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fixed the error #75

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fixed the error #75

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39 changes: 39 additions & 0 deletions Backend/Theme.jsx
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Original file line number Diff line number Diff line change
@@ -0,0 +1,39 @@
import { useEffect, useState } from "react";
import { Sun, Moon } from "lucide-react";

export default function ThemeToggle() {
const [isDark, setIsDark] = useState(() => {
const savedTheme = localStorage.getItem("theme");
if (savedTheme === "dark") return true;
if (savedTheme === "light") return false;

// No saved preference — fallback to OS setting
return window.matchMedia("(prefers-color-scheme: dark)").matches;
});

useEffect(() => {
const root = window.document.documentElement;

if (isDark) {
root.classList.add("dark");
localStorage.setItem("theme", "dark");
} else {
root.classList.remove("dark");
localStorage.setItem("theme", "light");
}
}, [isDark]);

return (
<button
onClick={() => setIsDark((prev) => !prev)}
className="p-2 rounded-full bg-gray-200 dark:bg-gray-700 hover:bg-gray-300 dark:hover:bg-gray-600 transition"
aria-label="Toggle light/dark mode"
>
{isDark ? (
<Sun className="text-yellow-400" />
) : (
<Moon className="text-gray-800" />
)}
</button>
);
}
Comment on lines +1 to +39
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@coderabbitai coderabbitai bot Aug 3, 2025

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🛠️ Refactor suggestion

⚠️ Potential issue

Fix file location and add error handling.

The component implementation is solid, but there are several issues to address:

  1. File location: This Frontend component is incorrectly placed in the Backend folder.
  2. Missing error handling: localStorage access can throw errors in some environments.
  3. Potential SSR issues: Direct window access during initialization could cause hydration mismatches.

Apply these fixes:

// Move file from Backend/Theme.jsx to Frontend/src/components/ThemeToggle.jsx

import { useEffect, useState } from "react";
import { Sun, Moon } from "lucide-react";

export default function ThemeToggle() {
  const [isDark, setIsDark] = useState(() => {
+   try {
      const savedTheme = localStorage.getItem("theme");
      if (savedTheme === "dark") return true;
      if (savedTheme === "light") return false;

      // No saved preference — fallback to OS setting
+     if (typeof window !== "undefined") {
        return window.matchMedia("(prefers-color-scheme: dark)").matches;
+     }
+     return false; // Default for SSR
+   } catch {
+     return false; // Fallback if localStorage fails
+   }
  });

  useEffect(() => {
+   try {
      const root = window.document.documentElement;

      if (isDark) {
        root.classList.add("dark");
        localStorage.setItem("theme", "dark");
      } else {
        root.classList.remove("dark");
        localStorage.setItem("theme", "light");
      }
+   } catch {
+     // Handle localStorage errors gracefully
+   }
  }, [isDark]);
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
import { useEffect, useState } from "react";
import { Sun, Moon } from "lucide-react";
export default function ThemeToggle() {
const [isDark, setIsDark] = useState(() => {
const savedTheme = localStorage.getItem("theme");
if (savedTheme === "dark") return true;
if (savedTheme === "light") return false;
// No saved preference — fallback to OS setting
return window.matchMedia("(prefers-color-scheme: dark)").matches;
});
useEffect(() => {
const root = window.document.documentElement;
if (isDark) {
root.classList.add("dark");
localStorage.setItem("theme", "dark");
} else {
root.classList.remove("dark");
localStorage.setItem("theme", "light");
}
}, [isDark]);
return (
<button
onClick={() => setIsDark((prev) => !prev)}
className="p-2 rounded-full bg-gray-200 dark:bg-gray-700 hover:bg-gray-300 dark:hover:bg-gray-600 transition"
aria-label="Toggle light/dark mode"
>
{isDark ? (
<Sun className="text-yellow-400" />
) : (
<Moon className="text-gray-800" />
)}
</button>
);
}
import { useEffect, useState } from "react";
import { Sun, Moon } from "lucide-react";
export default function ThemeToggle() {
const [isDark, setIsDark] = useState(() => {
try {
const savedTheme = localStorage.getItem("theme");
if (savedTheme === "dark") return true;
if (savedTheme === "light") return false;
// No saved preference — fallback to OS setting
if (typeof window !== "undefined") {
return window.matchMedia("(prefers-color-scheme: dark)").matches;
}
return false; // Default for SSR
} catch {
return false; // Fallback if localStorage fails
}
});
useEffect(() => {
try {
const root = window.document.documentElement;
if (isDark) {
root.classList.add("dark");
localStorage.setItem("theme", "dark");
} else {
root.classList.remove("dark");
localStorage.setItem("theme", "light");
}
} catch {
// Handle localStorage errors gracefully
}
}, [isDark]);
return (
<button
onClick={() => setIsDark((prev) => !prev)}
className="p-2 rounded-full bg-gray-200 dark:bg-gray-700 hover:bg-gray-300 dark:hover:bg-gray-600 transition"
aria-label="Toggle light/dark mode"
>
{isDark ? (
<Sun className="text-yellow-400" />
) : (
<Moon className="text-gray-800" />
)}
</button>
);
}
🤖 Prompt for AI Agents 
In Backend/Theme.jsx lines 1 to 39, move this frontend React component file from
the Backend folder to an appropriate Frontend directory. Wrap all localStorage
accesses in try-catch blocks to safely handle potential errors. Also, avoid
direct window or document access during initial state setup and rendering by
using useEffect to defer these calls until after mounting, preventing SSR
hydration mismatches.

24 changes: 18 additions & 6 deletions Frontend/src/App.jsx
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Original file line number Diff line number Diff line change
Expand Up @@ -6,17 +6,29 @@ import Navbar from "./components/Navbar";
import Verify from "./components/Verify";
import NotFound from "./components/NotFound";
import DarkVeil from "./components/DarkVeil";
import About from './components/About';
import SignUp from './components/SignUp';
import SignIn from './components/SignIn';
import About from "./components/About";
import SignUp from "./components/SignUp";
import SignIn from "./components/SignIn";
import ThemeToggle from "./components/ThemeToggle";
// ...
<header className="flex justify-end p-4">
<ThemeToggle />
</header>;
Comment on lines +14 to +16
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@coderabbitai coderabbitai bot Aug 3, 2025 •
edited
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🛠️ Refactor suggestion

Integrate header within the App component.

The header is currently rendered outside the App component, which creates a disconnected UI structure. Consider integrating it within the main App component for better component hierarchy.

// Remove standalone header
-<header className="flex justify-end p-4">
-  <ThemeToggle />
-</header>;

function App() {
  return (
    <div
      style={{
        position: "relative",
        minHeight: "100vh",
        width: "100vw",
        overflow: "hidden",
      }}
    >
      <div style={{ position: "absolute", inset: 0, zIndex: 0 }}>
        <DarkVeil />
      </div>
      <div style={{ position: "relative", zIndex: 1 }}>
+       <header className="flex justify-end p-4">
+         <ThemeToggle />
+       </header>
        <Router>
          <Navbar />
          // ... rest of component
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
<header className="flex justify-end p-4">
<ThemeToggle />
</header>;
function App() {
return (
<div
style={{
position: "relative",
minHeight: "100vh",
width: "100vw",
overflow: "hidden",
}}
>
<div style={{ position: "absolute", inset: 0, zIndex: 0 }}>
<DarkVeil />
</div>
<div style={{ position: "relative", zIndex: 1 }}>
<header className="flex justify-end p-4">
<ThemeToggle />
</header>
<Router>
<Navbar />
// ... rest of component
</Router>
</div>
</div>
);
}
🤖 Prompt for AI Agents 
In Frontend/src/App.jsx around lines 14 to 16, the header element is rendered
outside the main App component, causing a disconnected UI structure. Move the
header JSX code inside the return statement of the App component so it becomes
part of the component's render output, ensuring proper component hierarchy and
UI integration.

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@Kavyasrigotte Kavyasrigotte Aug 3, 2025

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I will check that

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@coderabbitai coderabbitai bot Aug 3, 2025

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@Kavyasrigotte, sounds good! Feel free to reach out if you need any clarification or run into any issues while implementing the header integration. I'm here to help!

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@Kavyasrigotte Kavyasrigotte Aug 3, 2025

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Thank you

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@coderabbitai coderabbitai bot Aug 3, 2025

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@Kavyasrigotte, you're very welcome! Happy to help. Good luck with the header integration - the theme toggle feature looks great overall! 🎉


function App() {
return (
<div style={{ position: 'relative', minHeight: '100vh', width: '100vw', overflow: 'hidden' }}>
<div style={{ position: 'absolute', inset: 0, zIndex: 0 }}>
<div
style={{
position: "relative",
minHeight: "100vh",
width: "100vw",
overflow: "hidden",
}}
>
<div style={{ position: "absolute", inset: 0, zIndex: 0 }}>
<DarkVeil />
</div>
<div style={{ position: 'relative', zIndex: 1 }}>
<div style={{ position: "relative", zIndex: 1 }}>
<Router>
<Navbar />
<Toaster
Expand Down
5 changes: 3 additions & 2 deletions Frontend/tailwind.config.js → Frontend/tailwind.config.cjs
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Original file line number Diff line number Diff line change
@@ -1,7 +1,8 @@
/** @type {import('tailwindcss').Config} */
import daisyui from "daisyui";
const daisyui = require("daisyui");

export default {
module.exports = {
darkMode: "class",
content: ["./index.html", "./src/**/*.{js,ts,jsx,tsx}"],
theme: {
extend: {
Expand Down