import AsyncStorage from '@react-native-async-storage/async-storage'

export const K = {
  DEMO_TOKEN: '@xuqm:demoToken',
  IM_TOKEN:   '@xuqm:imToken',
  PROFILE:    '@xuqm:profile',
  CONTACTS:   '@xuqm:contacts',
} as const

export async function save(key: string, value: unknown): Promise<void> {
  await AsyncStorage.setItem(key, JSON.stringify(value))
}

export async function load<T>(key: string): Promise<T | null> {
  const raw = await AsyncStorage.getItem(key)
  if (!raw) return null
  try { return JSON.parse(raw) as T } catch { return null }
}

export async function remove(key: string): Promise<void> {
  await AsyncStorage.removeItem(key)
}

export async function clearSession(): Promise<void> {
  await AsyncStorage.multiRemove([K.DEMO_TOKEN, K.IM_TOKEN, K.PROFILE])
}