expose cde utils get cardano delegation function

PaimaStudios · Oct 31, 2023 · 9b76490 · 9b76490
1 parent a1831ef
commit 9b76490
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diff --git a/packages/paima-sdk/paima-utils-backend/src/cde-access-internals.ts b/packages/paima-sdk/paima-utils-backend/src/cde-access-internals.ts
@@ -12,6 +12,7 @@ import {
   cdeGenericGetRangeData,
   cdeErc6551GetOwnedAccounts,
   cdeErc6551GetOwner,
+  cdeCardanoPoolGetAddressDelegation,
 } from '@paima/db';
 import type { OwnedNftsResponse, GenericCdeDataUnit, TokenIdPair } from './types';
 
@@ -177,3 +178,15 @@ export async function internalGetAllOwnedErc6551Accounts(
   );
   return results.map(row => row.account_created);
 }
+
+export async function internalGetCardanoAddressDelegation(
+  readonlyDBConn: Pool,
+  address: string
+): Promise<string | null> {
+  const results = await cdeCardanoPoolGetAddressDelegation.run({ address }, readonlyDBConn);
+  if (results.length === 0) {
+    return null;
+  }
+
+  return results[0].pool;
+}
diff --git a/packages/paima-sdk/paima-utils-backend/src/cde-access.ts b/packages/paima-sdk/paima-utils-backend/src/cde-access.ts
@@ -12,6 +12,7 @@ import {
   internalGetGenericDataBlockheightRange,
   internalGetErc6551AccountOwner,
   internalGetAllOwnedErc6551Accounts,
+  internalGetCardanoAddressDelegation,
 } from './cde-access-internals';
 import type { OwnedNftsResponse, GenericCdeDataUnit, TokenIdPair } from './types';
 
@@ -156,3 +157,13 @@ export async function getAllOwnedErc6551Accounts(
   if (cdeId === null) return [];
   return await internalGetAllOwnedErc6551Accounts(readonlyDBConn, cdeId, nft);
 }
+
+/**
+ * Fetch the pool this address is delegating to, if any.
+ */
+export async function getCardanoAddressDelegation(
+  readonlyDBConn: Pool,
+  address: string
+): Promise<string | null> {
+  return await internalGetCardanoAddressDelegation(readonlyDBConn, address);
+}