const PREFIX = 'cz:'

function parse<T>(raw: string | null): T | null {
  if (raw === null) return null
  try {
    return JSON.parse(raw) as T
  }
  catch {
    return null
  }
}

export const storage = {
  get<T>(key: string): T | null {
    return parse<T>(localStorage.getItem(PREFIX + key))
  },
  set<T>(key: string, value: T): void {
    localStorage.setItem(PREFIX + key, JSON.stringify(value))
  },
  remove(key: string): void {
    localStorage.removeItem(PREFIX + key)
  },
  sessionGet<T>(key: string): T | null {
    return parse<T>(sessionStorage.getItem(PREFIX + key))
  },
  sessionSet<T>(key: string, value: T): void {
    sessionStorage.setItem(PREFIX + key, JSON.stringify(value))
  },
  sessionRemove(key: string): void {
    sessionStorage.removeItem(PREFIX + key)
  },
}