Add USDC and USDC as collaterals to WETH market on Arbitrum

deployments/arbitrum/weth/migrations/1722254281_add_usdt_and_usdc_as_collaterals.ts

@@ -0,0 +1,291 @@
+import { expect } from 'chai';
+import { DeploymentManager } from '../../../../plugins/deployment_manager/DeploymentManager';
+import { migration } from '../../../../plugins/deployment_manager/Migration';
+import { exp, proposal } from '../../../../src/deploy';
+import { applyL1ToL2Alias, estimateL2Transaction } from '../../../../scenario/utils/arbitrumUtils';
+import { ethers } from 'ethers';
+
+const USDT_ADDRESS = '0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9';
+const USDT_USD_PRICE_FEED_ADDRESS = '0x3f3f5dF88dC9F13eac63DF89EC16ef6e7E25DdE7';
+
+const USDC_ADDRESS = '0xaf88d065e77c8cC2239327C5EDb3A432268e5831';
+const USDC_USD_PRICE_FEED_ADDRESS = '0x50834F3163758fcC1Df9973b6e91f0F0F0434aD3';
+
+const ETH_USD_PRICE_FEED_ADDRESS = '0x639Fe6ab55C921f74e7fac1ee960C0B6293ba612';
+
+export default migration('1722254281_add_usdt_and_usdc_as_collaterals', {
+  async prepare(deploymentManager: DeploymentManager) {
+    const _usdtPriceFeed = await deploymentManager.deploy(
+      'USDT:priceFeed',
+      'pricefeeds/ReverseMultiplicativePriceFeed.sol',
+      [
+        USDT_USD_PRICE_FEED_ADDRESS,  // USDT / USD price feed
+        ETH_USD_PRICE_FEED_ADDRESS,   // USD / ETH price feed 
+        8,                            // decimals
+        'USDT / USD  USD / ETH',      // description
+      ]
+    );
+
+    const _usdcPriceFeed = await deploymentManager.deploy(
+      'USDC:priceFeed',
+      'pricefeeds/ReverseMultiplicativePriceFeed.sol',
+      [
+        USDC_USD_PRICE_FEED_ADDRESS,  // USDC / USD price feed
+        ETH_USD_PRICE_FEED_ADDRESS,   // USD / ETH price feed 
+        8,                            // decimals
+        'USDC / USD  USD / ETH',      // description
+      ]
+    );
+
+    return { usdtPriceFeed: _usdtPriceFeed.address, usdcPriceFeed: _usdcPriceFeed.address };
+  },
+
+  enact: async (deploymentManager: DeploymentManager, govDeploymentManager: DeploymentManager, { usdtPriceFeed, usdcPriceFeed }) => {
+    const trace = deploymentManager.tracer();
+    const {
+      bridgeReceiver,
+      timelock: l2Timelock,
+      comet,
+      cometAdmin,
+      configurator
+    } = await deploymentManager.getContracts();
+
+    const {
+      arbitrumInbox,
+      timelock,
+      governor
+    } = await govDeploymentManager.getContracts();
+
+    const USDT = await deploymentManager.existing(
+      'USDT',
+      USDT_ADDRESS,
+      'arbitrum',
+      'contracts/ERC20.sol:ERC20'
+    );
+
+    const usdtPricefeed = await deploymentManager.existing(
+      'USDT:priceFeed',
+      usdtPriceFeed,
+      'arbitrum'
+    );
+
+    const usdtAssetConfig = {
+      asset: USDT.address,
+      priceFeed: usdtPricefeed.address,
+      decimals: 6n,
+      borrowCollateralFactor: exp(0.80, 18),
+      liquidateCollateralFactor: exp(0.85, 18),
+      liquidationFactor: exp(0.95, 18),
+      supplyCap: exp(20_000_000, 6), 
+    };
+
+    const USDC = await deploymentManager.existing(
+      'USDC',
+      USDC_ADDRESS,
+      'arbitrum',
+      'contracts/ERC20.sol:ERC20'
+    );
+
+    const usdcPricefeed = await deploymentManager.existing(
+      'USDC:priceFeed',
+      usdcPriceFeed,
+      'arbitrum'
+    );
+
+    const usdcAssetConfig = {
+      asset: USDC.address,
+      priceFeed: usdcPricefeed.address,
+      decimals: 6n,
+      borrowCollateralFactor: exp(0.80, 18),
+      liquidateCollateralFactor: exp(0.85, 18),
+      liquidationFactor: exp(0.95, 18),
+      supplyCap: exp(30_000_000, 6),
+    };
+
+    const addUSDTAssetCalldata = ethers.utils.defaultAbiCoder.encode(
+      ['address', 'tuple(address,address,uint8,uint64,uint64,uint64,uint128)'],
+      [comet.address,
+        [
+          usdtAssetConfig.asset,
+          usdtAssetConfig.priceFeed,
+          usdtAssetConfig.decimals,
+          usdtAssetConfig.borrowCollateralFactor,
+          usdtAssetConfig.liquidateCollateralFactor,
+          usdtAssetConfig.liquidationFactor,
+          usdtAssetConfig.supplyCap
+        ]
+      ]
+    );
+
+    const addUSDCAssetCalldata = ethers.utils.defaultAbiCoder.encode(
+      ['address', 'tuple(address,address,uint8,uint64,uint64,uint64,uint128)'],
+      [comet.address,
+        [
+          usdcAssetConfig.asset,
+          usdcAssetConfig.priceFeed,
+          usdcAssetConfig.decimals,
+          usdcAssetConfig.borrowCollateralFactor,
+          usdcAssetConfig.liquidateCollateralFactor,
+          usdcAssetConfig.liquidationFactor,
+          usdcAssetConfig.supplyCap
+        ]
+      ]
+    );
+
+    const deployAndUpgradeToCalldata = ethers.utils.defaultAbiCoder.encode(
+      ['address', 'address'],
+      [configurator.address, comet.address]
+    );
+
+    const l2ProposalData = ethers.utils.defaultAbiCoder.encode(
+      ['address[]', 'uint256[]', 'string[]', 'bytes[]'],
+      [
+        [
+          configurator.address,
+          configurator.address,
+          cometAdmin.address
+        ],
+        [
+          0,
+          0,
+          0
+        ],
+        [
+          'addAsset(address,(address,address,uint8,uint64,uint64,uint64,uint128))',
+          'addAsset(address,(address,address,uint8,uint64,uint64,uint64,uint128))',
+          'deployAndUpgradeTo(address,address)',
+        ],
+        [
+          addUSDTAssetCalldata,
+          addUSDCAssetCalldata,
+          deployAndUpgradeToCalldata,
+        ]
+      ]
+    );
+
+    const createRetryableTicketGasParams = await estimateL2Transaction(
+      {
+        from: applyL1ToL2Alias(timelock.address),
+        to: bridgeReceiver.address,
+        data: l2ProposalData
+      },
+      deploymentManager
+    );
+    const refundAddress = l2Timelock.address;
+
+    const mainnetActions = [
+      // 1. Set Comet configuration and deployAndUpgradeTo WETH Comet on Arbitrum.
+      {
+        contract: arbitrumInbox,
+        signature: 'createRetryableTicket(address,uint256,uint256,address,address,uint256,uint256,bytes)',
+        args: [
+          bridgeReceiver.address,                           // address to,
+          0,                                                // uint256 l2CallValue,
+          createRetryableTicketGasParams.maxSubmissionCost, // uint256 maxSubmissionCost,
+          refundAddress,                                    // address excessFeeRefundAddress,
+          refundAddress,                                    // address callValueRefundAddress,
+          createRetryableTicketGasParams.gasLimit,          // uint256 gasLimit,
+          createRetryableTicketGasParams.maxFeePerGas,      // uint256 maxFeePerGas,
+          l2ProposalData,                                   // bytes calldata data
+        ],
+        value: createRetryableTicketGasParams.deposit
+      },
+    ];
+
+    const description = '# Add USDT and USDC as collateral into cWETHv3 on Arbitrum\n\n## Proposal summary\n\nCompound Growth Program [AlphaGrowth] proposes to add USDT and USDC into cWETHv3 on Arbitrum network. This proposal takes the governance steps recommended and necessary to update a Compound III WETH market on Arbitrum. Simulations have confirmed the market’s readiness, as much as possible, using the [Comet scenario suite](https://github.com/compound-finance/comet/tree/main/scenario). The new parameters include setting the risk parameters based off of the [recommendations from Gauntlet](https://www.comp.xyz/t/add-dai-usdc-and-usdt-as-collaterals-to-weth-comets-on-mainnet-and-arbitrum/5415/2).\n\nFurther detailed information can be found on the corresponding [proposal pull request](https://github.com/compound-finance/comet/pull/895) and [forum discussion](https://www.comp.xyz/t/add-dai-usdc-and-usdt-as-collaterals-to-weth-comets-on-mainnet-and-arbitrum/5415).\n\n\n## Proposal Actions\n\nThe first proposal action adds USDT and USDC to the WETH Comet on Arbitrum. This sends the encoded `addAsset` two times and `deployAndUpgradeTo` calls across the bridge to the governance receiver on Arbitrum.';
+    const txn = await govDeploymentManager.retry(async () =>
+      trace(await governor.propose(...(await proposal(mainnetActions, description))))
+    );
+
+    const event = txn.events.find(event => event.event === 'ProposalCreated');
+
+    const [proposalId] = event.args;
+
+    trace(`Created proposal ${proposalId}.`);
+  },
+
+  async enacted(deploymentManager: DeploymentManager): Promise<boolean> {
+    return true;
+  }, 
+
+  async verify(deploymentManager: DeploymentManager) {
+    const { comet, configurator } = await deploymentManager.getContracts();
+
+    const usdtAssetIndex = Number(await comet.numAssets()) - 2;
+    const usdcAssetIndex = Number(await comet.numAssets()) - 1;
+
+    const USDT = await deploymentManager.existing(
+      'USDT',
+      USDT_ADDRESS,
+      'arbitrum',
+      'contracts/ERC20.sol:ERC20'
+    );
+
+    const usdtAssetConfig = {
+      asset: USDT.address,
+      priceFeed: '',
+      decimals: 6n,
+      borrowCollateralFactor: exp(0.80, 18),
+      liquidateCollateralFactor: exp(0.85, 18),
+      liquidationFactor: exp(0.95, 18),
+      supplyCap: exp(20_000_000, 6),
+    };
+
+    // 1. & 3. Compare USDT asset config with Comet and Configurator asset info
+    const cometUSDTAssetInfo = await comet.getAssetInfoByAddress(
+      USDT_ADDRESS
+    );
+    expect(usdtAssetIndex).to.be.equal(cometUSDTAssetInfo.offset);
+    expect(usdtAssetConfig.asset).to.be.equal(cometUSDTAssetInfo.asset);
+    expect(exp(1, usdtAssetConfig.decimals)).to.be.equal(cometUSDTAssetInfo.scale);
+    expect(usdtAssetConfig.borrowCollateralFactor).to.be.equal(cometUSDTAssetInfo.borrowCollateralFactor);
+    expect(usdtAssetConfig.liquidateCollateralFactor).to.be.equal(cometUSDTAssetInfo.liquidateCollateralFactor);
+    expect(usdtAssetConfig.liquidationFactor).to.be.equal(cometUSDTAssetInfo.liquidationFactor);
+    expect(usdtAssetConfig.supplyCap).to.be.equal(cometUSDTAssetInfo.supplyCap);
+
+    const configuratorUSDTAssetConfig = (await configurator.getConfiguration(comet.address)).assetConfigs[usdtAssetIndex];
+    expect(usdtAssetConfig.asset).to.be.equal(configuratorUSDTAssetConfig.asset);
+    expect(usdtAssetConfig.decimals).to.be.equal(configuratorUSDTAssetConfig.decimals);
+    expect(usdtAssetConfig.borrowCollateralFactor).to.be.equal(configuratorUSDTAssetConfig.borrowCollateralFactor);
+    expect(usdtAssetConfig.liquidateCollateralFactor).to.be.equal(configuratorUSDTAssetConfig.liquidateCollateralFactor);
+    expect(usdtAssetConfig.liquidationFactor).to.be.equal(configuratorUSDTAssetConfig.liquidationFactor);
+    expect(usdtAssetConfig.supplyCap).to.be.equal(configuratorUSDTAssetConfig.supplyCap);
+
+    const USDC = await deploymentManager.existing(
+      'USDC',
+      USDC_ADDRESS,
+      'arbitrum',
+      'contracts/ERC20.sol:ERC20'
+    );
+
+    const usdcAssetConfig = {
+      asset: USDC.address,
+      priceFeed: '',
+      decimals: 6n,
+      borrowCollateralFactor: exp(0.80, 18),
+      liquidateCollateralFactor: exp(0.85, 18),
+      liquidationFactor: exp(0.95, 18),
+      supplyCap: exp(30_000_000, 6),
+    };
+
+    // 2. & 3. Compare USDC asset config with Comet and Configurator asset info
+    const cometUSDCAssetInfo = await comet.getAssetInfoByAddress(
+      USDC_ADDRESS
+    );
+    expect(usdcAssetIndex).to.be.equal(cometUSDCAssetInfo.offset);
+    expect(usdcAssetConfig.asset).to.be.equal(cometUSDCAssetInfo.asset);
+    expect(exp(1, usdcAssetConfig.decimals)).to.be.equal(cometUSDCAssetInfo.scale);
+    expect(usdcAssetConfig.borrowCollateralFactor).to.be.equal(cometUSDCAssetInfo.borrowCollateralFactor);
+    expect(usdcAssetConfig.liquidateCollateralFactor).to.be.equal(cometUSDCAssetInfo.liquidateCollateralFactor);
+    expect(usdcAssetConfig.liquidationFactor).to.be.equal(cometUSDCAssetInfo.liquidationFactor);
+    expect(usdcAssetConfig.supplyCap).to.be.equal(cometUSDCAssetInfo.supplyCap);
+
+    const configuratorUSDCAssetConfig = (await configurator.getConfiguration(comet.address)).assetConfigs[usdcAssetIndex];
+    expect(usdcAssetConfig.asset).to.be.equal(configuratorUSDCAssetConfig.asset);
+    expect(usdcAssetConfig.decimals).to.be.equal(configuratorUSDCAssetConfig.decimals);
+    expect(usdcAssetConfig.borrowCollateralFactor).to.be.equal(configuratorUSDCAssetConfig.borrowCollateralFactor);
+    expect(usdcAssetConfig.liquidateCollateralFactor).to.be.equal(configuratorUSDCAssetConfig.liquidateCollateralFactor);
+    expect(usdcAssetConfig.liquidationFactor).to.be.equal(configuratorUSDCAssetConfig.liquidationFactor);
+    expect(usdcAssetConfig.supplyCap).to.be.equal(configuratorUSDCAssetConfig.supplyCap);
+  },
+});