Add Exponent TVL (#13339)

Co-authored-by: g1nt0ki <99907941+g1nt0ki@users.noreply.github.com>

projects/exponent/idl.json

@@ -0,0 +1,88 @@
+{
+  "address": "ExponentnaRg3CQbW6dqQNZKXp7gtZ9DGMp1cwC4HAS7",
+  "metadata": {"name": "exponent_core", "version": "0.1.0", "spec": "0.1.0", "description": "Created with Anchor"},
+  "instructions": [],
+  "accounts": [{"name": "Vault", "discriminator": [211, 8, 232, 43, 2, 152, 117, 119]}],
+  "events": [],
+  "errors": [],
+  "types": [
+    {
+      "name": "Vault",
+      "type": {
+        "kind": "struct",
+        "fields": [
+          {"name": "sy_program", "docs": ["Link to SY program"], "type": "pubkey"},
+          {"name": "mint_sy", "docs": ["Mint for SY token"], "type": "pubkey"},
+          {"name": "mint_yt", "docs": ["Mint for the vault-specific YT token"], "type": "pubkey"},
+          {"name": "mint_pt", "docs": ["Mint for the vault-specific PT token"], "type": "pubkey"},
+          {"name": "escrow_yt", "docs": ["Escrow account for holding deposited YT"], "type": "pubkey"},
+          {
+            "name": "escrow_sy",
+            "docs": ["Escrow account that holds temporary SY tokens", "As an interchange between users and the SY program"],
+            "type": "pubkey"
+          },
+          {
+            "name": "yield_position",
+            "docs": ["Link to a vault-owned YT position", "This account collects yield from all unstaked YT"],
+            "type": "pubkey"
+          },
+          {"name": "address_lookup_table", "docs": ["Address lookup table key for vault"], "type": "pubkey"},
+          {"name": "start_ts", "docs": ["start timestamp"], "type": "u32"},
+          {"name": "duration", "docs": ["seconds duration"], "type": "u32"},
+          {"name": "signer_seed", "docs": ["Seed for CPI signing"], "type": "pubkey"},
+          {"name": "authority", "docs": ["Authority for CPI signing"], "type": "pubkey"},
+          {"name": "signer_bump", "docs": ["bump for signer authority PDA"], "type": {"array": ["u8", 1]}},
+          {
+            "name": "last_seen_sy_exchange_rate",
+            "docs": [
+              "Last seen SY exchange rate",
+              "Not needed for live use, but only when the vault has matured, and we need to freeze earnings for YT holders",
+              "This will not get updated after vault is mautured"
+            ],
+            "type": {"defined": {"name": "Number"}}
+          },
+          {
+            "name": "all_time_high_sy_exchange_rate",
+            "docs": ["This is the all time high exchange rate for SY"],
+            "type": {"defined": {"name": "Number"}}
+          },
+          {
+            "name": "final_sy_exchange_rate",
+            "docs": ["This is the exchange rate for SY when the vault expires"],
+            "type": {"defined": {"name": "Number"}}
+          },
+          {"name": "total_sy_in_escrow", "docs": ["How much SY is held in escrow"], "type": "u64"},
+          {
+            "name": "sy_for_pt",
+            "docs": [
+              "The total SY set aside to back the PT holders",
+              "This value is updated on every operation that touches the PT supply or the last seen exchange rate"
+            ],
+            "type": "u64"
+          },
+          {"name": "pt_supply", "docs": ["Total supply of PT"], "type": "u64"},
+          {"name": "treasury_sy", "docs": ["Amount of SY staged for the treasury"], "type": "u64"},
+          {"name": "uncollected_sy", "docs": ["SY that has been earned by YT, but not yet collected"], "type": "u64"},
+          {
+            "name": "treasury_sy_token_account",
+            "docs": [
+              "SY that has been staged for collection, but not yet collected",
+              "It is strictly greater-than-or-equal to the treasury_sy",
+              "And strictly less than or equal to the total_sy_in_escrow"
+            ],
+            "type": "pubkey"
+          },
+          {"name": "interest_bps_fee", "type": "u16"},
+          {"name": "min_op_size_strip", "type": "u64"},
+          {"name": "min_op_size_merge", "type": "u64"},
+          {"name": "status", "type": "u8"}
+        ]
+      }
+    },
+    {
+      "name": "Number",
+      "docs": ["High precision number, stored as 4 u64 words in little endian"],
+      "type": {"kind": "struct", "fields": [{"array": ["u64", 4]}]}
+    }
+  ]
+}

projects/exponent/index.js

@@ -0,0 +1,62 @@
+const { getConnection, getProvider } = require("../helper/solana");
+const { PublicKey } = require("@solana/web3.js");
+const { decodeAccount } = require("../helper/utils/solana/layout");
+const { Program } = require("@coral-xyz/anchor");
+
+const { getConfig } = require('../helper/cache')
+const idl = require('./idl.json')
+
+
+async function tvl(api) {
+  const provider = getProvider()
+  const connection = getConnection()
+  
+  const program = new Program(idl, provider)
+  const vaults = await program.account.vault.all()
+  
+  const mintRateMap = {}
+  const mintAccountMap = {}
+  
+  vaults.forEach(v => {
+    const rate = v.account.lastSeenSyExchangeRate[0][0].toString() / 1e12
+    if (rate > 0)
+      mintRateMap[v.account.mintSy.toString()] = v.account.lastSeenSyExchangeRate[0][0].toString() / 1e12
+  })
+
+  // Fetch mint accounts
+  const mintPubkeys = Object.keys(mintRateMap).map(k => new PublicKey(k))
+  const mintAccounts = await connection.getMultipleAccountsInfo(mintPubkeys);
+
+
+  mintAccounts.forEach((a, i) => {
+    mintAccountMap[mintPubkeys[i].toString()] = a
+  })
+  
+  // Fetch Exponent wrapped mints from Exponent API
+  const { data: mints } = await getConfig('exponent', 'https://xpon-json-api-prod-650968662509.europe-west3.run.app/api/lyt-growth/standard-yield-tokens');
+  
+
+  for (let i = 0; i < mints.length; i++) {
+    const { mintSy, mintUnderlying} = mints[i]
+    const mintAccount = mintAccountMap[mintSy]
+    const mintRate = mintRateMap[mintSy]
+    if (!mintAccount || !mintRate) continue;
+
+    // Decode mint data
+    const decodedMint = decodeAccount('mint', mintAccount);
+    const supply = decodedMint.supply;
+
+    // As all of the Exponent wrapped tokens are yield bearing tokens, mutiply their supply by their redemption rate to get the base asset amount
+    const amount = supply * mintRate;
+
+    // Add to balances using the base asset price * the converted amount of base tokens
+    api.add(mintUnderlying, amount);
+  }
+}
+
+module.exports = {
+  timetravel: false,
+  methodology: "TVL is calculated by summing the total supply of each Exponent wrapped Yield bearing token and multiplying their base asset amount by the price of the underlying token",
+  solana: { tvl },
+};
+

utils/formatIdl.js

@@ -34,6 +34,12 @@ function checkType(typeObj) {
 
   if (typeObj.type.kind !== 'struct') return;
   typeObj.type.fields.forEach(f => {
+    const isVec = f.type?.vec?.defined?.name
+    if (isVec) {
+      checkType(typeMap[isVec])
+      return;
+    }
+
     if (typeof f.type === 'object') {
       const tName = f.type.defined?.name
       if (tName && typeMap[tName]) checkType(typeMap[tName])