From e7ef53e27cb906d7128a3e512e7082e4176786e4 Mon Sep 17 00:00:00 2001
From: David <104078303+davidtaikocha@users.noreply.github.com>
Date: Sat, 10 Dec 2022 12:10:41 +0800
Subject: [PATCH] feat(deployment): fund L1 bridge (#400)

* feat(deployment): fund L1 bridge

* doc: update comments

* test: update test config

Co-authored-by: Daniel Wang <99078276+dantaik@users.noreply.github.com>
---
 packages/protocol/package.json                |  4 +-
 packages/protocol/tasks/deploy_L1.ts          | 41 +++++++++++++++++++
 .../protocol/test/genesis/test_config.json    |  5 ++-
 3 files changed, 46 insertions(+), 4 deletions(-)

diff --git a/packages/protocol/package.json b/packages/protocol/package.json
index a13293c7b25..27908cf82d6 100644
--- a/packages/protocol/package.json
+++ b/packages/protocol/package.json
@@ -16,7 +16,7 @@
     "generate:genesis": "ts-node ./utils/generate_genesis/main.ts",
     "test:genesis": "./test/genesis/generate_genesis.test.sh",
     "test:integration": "./test/test_integration.sh",
-    "deploy:hardhat": "LOG_LEVEL=debug pnpm hardhat deploy_L1 --network hardhat --dao-vault 0xdf08f82de32b8d460adbe8d72043e3a7e25a3b39 --team-vault 0xdf08f82de32b8d460adbe8d72043e3a7e25a3b39 --l2-genesis-block-hash 0xee1950562d42f0da28bd4550d88886bc90894c77c9c9eaefef775d4c8223f259 --confirmations 1",
+    "deploy:hardhat": "LOG_LEVEL=debug pnpm hardhat deploy_L1 --network hardhat --dao-vault 0xdf08f82de32b8d460adbe8d72043e3a7e25a3b39 --team-vault 0xdf08f82de32b8d460adbe8d72043e3a7e25a3b39 --l2-genesis-block-hash 0xee1950562d42f0da28bd4550d88886bc90894c77c9c9eaefef775d4c8223f259 --bridge-funder-private-key ddbf12f72c946bb1e6de5eaf580c51db51828ba198d9b0dba9c7d48ec748dc04 --bridge-fund 0xff --confirmations 1",
     "lint-staged": "lint-staged --allow-empty"
   },
   "lint-staged": {
@@ -81,4 +81,4 @@
     "@openzeppelin/contracts": "^4.5.0",
     "@openzeppelin/contracts-upgradeable": "^4.5.1"
   }
-}
+}
\ No newline at end of file
diff --git a/packages/protocol/tasks/deploy_L1.ts b/packages/protocol/tasks/deploy_L1.ts
index 5dfdb613381..0cd99308fb8 100644
--- a/packages/protocol/tasks/deploy_L1.ts
+++ b/packages/protocol/tasks/deploy_L1.ts
@@ -19,6 +19,18 @@ task("deploy_L1")
         ethers.constants.HashZero
     )
     .addOptionalParam("l2ChainId", "L2 chain id", config.K_CHAIN_ID, types.int)
+    .addOptionalParam(
+        "bridgeFunderPrivateKey",
+        "Private key of the L1 bridge funder",
+        "",
+        types.string
+    )
+    .addOptionalParam(
+        "bridgeFund",
+        "L1 bridge's initial fund in hex",
+        "",
+        types.string
+    )
     .addOptionalParam(
         "confirmations",
         "Number of confirmations to wait for deploy transaction.",
@@ -51,6 +63,8 @@ export async function deployContracts(hre: any) {
     const l2GenesisBlockHash = hre.args.l2GenesisBlockHash
     const taikoL2Address = hre.args.taikoL2
     const l2ChainId = hre.args.l2ChainId
+    const bridgeFunderPrivateKey = hre.args.bridgeFunderPrivateKey
+    const bridgeFund = hre.args.bridgeFund
 
     log.debug(`network: ${network}`)
     log.debug(`chainId: ${chainId}`)
@@ -59,6 +73,8 @@ export async function deployContracts(hre: any) {
     log.debug(`l2GenesisBlockHash: ${l2GenesisBlockHash}`)
     log.debug(`taikoL2Address: ${taikoL2Address}`)
     log.debug(`l2ChainId: ${l2ChainId}`)
+    log.debug(`bridgeFunderPrivateKey: ${bridgeFunderPrivateKey}`)
+    log.debug(`bridgeFund: ${bridgeFund}`)
     log.debug(`confirmations: ${hre.args.confirmations}`)
     log.debug()
 
@@ -131,6 +147,31 @@ export async function deployContracts(hre: any) {
         await AddressManager.setAddress(`${chainId}.bridge`, Bridge.address)
     )
 
+    // Fund L1 bridge, which is necessary when there is a L2 faucet
+    if (
+        bridgeFunderPrivateKey.length &&
+        hre.ethers.utils.isHexString(bridgeFund)
+    ) {
+        const funder = new hre.ethers.Wallet(
+            bridgeFunderPrivateKey,
+            hre.ethers.provider
+        )
+
+        await utils.waitTx(
+            hre,
+            await funder.sendTransaction({
+                to: Bridge.address,
+                value: hre.ethers.BigNumber.from(bridgeFund),
+            })
+        )
+
+        log.debug(
+            `L1 bridge balance: ${hre.ethers.utils.hexlify(
+                await hre.ethers.provider.getBalance(Bridge.address)
+            )}`
+        )
+    }
+
     // save deployments
     const deployments = {
         network,
diff --git a/packages/protocol/test/genesis/test_config.json b/packages/protocol/test/genesis/test_config.json
index 36ec33239d9..9f54e7ffb90 100644
--- a/packages/protocol/test/genesis/test_config.json
+++ b/packages/protocol/test/genesis/test_config.json
@@ -80,7 +80,8 @@
     "TokenVault": "0x0000777700000000000000000000000000000002",
     "EtherVault": "0x0000777700000000000000000000000000000003",
     "Bridge": "0x0000777700000000000000000000000000000004",
-    "TestERC20": "0x0000777700000000000000000000000000000005"
+    "TestERC20": "0x0000777700000000000000000000000000000005",
+    "AddressManager": "0x0000777700000000000000000000000000000006"
   },
   "predeployERC20": true
-}
+}
\ No newline at end of file