show fav count in navbar

src/components/Navbar.js

@@ -14,7 +14,7 @@ import MenuIcon from "@mui/icons-material/Menu";
 import SearchIcon from "@mui/icons-material/Search";
 import AccountCircle from "@mui/icons-material/AccountCircle";
 import ShoppingCart from "@mui/icons-material/ShoppingCart";
-import { UserContext } from "@/pages/_app";
+import { UserContext, WishlistContext } from "@/pages/_app";
 import Link from "next/link";
 import { Favorite } from "@mui/icons-material";
 import { Logout, SupervisedUserCircle } from "@mui/icons-material";
@@ -63,12 +63,12 @@ const StyledInputBase = styled(InputBase)(({ theme }) => ({
 function Navbar(props) {
   const router = useRouter();
   const [search, setSearch] = React.useState(router.query?.q ?? "");
+  const wishlist = useContext(WishlistContext);
 
   const user = useContext(UserContext);
   const { window } = props;
   const [anchorEl, setAnchorEl] = React.useState(null);
   const [mobileMoreAnchorEl, setMobileMoreAnchorEl] = React.useState(null);
-  const [mobileOpen, setMobileOpen] = React.useState(false);
   const isMenuOpen = Boolean(anchorEl);
   const isMobileMenuOpen = Boolean(mobileMoreAnchorEl);
 
@@ -124,7 +124,7 @@ function Navbar(props) {
               aria-label="show 4 new mails"
               color="inherit"
             >
-              <Badge badgeContent={4} color="error">
+              <Badge badgeContent={wishlist.value.length} color="error">
                 <Favorite />
               </Badge>
             </IconButton>

src/components/PopupAlert.js

+import React from "react";
+import { Snackbar, Alert } from "@mui/material";
+
+export default function PopupAlert({
+  open = false,
+  message = "",
+  isError = false,
+}) {
+  return (
+    <Snackbar
+      anchorOrigin={{ horizontal: "center", vertical: "top" }}
+      open={open}
+    >
+      <Alert severity={isError ? "error" : "success"}>{message}</Alert>
+    </Snackbar>
+  );
+}

src/pages/_app.js

@@ -9,14 +9,24 @@ import userCookie from "@/components/lib/userCookie";
 import AdminLayout from "@/components/layout/AdminLayout";
 import { usePathname } from "next/navigation";
 import Error from "./_error";
+import axios from "axios";
 // axios.defaults.baseURL = ""
 
 export const UserContext = createContext(null);
+export const WishlistContext = createContext(null);
 
 export default function App({ Component, pageProps }) {
   const [user, setUser] = useState({});
+  const [wishlist, setWishlist] = useState([]);
   const pathname = usePathname();
 
+  const fetchWishlist = async () => {
+    if (!user?.token) return;
+    let response = await axios.get("/api/u/wishlist", {
+      headers: { token: user.token },
+    });
+    setWishlist(response.data.wishlists);
+  };
   useEffect(() => {
     const usrcookie = new userCookie();
     let token = usrcookie.token.split(".")[1];
@@ -29,8 +39,13 @@ export default function App({ Component, pageProps }) {
     }
   }, []);
 
+  useEffect(() => {
+    fetchWishlist();
+  }, [user]);
+
   return (
     <UserContext.Provider value={{ value: user, set: setUser }}>
+      <WishlistContext.Provider value={{ value: wishlist, set: setWishlist }}>
         {pathname.split("/")[1] === "admin" ? (
           <>
             {user.rank ? (
@@ -48,6 +63,7 @@ export default function App({ Component, pageProps }) {
             <Component {...pageProps} />
           </UserLayout>
         )}
+      </WishlistContext.Provider>
     </UserContext.Provider>
   );
 }

src/pages/index.js

@@ -4,7 +4,8 @@ import Head from "next/head";
 import { useContext, useEffect, useState } from "react";
 import ProductCard from "@/components/ProductCard";
 import { useRouter } from "next/router";
-import { UserContext } from "./_app";
+import { UserContext, WishlistContext } from "./_app";
+import PopupAlert from "@/components/PopupAlert";
 
 const inter = Inter({ subsets: ["latin"] });
 
@@ -12,13 +13,21 @@ export default function Home() {
   const user = useContext(UserContext);
   const router = useRouter();
   const [products, setProducts] = useState([]);
-  const [myWishlisth, setMywishlist] = useState([]);
+  const [message, setMessage] = useState({ message: "", error: false });
+  const wishlist = useContext(WishlistContext);
 
   const productsFilter = !!router.query?.q
     ? products.filter((prod) => String(prod.name).includes(router.query.q))
     : products.filter((prod) => Number(prod.stock) > 0);
 
   async function onWishlist(id, isRemove = false) {
+    if (!user.value?.token) {
+      setMessage({ message: "คุณยังไม่ได้เข้าสู่ระบบ", error: true });
+      setTimeout(() => {
+        setMessage({ message: "", error: false });
+      }, 2000);
+      return;
+    }
     if (isRemove) {
     } else {
       let response = await axios.post(
@@ -28,7 +37,7 @@ export default function Home() {
       );
       console.log(response.data);
     }
-  FetchWishlist()
+    FetchWishlist();
   }
 
   const FetchProduct = async () => {
@@ -41,28 +50,29 @@ export default function Home() {
     let response = await axios.get("/api/u/wishlist", {
       headers: { token: user.value.token },
     });
-    setMywishlist(response.data.wishlists);
+    wishlist.set(response.data.wishlists);
   };
 
   useEffect(() => {
     FetchProduct();
-    FetchWishlist();
-
-    console.log(myWishlisth);
-    console.log();
   }, [user]);
   return (
     <>
       <Head>
         <title>OpenShop</title>
       </Head>
+      <PopupAlert
+        open={!!message.message.length}
+        isError={message.error}
+        message={message.message}
+      />
       <div>
         <div className="mx-auto text-left grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-3 2xl:grid-cols-4 max-w-[1520px]">
           {productsFilter.map((prod, idx) => (
             <ProductCard
               key={idx}
               isFav={
-                !!myWishlisth.filter(
+                !!wishlist.value.filter(
                   (wish) => wish.product_id === Number(prod.id)
                 ).length
               }
@@ -70,7 +80,7 @@ export default function Home() {
               favHandler={() =>
                 onWishlist(
                   prod.id,
-                  !!myWishlisth.filter(
+                  !!wishlist.value.filter(
                     (wish) => wish.product_id === Number(prod.id)
                   ).length
                 )