Blockchain added
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315
features/blockchain/api/blockchain.action.ts
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315
features/blockchain/api/blockchain.action.ts
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/**
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* Blockchain Server Actions
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*
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* Server-side functions for blockchain operations:
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* - Register a contract document on the blockchain
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* - Verify a contract's on-chain proof
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* - Get all blockchain transactions for the user
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* - Get blockchain network stats
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*
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* These actions are called from the frontend via React Server Actions.
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* All blockchain logic runs server-side (no MetaMask needed).
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*/
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"use server";
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import { auth } from "@clerk/nextjs/server";
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import { revalidatePath } from "next/cache";
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import { prisma } from "@/lib/db/prisma";
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import { BlockchainService } from "@/lib/services/blockchain.service";
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import { NotificationService } from "@/lib/services/notification.service";
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import { ContractService } from "@/lib/services/contract.service";
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import type { BlockchainTransactionView, BlockchainStats } from "@/lib/services/blockchain.types";
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/**
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* Register a contract's document on the blockchain.
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*
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* FLOW:
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* 1. Authenticate user
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* 2. Fetch contract from DB
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* 3. Download PDF and compute SHA-256 hash
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* 4. Send hash to the smart contract on-chain
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* 5. Store proof data (txHash, blockNumber, etc.) in PostgreSQL
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* 6. Create a BlockchainTransaction record for the explorer
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* 7. Create a notification for the user
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*
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* @param contractId - The contract ID to register
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*/
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export async function registerContractOnBlockchain(contractId: string) {
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try {
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const { userId: clerkId } = await auth();
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if (!clerkId) return { success: false, error: "Unauthorized" };
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// Check if blockchain is configured
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if (!BlockchainService.isConfigured()) {
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return {
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success: false,
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error: "Blockchain not configured. Start a Hardhat node and check your .env.",
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};
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}
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// Get internal user
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const user = await ContractService.getUserByClerkId(clerkId);
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if (!user) return { success: false, error: "User not found" };
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// Get the contract
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const contract = await ContractService.getById(contractId);
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if (contract.userId !== user.id) {
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return { success: false, error: "Unauthorized" };
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}
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// Check if already registered
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if (contract.txHash && contract.txHash !== "already-registered") {
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return {
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success: true,
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message: "Contract already registered on blockchain",
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proof: {
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documentHash: contract.documentHash,
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txHash: contract.txHash,
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blockNumber: contract.blockNumber,
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},
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};
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}
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// Hash the document and register on-chain
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const proof = await BlockchainService.hashAndRegister(
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contract.fileUrl,
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contract.fileName
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);
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// Save proof data to the Contract record
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await prisma.contract.update({
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where: { id: contractId },
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data: {
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documentHash: proof.documentHash,
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txHash: proof.txHash,
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blockNumber: proof.blockNumber,
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blockTimestamp: proof.blockTimestamp,
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blockchainNetwork: proof.network,
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contractAddress: proof.contractAddress,
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},
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});
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// Create a BlockchainTransaction record for the explorer
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await prisma.blockchainTransaction.create({
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data: {
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userId: user.id,
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contractId,
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documentHash: proof.documentHash,
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txHash: proof.txHash,
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blockNumber: proof.blockNumber,
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blockTimestamp: proof.blockTimestamp,
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network: proof.network,
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contractAddress: proof.contractAddress,
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status: "CONFIRMED",
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},
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});
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// Create success notification
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await NotificationService.create({
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userId: user.id,
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type: "SUCCESS",
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title: "🔗 Blockchain Verified",
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message: `"${contract.title || contract.fileName}" has been registered on-chain. Tx: ${proof.txHash.slice(0, 16)}...`,
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contractId,
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actionType: "BLOCKCHAIN_REGISTERED",
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icon: "Link2",
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expiresIn: 14 * 24 * 60 * 60 * 1000, // 14 days
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});
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revalidatePath("/contacts");
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revalidatePath("/dashboard");
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revalidatePath("/blockchain");
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return {
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success: true,
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message: "Document registered on blockchain!",
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proof: {
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documentHash: proof.documentHash,
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txHash: proof.txHash,
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blockNumber: proof.blockNumber,
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blockTimestamp: proof.blockTimestamp.toISOString(),
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network: proof.network,
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explorerUrl: proof.explorerUrl,
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},
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};
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} catch (error: unknown) {
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console.error("❌ Blockchain registration error:", error);
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return {
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success: false,
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error: error instanceof Error ? error.message : "Unknown blockchain error",
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};
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}
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}
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/**
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* Verify a contract's on-chain proof by checking the blockchain directly.
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*/
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export async function verifyContractOnBlockchain(contractId: string) {
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try {
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const { userId: clerkId } = await auth();
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if (!clerkId) return { success: false, error: "Unauthorized" };
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if (!BlockchainService.isReadConfigured()) {
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return { success: false, error: "Blockchain not configured for verification" };
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}
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const user = await ContractService.getUserByClerkId(clerkId);
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if (!user) return { success: false, error: "User not found" };
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const contract = await ContractService.getById(contractId);
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if (contract.userId !== user.id) return { success: false, error: "Unauthorized" };
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if (!contract.documentHash) {
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return {
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success: true,
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verification: { exists: false, timestamp: 0, depositor: "" },
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};
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}
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const verification = await BlockchainService.verifyOnChain(contract.documentHash);
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return {
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success: true,
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verification: {
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exists: verification.exists,
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timestamp: verification.timestamp,
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depositor: verification.depositor,
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documentHash: contract.documentHash,
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txHash: contract.txHash,
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blockNumber: contract.blockNumber,
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network: contract.blockchainNetwork,
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},
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};
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} catch (error: unknown) {
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console.error("❌ Blockchain verification error:", error);
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return {
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success: false,
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error: error instanceof Error ? error.message : "Unknown error",
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};
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}
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}
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/**
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* Verify a raw document hash on-chain (for the verification panel).
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*/
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export async function verifyDocumentHashOnBlockchain(documentHash: string) {
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try {
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const { userId: clerkId } = await auth();
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if (!clerkId) return { success: false, error: "Unauthorized" };
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if (!BlockchainService.isReadConfigured()) {
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return { success: false, error: "Blockchain not configured for verification" };
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}
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// Ensure proper format
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const rawHash = documentHash.trim();
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const hash = rawHash.startsWith("0x") ? rawHash : `0x${rawHash}`;
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if (!/^0x[a-fA-F0-9]{64}$/.test(hash)) {
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return {
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success: false,
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error: "Invalid hash format. Expected a 32-byte SHA-256 hex string.",
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};
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}
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const verification = await BlockchainService.verifyOnChain(hash);
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return {
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success: true,
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verification: {
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exists: verification.exists,
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timestamp: verification.timestamp,
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depositor: verification.depositor,
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},
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};
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} catch (error: unknown) {
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console.error("❌ Hash verification error:", error);
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return {
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success: false,
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error: error instanceof Error ? error.message : "Unknown error",
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};
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}
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}
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/**
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* Get all blockchain transactions for the authenticated user.
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* Used by the blockchain explorer page.
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*/
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export async function getBlockchainTransactions(): Promise<{
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success: boolean;
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transactions?: BlockchainTransactionView[];
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error?: string;
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}> {
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try {
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const { userId: clerkId } = await auth();
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if (!clerkId) return { success: false, error: "Unauthorized" };
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const user = await ContractService.getUserByClerkId(clerkId);
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if (!user) return { success: false, error: "User not found" };
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const txs = await prisma.blockchainTransaction.findMany({
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where: { userId: user.id },
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orderBy: { createdAt: "desc" },
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include: {
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contract: {
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select: {
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id: true,
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title: true,
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fileName: true,
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},
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},
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},
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});
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const transactions: BlockchainTransactionView[] = txs.map((tx) => ({
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id: tx.id,
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contractId: tx.contractId,
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contractTitle: tx.contract.title,
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contractFileName: tx.contract.fileName,
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documentHash: tx.documentHash,
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txHash: tx.txHash,
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blockNumber: tx.blockNumber,
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blockTimestamp: tx.blockTimestamp.toISOString(),
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network: tx.network,
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contractAddress: tx.contractAddress,
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status: tx.status,
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createdAt: tx.createdAt.toISOString(),
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explorerUrl:
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tx.network === "sepolia"
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? `https://sepolia.etherscan.io/tx/${tx.txHash}`
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: null,
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}));
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return { success: true, transactions };
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} catch (error: unknown) {
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console.error("❌ Get transactions error:", error);
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return {
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success: false,
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error: error instanceof Error ? error.message : "Unknown error",
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};
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}
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}
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/**
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* Get blockchain network stats for the explorer page header.
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*/
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export async function getBlockchainStats(): Promise<{
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success: boolean;
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stats?: BlockchainStats;
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error?: string;
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}> {
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try {
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const { userId: clerkId } = await auth();
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if (!clerkId) return { success: false, error: "Unauthorized" };
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const stats = await BlockchainService.getNetworkStats();
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return { success: true, stats };
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} catch (error: unknown) {
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console.error("❌ Blockchain stats error:", error);
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return {
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success: false,
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error: error instanceof Error ? error.message : "Unknown error",
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};
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}
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}
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