fix: add remove script

package.json

@@ -23,7 +23,8 @@
     "tutorial1-status": "npx hardhat run ./tutorial1/getVaultStatus.ts",
     "tutorial1-setPosition": "npx hardhat run ./tutorial1/setVaultLiquidity.ts",
     "tutorial1-resetPosition": "npx hardhat run ./tutorial1/resetVaultLiquidity.ts",
-    "tutorial1-withdraw": "npx hardhat run ./tutorial1/withdrawAll.ts"
+    "tutorial1-withdraw": "npx hardhat run ./tutorial1/withdrawAll.ts",
+    "tutorial1-remove": "npx hardhat run ./tutorial1/removeLiquidity.ts"
   },
   "devDependencies": {
     "@arrakisfi/v2-core": "1.1.2",

tutorial1/removeLiquidity.ts

@@ -0,0 +1,136 @@
+import hre, { ethers } from "hardhat";
+import { IArrakisV2 } from "../typechain";
+import { sleep } from "../src/utils";
+import { BigNumber } from "ethers";
+import { readFileSync } from "fs";
+
+import * as dotenv from "dotenv";
+dotenv.config({ path: __dirname + "../.env" });
+const maxFeeGlobal = process.env.MAX_FEE_OVERRIDE;
+const maxPriorityFeeGlobal = process.env.MAX_PRIORITY_FEE_OVERRIDE;
+
+async function main() {
+  const vaultAddr = readFileSync(`.tutorial1.${hre.network.name}`, {
+    encoding: "utf8",
+    flag: "r",
+  });
+  const [user] = await ethers.getSigners();
+  let feeData =
+    Number(maxFeeGlobal) > 0 && Number(maxPriorityFeeGlobal) > 0
+      ? {
+          maxFeePerGas: BigNumber.from(maxFeeGlobal),
+          maxPriorityFeePerGas: BigNumber.from(maxPriorityFeeGlobal),
+        }
+      : await user?.provider?.getFeeData();
+  if (
+    feeData == undefined ||
+    feeData.maxFeePerGas == undefined ||
+    feeData.maxPriorityFeePerGas == undefined
+  ) {
+    console.log("ERROR: cannot fetch fee data");
+    return;
+  }
+  let maxFeePerGas: BigNumber = feeData.maxFeePerGas;
+  let maxPriorityFeePerGas: BigNumber = feeData.maxPriorityFeePerGas;
+  if (
+    hre.network.name === "mainnet" ||
+    hre.network.name === "polygon" ||
+    hre.network.name === "optimism" ||
+    hre.network.name === "arbitrum" ||
+    hre.network.name === "goerli"
+  ) {
+    console.log(
+      `remove positions for vault: ${vaultAddr} on network: ${
+        hre.network.name
+      }\nGas Info:\nMaxFeePerGas: ${Number(
+        ethers.utils.formatUnits(maxFeePerGas, "gwei")
+      ).toFixed(1)} gwei\nMaxPriorityFeePerGas: ${Number(
+        ethers.utils.formatUnits(maxPriorityFeePerGas, "gwei")
+      ).toFixed(1)} gwei\n\n\n    sleeping for 10 seconds\n\n`
+    );
+    await sleep(10000);
+  }
+
+  const vault = (await ethers.getContractAt(
+    "IArrakisV2",
+    vaultAddr,
+    user
+  )) as IArrakisV2;
+
+  const ranges = await vault.getRanges();
+
+  if (ranges.length === 0) {
+    console.log("ERROR: initial ranges not set");
+    return;
+  }
+
+  const maxUint128 = ethers.constants.Two.pow(ethers.BigNumber.from("128")).sub(
+    ethers.constants.One
+  );
+
+  const burns = [];
+
+  for (let i = 0; i < ranges.length; i++) {
+    burns.push({ liquidity: maxUint128, range: ranges[i] });
+  }
+
+  console.log("rebalance tx...");
+  const gasEstimate = await vault.estimateGas.rebalance({
+    burns: burns,
+    mints: [],
+    swap: {
+      payload: "0x",
+      router: ethers.constants.AddressZero,
+      amountIn: ethers.constants.Zero,
+      expectedMinReturn: ethers.constants.Zero,
+      zeroForOne: true,
+    },
+    minBurn0: 0,
+    minBurn1: 0,
+    minDeposit0: 0,
+    minDeposit1: 0,
+  });
+  if (Number(maxFeeGlobal) == 0) {
+    feeData = await user?.provider?.getFeeData();
+  }
+  if (
+    feeData != undefined &&
+    feeData.maxFeePerGas != undefined &&
+    feeData.maxPriorityFeePerGas != undefined
+  ) {
+    maxFeePerGas = feeData.maxFeePerGas;
+    maxPriorityFeePerGas = feeData.maxPriorityFeePerGas;
+  }
+  const tx = await vault.rebalance(
+    {
+      burns: burns,
+      mints: [],
+      swap: {
+        payload: "0x",
+        router: ethers.constants.AddressZero,
+        amountIn: ethers.constants.Zero,
+        expectedMinReturn: ethers.constants.Zero,
+        zeroForOne: true,
+      },
+      minBurn0: 0,
+      minBurn1: 0,
+      minDeposit0: 0,
+      minDeposit1: 0,
+    },
+    {
+      gasLimit: gasEstimate.add(BigNumber.from("50000")),
+      maxFeePerGas: maxFeePerGas,
+      maxPriorityFeePerGas: maxPriorityFeePerGas,
+    }
+  );
+  console.log("tx hash:", tx.hash);
+  await tx.wait();
+  console.log("Complete!");
+}
+
+main()
+  .then(() => process.exit(0))
+  .catch((error) => {
+    console.error(error);
+    process.exit(1);
+  });