emojichain.js

const fs = require('fs');
const shaEmoji = require('./sha-emoji');

var BlockChain = require('./blockchain.json');

if (BlockChain.length == 0) {
  GenesisBlock(
    "👺😬👆😱😧👉🤕😺👍😮😷😳☝️🤝🤧🤒😻🤐👌🤛💩☝️🤕🎃👉👉👻👊👇👾🤒😻😳😮🤧😨🤞🤜🤐🖐🤖🤢🤚😪",
    Number(new Date()),
    "😂"
  )
}

function GenesisBlock(genesisHash, date, data) {
  WriteBlock({
    'index': 0,
    'phash': genesisHash,
    'hash': HashBlock(genesisHash, date, data),
    'date': date,
    'data': data
  });
}

function AddBlock(phash, index, date, data) {
  var verifiedBlockHash = BlockChain[BlockChain.length - 1]['hash'];
  if (verifiedBlockHash == phash && index == BlockChain.length) {
    WriteBlock({
      'index': index,
      'phash': phash,
      'hash': HashBlock(phash, date, data),
      'date': date,
      'data': data
    });
  } else {
    console.log("BlockChain out of sync... resyncing.");
  }
}

function WriteBlock(data) {
  BlockChain.push(data);
  fs.writeFileSync(__dirname + "/blockchain.json", JSON.stringify(BlockChain, null, 2), "UTF-8");
  console.log("Wrote block", data.hash);
}

function HashBlock(phash, date, data) {
  return shaEmoji(phash + date + data);
}

function CreateBlock(data) {
  AddBlock(BlockChain[BlockChain.length - 1]['hash'], BlockChain.length, Number(new Date()), data);
}