import type { PrivateKey, PublicKey } from '@hashgraph/sdk';

// index:
// < 0 => alternative deriviations or forms (mnemonics have tons of these)
// = 0 => canonical deriviation of a key from the wallet
// - mnemonic, non-legacy root + .derive(0)
// - ledger, index: 0
// - others, as-is
// > 0 => additional accounts from the wallet
// - mnemonic, non-legacy root + .derive(N)
// - ledger, index: N
// - others, not supported

/* eslint-disable */
export abstract class WalletHedera {
  // produce a transaction signer
  // that can be used to sign transactions
  abstract getTransactionSigner(
    index: number
  ): Promise<(transactionBody: Uint8Array) => Promise<Uint8Array>>;

  // get the public key associated with the wallet
  abstract getPublicKey(index: number): Promise<PublicKey | undefined>;

  /** Get the private key associated with the wallet (if avaialble) */
  // eslint-disable-next-line @typescript-eslint/no-unused-vars
  getPrivateKey(_index: number): Promise<PrivateKey | null> {
    return Promise.resolve(null);
  }

  // returns true if there is an accessible private key
  hasPrivateKey(): boolean {
    return false;
  }

  get minIndex(): number {
    return 0;
  }

  get maxIndex(): number {
    return 0;
  }
}