From 90210663544c425e19bd1d36990492bfba5717bd Mon Sep 17 00:00:00 2001
From: MoneroOcean <support@moneroocean.stream>
Date: Fri, 22 Jan 2021 05:55:16 +0000
Subject: [PATCH] Eth support

---
 index.js     | 21 +++++++++++++++++++--
 package.json |  2 +-
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/index.js b/index.js
index 144abe0..ada9922 100644
--- a/index.js
+++ b/index.js
@@ -54,7 +54,14 @@ function getMerkleRoot(transactions) {
 
 let last_epoch_number;
 let last_seed_hash;
-const diff1 = 0x00000000ff000000000000000000000000000000000000000000000000000000;
+
+module.exports.baseRavenDiff = function() {
+  return parseInt('0x00000000ff000000000000000000000000000000000000000000000000000000');
+};
+
+module.exports.baseEthDiff = function() {
+  return parseInt('0x00000000ffff0000000000000000000000000000000000000000000000000000');
+};
 
 module.exports.RavenBlockTemplate = function(rpcData, poolAddress) {
   const poolAddrHash = bitcoin.address.fromBase58Check(poolAddress).hash;
@@ -128,7 +135,7 @@ module.exports.RavenBlockTemplate = function(rpcData, poolAddress) {
     last_epoch_number = epoch_number;
   }
 
-  const difficulty = parseFloat((diff1 / bignum(rpcData.target, 16).toNumber()).toFixed(9));
+  const difficulty = parseFloat((module.exports.baseRavenDiff() / bignum(rpcData.target, 16).toNumber()).toFixed(9));
 
   return {
     blocktemplate_blob: blob.toString('hex'),
@@ -139,6 +146,7 @@ module.exports.RavenBlockTemplate = function(rpcData, poolAddress) {
     difficulty:         difficulty,
     height:             rpcData.height,
     bits:               rpcData.bits,
+    prev_hash:          rpcData.previousblockhash,
   };
 };
 
@@ -171,4 +179,13 @@ module.exports.constructNewRavenBlob = function(blockTemplate, nonceBuff, mixhas
 module.exports.constructNewDeroBlob = function(blockTemplate, nonceBuff) {
   nonceBuff.copy(blockTemplate, 39, 0, 4);
   return blockTemplate;
+};
+
+module.exports.EthBlockTemplate = function(rpcData) {
+  const difficulty = parseFloat((module.exports.baseEth() / bignum(rpcData[2].lstrip("0x"), 16).toNumber()).toFixed(19));
+  return {
+    hash:               rpcData[0].lstrip("0x"),
+    seed_hash:          rpcData[1].lstrip("0x"),
+    difficulty:         difficulty
+  };
 };
\ No newline at end of file
diff --git a/package.json b/package.json
index efcc257..5283e5e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cryptoforknote-util",
-  "version": "9.0.18",
+  "version": "9.1.0",
   "main": "cryptoforknote-util",
   "author": {
     "name": "LucasJones",