From 4a8cb065786d647b287767d629726902cf41d308 Mon Sep 17 00:00:00 2001
From: Sanka Darshana <sankadarshana@gmail.com>
Date: Fri, 4 Aug 2023 20:30:04 +0530
Subject: [PATCH] wasm bug fixing

---
 lib/blockchain.ts |  6 +++++-
 lib/wallet.ts     |  4 ++++
 package-lock.json | 18 +++++++++---------
 package.json      |  4 ++--
 4 files changed, 20 insertions(+), 12 deletions(-)

diff --git a/lib/blockchain.ts b/lib/blockchain.ts
index af5923b..78d1cca 100644
--- a/lib/blockchain.ts
+++ b/lib/blockchain.ts
@@ -3,6 +3,7 @@ import WasmWrapper from "./wasm_wrapper";
 import Saito from "../saito";
 import Block from "./block";
 import Transaction from "./transaction";
+import { DefaultEmptyBlockHash } from "./wallet";
 
 export default class Blockchain extends WasmWrapper<WasmBlockchain> {
   public static Type: any;
@@ -24,6 +25,9 @@ export default class Blockchain extends WasmWrapper<WasmBlockchain> {
   public async affixCallbacks(block: Block) {}
 
   public async runCallbacks(block_hash: string, from_blocks_back: bigint) {
+    if (block_hash === DefaultEmptyBlockHash) {
+      return;
+    }
     let block = await Saito.getInstance().getBlock(block_hash);
     let callbacks = this.callbacks.get(block_hash);
     let callbackIndices = this.callbackIndices.get(block_hash);
@@ -93,7 +97,7 @@ export default class Blockchain extends WasmWrapper<WasmBlockchain> {
 
             if (run_callbacks) {
               let callback_block_hash = await this.instance.get_longest_chain_hash_at(i);
-              if (callback_block_hash !== "") {
+              if (callback_block_hash !== "" && callback_block_hash !== DefaultEmptyBlockHash) {
                 await this.runCallbacks(callback_block_hash, confirmation_count);
               }
             }
diff --git a/lib/wallet.ts b/lib/wallet.ts
index 8b9a390..2cc8682 100644
--- a/lib/wallet.ts
+++ b/lib/wallet.ts
@@ -5,9 +5,13 @@ import { fromBase58, toBase58 } from "./util";
 
 export const DefaultEmptyPrivateKey =
   "0000000000000000000000000000000000000000000000000000000000000000";
+
 export const DefaultEmptyPublicKey =
   "000000000000000000000000000000000000000000000000000000000000000000";
 
+export const DefaultEmptyBlockHash =
+  "0000000000000000000000000000000000000000000000000000000000000000";
+
 export default class Wallet extends WasmWrapper<WasmWallet> {
   public static Type: any;
 
diff --git a/package-lock.json b/package-lock.json
index f2c3cc8..0c9799a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "saito-js",
-  "version": "0.0.36",
+  "version": "0.0.37",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "saito-js",
-      "version": "0.0.36",
+      "version": "0.0.37",
       "license": "ISC",
       "dependencies": {
         "base-58": "^0.0.1",
@@ -18,7 +18,7 @@
         "morgan": "~1.10.0",
         "node-fetch": "^2.6.1",
         "process": "^0.11.10",
-        "saito-wasm": "^0.0.24",
+        "saito-wasm": "^0.0.25",
         "url": "^0.11.0",
         "util": "^0.12.5",
         "ws": "^8.13.0"
@@ -4157,9 +4157,9 @@
       "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
     },
     "node_modules/saito-wasm": {
-      "version": "0.0.24",
-      "resolved": "https://registry.npmjs.org/saito-wasm/-/saito-wasm-0.0.24.tgz",
-      "integrity": "sha512-LoXu9Lo0nUlMi+WELLqbFOml+MOf09Eluzl8IHBKxmKi7kmQb6UKMxBjJUHISyL1lMvbW10jWvrk6HukZFQupA==",
+      "version": "0.0.25",
+      "resolved": "https://registry.npmjs.org/saito-wasm/-/saito-wasm-0.0.25.tgz",
+      "integrity": "sha512-nlc6nl5h0spYj4KA0TYSeg5a0prHxz3aClwLGOLGDOfep0i1W34sR+Ey1vIyTDQXK5W7M43UrNNVhQHRG7MNVA==",
       "dependencies": {
         "cross-env": "^7.0.3",
         "node-fetch": "^3.3.0"
@@ -8206,9 +8206,9 @@
       "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
     },
     "saito-wasm": {
-      "version": "0.0.24",
-      "resolved": "https://registry.npmjs.org/saito-wasm/-/saito-wasm-0.0.24.tgz",
-      "integrity": "sha512-LoXu9Lo0nUlMi+WELLqbFOml+MOf09Eluzl8IHBKxmKi7kmQb6UKMxBjJUHISyL1lMvbW10jWvrk6HukZFQupA==",
+      "version": "0.0.25",
+      "resolved": "https://registry.npmjs.org/saito-wasm/-/saito-wasm-0.0.25.tgz",
+      "integrity": "sha512-nlc6nl5h0spYj4KA0TYSeg5a0prHxz3aClwLGOLGDOfep0i1W34sR+Ey1vIyTDQXK5W7M43UrNNVhQHRG7MNVA==",
       "requires": {
         "cross-env": "^7.0.3",
         "node-fetch": "^3.3.0"
diff --git a/package.json b/package.json
index 83800a8..92342bc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "saito-js",
-  "version": "0.0.36",
+  "version": "0.0.37",
   "description": "js wrappings around saito-core using wasm",
   "scripts": {
     "test": "env TS_NODE_PROJECT=\"tsconfig.testing.json\" mocha --require ts-node/register 'tests/**/*.ts'",
@@ -36,7 +36,7 @@
     "morgan": "~1.10.0",
     "node-fetch": "^2.6.1",
     "process": "^0.11.10",
-    "saito-wasm": "^0.0.24",
+    "saito-wasm": "^0.0.25",
     "url": "^0.11.0",
     "util": "^0.12.5",
     "ws": "^8.13.0"