import type { KbxScreenPreference } from '@kbx/contracts'

const PREFIX = 'kbx.screen.preference.'

export function loadScreenPreference(screenId: string): KbxScreenPreference | null {
  const raw = localStorage.getItem(PREFIX + screenId)
  if (!raw) return null
  try { return JSON.parse(raw) as KbxScreenPreference } catch { return null }
}

export function saveScreenPreference(preference: KbxScreenPreference) {
  localStorage.setItem(PREFIX + preference.screenId, JSON.stringify(preference))
}

export function clearScreenPreference(screenId: string) {
  localStorage.removeItem(PREFIX + screenId)
}