Lombard/BTC.b as several adapter, correct tvl for LBTC and BTC.b, names update (#16971)

Co-authored-by: Andrew Shivalin <[email protected]>

Author: VaitaR

projects/lombard-btcb/index.js

@@ -0,0 +1,39 @@
+const { sumTokens } = require('../helper/chain/bitcoin')
+const bitcoinAddressBook = require('../helper/bitcoin-book/index.js')
+const { sumTokensExport } = require('../helper/unwrapLPs')
+const { getConfig } = require('../helper/cache')
+
+// Lombard protocol design requires mixed wallets for LBTC(/lombard adapter) and BTC.b (/avalanche-btc adapter)
+
+async function tvl(api) {
+  const lombardOwners = await bitcoinAddressBook.lombard()
+  const avalancheOwners = bitcoinAddressBook.avalanche
+  const allOwners = [...lombardOwners, ...avalancheOwners]
+  
+  const balances = await sumTokens({ owners: allOwners, forceCacheUse: true })
+  
+  const data = await getConfig(
+    'lombard-staking-vault', 
+    'https://ledger-mainnet.lombard-fi.com:1317/lombard-finance/ledger/btcstaking/staking_vault_base_balance'
+  )
+  
+  const lbtcBackingInBTC = Number(data.balance) / 1e8
+  
+  if (balances.bitcoin) {
+    balances.bitcoin = balances.bitcoin - lbtcBackingInBTC
+  }
+
+  return balances
+}
+
+module.exports = {
+  doublecounted: true,
+  timetravel: false,
+  isHeavyProtocol: true,
+  bitcoin: { tvl },
+  ethereum: { tvl: sumTokensExport({ owners: ['0x838f0c257ab27856ee9be57f776b186140834b58'], tokens: ['0xfe4ecd930a1282325aef8e946f17c0e25744de45'] })}
+}
+
+module.exports.hallmarks = [
+  [1761782400, 'Lombard has acquired BTC.b'],  //2025-10-30
+]

projects/lombard/index.js

@@ -1,15 +1,35 @@
 const { sumTokens } = require('../helper/chain/bitcoin')
 const bitcoinAddressBook = require('../helper/bitcoin-book/index.js')
 const { sumTokensExport } = require('../helper/unwrapLPs')
+const { getConfig } = require('../helper/cache')
 
-async function tvl() {
-  return sumTokens({ owners: await bitcoinAddressBook.lombard(), forceCacheUse: true })
+// Lombard protocol design requires mixed wallets for LBTC(/lombard adapter) and BTC.b (/avalanche-btc adapter)
+
+async function tvl(api) {
+  const lombardOwners = await bitcoinAddressBook.lombard()
+  const avalancheOwners = bitcoinAddressBook.avalanche
+  const allOwners = [...lombardOwners, ...avalancheOwners]
+  
+  const balances = await sumTokens({ owners: allOwners, forceCacheUse: true })
+  
+  const data = await getConfig(
+    'lombard-staking-vault', 
+    'https://ledger-mainnet.lombard-fi.com:1317/lombard-finance/ledger/btcstaking/staking_vault_base_balance'
+  )
+  
+  const lbtcBackingInBTC = Number(data.balance) / 1e8
+  
+  if (balances.bitcoin) {
+    balances.bitcoin = Math.min(balances.bitcoin, lbtcBackingInBTC)
+  }
+
+  return balances
 }
 
 module.exports = {
-  doublecounted:true,
+  doublecounted: true,
   timetravel: false,
   isHeavyProtocol: true,
   bitcoin: { tvl },
   ethereum: { tvl: sumTokensExport({ owners: ['0x838f0c257ab27856ee9be57f776b186140834b58'], tokens: ['0xfe4ecd930a1282325aef8e946f17c0e25744de45'] })}
-}
+}