kodadot/nft-gallery

import { getRandomValues } from '@/components/unique/utils'
import { mapToId } from '@/utils/mappers'
import { unwrapSafe } from '@/utils/uniquery'

export function useNewCollectionId() {
  const newCollectionId = ref<number>()
  const randomNumbers = getRandomValues(10).map(String)

  const { data, error, loading, refetch } = useGraphql({
    queryName: 'existingCollectionList',
    variables: {
      ids: randomNumbers,
    },
  })

  watch(data, () => {
    if (data.value) {
      const collectionEntities = data.value.collectionEntities
      const collectionList = unwrapSafe(collectionEntities)
      const existingIds = collectionList.map(mapToId)
      const newId = randomNumbers.find(id => !existingIds.includes(id))
      newCollectionId.value = Number(newId)
    }
  })

  return {
    newCollectionId,
    loading,
    error,
    refetch,
  }
}

export function useStatemineNewCollectionId() {
  const { apiInstance } = useApi()
  const { $consola } = useNuxtApp()

  const getCollectionId = async () => {
    try {
      const api = await apiInstance.value
      const result = await api.query.nfts.nextCollectionId()

      return result.unwrap().toNumber()
    }
    catch (error) {
      $consola.error('Error getting collection id', error)
      return undefined
    }
  }

  return {
    nextCollectionId: getCollectionId,
  }
}