import { addCollection } from '@iconify/vue/offline'

let iconCollectionsRegistered = false
let iconCollectionsPromise = null

export async function registerLocalIconCollections() {
  if (iconCollectionsRegistered) {
    return
  }

  if (!iconCollectionsPromise) {
    iconCollectionsPromise = import('./iconify.collections.js')
      .then(({ LOCAL_ICON_COLLECTIONS }) => {
        Object.values(LOCAL_ICON_COLLECTIONS).forEach((collection) => {
          addCollection(collection)
        })
        iconCollectionsRegistered = true
      })
      .catch((error) => {
        iconCollectionsPromise = null
        throw error
      })
  }

  await iconCollectionsPromise
}