feat: get oracle price util (#214)

Author: palace22

.changeset/early-items-perform.md

@@ -0,0 +1,5 @@
+---
+"@folks-finance/xchain-sdk": patch
+---
+
+Added get oracle price util

.changeset/sharp-ladybugs-study.md

@@ -0,0 +1,5 @@
+---
+"@folks-finance/xchain-sdk": patch
+---
+
+Refactored get oracle prices to accept an array

src/chains/evm/hub/modules/folks-hub-oracle.ts

@@ -5,10 +5,19 @@ import { getOracleManagerContract } from "../utils/contract.js";
 
 import type { NetworkType } from "../../../../common/types/chain.js";
 import type { OracleManagerAbi } from "../constants/abi/oracle-manager-abi.js";
-import type { OraclePrices } from "../types/oracle.js";
+import type { OraclePrice, OraclePrices } from "../types/oracle.js";
 import type { HubTokenData } from "../types/token.js";
 import type { Client, ContractFunctionParameters, ReadContractReturnType } from "viem";
 
+export async function getOraclePrice(provider: Client, network: NetworkType, poolId: number): Promise<OraclePrice> {
+  const hubChain = getHubChain(network);
+
+  const oracleManager = getOracleManagerContract(provider, hubChain.oracleManagerAddress);
+
+  const { price, decimals } = await oracleManager.read.processPriceFeed([poolId]);
+  return { price: [price, 18], decimals };
+}
+
 export async function getOraclePrices(
   provider: Client,
   network: NetworkType,

src/index.ts

@@ -24,7 +24,7 @@ export { getSupportedMessageAdapters } from "./common/utils/adapter.js";
 export { convertFromGenericAddress, convertToGenericAddress } from "./common/utils/address.js";
 export { buildAccountId, buildLoanId } from "./common/utils/lending.js";
 export { getAdapterAddress } from "./common/utils/chain.js";
-export { toFAmount, toUnderlyingAmount } from "./common/utils/formulae.js";
+export { toFAmount, toUnderlyingAmount, calcAssetDollarValue } from "./common/utils/formulae.js";
 export { getCcipData, getWormholeData } from "./common/utils/gmp.js";
 export { getOperationIdsByTransaction, waitOperationIds } from "./common/utils/messages.js";
 export { waitTransaction } from "./common/utils/transaction.js";

src/xchain/modules/folks-oracle.ts

@@ -1,14 +1,25 @@
 import { FolksHubOracle } from "../../chains/evm/hub/modules/index.js";
-import { getHubTokensData } from "../../chains/evm/hub/utils/chain.js";
+import { getHubTokenData, getHubTokensData } from "../../chains/evm/hub/utils/chain.js";
 import { FolksCore } from "../core/folks-core.js";
 
-import type { OraclePrices } from "../../chains/evm/hub/types/oracle.js";
+import type { OraclePrice, OraclePrices } from "../../chains/evm/hub/types/oracle.js";
+import type { FolksTokenId } from "../../common/types/token.js";
 
 export const read = {
-  async oraclePrices(): Promise<OraclePrices> {
+  async oraclePrice(folksTokenId: FolksTokenId): Promise<OraclePrice> {
     const network = FolksCore.getSelectedNetwork();
 
-    const tokensData = Object.values(getHubTokensData(network));
+    const { poolId } = getHubTokenData(folksTokenId, network);
+
+    return await FolksHubOracle.getOraclePrice(FolksCore.getHubProvider(), network, poolId);
+  },
+
+  async oraclePrices(folksTokenIds?: Array<FolksTokenId>): Promise<OraclePrices> {
+    const network = FolksCore.getSelectedNetwork();
+
+    const tokensData = folksTokenIds
+      ? folksTokenIds.map((folksTokenId) => getHubTokenData(folksTokenId, network))
+      : Object.values(getHubTokensData(network));
 
     return FolksHubOracle.getOraclePrices(FolksCore.getHubProvider(), network, tokensData);
   },