feat: kandel reverve balance

.changeset/mighty-glasses-cover.md

@@ -0,0 +1,5 @@
+---
+"@mangrovedao/mgv": patch
+---
+
+Added base and quote reserve to kandel view function

src/actions/kandel/view.ts

@@ -16,6 +16,7 @@ import {
   offeredVolumeParams,
   provisionOfParams,
   quoteParams,
+  reserveBalanceParams,
   tickSpacingParams,
 } from '../../builder/kandel/view.js'
 import {
@@ -59,6 +60,8 @@ export type GetKandelStateResult = {
   pricePoints: number
   quoteAmount: bigint
   baseAmount: bigint
+  reserveBalanceQuote: bigint
+  reserveBalanceBase: bigint
   unlockedProvision: bigint
   totalProvision: bigint
   kandelStatus: KandelStatus
@@ -77,6 +80,8 @@ type KandelInitCallResult = {
   }
   baseAmount: bigint
   quoteAmount: bigint
+  reserveBalanceQuote: bigint
+  reserveBalanceBase: bigint
   unlockedProvision: bigint
   // mid price from the book
   midPrice: number
@@ -99,6 +104,8 @@ async function kandelInitCall(
     params,
     _quoteAmount,
     _baseAmount,
+    _reserveBalanceQuote,
+    _reserveBalanceBase,
     _base,
     _quote,
     _tickSpacing,
@@ -140,6 +147,14 @@ async function kandelInitCall(
         address: kandel,
         ...offeredVolumeParams(BA.asks),
       },
+      {
+        address: kandel,
+        ...reserveBalanceParams(BA.bids),
+      },
+      {
+        address: kandel,
+        ...reserveBalanceParams(BA.asks),
+      },
       {
         address: kandel,
         ...baseParams,
@@ -187,6 +202,10 @@ async function kandelInitCall(
   const baseAmount = _baseAmount.status === 'success' ? _baseAmount.result : 0n
   const quoteAmount =
     _quoteAmount.status === 'success' ? _quoteAmount.result : 0n
+  const reserveBalanceQuote =
+    _reserveBalanceQuote.status === 'success' ? _reserveBalanceQuote.result : 0n
+  const reserveBalanceBase =
+    _reserveBalanceBase.status === 'success' ? _reserveBalanceBase.result : 0n
 
   const asks =
     bestAsk.status === 'success'
@@ -231,6 +250,8 @@ async function kandelInitCall(
         : { gasprice: 0, gasreq: 0, stepSize: 0, pricePoints: 0 },
     baseAmount: reversed ? quoteAmount : baseAmount,
     quoteAmount: reversed ? baseAmount : quoteAmount,
+    reserveBalanceQuote: reversed ? reserveBalanceBase : reserveBalanceQuote,
+    reserveBalanceBase: reversed ? reserveBalanceQuote : reserveBalanceBase,
     reversed,
     unlockedProvision:
       unlockedProvision.status === 'success' ? unlockedProvision.result : 0n,

src/builder/kandel/view.ts

@@ -12,6 +12,7 @@ export const viewKandelABI = parseAbi([
   olKeyABIRaw,
   'function baseQuoteTickOffset() public view returns (uint)',
   'function params() public view returns (Params memory)',
+  'function reserveBalance(uint8 ba) public view returns (uint balance)',
   'function offeredVolume(uint8 ba) public view returns (uint volume)',
   'function getOffer(uint8 ba, uint index) public view returns (uint offer)',
   'function offerIdOfIndex(uint8 ba, uint index) public view returns (uint offerId)',
@@ -69,6 +70,17 @@ function parseBA(ba: BA) {
   return ba === BA.bids ? 0 : 1
 }
 
+export function reserveBalanceParams(ba: BA) {
+  return {
+    abi: viewKandelABI,
+    functionName: 'reserveBalance',
+    args: [parseBA(ba)],
+  } satisfies Omit<
+    ContractFunctionParameters<typeof viewKandelABI, 'view', 'reserveBalance'>,
+    'address'
+  >
+}
+
 export function offeredVolumeParams(ba: BA) {
   return {
     abi: viewKandelABI,