move function handle change city to context

context/ProvinceProvider.js

@@ -0,0 +1,27 @@
+"use client";
+
+import { createContext, useContext, useState, useEffect } from "react";
+import citiesData from "@/data/city.json";
+
+const ProvinceContext = createContext();
+
+export const ProvinceProvider = ({ children }) => {
+  const [hostName, setHostName] = useState("");
+  const isProvinceInclude = citiesData.find(
+    (city) => city.domain !== "nobat724.com" && hostName.includes(city.domain)
+  );
+
+  useEffect(() => {
+    if (typeof window !== "undefined") {
+      setHostName(window.location.hostname);
+    }
+  }, []);
+
+  return (
+    <ProvinceContext.Provider value={{ isProvinceInclude }}>
+      {children}
+    </ProvinceContext.Provider>
+  );
+};
+
+export const useProvince = () => useContext(ProvinceContext);