import payload from '../dump-2000';

var bitcore = require('bitcore-lib-tcr-with-lyra2z');

(function () {

  // const addNetworkToBlockClass = function (Class, network, BlockHeader) {
  //   return class A extends Class {
  //     static get network() {
  //       return network;
  //     }
  //
  //     static get BlockHeader() {
  //       return BlockHeader;
  //     }
  //   };
  // };
  const addNetworkToBlockHeaderClass = function (Class, network) {
    return class A extends Class {
      static get network() {
        return network;
      }
    };
  };
  var $ = bitcore.util.preconditions;
  // let Block = options.Block || bitcore.Block;
  let BlockHeader = bitcore.BlockHeader;
  // let Transaction = options.Transaction || bitcore.Transaction;
  // let MerkleBlock = options.MerkleBlock || bitcore.MerkleBlock;
  // let protocolVersion = options.protocolVersion || options.network.protocolVersion || 90026;

  BlockHeader = addNetworkToBlockHeaderClass(BlockHeader, bitcore.Networks.testnet);
  // Block = addNetworkToBlockClass(options.Block, options.network, options.BlockHeader);

// var utils = require('../utils');
  var BufferReader = bitcore.encoding.BufferReader;
  $.checkArgument(payload && payload.length > 0, 'No data found to create Headers message');
  var parser = new BufferReader(payload);
  var count = parser.readVarintNum();

  let headers: any[] = [];
  for (var i = 0; i < count; i++) {

    var header = BlockHeader.fromBufferReader(parser);
    headers.push(header);
    var txn_count = parser.readUInt8();
    $.checkState(txn_count === 0, 'txn_count should always be 0');
  }
  // utils.checkFinished(parser);

  if(!parser.finished()) {
    throw new Error('Data still available after parsing');
  }
})();