feat: add useCreditsForToken

src/hooks/useCreditsForToken.ts

@@ -0,0 +1,32 @@
+import { TurboFactory } from "@ardrive/turbo-sdk/web";
+import { useState, useRef, useEffect } from "react";
+import { turboConfig, wincPerCredit } from "../constants";
+
+export function useCreditsForToken(
+  debouncedTokenAmount: string,
+  errorCallback: (message: string) => void,
+): [string | undefined, string | undefined] {
+  const [winc, setWinc] = useState<string | undefined>(undefined);
+  const usdWhenCreditsWereLastUpdatedRef = useRef<string | undefined>(
+    undefined,
+  );
+
+  // Get credits for USD amount when USD amount has stopped debouncing
+  useEffect(() => {
+    TurboFactory.unauthenticated(turboConfig)
+      .getWincForToken({ tokenAmount: debouncedTokenAmount })
+      .then(({ winc }) => {
+        usdWhenCreditsWereLastUpdatedRef.current = debouncedTokenAmount;
+        setWinc(winc);
+      })
+      .catch((err) => {
+        console.error(err);
+        errorCallback(`Error getting credits for USD amount: ${err.message}`);
+      });
+  }, [debouncedTokenAmount, errorCallback]);
+
+  return [
+    winc ? (+winc / wincPerCredit).toString() : undefined,
+    usdWhenCreditsWereLastUpdatedRef.current,
+  ];
+}