From 56f0b7ec35011420934d9076f19d4e536de8c978 Mon Sep 17 00:00:00 2001
From: Eliyahu Gusovsky <eliyahud@gmail.com>
Date: Thu, 16 Nov 2023 08:23:37 +0200
Subject: [PATCH] SpritzBridgeReceiver

---
 contracts/utility/SpritzBridgeReceiver.sol | 67 ++++++++++++++++++++++
 src/abi/SpritzBridgeReceiver.json          | 19 ++++++
 tasks/deploy/index.ts                      |  1 +
 tasks/deploy/spritzBridgeReceiver.ts       | 19 ++++++
 4 files changed, 106 insertions(+)
 create mode 100644 contracts/utility/SpritzBridgeReceiver.sol
 create mode 100644 src/abi/SpritzBridgeReceiver.json
 create mode 100644 tasks/deploy/spritzBridgeReceiver.ts

diff --git a/contracts/utility/SpritzBridgeReceiver.sol b/contracts/utility/SpritzBridgeReceiver.sol
new file mode 100644
index 0000000..679f546
--- /dev/null
+++ b/contracts/utility/SpritzBridgeReceiver.sol
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: UNLICENSED
+
+pragma solidity ^0.8.7;
+
+import "@openzeppelin/contracts/access/AccessControlEnumerable.sol";
+import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
+
+/**
+ * @title SpritzBridgeReceiver
+ * @author Spritz Finance
+ * @notice A utility contract for handling bridged funds
+ */
+contract SpritzBridgeReceiver is AccessControlEnumerable {
+    using SafeERC20 for IERC20;
+
+    // @dev Bot which has permission to call the bridge function
+    bytes32 public constant BRIDGE_ROLE = keccak256("BRIDGE_ROLE");
+
+    // @dev Address of paraswap
+    address internal _target = 0xDEF171Fe48CF0115B1d80b88dc8eAB59176FEe57;
+    // @dev Address of paraswap allowance target
+    address internal _allowanceTarget = 0x216B4B4Ba9F3e719726886d34a177484278Bfcae;
+    // @dev Circle receiving address
+    address internal _circleReceiving = 0xb0E2D41a14494717f42Ffc6327F9D250b0ad32a8;
+
+    constructor(address bridgeRole) {
+        _setupRole(DEFAULT_ADMIN_ROLE, msg.sender);
+        _setupRole(BRIDGE_ROLE, msg.sender);
+        _setupRole(BRIDGE_ROLE, bridgeRole);
+    }
+
+    /**
+     * @dev Bridge deposited tokens via Jumper
+     * @param fromToken Token to swap
+     * @param amount How much to swap
+     * @param toToken Target token
+     * @param swapData Data for paraswap call
+     */
+    function swapToken(
+        address fromToken,
+        uint amount,
+        address toToken,
+        bytes calldata swapData
+    ) external payable onlyRole(BRIDGE_ROLE) {
+        require(amount <= IERC20(fromToken).balanceOf(address(this)), "Amount exceeds balance");
+        IERC20(fromToken).safeApprove(_allowanceTarget, amount);
+        _target.call{ value: msg.value }(swapData);
+        IERC20(toToken).transfer(_circleReceiving, IERC20(toToken).balanceOf(address(this)));
+    }
+
+    /**
+     * @dev Withdraw deposited tokens to the given address
+     * @param token Token to withdraw
+     * @param to Target address
+     */
+    function sweep(IERC20 token, address to) external onlyRole(BRIDGE_ROLE) {
+        token.transfer(to, token.balanceOf(address(this)));
+    }
+
+    /**
+     * @dev Withdraw ETH to the given address
+     * @param to Target address
+     */
+    function nativeSweep(address to) external onlyRole(BRIDGE_ROLE) {
+        to.call{ value: address(this).balance }("");
+    }
+}
diff --git a/src/abi/SpritzBridgeReceiver.json b/src/abi/SpritzBridgeReceiver.json
new file mode 100644
index 0000000..0ff881f
--- /dev/null
+++ b/src/abi/SpritzBridgeReceiver.json
@@ -0,0 +1,19 @@
+[
+  "constructor(address)",
+  "event RoleAdminChanged(bytes32 indexed,bytes32 indexed,bytes32 indexed)",
+  "event RoleGranted(bytes32 indexed,address indexed,address indexed)",
+  "event RoleRevoked(bytes32 indexed,address indexed,address indexed)",
+  "function BRIDGE_ROLE() view returns (bytes32)",
+  "function DEFAULT_ADMIN_ROLE() view returns (bytes32)",
+  "function getRoleAdmin(bytes32) view returns (bytes32)",
+  "function getRoleMember(bytes32,uint256) view returns (address)",
+  "function getRoleMemberCount(bytes32) view returns (uint256)",
+  "function grantRole(bytes32,address)",
+  "function hasRole(bytes32,address) view returns (bool)",
+  "function nativeSweep(address)",
+  "function renounceRole(bytes32,address)",
+  "function revokeRole(bytes32,address)",
+  "function supportsInterface(bytes4) view returns (bool)",
+  "function swapToken(address,uint256,address,bytes) payable",
+  "function sweep(address,address)"
+]
diff --git a/tasks/deploy/index.ts b/tasks/deploy/index.ts
index 4866360..8e95f0c 100644
--- a/tasks/deploy/index.ts
+++ b/tasks/deploy/index.ts
@@ -1,6 +1,7 @@
 import "./protocol/contractFactory";
 import "./smartPay";
 import "./spritzBridge";
+import "./spritzBridgeReceiver";
 import "./spritzBridgeV2";
 import "./spritzPay";
 import "./spritzPayV2";
diff --git a/tasks/deploy/spritzBridgeReceiver.ts b/tasks/deploy/spritzBridgeReceiver.ts
new file mode 100644
index 0000000..107e017
--- /dev/null
+++ b/tasks/deploy/spritzBridgeReceiver.ts
@@ -0,0 +1,19 @@
+/* eslint-disable @typescript-eslint/no-explicit-any */
+import { task } from "hardhat/config";
+import type { TaskArguments } from "hardhat/types";
+
+const BRIDGE_BOT = "0xAAAF0666A916bdf97710A8E44e42BA250490e5b8";
+
+task("deploy:SpritzBridgeReceiver").setAction(async function (_taskArguments: TaskArguments, hre) {
+  const bridgeFactory = await hre.ethers.getContractFactory("SpritzBridgeReceiver");
+  console.log("Deploying");
+  const args: [string] = [BRIDGE_BOT];
+  const bridge = await bridgeFactory.deploy(...args);
+  await bridge.deployTransaction.wait(10);
+  console.log(`Deployed to ${bridge.address} with tx: ${bridge.deployTransaction.hash}`);
+  await hre.run(`verify:verify`, {
+    address: bridge.address,
+    contract: "contracts/utility/SpritzBridgeReceiver.sol:SpritzBridgeReceiver",
+    constructorArguments: args,
+  });
+});