Initial snapshot - OpenTelemetry demo 2.1.3 -f

1 files changed, 59 insertions, 0 deletions

diff --git a/src/frontend/providers/Currency.provider.tsx b/src/frontend/providers/Currency.provider.tsx
new file mode 100644
index 0000000..1df16ca
--- /dev/null
+++ b/src/frontend/providers/Currency.provider.tsx
@@ -0,0 +1,59 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+import { createContext, useCallback, useContext, useMemo, useState, useEffect } from 'react';
+import { useQuery } from '@tanstack/react-query';
+import ApiGateway from '../gateways/Api.gateway';
+import SessionGateway from '../gateways/Session.gateway';
+
+const { currencyCode } = SessionGateway.getSession();
+
+interface IContext {
+  currencyCodeList: string[];
+  setSelectedCurrency(currency: string): void;
+  selectedCurrency: string;
+}
+
+export const Context = createContext<IContext>({
+  currencyCodeList: [],
+  selectedCurrency: 'USD',
+  setSelectedCurrency: () => ({}),
+});
+
+interface IProps {
+  children: React.ReactNode;
+}
+
+export const useCurrency = () => useContext(Context);
+
+const CurrencyProvider = ({ children }: IProps) => {
+  const { data: currencyCodeListUnsorted = [] } = useQuery({
+    queryKey: ['currency'],
+    queryFn: ApiGateway.getSupportedCurrencyList
+  });
+  const [selectedCurrency, setSelectedCurrency] = useState<string>('');
+
+  useEffect(() => {
+    setSelectedCurrency(currencyCode);
+  }, []);
+
+  const onSelectCurrency = useCallback((currencyCode: string) => {
+    setSelectedCurrency(currencyCode);
+    SessionGateway.setSessionValue('currencyCode', currencyCode);
+  }, []);
+
+  const currencyCodeList = currencyCodeListUnsorted.sort();
+
+  const value = useMemo(
+      () => ({
+        currencyCodeList,
+        selectedCurrency,
+        setSelectedCurrency: onSelectCurrency,
+      }),
+      [currencyCodeList, selectedCurrency, onSelectCurrency]
+  );
+
+  return <Context.Provider value={value}>{children}</Context.Provider>;
+};
+
+export default CurrencyProvider;