@brian-ai/ee-portals-solver/dist/index.js

> ⚠️ README: work in progress.

// src/index.ts
import { Solver } from "@brian-ai/ee-core";

// src/actions/deposit.ts
import ky from "ky";
import {
  createPublicClient,
  http,
  encodeFunctionData,
  erc20Abi
} from "viem";

// src/constants.ts
var NATIVE_ADDRESS = "0x0000000000000000000000000000000000000000";

// src/utils.ts
var ADJUSTED_CHAINS_NAME_PORTALS = {
  "arbitrum one": "arbitrum",
  "op mainnet": "optimism",
  avalanche: "avalanche",
  "bnb smart chain": "bsc",
  gnosis: "gnosis",
  polygon: "polygon",
  base: "base",
  ethereum: "ethereum",
  fantom: "fantom"
};

// src/actions/deposit.ts
import { getAmountToApprove } from "@brian-ai/ee-core";
var portalsDeposit = async ({
  apiUrl: inputApiUrl,
  apiKey,
  feeReceiver,
  fee,
  slippage,
  chain,
  address,
  inputToken,
  outputToken,
  amount
}) => {
  const adjustedChainName = ADJUSTED_CHAINS_NAME_PORTALS[chain.name.toLowerCase()];
  const publicClient = createPublicClient({
    chain,
    transport: http()
  });
  const blockNumber = await publicClient.getBlockNumber();
  const tokens = `${adjustedChainName.toLowerCase()}:${outputToken}`;
  const tokenInfoUrl = `${inputApiUrl}/tokens?ids=${tokens}&networks=${adjustedChainName.toLowerCase()}&sortBy=liquidity&sortDirection=desc`;
  const tokenOut = await fetch(tokenInfoUrl, {
    headers: {
      Authorization: `Bearer ${apiKey}`
    }
  });
  const tokenOutJson = await tokenOut.json();
  const tokenOutAddress = tokenOutJson.tokens[0].address;
  if (!tokenOut) {
    return Promise.reject("Portals: token not supported");
  }
  const depositUrl = `${inputApiUrl}/portal?sender=${address}&inputToken=${adjustedChainName.toLowerCase()}%3A${inputToken}&inputAmount=${amount}&outputToken=${adjustedChainName.toLowerCase()}%3A${tokenOutAddress}&slippageTolerancePercentage=${slippage}&partner=${feeReceiver}&feePercentage=${fee}&validate=false`;
  const data = await ky.get(depositUrl, {
    headers: {
      "Content-Type": "application/json",
      Authorization: `Bearer ${apiKey}`
    }
  }).json();
  const steps = [
    {
      chainId: chain.id,
      blockNumber: Number(blockNumber),
      from: data.tx.from,
      to: data.tx.to,
      gasLimit: "100000",
      gasPrice: void 0,
      data: data.tx.data,
      value: data.tx.value
    }
  ];
  if (inputToken !== NATIVE_ADDRESS) {
    const approveAmount = await getAmountToApprove(
      inputToken,
      address,
      data.tx.to,
      amount,
      chain
    );
    if (approveAmount > 0n) {
      steps.unshift({
        chainId: chain.id,
        blockNumber: Number(blockNumber),
        from: address,
        to: inputToken,
        gasLimit: "80000",
        gasPrice: void 0,
        data: encodeFunctionData({
          abi: erc20Abi,
          functionName: "approve",
          args: [data.tx.to, approveAmount]
        }),
        value: "0"
      });
    }
  }
  return steps;
};

// src/actions/withdraw.ts
import ky2 from "ky";
import {
  createPublicClient as createPublicClient2,
  http as http2,
  encodeFunctionData as encodeFunctionData2,
  erc20Abi as erc20Abi2
} from "viem";
import { getAmountToApprove as getAmountToApprove2 } from "@brian-ai/ee-core";
var portalsWithdraw = async ({
  apiUrl: inputApiUrl,
  apiKey,
  feeReceiver,
  fee,
  slippage,
  chain,
  address,
  inputToken,
  outputToken,
  amount
}) => {
  const adjustedChainName = ADJUSTED_CHAINS_NAME_PORTALS[chain.name.toLowerCase()];
  const publicClient = createPublicClient2({
    chain,
    transport: http2()
  });
  const blockNumber = await publicClient.getBlockNumber();
  const tokens = `${adjustedChainName.toLowerCase()}:${outputToken}`;
  const tokenInfoUrl = `${inputApiUrl}/tokens?ids=${tokens}&networks=${adjustedChainName.toLowerCase()}&sortBy=liquidity&sortDirection=desc`;
  const tokenOut = await fetch(tokenInfoUrl, {
    headers: {
      Authorization: `Bearer ${apiKey}`
    }
  });
  const tokenOutJson = await tokenOut.json();
  const tokenOutAddress = tokenOutJson.tokens[0].address;
  if (!tokenOut) {
    return Promise.reject("Portals: token not supported");
  }
  const withdrawUrl = `${inputApiUrl}/portal?sender=${address}&inputToken=${adjustedChainName.toLowerCase()}%3A${inputToken}&inputAmount=${amount}&outputToken=${adjustedChainName.toLowerCase()}%3A${tokenOutAddress}&slippageTolerancePercentage=${slippage}&partner=${feeReceiver}&feePercentage=${fee}&validate=false`;
  const data = await ky2.get(withdrawUrl, {
    headers: {
      "Content-Type": "application/json",
      Authorization: `Bearer ${apiKey}`
    }
  }).json();
  const steps = [
    {
      chainId: chain.id,
      blockNumber: Number(blockNumber),
      from: data.tx.from,
      to: data.tx.to,
      gasLimit: "100000",
      gasPrice: void 0,
      data: data.tx.data,
      value: data.tx.value
    }
  ];
  if (inputToken !== NATIVE_ADDRESS) {
    const approveAmount = await getAmountToApprove2(
      inputToken,
      address,
      data.tx.to,
      amount,
      chain
    );
    if (approveAmount > 0n) {
      steps.unshift({
        chainId: chain.id,
        blockNumber: Number(blockNumber),
        from: address,
        to: inputToken,
        gasLimit: "80000",
        gasPrice: void 0,
        data: encodeFunctionData2({
          abi: erc20Abi2,
          functionName: "approve",
          args: [data.tx.to, approveAmount]
        }),
        value: "0"
      });
    }
  }
  return steps;
};

// src/actions/swap.ts
import ky3 from "ky";
import {
  createPublicClient as createPublicClient3,
  http as http3,
  encodeFunctionData as encodeFunctionData3,
  erc20Abi as erc20Abi3
} from "viem";
import { getAmountToApprove as getAmountToApprove3 } from "@brian-ai/ee-core";
var portalsSwap = async ({
  apiUrl: inputApiUrl,
  apiKey,
  feeReceiver,
  fee,
  slippage,
  chain,
  address,
  inputToken,
  outputToken,
  amount
}) => {
  const adjustedChainName = ADJUSTED_CHAINS_NAME_PORTALS[chain.name.toLowerCase()];
  const publicClient = createPublicClient3({
    chain,
    transport: http3()
  });
  const blockNumber = await publicClient.getBlockNumber();
  const swapUrl = `${inputApiUrl}/portal?sender=${address}&inputToken=${adjustedChainName.toLowerCase()}%3A${inputToken}&inputAmount=${amount}&outputToken=${adjustedChainName.toLowerCase()}%3A${outputToken}&slippageTolerancePercentage=${slippage}&partner=${feeReceiver}&feePercentage=${fee}&validate=false`;
  const data = await ky3.get(swapUrl, {
    headers: {
      "Content-Type": "application/json",
      Authorization: `Bearer ${apiKey}`
    }
  }).json();
  const steps = [
    {
      chainId: chain.id,
      blockNumber: Number(blockNumber),
      from: data.tx.from,
      to: data.tx.to,
      gasLimit: "100000",
      gasPrice: void 0,
      data: data.tx.data,
      value: data.tx.value
    }
  ];
  if (inputToken !== NATIVE_ADDRESS) {
    const approveAmount = await getAmountToApprove3(
      inputToken,
      address,
      data.tx.to,
      amount,
      chain
    );
    if (approveAmount > 0n) {
      steps.unshift({
        chainId: chain.id,
        blockNumber: Number(blockNumber),
        from: address,
        to: inputToken,
        gasLimit: "80000",
        gasPrice: void 0,
        data: encodeFunctionData3({
          abi: erc20Abi3,
          functionName: "approve",
          args: [data.tx.to, approveAmount]
        }),
        value: "0"
      });
    }
  }
  return steps;
};

// src/index.ts
var PortalsSolver = class extends Solver {
  apiKey;
  apiUrl;
  feeReceiver;
  fee = 0.1;
  slippage = 0.5;
  constructor(allowedChains, apiUrl, apiKey, feeReceiver, fee = 0.1, slippage = 0.5) {
    super("portals", allowedChains);
    this.apiUrl = apiUrl;
    this.apiKey = apiKey;
    this.feeReceiver = feeReceiver;
    this.fee = fee;
    this.slippage = slippage;
  }
  async execute(action, data) {
    if (data.chain && !this.allowedChains.includes(data.chain.id)) {
      return Promise.reject(
        `[${this.name} solver] chain ${data.chain.id} not supported.`
      );
    }
    switch (action) {
      case "swap":
        return {
          type: "write",
          solver: this.name,
          data: await portalsSwap({
            ...data,
            apiUrl: this.apiUrl,
            apiKey: this.apiKey,
            feeReceiver: this.feeReceiver,
            fee: this.fee,
            slippage: this.slippage
          })
        };
      case "deposit":
        return {
          type: "write",
          solver: this.name,
          data: await portalsDeposit({
            ...data,
            apiUrl: this.apiUrl,
            apiKey: this.apiKey,
            feeReceiver: this.feeReceiver,
            fee: this.fee,
            slippage: this.slippage
          })
        };
      case "withdraw":
        return {
          type: "write",
          solver: this.name,
          data: await portalsWithdraw({
            ...data,
            apiUrl: this.apiUrl,
            apiKey: this.apiKey,
            feeReceiver: this.feeReceiver,
            fee: this.fee,
            slippage: this.slippage
          })
        };
      default:
        return Promise.reject(
          `[${this.name} solver] action "${action}" not supported.`
        );
    }
  }
};
export {
  PortalsSolver
};