Feature/last page exam

app/auth/callback/page.tsx

@@ -14,9 +14,14 @@ function AuthCallbackContent() {
     "loading",
   );
   const [message, setMessage] = useState("");
+  const [isProcessing, setIsProcessing] = useState(false);
 
   useEffect(() => {
     const handleCallback = async () => {
+      // Prevent multiple simultaneous executions
+      if (isProcessing) return;
+      setIsProcessing(true);
+
       try {
         // Check if this is an OAuth callback
         const success = searchParams.get("success");
@@ -67,11 +72,14 @@ function AuthCallbackContent() {
           "An error occurred during authentication. Please try again.",
         );
         setTimeout(() => router.push("/"), 3000);
+      } finally {
+        setIsProcessing(false);
       }
     };
 
     handleCallback();
-  }, [router, searchParams, refreshUser]);
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [searchParams]);
 
   if (status === "loading") {
     return (

components/AuthModal.tsx

@@ -143,23 +143,14 @@ export const AuthModal: React.FC<AuthModalProps> = ({
 
   const handleAppleSignIn = async () => {
     setIsLoading(true);
-    setMessage("Redirecting to Apple..."); // User feedback
     try {
       // Save last used method
       const method = { type: "apple", value: "Apple" };
       setLastUsedMethod(method);
       localStorage.setItem("lastUsedAuthMethod", JSON.stringify(method));
-
-      const result = await signInWithApple();
-
-      if (!result.success && result.error) {
-        setMessage(result.error);
-        setIsLoading(false);
-      }
-      // Note: For Apple OAuth, loading state will be reset when the modal auto-closes
-      // or when the page redirects. Don't reset here for successful redirects.
+      await signInWithApple();
     } catch (error) {
-      setMessage("Failed to sign in with Apple. Please try again.");
+      setMessage("Failed to sign in with Apple");
       setIsLoading(false);
     }
   };

components/Header.tsx

@@ -1,7 +1,6 @@
 "use client";
 
 import React, { useEffect, useState } from "react";
-import HomeButton from "./HomeButton";
 import Image from "next/image";
 import { usePathname, useRouter } from "next/navigation";
 import { useAuth } from "../contexts/AuthContext";
@@ -60,39 +59,21 @@ const Header = () => {
     <header className="sticky top-0 z-40 bg-slate-900/95 backdrop-blur supports-[backdrop-filter]:bg-slate-900/60 border-b border-slate-700">
       <div className="mx-auto max-w-7xl">
         <div className="flex h-16 items-center justify-between px-4 sm:px-6 lg:px-8">
-          {/* Left section - Home button or logo */}
+          {/* Left section - Logo */}
           <div className="flex items-center">
-            {pathname !== "/" ? (
-              <HomeButton
-                handleReturnToMainPage={() => {
-                  router.push("/");
-                }}
-              />
-            ) : (
-              <div className="flex items-center">
-                <Image
-                  src="/logo.svg"
-                  alt="Ditectrev Logo"
-                  className="h-8 w-auto"
-                  height={32}
-                  width={120}
-                />
-              </div>
-            )}
-          </div>
-
-          {/* Center section - Logo on non-home pages */}
-          {pathname !== "/" && (
-            <div className="flex items-center absolute left-1/2 transform -translate-x-1/2 md:relative md:left-auto md:transform-none">
+            <button
+              onClick={() => router.push("/")}
+              className="flex items-center cursor-pointer"
+            >
               <Image
                 src="/logo.svg"
                 alt="Ditectrev Logo"
                 className="h-8 w-auto"
                 height={32}
                 width={120}
               />
-            </div>
-          )}
+            </button>
+          </div>
 
           {/* Right section - Navigation and Auth */}
           <div className="flex items-center space-x-4">

components/QuizForm.tsx

@@ -325,33 +325,46 @@ const QuizForm: FC<Props> = ({
             {isThinking ? "Thinking..." : "Explain"}
           </Button>
         )}
-        <Button
-          type="button"
-          intent="primary"
-          size="medium"
-          disabled={currentQuestionIndex < lastIndex}
-          onClick={() => {
-            if (!showCorrectAnswer) {
-              setSavedAnswers((prev) => ({
-                ...prev,
-                [currentQuestionIndex]: watchInput,
-              }));
-            }
-            setShowCorrectAnswer(false);
-            setExplanation(null);
-            if (currentQuestionIndex === totalQuestions) {
-              handleNextQuestion(1);
-              setLastIndex(1);
-            } else {
-              handleNextQuestion(currentQuestionIndex + 1);
-              setLastIndex(currentQuestionIndex + 1);
-            }
-            setCanGoBack(false);
-            reset();
-          }}
-        >
-          Next Question
-        </Button>
+        {currentQuestionIndex < totalQuestions ? (
+          <Button
+            type="button"
+            intent="primary"
+            size="medium"
+            disabled={currentQuestionIndex < lastIndex}
+            onClick={() => {
+              if (!showCorrectAnswer) {
+                setSavedAnswers((prev) => ({
+                  ...prev,
+                  [currentQuestionIndex]: watchInput,
+                }));
+              }
+              setShowCorrectAnswer(false);
+              setExplanation(null);
+              if (currentQuestionIndex === totalQuestions) {
+                handleNextQuestion(1);
+                setLastIndex(1);
+              } else {
+                handleNextQuestion(currentQuestionIndex + 1);
+                setLastIndex(currentQuestionIndex + 1);
+              }
+              setCanGoBack(false);
+              reset();
+            }}
+          >
+            Next Question
+          </Button>
+        ) : (
+          <Button
+            type="button"
+            intent="primary"
+            size="medium"
+            onClick={() => {
+              window.location.href = "/";
+            }}
+          >
+            Go Home
+          </Button>
+        )}
       </div>
     </form>
   );

package.json

@@ -1,6 +1,6 @@
 {
   "name": "practice-exams-platform",
-  "version": "1.4.3",
+  "version": "1.4.4",
   "private": true,
   "engines": {
     "node": "20.x"

styles/globals.css

@@ -30,41 +30,39 @@ a[target="_blank"]:hover .external-link-icon {
 }
 
 .loading-container {
-    position: fixed;
-    top: 0;
-    left: 0;
-    width: 100%;
-    height: 100%;
-    display: flex;
-    justify-content: center;
-    align-items: center;
-    z-index: 9999;
-  }
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  z-index: 9999;
+}
 
-  .spinner {
-    border: 8px solid rgba(255, 255, 255, 0.3);
-    border-top: 8px solid #1E293B;
-    border-radius: 50%;
-    width: 60px;
-    height: 60px;
-    -webkit-animation: spin 1s linear infinite;
-            animation: spin 1s linear infinite;
+.spinner {
+  border: 8px solid rgba(255, 255, 255, 0.3);
+  border-top: 8px solid #1E293B;
+  border-radius: 50%;
+  width: 60px;
+  height: 60px;
+  -webkit-animation: spin 1s linear infinite;
+          animation: spin 1s linear infinite;
+}
+@-webkit-keyframes spin {
+  0% {
+    transform: rotate(0deg);
   }
-
-  @-webkit-keyframes spin {
-    0% {
-      transform: rotate(0deg);
-    }
-    100% {
-      transform: rotate(360deg);
-    }
+  100% {
+    transform: rotate(360deg);
   }
-
-  @keyframes spin {
-    0% {
-      transform: rotate(0deg);
-    }
-    100% {
-      transform: rotate(360deg);
-    }
+}
+@keyframes spin {
+  0% {
+    transform: rotate(0deg);
   }
+  100% {
+    transform: rotate(360deg);
+  }
+}