From aadde895470d5e3ebc83e4525255ee9d06817f59 Mon Sep 17 00:00:00 2001
From: James Earle <j_earle@hotmail.com>
Date: Thu, 21 Aug 2025 13:32:01 -0700
Subject: [PATCH] initial z airdrop script using EOA

---
 src/utils/migration/04_airdrop.ts | 64 +++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 src/utils/migration/04_airdrop.ts

diff --git a/src/utils/migration/04_airdrop.ts b/src/utils/migration/04_airdrop.ts
new file mode 100644
index 00000000..300f07a5
--- /dev/null
+++ b/src/utils/migration/04_airdrop.ts
@@ -0,0 +1,64 @@
+// Z Airdrop to users on z chain so they can transfer from their self-custody wallet to zwallets
+import * as hre from "hardhat";
+import { getLogger } from "../../deploy/logger/create-logger";
+import { getDomains } from "./subgraph";
+import { Domain } from "./types";
+
+const logger = getLogger();
+
+// TODO we need to decide on how we allow users to migrate their domains
+// This script may not be used, but we will keep it as a backup in case.
+// We may modify it to take advantage of using a Safe and the CSV Airdrop tool too.
+const main = async () => {
+  const [ admin ] = await hre.ethers.getSigners();
+
+  const roots = await getDomains(true) as Array<Domain>;
+  const subs = await getDomains(false) as Array<Domain>;
+
+  const userToGasOwed = new Map<string, bigint>();
+  const gasPerDomain = hre.ethers.parseEther("0.002");
+
+  // Track total needed for funding this wallet
+  let totalNeeded = 0n;
+
+  // Calculate how much gas each user needs based on the number
+  // of domains they have
+  for (const d of [...roots, ...subs]) {
+    const gasTotal = userToGasOwed.get(d.owner.id);
+
+    if (gasTotal && !d.isRevoked) {
+      userToGasOwed.set(d.owner.id, gasTotal + BigInt(gasPerDomain));
+    } else {
+      userToGasOwed.set(d.owner.id, BigInt(gasPerDomain));
+    }
+
+    totalNeeded += gasPerDomain;
+  }
+
+  // Also add amount of gas needed to actually pay for the transfers
+  totalNeeded += 21000n * BigInt(userToGasOwed.size);
+
+  logger.info(`Total needed for funding: ${totalNeeded}`);
+
+  // Transfer native token for `amount` that user needs
+  for (const userGas of userToGasOwed) {
+    const tx = await admin.sendTransaction({
+      to: userGas[0],
+      value: userGas[1],
+      gasLimit: 21000,
+    });
+
+    const receipt = await tx.wait(hre.network.name === "hardhat" ? 0 : 3);
+
+    logger.log(`\nTransfer sent to user ${userGas[0]} for amount ${userGas[1]}`);
+    logger.log(`Transaction Hash: ${receipt?.hash}\n`);
+  }
+
+};
+
+main().catch(error => {
+  logger.error("Migration script failed:", error);
+  process.exitCode = 1;
+}).finally(() => {
+  process.exit(0);
+});
\ No newline at end of file