perf: ⚡️ add utils for adding liq, impersonating and master sign

scripts/addLiquidity.js

@@ -0,0 +1,78 @@
+const { ethers } = require("hardhat");
+const impersonateAccounts = require("./impersonate");
+
+const mineTx = async (tx) => {
+  await (await tx).wait();
+};
+
+const tokenMapping = {
+  usdc: {
+    impersonateSigner: "0xfcb19e6a322b27c06842a71e8c725399f049ae3a",
+    address: "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
+    abi: [
+      "function mint(address _to, uint256 _amount) external returns (bool);",
+    ],
+    process: async function(owner, to, amt) {
+      const contract = new ethers.Contract(this.address, this.abi, owner);
+
+      await mineTx(contract.mint(to, amt));
+    },
+  },
+  dai: {
+    impersonateSigner: "0x47ac0fb4f2d84898e4d9e7b4dab3c24507a6d503",
+    abi: ["function transfer(address to, uint value)"],
+    address: "0x6b175474e89094c44da98b954eedeac495271d0f",
+    process: async function(owner, to, amt) {
+      const contract = new ethers.Contract(this.address, this.abi, owner);
+      await mineTx(contract.transfer(to, amt));
+    },
+  },
+  usdt: {
+    impersonateSigner: "0xc6cde7c39eb2f0f0095f41570af89efc2c1ea828",
+    address: "0xdac17f958d2ee523a2206206994597c13d831ec7",
+    abi: [
+      "function issue(uint amount)",
+      "function transfer(address to, uint value)",
+    ],
+    process: async function(owner, address, amt) {
+      const contract = new ethers.Contract(this.address, this.abi, owner);
+
+      await mineTx(contract.issue(amt));
+      await mineTx(contract.transfer(address, amt));
+    },
+  },
+  wbtc: {
+    impersonateSigner: "0xCA06411bd7a7296d7dbdd0050DFc846E95fEBEB7",
+    address: "0x2260fac5e5542a773aa44fbcfedf7c193bc2c599",
+    abi: ["function mint(address _to, uint256 _amount) public returns (bool)"],
+    process: async function(owner, address, amt) {
+      const contract = new ethers.Contract(this.address, this.abi, owner);
+      await mineTx(contract.mint(address, amt));
+    },
+  },
+};
+
+module.exports = async (tokenName, address, amt) => {
+  const [signer] = await ethers.getSigners();
+  tokenName = tokenName.toLowerCase();
+  if (!tokenMapping[tokenName]) {
+    throw new Error(
+      "Add liquidity doesn't support the following token: ",
+      tokenName
+    );
+  }
+
+  const token = tokenMapping[tokenName];
+
+  const [impersonatedSigner] = await impersonateAccounts([
+    token.impersonateSigner,
+  ]);
+
+  // send 1 eth to cover any tx costs.
+  await signer.sendTransaction({
+    to: impersonatedSigner.address,
+    value: ethers.utils.parseEther("1"),
+  });
+
+  await token.process(impersonatedSigner, address, amt);
+};

scripts/getMasterSigner.js

@@ -1,23 +1,25 @@
 const hre = require("hardhat");
-const { ethers, waffle } = hre;
+const { ethers } = hre;
 const addresses = require("./constant/addresses");
 const abis = require("./constant/abis");
-const { provider, deployContract } = waffle
 
+module.exports = async function() {
+  const [_, __, ___, wallet3] = await ethers.getSigners();
+  const instaIndex = new ethers.Contract(
+    addresses.core.instaIndex,
+    abis.core.instaIndex,
+    wallet3
+  );
 
-module.exports = async function () {
-    const instaIndex = await ethers.getContractAt(abis.core.instaIndex, addresses.core.instaIndex)
+  const masterAddress = await instaIndex.master(); // TODO: make it constant?
+  await hre.network.provider.request({
+    method: "hardhat_impersonateAccount",
+    params: [masterAddress],
+  });
+  await wallet3.sendTransaction({
+    to: masterAddress,
+    value: ethers.utils.parseEther("10"),
+  });
 
-    const masterAddress = await instaIndex.master(); // TODO: make it constant?
-    await hre.network.provider.request({
-        method: "hardhat_impersonateAccount",
-        params: [ masterAddress]
-    })
-    const [wallet0, wallet1, wallet2, wallet3] = await ethers.getSigners()
-    await wallet3.sendTransaction({
-        to: masterAddress,
-        value: ethers.utils.parseEther("10")
-      });
-
-    return await ethers.getSigner(masterAddress);
+  return await ethers.getSigner(masterAddress);
 };

scripts/impersonate.js

@@ -0,0 +1,15 @@
+const { ethers, network } = require("hardhat");
+
+module.exports = async (accounts) => {
+  const signers = [];
+  for (const account of accounts) {
+    await network.provider.request({
+      method: "hardhat_impersonateAccount",
+      params: [account],
+    });
+
+    signers.push(await ethers.getSigner(account));
+  }
+
+  return signers;
+};