test.js

#!/usr/bin/env node
const path = require("path");
require("dotenv").config();
const { util: {
  blocks: { getCurrentBlocks },
  humanizeNumber: { humanizeNumber },
} } = require("@defillama/sdk");
const { util } = require("@defillama/sdk");
const sdk = require("@defillama/sdk");
const whitelistedExportKeys = require('./projects/helper/whitelistedExportKeys.json')
const chainList = require('./projects/helper/chains.json')
const handleError = require('./utils/handleError')
const { log, diplayUnknownTable, sliceIntoChunks } = require('./projects/helper/utils')
const { PromisePool } = require('@supercharge/promise-pool')

const locks = [];
function getCoingeckoLock() {
  return new Promise((resolve) => {
    locks.push(resolve);
  });
}
function releaseCoingeckoLock() {
  const firstLock = locks.shift();
  if (firstLock !== undefined) {
    firstLock(null);
  }
}
// Rate limit is 50 calls/min for coingecko's API
// So we'll release one every 1.2 seconds to match it
setInterval(() => {
  releaseCoingeckoLock();
}, 2000);
const maxCoingeckoRetries = 5;

async function getTvl(
  unixTimestamp,
  ethBlock,
  chainBlocks,
  usdTvls,
  tokensBalances,
  usdTokenBalances,
  tvlFunction,
  isFetchFunction,
  storedKey,
  knownTokenPrices
) {
  if (!isFetchFunction) {
    const chain = storedKey.split('-')[0]
    const block = chainBlocks[chain]
    const api = new sdk.ChainApi({ chain, block: chainBlocks[chain], timestamp: unixTimestamp, })
    const tvlBalances = await tvlFunction(unixTimestamp, ethBlock, chainBlocks, { api, chain, block, storedKey });
    const tvlResults = await computeTVL(
      tvlBalances,
      "now",
      false,
      knownTokenPrices,
      getCoingeckoLock,
      maxCoingeckoRetries
    );
    await diplayUnknownTable({ tvlResults, storedKey, tvlBalances, })
    usdTvls[storedKey] = tvlResults.usdTvl;
    tokensBalances[storedKey] = tvlResults.tokenBalances;
    usdTokenBalances[storedKey] = tvlResults.usdTokenBalances;
  } else {
    usdTvls[storedKey] = Number(
      await tvlFunction(unixTimestamp, ethBlock, chainBlocks)
    );
  }
  if (
    typeof usdTvls[storedKey] !== "number" ||
    Number.isNaN(usdTvls[storedKey])
  ) {
    throw new Error(
      `TVL for key ${storedKey} is not a number, instead it is ${usdTvls[storedKey]}`
    );
  }
}

function mergeBalances(key, storedKeys, balancesObject) {
  if (balancesObject[key] === undefined) {
    balancesObject[key] = {};
    storedKeys.map((keyToMerge) => {
      Object.entries(balancesObject[keyToMerge]).forEach((balance) => {
        try {
          util.sumSingleBalance(balancesObject[key], balance[0], BigNumber(balance[1] || '0').toFixed(0));
        } catch (e) {
          console.log(e)
        }
      });
    });
  }
}

if (process.argv.length < 3) {
  console.error(`Missing argument, you need to provide the filename of the adapter to test.
    Eg: node test.js projects/myadapter.js`);
  process.exit(1);
}
const passedFile = path.resolve(process.cwd(), process.argv[2]);

const originalCall = sdk.api.abi.call
sdk.api.abi.call = async (...args) => {
  try {
    return await originalCall(...args)
  } catch (e) {
    console.log("sdk.api.abi.call errored with params:", args)
    throw e
  }
}

(async () => {
  let module = {};
  try {
    module = require(passedFile)
  } catch (e) {
    console.log(e)
  }
  const chains = Object.keys(module).filter(item => typeof module[item] === 'object' && !Array.isArray(module[item]));
  checkExportKeys(module, passedFile, chains)
  const unixTimestamp = Math.round(Date.now() / 1000) - 60;
  const { chainBlocks } = await getCurrentBlocks([]); // fetch only ethereum block for local test
  const ethBlock = chainBlocks.ethereum;
  const usdTvls = {};
  const tokensBalances = {};
  const usdTokenBalances = {};
  const chainTvlsToAdd = {};
  const knownTokenPrices = {};

  let tvlPromises = Object.entries(module).map(async ([chain, value]) => {
    if (typeof value !== "object" || value === null) {
      return;
    }
    return Promise.all(
      Object.entries(value).map(async ([tvlType, tvlFunction]) => {
        if (typeof tvlFunction !== "function") {
          return;
        }
        let storedKey = `${chain}-${tvlType}`;
        let tvlFunctionIsFetch = false;
        if (tvlType === "tvl") {
          storedKey = chain;
        } else if (tvlType === "fetch") {
          storedKey = chain;
          tvlFunctionIsFetch = true;
        }
        await getTvl(
          unixTimestamp,
          ethBlock,
          chainBlocks,
          usdTvls,
          tokensBalances,
          usdTokenBalances,
          tvlFunction,
          tvlFunctionIsFetch,
          storedKey,
          knownTokenPrices
        );
        let keyToAddChainBalances = tvlType;
        if (tvlType === "tvl" || tvlType === "fetch") {
          keyToAddChainBalances = "tvl";
        }
        if (chainTvlsToAdd[keyToAddChainBalances] === undefined) {
          chainTvlsToAdd[keyToAddChainBalances] = [storedKey];
        } else {
          chainTvlsToAdd[keyToAddChainBalances].push(storedKey);
        }
      })
    );
  });
  if (module.tvl || module.fetch) {
    let mainTvlIsFetch;
    if (module.tvl) {
      mainTvlIsFetch = false;
    } else {
      mainTvlIsFetch = true;
    }
    const mainTvlPromise = getTvl(
      unixTimestamp,
      ethBlock,
      chainBlocks,
      usdTvls,
      tokensBalances,
      usdTokenBalances,
      mainTvlIsFetch ? module.fetch : module.tvl,
      mainTvlIsFetch,
      "tvl",
      knownTokenPrices
    );
    tvlPromises.push(mainTvlPromise);
  }
  await Promise.all(tvlPromises);
  Object.entries(chainTvlsToAdd).map(([tvlType, storedKeys]) => {
    if (usdTvls[tvlType] === undefined) {
      usdTvls[tvlType] = storedKeys.reduce(
        (total, key) => total + usdTvls[key],
        0
      );
      mergeBalances(tvlType, storedKeys, tokensBalances);
      mergeBalances(tvlType, storedKeys, usdTokenBalances);
    }
  });
  if (usdTvls.tvl === undefined) {
    throw new Error(
      "Protocol doesn't have total tvl, make sure to export a tvl key either on the main object or in one of the chains"
    );
  }

  Object.entries(usdTokenBalances).forEach(([chain, balances]) => {
    console.log(`--- ${chain} ---`);
    Object.entries(balances)
      .sort((a, b) => b[1] - a[1])
      .forEach(([symbol, balance]) => {
        console.log(symbol.padEnd(25, " "), humanizeNumber(balance));
      });
    console.log("Total:", humanizeNumber(usdTvls[chain]), "\n");
  });
  console.log(`------ TVL ------`);
  Object.entries(usdTvls).forEach(([chain, usdTvl]) => {
    if (chain !== "tvl") {
      console.log(chain.padEnd(25, " "), humanizeNumber(usdTvl));
    }
  });
  console.log("\ntotal".padEnd(25, " "), humanizeNumber(usdTvls.tvl), "\n");

  process.exit(0);
})();


function checkExportKeys(module, filePath, chains) {
  filePath = filePath.split(path.sep)
  filePath = filePath.slice(filePath.lastIndexOf('projects') + 1)

  if (filePath.length > 2
    || (filePath.length === 1 && !['.js', ''].includes(path.extname(filePath[0]))) // matches .../projects/projectXYZ.js or .../projects/projectXYZ
    || (filePath.length === 2 &&
      !(['api.js', 'index.js', 'apiCache.js',].includes(filePath[1])  // matches .../projects/projectXYZ/index.js
        || ['treasury',].includes(filePath[0])  // matches .../projects/treasury/project.js
      )))
    process.exit(0)

  const blacklistedRootExportKeys = ['tvl', 'staking', 'pool2', 'borrowed', 'treasury', 'offers', 'vesting'];
  const rootexportKeys = Object.keys(module).filter(item => typeof module[item] !== 'object');
  const unknownChains = chains.filter(chain => !chainList.includes(chain));
  const blacklistedKeysFound = rootexportKeys.filter(key => blacklistedRootExportKeys.includes(key));
  let exportKeys = chains.map(chain => Object.keys(module[chain])).flat()
  exportKeys.push(...rootexportKeys)
  exportKeys = Object.keys(exportKeys.reduce((agg, key) => ({ ...agg, [key]: 1 }), {})) // get unique keys
  const unknownKeys = exportKeys.filter(key => !whitelistedExportKeys.includes(key))

  const hallmarks = module.hallmarks || [];

  if (hallmarks.length) {
    const TIMESTAMP_LENGTH = 10;
    hallmarks.forEach(([timestamp, text]) => {
      const strTimestamp = String(timestamp)
      if (strTimestamp.length !== TIMESTAMP_LENGTH) {
        throw new Error(`
        Incorrect time format for the hallmark: [${strTimestamp}, ${text}] ,please use unix timestamp
        `)
      }
    })
  }


  if (unknownChains.length) {
    throw new Error(`
    Unknown chain(s): ${unknownChains.join(', ')}
    Note: if you think that the chain is correct but missing from our list, please add it to 'projects/helper/chains.json' file
    `)
  }

  if (blacklistedKeysFound.length) {
    throw new Error(`
    Please move the following keys into the chain: ${blacklistedKeysFound.join(', ')}

    We have a new adapter export specification now where tvl and other chain specific information are moved inside chain export.
    For example if your protocol is on ethereum and has tvl and pool2, the export file would look like:
    
        module.exports = {
          methodlogy: '...',
          ethereum: {
            tvl: 
            pool2:
          }
        }

    `)
  }

  if (unknownKeys.length) {
    throw new Error(`
    Found export keys that were not part of specification: ${unknownKeys.join(', ')}

    List of valid keys: ${['', '', ...whitelistedExportKeys].join('\n\t\t\t\t')}
    `)
  }
}


process.on('unhandledRejection', handleError)
process.on('uncaughtException', handleError)


const BigNumber = require("bignumber.js");
const axios = require("axios");

const ethereumAddress = "0x0000000000000000000000000000000000000000";
const weth = "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2";

function fixBalances(balances) {
  Object.entries(balances).forEach(([token, value]) => {
    let newKey
    if (token.startsWith("0x")) newKey = `ethereum:${token}`
    else if (!token.includes(':')) newKey = `coingecko:${token}`
    if (newKey) {
      delete balances[token]
      sdk.util.sumSingleBalance(balances, newKey, BigNumber(value).toFixed(0))
    }
  })
}

const confidenceThreshold = 0.5
async function computeTVL(balances, timestamp) {
  fixBalances(balances)

  Object.keys(balances).map(k => {
    if (+balances[k] === 0) {
      delete balances[k]
      return;
    }
    if (k.toLowerCase() === k) return;
    balances[k.toLowerCase()] = (k.toLowerCase() in balances)
      ? Number(balances[k.toLowerCase()])
      + Number(balances[k]) : balances[k];
    delete balances[k]
  })

  const eth = balances[ethereumAddress];
  if (eth !== undefined) {
    balances[weth] = new BigNumber(balances[weth] ?? 0).plus(eth).toFixed(0);
    delete balances[ethereumAddress];
  }

  const PKsToTokens = {};
  const readKeys = Object.keys(balances)
    .map((address) => {
      const PK = `${timestamp === "now" ? "" : "asset#"}${address.toLowerCase()}`;
      if (PKsToTokens[PK] === undefined) {
        PKsToTokens[PK] = [address];
        return PK;
      } else {
        PKsToTokens[PK].push(address);
        return undefined;
      }
    })
    .filter((item) => item !== undefined);

  const burl = "https://coins.llama.fi/prices/current/";
  const unknownTokens = {}
  let tokenData = []
  readKeys.forEach(i => unknownTokens[i] = true)

  const { errors } = await PromisePool.withConcurrency(5)
    .for(sliceIntoChunks(readKeys, 40))
    .process(async (keys) => {
      const coins = keys.reduce((p, c) => p + `${c},`, "");
      tokenData.push((await axios.get(`${burl}${coins}`)).data.coins)
    })

  if (errors && errors.length)
    throw errors[0]

  let usdTvl = 0;
  const tokenBalances = {};
  const usdTokenBalances = {};

  tokenData.forEach(response => {
    Object.keys(response).forEach(address => {
      delete unknownTokens[address]
      const data = response[address];
      const balance = balances[address];

      if (data == undefined) tokenBalances[`UNKNOWN (${address})`] = balance
      if ('confidence' in data && data.confidence < confidenceThreshold) return

      let amount, usdAmount;
      if (address.includes(":") && !address.startsWith("coingecko:")) {
        amount = new BigNumber(balance).div(10 ** data.decimals).toNumber();
        usdAmount = amount * data.price;
      } else {
        amount = Number(balance);
        usdAmount = amount * data.price;
      }

      if (usdAmount > 1e8) {
        console.log(`-------------------
Warning: `)
        console.log(`Token ${address} has more than 100M in value (${usdAmount / 1e6} M) , price data: `, data)
        console.log(`-------------------`)
      }
      tokenBalances[data.symbol] = (tokenBalances[data.symbol] ?? 0) + amount;
      usdTokenBalances[data.symbol] = (usdTokenBalances[data.symbol] ?? 0) + usdAmount;
      usdTvl += usdAmount;
    })
  });

  Object.keys(unknownTokens).forEach(address => tokenBalances[`UNKNOWN (${address})`] = balances[address])

  return {
    usdTvl,
    tokenBalances,
    usdTokenBalances,
  };
}