@bpanel/chain-sockets/dist/actions.js

A utility plugin for bPanel for managing blockchain state in your redux store

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.watchChain = watchChain;
exports.subscribeBlockConnect = subscribeBlockConnect;
exports.setChainTip = setChainTip;

var _bcoin = require('bcoin');

var _bpanelUtils = require('@bpanel/bpanel-utils');

var _hsd = require('hsd');

function watchChain() {
  return {
    type: 'EMIT_SOCKET',
    bsock: {
      type: 'broadcast',
      message: 'watch chain'
    }
  };
}

function subscribeBlockConnect() {
  return {
    type: 'EMIT_SOCKET',
    bsock: {
      type: 'subscribe',
      message: 'block connect',
      responseEvent: 'new block'
    }
  };
}

function setChainTip(entry) {
  return function (dispatch, getState) {
    var currentClient = getState().clients.currentClient;

    var blockMeta = void 0;
    if (currentClient.chain === 'handshake') blockMeta = _hsd.ChainEntry.fromRaw(entry);else blockMeta = _bcoin.ChainEntry.fromRaw(entry);

    var calcProgress = _bpanelUtils.chain.calcProgress;
    var _blockMeta = blockMeta,
        time = _blockMeta.time,
        hash = _blockMeta.hash,
        height = _blockMeta.height;

    var genesis = getState().chain.genesis.time;
    var prevProgress = getState().chain.progress;
    var progress = calcProgress(genesis, time);
    var chain = { tip: hash, progress: progress, height: height };
    if (progress > 0.8 || progress - prevProgress > 0.0000001) {
      // only update the chain tip if
      // progress is noticeably different
      // should resolve some frontend performance issues
      return dispatch({
        type: 'SET_CHAIN_TIP',
        payload: chain
      });
    }
  };
}