Add: redirect back to where the user was

frontend/src/components/partials/LoginForm.tsx

@@ -1,10 +1,12 @@
-import React, { useState } from "react";
+import { useEffect, useState } from "react";
+import { useNavigate } from "react-router-dom";
 
 import { cn } from "@/lib/utils";
 import { Button } from "@/components/ui/button"
 import { Card, CardContent } from "@/components/ui/card"
 import { Input } from "@/components/ui/input"
 import { Label } from "@/components/ui/label"
+import { CircleAlert } from "lucide-react";
 
 import { login } from "@/services/auth";
 
@@ -17,13 +19,28 @@ export function LoginForm({
     const [username, setUsername] = useState("");
     const [password, setPassword] = useState("");
 
-    const handelSubmit = async (e) => {
+    const navigate = useNavigate();
+    const [loading, setLoading] = useState(false);
+    const [error, setError] = useState<string | null>(null);
+
+
+    const handelLogin = async (e) => {
         e.preventDefault();
         try {
+            setLoading(true)
             await login(username, password);
-            window.location.href = "/";
-        } catch (error) {
-            alert("Login failed!");
+
+            // Get the stored redirect path from localStorage
+            const redirectPath = localStorage.getItem("redirect_after_login") || "/";
+            localStorage.removeItem("redirect_after_login"); // clear the redirect path after use
+
+            // Redirect to the stored path
+            navigate(redirectPath, { replace: true });
+        } catch (err) {
+            setError("Invalid credentials. Please try again.");
+            console.log(err)
+        } finally {
+            setLoading(false);
         }
     };
 
@@ -31,14 +48,18 @@ export function LoginForm({
         <div className={cn("flex flex-col gap-6", className)} {...props}>
             <Card className="overflow-hidden border-2 border-fuchsia-800">
                 <CardContent className="grid p-0 md:grid-cols-2">
-          <form onSubmit={handelSubmit} className="p-6 md:p-8">
+                    <form onSubmit={handelLogin} className="p-6 md:p-8">
                         <div className="flex flex-col gap-6">
                             <div className="flex flex-col items-center text-center">
                                 <h1 className="text-2xl font-bold">Welcome back</h1>
                                 <p className="text-balance text-muted-foreground">
-                  Login to your Gallery Archive account
+                                    Login to your {__SITE_NAME__} account
                                 </p>
                             </div>
+                            {error && <div className="flex flex-row border-2 border-red-600 p-6 bg-red-400 bg-opacity-40 rounded-md">
+                                <CircleAlert />
+                                <p className="ps-4">{error}</p>
+                            </div>}
                             <div className="grid gap-2">
                                 <Label htmlFor="username">Username</Label>
                                 <Input
@@ -68,7 +89,7 @@ export function LoginForm({
                                 />
                             </div>
                             <Button type="submit" className="w-full bg-primary">
-                Login
+                                {loading ? "Logging in..." : "Login"}
                             </Button>
                             {/* <div className="relative text-center text-sm after:absolute after:inset-0 after:top-1/2 after:z-0 after:flex after:items-center after:border-t after:border-border">
                 <span className="relative z-10 bg-background px-2 text-muted-foreground">