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lib/services/blockchain.service.ts

@@ -23,7 +23,11 @@
 
 import { ethers } from "ethers";
 import { createHash } from "crypto";
-import type { BlockchainProof, BlockchainVerification, BlockchainStats } from "./blockchain.types";
+import type {
+  BlockchainProof,
+  BlockchainVerification,
+  BlockchainStats,
+} from "./blockchain.types";
 
 // ─────────────────────────────────────────────────
 // Smart Contract ABI (Application Binary Interface)
@@ -102,7 +106,7 @@ function getReadContract(): ethers.Contract {
     _readContract = new ethers.Contract(
       contractAddress,
       DOCUMENT_REGISTRY_ABI,
-      getProvider()
+      getProvider(),
     );
   }
   return _readContract;
@@ -117,7 +121,7 @@ function getWriteContract(): ethers.Contract {
     _writeContract = new ethers.Contract(
       contractAddress,
       DOCUMENT_REGISTRY_ABI,
-      getWallet()
+      getWallet(),
     );
   }
   return _writeContract;
@@ -214,7 +218,7 @@ export class BlockchainService {
    */
   static async registerOnChain(
     documentHash: string,
-    fileName: string
+    fileName: string,
   ): Promise<BlockchainProof> {
     if (!this.isConfigured()) {
       throw new Error("Blockchain not configured. Check your .env variables.");
@@ -307,7 +311,7 @@ export class BlockchainService {
    * @returns Verification result with existence, timestamp, depositor
    */
   static async verifyOnChain(
-    documentHash: string
+    documentHash: string,
   ): Promise<BlockchainVerification> {
     if (!this.isReadConfigured()) {
       throw new Error("Blockchain read access not configured");
@@ -331,7 +335,7 @@ export class BlockchainService {
    */
   static async hashAndRegister(
     fileUrl: string,
-    fileName: string
+    fileName: string,
   ): Promise<BlockchainProof> {
     const documentHash = await this.hashDocument(fileUrl);
     return await this.registerOnChain(documentHash, fileName);
@@ -368,13 +372,14 @@ export class BlockchainService {
       const [blockNumber, totalDocs, networkObj] = await Promise.all([
         provider.getBlockNumber(),
         contract.totalDocuments(),
-        provider.getNetwork()
+        provider.getNetwork(),
       ]);
 
       return {
         totalVerified: Number(totalDocs),
         latestBlockNumber: blockNumber,
-        networkName: config.network === "sepolia" ? "Ethereum Sepolia" : "Hardhat Local",
+        networkName:
+          config.network === "sepolia" ? "Ethereum Sepolia" : "Hardhat Local",
         networkStatus: "connected",
         walletAddress,
         chainId: Number(networkObj.chainId),
@@ -384,7 +389,8 @@ export class BlockchainService {
       return {
         totalVerified: 0,
         latestBlockNumber: null,
-        networkName: config.network === "sepolia" ? "Ethereum Sepolia" : "Hardhat Local",
+        networkName:
+          config.network === "sepolia" ? "Ethereum Sepolia" : "Hardhat Local",
         networkStatus: "disconnected",
         walletAddress: "",
       };