From 25842f5f5b425fcdf4b3db3678b8ac871f8d9368 Mon Sep 17 00:00:00 2001
From: 0xpeluche <110820448+0xpeluche@users.noreply.github.com>
Date: Tue, 9 Apr 2024 11:18:01 +0200
Subject: [PATCH] feat:Adapter,Euclid-finance,ethereum (#1398)

---
 .vscode/launch.json                           |  1 +
 .../euclid-finance/ethereum/balance.ts        | 37 +++++++++++++++++++
 src/adapters/euclid-finance/ethereum/index.ts | 31 ++++++++++++++++
 src/adapters/euclid-finance/index.ts          | 10 +++++
 src/adapters/index.ts                         |  2 +
 5 files changed, 81 insertions(+)
 create mode 100644 src/adapters/euclid-finance/ethereum/balance.ts
 create mode 100644 src/adapters/euclid-finance/ethereum/index.ts
 create mode 100644 src/adapters/euclid-finance/index.ts

diff --git a/.vscode/launch.json b/.vscode/launch.json
index 9f4eaec4a..ae7b01ddd 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -205,6 +205,7 @@
         "ethena",
         "ether.fi",
         "ethos-reserve",
+        "euclid-finance",
         "euler",
         "everrise",
         "exactly",
diff --git a/src/adapters/euclid-finance/ethereum/balance.ts b/src/adapters/euclid-finance/ethereum/balance.ts
new file mode 100644
index 000000000..1a3c68da8
--- /dev/null
+++ b/src/adapters/euclid-finance/ethereum/balance.ts
@@ -0,0 +1,37 @@
+import type { Balance, BalancesContext, Contract } from '@lib/adapter'
+import { call } from '@lib/call'
+import { abi as erc20Abi } from '@lib/erc20'
+import { parseEther } from 'viem'
+const abi = {
+  elETHPrice: {
+    inputs: [],
+    name: 'elETHPrice',
+    outputs: [{ internalType: 'uint256', name: '', type: 'uint256' }],
+    stateMutability: 'view',
+    type: 'function',
+  },
+} as const
+
+const oracle: `0x${string}` = '0x0d7fD234d543A04CADEDa3Fc58dF524656707faC'
+
+const WETH: Contract = {
+  chain: 'ethereum',
+  address: '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2',
+  decimals: 18,
+  symbol: 'WETH',
+}
+
+export async function getEuclidBalance(ctx: BalancesContext, elETH: Contract): Promise<Balance> {
+  const [userDeposit, exchangeRate] = await Promise.all([
+    call({ ctx, target: elETH.address, params: [ctx.address], abi: erc20Abi.balanceOf }),
+    call({ ctx, target: oracle, abi: abi.elETHPrice }),
+  ])
+
+  return {
+    ...elETH,
+    amount: userDeposit,
+    underlyings: [{ ...WETH, amount: (userDeposit * exchangeRate) / parseEther('1.0') }],
+    rewards: undefined,
+    category: 'stake',
+  }
+}
diff --git a/src/adapters/euclid-finance/ethereum/index.ts b/src/adapters/euclid-finance/ethereum/index.ts
new file mode 100644
index 000000000..4cbd5a5ad
--- /dev/null
+++ b/src/adapters/euclid-finance/ethereum/index.ts
@@ -0,0 +1,31 @@
+import { getEuclidBalance } from '@adapters/euclid-finance/ethereum/balance'
+import type { AdapterConfig, Contract, GetBalancesHandler } from '@lib/adapter'
+import { resolveBalances } from '@lib/balance'
+
+const elETH: Contract = {
+  chain: 'ethereum',
+  address: '0xa1aeea28896f18ba85715ce9367f3689925ed428',
+  decimals: 18,
+  symbol: 'elETH',
+  underlyings: ['0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2'],
+}
+
+export const getContracts = () => {
+  return {
+    contracts: { elETH },
+  }
+}
+
+export const getBalances: GetBalancesHandler<typeof getContracts> = async (ctx, contracts) => {
+  const balances = await resolveBalances<typeof getContracts>(ctx, contracts, {
+    elETH: getEuclidBalance,
+  })
+
+  return {
+    groups: [{ balances }],
+  }
+}
+
+export const config: AdapterConfig = {
+  startDate: 1707091200,
+}
diff --git a/src/adapters/euclid-finance/index.ts b/src/adapters/euclid-finance/index.ts
new file mode 100644
index 000000000..593032db2
--- /dev/null
+++ b/src/adapters/euclid-finance/index.ts
@@ -0,0 +1,10 @@
+import type { Adapter } from '@lib/adapter'
+
+import * as ethereum from './ethereum'
+
+const adapter: Adapter = {
+  id: 'euclid-finance',
+  ethereum: ethereum,
+}
+
+export default adapter
diff --git a/src/adapters/index.ts b/src/adapters/index.ts
index 4b470b870..e92b65b69 100644
--- a/src/adapters/index.ts
+++ b/src/adapters/index.ts
@@ -114,6 +114,7 @@ import equilibria from '@adapters/equilibria'
 import ethena from '@adapters/ethena'
 import etherFi from '@adapters/ether.fi'
 import ethosReserve from '@adapters/ethos-reserve'
+import euclidFinance from '@adapters/euclid-finance'
 import euler from '@adapters/euler'
 import everrise from '@adapters/everrise'
 import exactly from '@adapters/exactly'
@@ -544,6 +545,7 @@ export const adapters: Adapter[] = [
   ethena,
   etherFi,
   ethosReserve,
+  euclidFinance,
   euler,
   everrise,
   exactly,