export interface LLMConfig {
  provider: 'ollama';
  model: string;
  baseUrl: string;
  temperature: number;
}

export interface DocumentMetadata {
  path: string;
  type: string;
  lastModified: number;
  size: number;
  createdAt?: string;
  modifiedAt?: string;
  accessedAt?: string;
  hasEmbeddings?: boolean;
  hasOcr?: boolean;
}

export class ServiceError extends Error {
  constructor(message: string) {
    super(message);
    this.name = 'ServiceError';
  }
}

// For CommonJS compatibility
if (typeof module !== 'undefined' && module.exports) {
  module.exports = {
    ServiceError,
    // Export interface types for TypeScript
    LLMConfig: Symbol.for('LLMConfig'),
    DocumentMetadata: Symbol.for('DocumentMetadata')
  };
}