From 4faf0cfc1c53a76b23323777bd7c961053f1d63f Mon Sep 17 00:00:00 2001
From: masterchief164 <63920595+masterchief164@users.noreply.github.com>
Date: Wed, 14 Jun 2023 19:46:22 +0530
Subject: [PATCH] feat: headers first sync complete

---
 lib/blockchain/chain.js  | 30 ++++++++++++++++++++----------
 lib/net/pool.js          |  1 +
 lib/node/neutrino.js     |  4 +++-
 lib/protocol/networks.js |  2 +-
 4 files changed, 25 insertions(+), 12 deletions(-)

diff --git a/lib/blockchain/chain.js b/lib/blockchain/chain.js
index 907f2eb3b..1688463f9 100644
--- a/lib/blockchain/chain.js
+++ b/lib/blockchain/chain.js
@@ -583,7 +583,7 @@ class Chain extends AsyncEmitter {
     // UASF is now enforced (bip148) (mainnet-only).
     if (this.options.bip148 && this.network === Network.main) {
       if (witness !== thresholdStates.LOCKED_IN
-          && witness !== thresholdStates.ACTIVE) {
+        && witness !== thresholdStates.ACTIVE) {
         // The BIP148 MTP check is nonsensical in
         // that it includes the _current_ entry's
         // timestamp. This requires some hackery,
@@ -2000,20 +2000,30 @@ class Chain extends AsyncEmitter {
    */
 
   maybeSync() {
+    // console.log('maybeSync');
+    // console.log(this.synced);
     if (this.synced)
       return;
+    console.log('checkpoints');
 
     if (this.options.checkpoints) {
       if (this.height < this.network.lastCheckpoint)
         return;
     }
-
-    if (this.tip.time < util.now() - this.network.block.maxTipAge)
+    console.log(this.tip.time);
+    console.log(util.now() - this.network.block.maxTipAge);
+    console.log(this.network.block);
+    console.log(this.network.block.maxTipAge);
+    console.log(this.tip.time < util.now() - this.network.block.maxTipAge);
+    if (this.options.neutrino && this.tip.time < util.now() - 24 * 60 * 60)
       return;
-
-    if (!this.hasChainwork())
+    else if (!this.options.neutrino &&
+      this.tip.time < util.now() - this.network.block.maxTipAge)
       return;
 
+    if (!this.options.neutrino && !this.hasChainwork())
+      return;
+    console.log('full\n\n\n');
     this.synced = true;
     this.emit('full');
   }
@@ -2144,7 +2154,7 @@ class Chain extends AsyncEmitter {
 
     assert(hash);
 
-    for (;;) {
+    for (; ;) {
       const orphan = this.orphanMap.get(hash);
 
       if (!orphan)
@@ -2221,8 +2231,8 @@ class Chain extends AsyncEmitter {
           return pow.bits;
 
         while (prev.height !== 0
-          && prev.height % pow.retargetInterval !== 0
-          && prev.bits === pow.bits) {
+        && prev.height % pow.retargetInterval !== 0
+        && prev.bits === pow.bits) {
           const cache = this.getPrevCache(prev);
 
           if (cache)
@@ -2455,7 +2465,7 @@ class Chain extends AsyncEmitter {
       const state = await this.getState(prev, deployment);
 
       if (state === thresholdStates.LOCKED_IN
-          || state === thresholdStates.STARTED) {
+        || state === thresholdStates.STARTED) {
         version |= 1 << deployment.bit;
       }
     }
@@ -2640,7 +2650,7 @@ class ChainOptions {
   fromOptions(options) {
     if (!options.spv) {
       assert(options.blocks && typeof options.blocks === 'object',
-             'Chain requires a blockstore.');
+        'Chain requires a blockstore.');
     }
 
     this.blocks = options.blocks;
diff --git a/lib/net/pool.js b/lib/net/pool.js
index 0919112eb..7dafd5b2f 100644
--- a/lib/net/pool.js
+++ b/lib/net/pool.js
@@ -786,6 +786,7 @@ class Pool extends EventEmitter {
       this.logger.info('No loader peer.');
       return;
     }
+    this.chain.synced = false;
     peer.sendGetHeaders(locator);
     // this.emit('headersFull');
   }
diff --git a/lib/node/neutrino.js b/lib/node/neutrino.js
index b98db92ed..7b9519e56 100644
--- a/lib/node/neutrino.js
+++ b/lib/node/neutrino.js
@@ -164,7 +164,9 @@ class Neutrino extends Node {
       this.emit('reset', tip);
     });
 
-    this.pool.on('headersFull', () => {
+    this.chain.on('full', () => {
+      if (this.chain.height === 0)
+        return;
       this.logger.info('Block Headers are fully synced');
       console.log('Block Headers are fully synced \n\n\n\n\n');
       // this.pool.startFilterCheckPtSync(); // TODO: Maybe implement this later
diff --git a/lib/protocol/networks.js b/lib/protocol/networks.js
index 16e6bedf7..8c2db9e8e 100644
--- a/lib/protocol/networks.js
+++ b/lib/protocol/networks.js
@@ -792,7 +792,7 @@ regtest.block = {
   bip66hash: null,
   pruneAfterHeight: 1000,
   keepBlocks: 10000,
-  maxTipAge: 0xffffffff,
+  maxTipAge: 24 * 60 * 60,
   slowHeight: 0
 };