIndex: Map<string, string>;
  private rootId: string;
  private listeners: Set<FileSystemListener>;
  private fileApi?: FileOperations;

  constructor(fileApi?: FileOperations) {
    this.nodes = new Map();
    this.pathIndex = new Map();
    this.rootId = 'root';
    this.listeners = new Set();
    this.fileApi = fileApi;

    // Initialize root node
    this.initRoot();
  }

  /**
   * Initialize root node
   */
  private initRoot(): void {
    const rootNode: FileNode = {
      id: this.rootId,
      name: '',
      path: '/',
      type: 'folder',
      parentId: null,
      children: [],
      metadata: {
        createdAt: Date.now(),
        updatedAt: Date.now(),
      },
    };
    this.nodes.set(this.rootId, rootNode);
    this.pathIndex.set('/', this.rootId);
  }

  // ============ Event System ============

  /**
   * Emit event
   */
  private emit(type: FileSystemEventType, nodeId?: string, path?: string): void {
    const event: FileSystemEvent = {
      type,
      nodeId,
      path,
      timestamp: Date.now(),
    };
    this.listeners.forEach((listener) => {
      try {
        listener(event);
      } catch (error) {
        console.error('[FileSystemStore] Listener error:', error);
      }
    });
  }