Add Nawa Protocol yield adapter

src/adaptors/nawa-protocol/index.js

@@ -0,0 +1,128 @@
+const axios = require('axios');
+const utils = require('../utils');
+
+const PROJECT = 'nawa-protocol';
+const CHAIN = 'ZIGChain';
+const LCD = 'https://public-zigchain-lcd.numia.xyz';
+const VAULT_URL = 'https://www.nawa.finance/vault/usdc';
+
+const USDC_VAULT = 'zig1fn4rrr5knlg93nf3wyme9fzmgve3fftxu5l7wv90llp77mwg7ctq2lfwtd';
+const USDC_DENOM =
+  'ibc/6490A7EAB61059BFC1CDDEB05917DD70BDF3A611654162A1A47DB930D40D8AF4';
+const SHARE_DENOM = `coin.${USDC_VAULT}.n1usdc`;
+const USDC_PRICE_KEY = 'coingecko:usd-coin';
+
+const SECONDS_PER_DAY = 24 * 60 * 60;
+const APY_LOOKBACK_DAYS = 7;
+const BLOCK_SAMPLE_SIZE = 100000;
+
+const encodeQuery = (query) =>
+  Buffer.from(JSON.stringify(query)).toString('base64');
+
+const queryContract = async (contract, query, height) => {
+  const encoded = encodeQuery(query);
+  const options = height
+    ? { headers: { 'x-cosmos-block-height': String(height) } }
+    : undefined;
+
+  const { data } = await axios.get(
+    `${LCD}/cosmwasm/wasm/v1/contract/${contract}/smart/${encoded}`,
+    options
+  );
+
+  return data?.data;
+};
+
+const getBlock = async (height = 'latest') => {
+  const { data } = await axios.get(
+    `${LCD}/cosmos/base/tendermint/v1beta1/blocks/${height}`
+  );
+
+  return {
+    height: Number(data.block.header.height),
+    timestamp: Date.parse(data.block.header.time),
+  };
+};
+
+const getHistoricalHeight = async (daysAgo) => {
+  const latest = await getBlock();
+  const sampleHeight = Math.max(1, latest.height - BLOCK_SAMPLE_SIZE);
+  const sample = await getBlock(sampleHeight);
+  const secondsPerBlock =
+    (latest.timestamp - sample.timestamp) / 1000 / (latest.height - sample.height);
+
+  return {
+    latest,
+    height: Math.max(
+      1,
+      latest.height - Math.round((daysAgo * SECONDS_PER_DAY) / secondsPerBlock)
+    ),
+  };
+};
+
+const getPricePerShare = async (height) => {
+  const result = await queryContract(
+    USDC_VAULT,
+    { asset_for_shares: { shares: '1000000' } },
+    height
+  );
+
+  return Number(result?.asset) / 1e6;
+};
+
+const getApy = async () => {
+  const currentPps = await getPricePerShare();
+  const historicalHeight = await getHistoricalHeight(APY_LOOKBACK_DAYS);
+  const historicalBlock = await getBlock(historicalHeight.height);
+  const historicalPps = await getPricePerShare(historicalHeight.height);
+
+  const days =
+    (historicalHeight.latest.timestamp - historicalBlock.timestamp) /
+    1000 /
+    SECONDS_PER_DAY;
+
+  if (
+    !Number.isFinite(currentPps) ||
+    !Number.isFinite(historicalPps) ||
+    historicalPps <= 0 ||
+    days <= 0
+  ) {
+    throw new Error('Invalid Nawa USDC vault price-per-share data');
+  }
+
+  return (Math.pow(currentPps / historicalPps, 365 / days) - 1) * 100;
+};
+
+const apy = async () => {
+  const [{ aum }, prices, apyBase] = await Promise.all([
+    queryContract(USDC_VAULT, { aum: {} }),
+    utils.getPriceApiData(`/prices/current/${USDC_PRICE_KEY}`),
+    getApy(),
+  ]);
+
+  const usdcPrice = prices?.coins?.[USDC_PRICE_KEY]?.price || 1;
+  const tvlUsd = (Number(aum) / 1e6) * usdcPrice;
+
+  return [
+    {
+      pool: `${USDC_VAULT}-zigchain`,
+      chain: CHAIN,
+      project: PROJECT,
+      symbol: 'USDC',
+      tvlUsd,
+      apyBase,
+      apyBase7d: apyBase,
+      underlyingTokens: [USDC_DENOM],
+      searchTokenOverride: SHARE_DENOM,
+      poolMeta: 'n1USDC Vault',
+      url: VAULT_URL,
+    },
+  ];
+};
+
+module.exports = {
+  protocolId: '6096',
+  apy,
+  timetravel: false,
+  url: VAULT_URL,
+};