'use strict';

var bitcore = require('bitcore');

function builder(options) {
  /* jshint maxstatements: 20 */
  /* jshint maxcomplexity: 10 */

  if (!options) {
    options = {};
  }

  if (!options.magicNumber) {
    options.magicNumber = bitcore.Networks.defaultNetwork.networkMagic.readUInt32LE(0);
  }

  options.Block = options.Block || bitcore.Block;
  options.BlockHeader = options.BlockHeader || bitcore.BlockHeader;
  options.Transaction = options.Transaction || bitcore.Transaction;
  options.MerkleBlock = options.MerkleBlock || bitcore.MerkleBlock;
  options.protocolVersion = options.protocolVersion || 70000;

  var exported = {
    constructors: {
      Block: options.Block,
      BlockHeader: options.BlockHeader,
      Transaction: options.Transaction,
      MerkleBlock: options.MerkleBlock
    },
    defaults: {
      protocolVersion: options.protocolVersion,
      magicNumber: options.magicNumber
    },
    commandsMap: {
      version: 'Version',
      verack: 'VerAck',
      ping: 'Ping',
      pong: 'Pong',
      block: 'Block',
      tx: 'Transaction',
      getdata: 'GetData',
      headers: 'Headers',
      notfound: 'NotFound',
      inv: 'Inventory',
      addr: 'Address',
      alert: 'Alert',
      reject: 'Reject',
      merkleblock: 'MerkleBlock',
      filterload: 'FilterLoad',
      filteradd: 'FilterAdd',
      filterclear: 'FilterClear',
      getblocks: 'GetBlocks',
      getheaders: 'GetHeaders',
      mempool: 'MemPool',
      getaddr: 'GetAddr'
    },
    commands: {}
  };

  for (var key in exported.commandsMap) {
    exported.commands[key] = require('./commands/' + key)(options);
  }

  return exported;

}

module.exports = builder;