import { useWallet } from "@solana/wallet-adapter-react";
import { PublicKey } from "@solana/web3.js";
import { ITokenWithMetaAndAccount } from "@strata-foundation/spl-token-collective";
import { useMemo } from "react";
import { useUserTokensWithMeta } from "./useUserTokensWithMeta";
import { gql, useQuery } from "@apollo/client";

const GET_MINTS_IN_COLLECTION = gql`
  query GetMintsInCollection(
    $collection: PublicKey!
    $wallet: PublicKey!
    $limit: Int!
    $offset: Int!
  ) {
    nfts(
      owners: [$wallet]
      collection: $collection
      limit: $limit
      offset: $offset
    ) {
      mintAddress
    }
  }
`;

export function useCollectionOwnedAmount(collection: PublicKey | undefined): {
  matches: PublicKey[] | undefined;
  amount?: number;
  loading: boolean;
  error?: Error;
} {
  const { publicKey } = useWallet();
  const {
    data: { nfts } = {},
    error,
    loading,
  } = useQuery<{
    nfts: {
      mintAddress: PublicKey;
    }[];
  }>(GET_MINTS_IN_COLLECTION, {
    variables: {
      collection: collection?.toBase58(),
      wallet: publicKey?.toBase58(),
      offset: 0,
      limit: 1000,
    },
  });
  const matches = useMemo(() => {
    if (nfts) {
      return nfts.map((nft) => new PublicKey(nft.mintAddress));
    }
  }, [nfts, collection?.toBase58()]);

  const amount = useMemo(() => {
    if (matches) {
      return matches.reduce((acc, nft) => {
        return acc + 1;
      }, 0);
    }
  }, [matches]);

  return {
    error,
    loading,
    matches,
    amount,
  };
}