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import { VisitorCacheDTO } from '../types.ts'import { IVisitorCacheImplementation } from './IVisitorCacheImplementation.ts'
export const VISITOR_PREFIX = 'FS_VISITOR_CACHE_'export class DefaultVisitorCache implements IVisitorCacheImplementation {  cacheVisitor (visitorId: string, data:VisitorCacheDTO): Promise<void> {    localStorage.setItem(VISITOR_PREFIX + visitorId, JSON.stringify(data))    return Promise.resolve()  }
  lookupVisitor (visitorId: string): Promise<VisitorCacheDTO> {    const data = localStorage.getItem(VISITOR_PREFIX + visitorId)    return Promise.resolve(data ? JSON.parse(data) : null)  }
  flushVisitor (visitorId: string): Promise<void> {    localStorage.removeItem(VISITOR_PREFIX + visitorId)    return Promise.resolve()  }}