From 363ef03057889e9bb1e44f529c968a6e3a8aff73 Mon Sep 17 00:00:00 2001
From: Manav Desai <manav27202@gmail.com>
Date: Thu, 1 Jun 2023 16:23:37 -0500
Subject: [PATCH] feat: add checkKeyFilter

---
 lib/client/node.js       |  4 ++++
 lib/node/http.js         |  7 +++++++
 lib/wallet/client.js     | 13 +++++++++++++
 lib/wallet/index.js      |  1 -
 lib/wallet/nodeclient.js | 13 +++++++++++++
 lib/wallet/nullclient.js | 13 +++++++++++++
 6 files changed, 50 insertions(+), 1 deletion(-)

diff --git a/lib/client/node.js b/lib/client/node.js
index 50800cac1..7822408d1 100644
--- a/lib/client/node.js
+++ b/lib/client/node.js
@@ -169,6 +169,10 @@ class NodeClient extends Client {
     return this.get(`/filter/${filter}`);
   }
 
+  checkKeyFilter(key, filter) {
+    return this.call('check key filter', key, filter);
+  }
+
   /**
    * Add a transaction to the mempool and broadcast it.
    * @param {TX} tx
diff --git a/lib/node/http.js b/lib/node/http.js
index 8448ec015..838aa9be7 100644
--- a/lib/node/http.js
+++ b/lib/node/http.js
@@ -498,6 +498,13 @@ class HTTP extends Server {
       return null;
     });
 
+    socket.hook('check key filter', (...args) => {
+      const valid = new Validator(args);
+      const key = valid.buf(0);
+      const filter = valid.buf(1);
+      return this.pool.checkKeyFilter(key, filter);
+    });
+
     socket.hook('estimate fee', (...args) => {
       const valid = new Validator(args);
       const blocks = valid.u32(0);
diff --git a/lib/wallet/client.js b/lib/wallet/client.js
index 768f38e50..93c521581 100644
--- a/lib/wallet/client.js
+++ b/lib/wallet/client.js
@@ -12,6 +12,8 @@ const NodeClient = require('../client/node');
 const util = require('../utils/util');
 const TX = require('../primitives/tx');
 const hash256 = require('bcrypto/lib/hash256');
+const WalletKey = require('./walletkey');
+const Filter = require('../primitives/filter');
 
 const parsers = {
   'block connect': (entry, txs) => parseBlock(entry, txs),
@@ -71,6 +73,17 @@ class WalletClient extends NodeClient {
     return super.setFilter(filter.toRaw());
   }
 
+  /**
+   * Check filter against wallet key ring
+   * @param {WalletKey} ring
+   * @param {Filter} filter
+   * @returns {Promise}
+   */
+
+  async checkKeyFilter(ring, filter) {
+    return super.checkKeyFilter(ring, filter);
+  }
+
   async rescan(start) {
     if (Buffer.isBuffer(start))
       start = util.revHex(start);
diff --git a/lib/wallet/index.js b/lib/wallet/index.js
index 3e49f823a..304662ab7 100644
--- a/lib/wallet/index.js
+++ b/lib/wallet/index.js
@@ -12,7 +12,6 @@
 
 exports.Account = require('./account');
 exports.Client = require('./client');
-exports.NeutrinoClient = require('./neutrinoclient');
 exports.common = require('./common');
 exports.HTTP = require('./http');
 exports.layout = require('./layout');
diff --git a/lib/wallet/nodeclient.js b/lib/wallet/nodeclient.js
index 9f6c43600..8372b73c0 100644
--- a/lib/wallet/nodeclient.js
+++ b/lib/wallet/nodeclient.js
@@ -8,6 +8,8 @@
 
 const assert = require('bsert');
 const AsyncEmitter = require('bevent');
+const WalletKey = require('./walletkey');
+const Filter = require('../primitives/filter');
 
 /**
  * Node Client
@@ -174,6 +176,17 @@ class NodeClient extends AsyncEmitter {
     this.node.pool.queueFilterLoad();
   }
 
+  /**
+   * Check filter against wallet key ring
+   * @param {WalletKey} ring
+   * @param {Filter} filter
+   * @returns {Promise}
+   */
+
+  async checkKeyFilter(ring, filter) {
+    this.node.pool.checkKeyFilter(ring, filter);
+  }
+
   /**
    * Estimate smart fee.
    * @param {Number?} blocks
diff --git a/lib/wallet/nullclient.js b/lib/wallet/nullclient.js
index 744629d4b..68221a397 100644
--- a/lib/wallet/nullclient.js
+++ b/lib/wallet/nullclient.js
@@ -8,6 +8,8 @@
 
 const assert = require('bsert');
 const EventEmitter = require('events');
+const WalletKey = require('./walletkey');
+const Filter = require('../primitives/filter');
 
 /**
  * Null Client
@@ -130,6 +132,17 @@ class NullClient extends EventEmitter {
     this.wdb.emit('reset filter');
   }
 
+  /**
+   * Check filter against wallet key ring
+   * @param {WalletKey} ring
+   * @param {Filter} filter
+   * @returns {Promise}
+   */
+
+  async checkKeyFilter(ring, filter) {
+    ;
+  }
+
   /**
    * Esimate smart fee.
    * @param {Number?} blocks