feat: add simple substitute deploy script

task/substitute.ts

@@ -2,6 +2,7 @@ import { task } from 'hardhat/config'
 import { AAVE_V3_POOL, OWNER, SINGLETON_FACTORY, TOKEN_KEYS, TOKENS, TREASURY, verify } from '../utils'
 import { hardhat } from 'viem/chains'
 import AaveTokenSubstitute from '../artifacts/contracts/AaveTokenSubstitute.sol/AaveTokenSubstitute.json'
+import SimpleTokenSubstitute from '../artifacts/contracts/SimpleTokenSubstitute.sol/SimpleTokenSubstitute.json'
 import { encodeDeployData, Hex, getCreate2Address } from 'viem'
 
 task('substitute:aave:deploy')
@@ -39,6 +40,34 @@ task('substitute:aave:deploy')
     await verify(computedAddress, constructorArgs)
   })
 
+task('substitute:simple:deploy')
+  .addParam('asset', 'name of the asset')
+  .setAction(async ({ asset }, hre) => {
+    const singletonFactory = await hre.viem.getContractAt('ISingletonFactory', SINGLETON_FACTORY)
+    const chainId = hre.network.config.chainId ?? hardhat.id
+    const emptySimpleSubstitute = await hre.viem.getContractAt('SimpleTokenSubstitute', '0x')
+    const treasury = TREASURY[chainId]
+    if (!treasury) {
+      throw new Error('missing treasury')
+    }
+    const constructorArgs = [TOKENS[chainId][TOKEN_KEYS.WETH], TOKENS[chainId][asset], treasury, OWNER[chainId]]
+    const deployData = encodeDeployData({
+      abi: emptySimpleSubstitute.abi,
+      args: [TOKENS[chainId][TOKEN_KEYS.WETH], TOKENS[chainId][asset], treasury, OWNER[chainId]],
+      bytecode: SimpleTokenSubstitute.bytecode as Hex,
+    })
+    const computedAddress = getCreate2Address({ from: singletonFactory.address, bytecode: deployData, salt: '0x' })
+    const client = await hre.viem.getPublicClient()
+    const remoteBytecode = await client.getBytecode({ address: computedAddress })
+    if (remoteBytecode && remoteBytecode !== '0x') {
+      console.log(`${asset} Substitute Contract already deployed:`, computedAddress)
+    } else {
+      const transactionHash = await singletonFactory.write.deploy([deployData, '0x'])
+      console.log(`Deployed ${asset} SimpleTokenSubstitute(${computedAddress}) at tx`, transactionHash)
+    }
+    await verify(computedAddress, constructorArgs)
+  })
+
 task('substitute:set-treasury')
   .addParam('address', 'address of the substitute')
   .setAction(async ({ address }, hre) => {