From 1228d3630f3524064249b3fee071f1ef38124fc2 Mon Sep 17 00:00:00 2001
From: webWorker-eos <67700142+webWorker-eos@users.noreply.github.com>
Date: Mon, 13 May 2024 22:36:39 +0800
Subject: [PATCH] add dfs tvl (#10046)

* add dfs tvl

* calc tvl by chain

* del log
---
 projects/dfs/index.js       | 75 +++++++++++++++++++++++++++++--------
 projects/helper/chains.json |  1 +
 2 files changed, 60 insertions(+), 16 deletions(-)

diff --git a/projects/dfs/index.js b/projects/dfs/index.js
index 545947a86c0f..968aa75f2963 100644
--- a/projects/dfs/index.js
+++ b/projects/dfs/index.js
@@ -1,28 +1,71 @@
-const { get_account_tvl } = require("../helper/chain/eos");
+const { get_account_tvl } = require('../helper/chain/eos');
 
 const tokens = [
-  ["eosio.token", "EOS", "eos"],
-  ["tethertether", "USDT", "tether"],
-  ["btc.ptokens", "PBTC", "ptokens-btc"],
-  ["token.defi", "BOX", "defibox"],
-  ["minedfstoken", "DFS", "defis-network"],
-  ["emanateoneos", "EMT", "emanate"],
-  ["token.newdex", "DEX", "newdex-token"],
-  ["chexchexchex", "CHEX", "chex-token"],
-  ["everipediaiq", "IQ", "everipedia"],
-  ["eosiotptoken", "TPT", "token-pocket"],
-  ["core.ogx", "OGX", "organix"],
-]
+  ['eosio.token', 'EOS', 'eos'],
+  ['tethertether', 'USDT', 'tether'],
+  ['btc.ptokens', 'PBTC', 'ptokens-btc'],
+  ['token.defi', 'BOX', 'defibox'],
+  ['minedfstoken', 'DFS', 'defis-network'],
+  ['emanateoneos', 'EMT', 'emanate'],
+  ['token.newdex', 'DEX', 'newdex-token'],
+  ['chexchexchex', 'CHEX', 'chex-token'],
+  ['everipediaiq', 'IQ', 'everipedia'],
+  ['eosiotptoken', 'TPT', 'token-pocket'],
+  ['core.ogx', 'OGX', 'organix'],
+];
 
 // https://apps.defis.network/
 // AMM swap
 async function eos() {
-  return await get_account_tvl("defisswapcnt", tokens);
+  return await get_account_tvl('defisswapcnt', tokens);
+}
+
+// https://dfs.land/
+const axios = require('axios');
+const endpoint = 'https://api.dfs.land';
+async function dfs() {
+  const info = await axios(`${endpoint}/v1/chain/get_table_rows`, {
+    method: 'POST',
+    data: JSON.stringify({
+      code: 'swapswapswap',
+      scope: 'swapswapswap',
+      table: 'markets',
+      json: true,
+      limit: -1,
+    }),
+  });
+  const markets = info.data.rows || [];
+  const dfsMkt = markets.find((m) => m.mid == 1);
+  let dfsPrice = 1;
+  if (!dfsMkt) {
+    dfsPrice = 1;
+  } else {
+    dfsPrice = parseFloat(dfsMkt.reserve0) / parseFloat(dfsMkt.reserve1);
+  }
+  let tvl = 0;
+  for (let i = 0; i < markets.length; i++) {
+    const m = markets[i];
+    if (m.contract0 == 'usdtusdtusdt' && m.sym0 == '8,USDT') {
+      tvl += parseFloat(m.reserve0) * 2;
+    } else if (m.contract1 == 'usdtusdtusdt' && m.sym1 == '8,USDT') {
+      tvl += parseFloat(m.reserve1) * 2;
+    } else if (m.contract0 == 'eosio.token' && m.sym0 == '8,DFS') {
+      tvl += parseFloat(m.reserve0) * 2 * dfsPrice;
+    } else if (m.contract1 == 'eosio.token' && m.sym1 == '8,DFS') {
+      tvl += parseFloat(m.reserve1) * 2 * dfsPrice;
+    }
+  }
+  return {
+    tether: tvl,
+  };
 }
 
 module.exports = {
   methodology: `DFS TVL is achieved by querying token balances from DFS's AMM swap liquidity smart contract.`,
   eos: {
-    tvl: eos
+    tvl: eos,
   },
-}
+  dfs: {
+    tvl: dfs,
+  },
+};
diff --git a/projects/helper/chains.json b/projects/helper/chains.json
index d4b5c965c6e6..6dfa8b9b43e2 100644
--- a/projects/helper/chains.json
+++ b/projects/helper/chains.json
@@ -76,6 +76,7 @@
   "defiverse",
   "degen",
   "dexit",
+  "dfs",
   "dfk",
   "doge",
   "dogechain",