@avalabs/avalanchejs/src/serializable/fxs/secp256k1/input.ts

Avalanche Platform JS Library

import { packList, toListStruct } from '../../../utils/serializeList';
import { unpack } from '../../../utils/struct';
import { serializable } from '../../common/types';
import { Int } from '../../primitives';
import { TypeSymbols } from '../../constants';

/**
 * @see https://github.com/ava-labs/avalanchego/blob/master/vms/secp256k1fx/input.go
 * @see https://docs.avax.network/specs/coreth-atomic-transaction-serialization/#secp256k1-transfer-input
 * @see https://docs.avax.network/specs/avm-transaction-serialization/#secp256k1-transfer-input
 * @see https://docs.avax.network/specs/platform-transaction-serialization/#secp256k1-transfer-input
 */
@serializable()
export class Input {
  _type = TypeSymbols.Input;

  constructor(private readonly sigIndices: Int[]) {}

  static fromNative(sigIndicies: readonly number[]) {
    return new Input(sigIndicies.map((i) => new Int(i)));
  }

  static fromBytes(bytes: Uint8Array): [Input, Uint8Array] {
    const [sigIndices, remaining] = unpack(bytes, [toListStruct(Int)]);
    return [new Input(sigIndices), remaining];
  }

  values() {
    return this.sigIndices.map((i) => i.value());
  }

  toBytes(codec) {
    return packList(this.sigIndices, codec);
  }
}