From f8db6bfde0f5fd433516fbc79cc5dc64ce19a0a5 Mon Sep 17 00:00:00 2001
From: Justin Starry <justin@solana.com>
Date: Fri, 27 Nov 2020 10:49:09 +0800
Subject: [PATCH] fix: filter disallowed collaterals

---
 src/components/CollateralSelector/index.tsx | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/components/CollateralSelector/index.tsx b/src/components/CollateralSelector/index.tsx
index 78d2bbf..0c6355d 100644
--- a/src/components/CollateralSelector/index.tsx
+++ b/src/components/CollateralSelector/index.tsx
@@ -1,10 +1,11 @@
 import React from "react";
 import { useLendingReserves } from "../../hooks";
-import { LendingReserve } from "../../models";
+import { LendingMarket, LendingReserve } from "../../models";
 import { TokenIcon } from "../TokenIcon";
 import { getTokenName } from "../../utils/utils";
 import { Select } from "antd";
 import { useConnectionConfig } from "../../contexts/connection";
+import { cache, ParsedAccount } from "../../contexts/accounts";
 
 const { Option } = Select;
 
@@ -16,6 +17,13 @@ export const CollateralSelector = (props: {
   const { reserveAccounts } = useLendingReserves();
   const { tokenMap } = useConnectionConfig();
 
+  const market = cache.get(props.reserve.lendingMarket) as ParsedAccount<
+    LendingMarket
+  >;
+  const onlyQuoteAllowed = !props.reserve.liquidityMint.equals(
+    market.info.quoteMint
+  );
+
   return (
     <Select
       size="large"
@@ -34,6 +42,11 @@ export const CollateralSelector = (props: {
     >
       {reserveAccounts
         .filter((reserve) => reserve.info !== props.reserve)
+        .filter(
+          (reserve) =>
+            !onlyQuoteAllowed ||
+            reserve.info.liquidityMint.equals(market.info.quoteMint)
+        )
         .map((reserve) => {
           const mint = reserve.info.liquidityMint.toBase58();
           const address = reserve.pubkey.toBase58();