import { computed, getCurrentInstance, inject, provide, unref } from 'vue'
import type { MaybeRef, Ref } from 'vue'

export function useGlobalConfig(
  key: string,
  defaultValue: unknown = undefined,
): Ref<unknown> {
  const config = inject('GLOBAL_CONFIG') as MaybeRef<unknown>

  if (key)
    return computed(() => unref(config)?.[key] ?? defaultValue)
  else
    return config
}

export function provideGlobalConfig(config, app) {
  const inSetup = !!getCurrentInstance()

  const provideFn = app?.provide ?? (inSetup ? provide : undefined)

  if (!provideFn)
    return

  provideFn('GLOBAL_CONFIG', config)

  return config
}