add delete scripts

contracts/scripts/deleteDscKeyCommitment.ts

@@ -0,0 +1,124 @@
+/**
+ * DSC Key Commitment Deletion Script
+ *
+ * This script is designed to delete all DSC key commitments from the registry contract.
+ *
+ * The process works as follows:
+ * 1. Reads the serialized DSC tree data from JSON
+ * 2. Initializes a LeanIMT (Lean Incremental Merkle Tree) instance with the same data
+ * 3. For each commitment in the tree:
+ *    a. Generates a Merkle proof (sibling nodes) needed for the deletion
+ *    b. Calls the contract's devRemoveDscKeyCommitment method
+ *    c. Updates the local tree to maintain consistency with the contract
+ *
+ * The script ensures the local tree stays in sync with the contract by updating
+ * each leaf to zero after successfully removing it from the contract.
+ *
+ * Requirements:
+ * - A properly configured .env file with RPC_URL and PRIVATE_KEY
+ * - Access to the serialized DSC tree data in the specified path
+ * - Owner permissions on the registry contract
+ */
+
+import { LeanIMT } from "@openpassport/zk-kit-lean-imt";
+import * as dotenv from "dotenv";
+import { ethers } from "ethers";
+import * as fs from "fs";
+import * as path from "path";
+import { poseidon2 } from "poseidon-lite";
+
+dotenv.config();
+
+// Read the serialized DSC tree data
+const serializedDscTreePath = path.join(__dirname, "../../registry/outputs/serialized_dsc_tree.json");
+const serialized_dsc_tree_json = fs.readFileSync(serializedDscTreePath, "utf-8");
+const serialized_dsc_tree = JSON.parse(JSON.parse(serialized_dsc_tree_json));
+
+// Create DSC key commitment tree from the serialized data
+const hashFunction = (a: bigint, b: bigint) => poseidon2([a, b]);
+// Initialize LeanIMT with the hash function
+const dscTree = new LeanIMT<bigint>(hashFunction);
+
+// Function to initialize the tree with all commitments
+function initializeTree() {
+    console.log("Initializing DSC tree...");
+    // The first array in serialized_dsc_tree[0] contains the leaf nodes
+    for (let i = 0; i < serialized_dsc_tree[0].length; i++) {
+        dscTree.insert(BigInt(serialized_dsc_tree[0][i]));
+    }
+    console.log(`Initialized DSC tree with ${dscTree.size} commitments. Root: ${dscTree.root}`);
+}
+
+async function main() {
+    try {
+        // Set up connection to blockchain
+        const provider = new ethers.JsonRpcProvider(process.env.RPC_URL as string);
+        const wallet = new ethers.Wallet(process.env.PRIVATE_KEY as string, provider);
+
+        // Load the registry contract
+        const registryAbiFile = fs.readFileSync(path.join(__dirname, "../ignition/deployments/chain-11155111/artifacts/DeployRegistryModule#IdentityRegistryImplV1.json"), "utf-8");
+        const registryAbi = JSON.parse(registryAbiFile).abi;
+        const registryAddress = "0xD961B67B35739cCF16326B087C9aD2c0095cCc4E"; // Update with your contract address
+        const registry = new ethers.Contract(registryAddress, registryAbi, wallet);
+
+        // Initialize our tree with all the DSC key commitments
+        initializeTree();
+
+        // Get all commitments to delete
+        const commitments = serialized_dsc_tree[0];
+        console.log(`Total commitments to delete: ${commitments.length}`);
+
+        // Delete each commitment one by one
+        for (let i = 0; i < commitments.length; i++) {
+            try {
+                const commitment = BigInt(commitments[i]);
+                console.log(`Processing commitment ${i+1}/${commitments.length}: ${commitment.toString()}`);
+
+                // Find the index of the commitment in the tree
+                const index = dscTree.indexOf(commitment);
+                if (index === -1) {
+                    console.warn(`Commitment ${commitment.toString()} not found in the tree, skipping...`);
+                    continue;
+                }
+
+                // Generate the proof for the current commitment
+                const { siblings } = dscTree.generateProof(index);
+
+                // Convert siblings to string array for contract call
+                const siblingNodes = siblings.map(s => s.toString());
+
+                // Call the contract to remove the commitment
+                console.log(`Removing commitment from contract...`);
+                const tx = await registry.devRemoveDscKeyCommitment(
+                    commitment.toString(),
+                    siblingNodes
+                );
+
+                console.log(`Transaction sent. Waiting for confirmation...`);
+                const receipt = await tx.wait();
+                console.log(`Transaction confirmed! Hash: ${receipt.hash}`);
+
+                // Update the commitment in our local tree to keep it in sync with the contract
+                // According to documentation, update takes index and new value
+                dscTree.update(index, BigInt(0));  // Update to zero, effectively "removing" it
+                console.log(`Removed commitment ${i+1}. New tree root: ${dscTree.root}`);
+
+                // Small delay to avoid spamming the network
+                await new Promise(resolve => setTimeout(resolve, 1000));
+            } catch (error) {
+                console.error(`Error processing commitment ${i+1}:`, error);
+                // Continue with the next commitment
+            }
+        }
+
+        console.log("All DSC key commitments have been removed.");
+    } catch (error) {
+        console.error("Error in main function:", error);
+        process.exitCode = 1;
+    }
+}
+
+main().catch((error) => {
+    console.error(error);
+    process.exitCode = 1;
+});