Create page: Home

src/app/notes/page.tsx

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+import React, { useState } from 'react';
+import Sidebar from '@/components/Sidebar';
+import NoteList from '@/components/NoteList';
+import AddNoteButton from '@/components/AddNoteButton';
+import Modal from '@/components/Modal';
+import NoteForm from '@/components/NoteForm';
+
+function NotesPage() {
+    const [notes, setNotes] = useState([]);
+    const [isModalOpen, setIsModalOpen] = useState(false);
+
+    const handleAddNote = (title: string, content: string) => {
+        setNotes([...notes, { title, date: new Date().toLocaleDateString() }]);
+        setIsModalOpen(false);
+    };
+
+    return (
+        <div className="flex">
+            <Sidebar activeItem="notes" />
+
+            <div className="flex-1 p-10">
+                <h1 className="text-4xl font-bold mb-6">Notes</h1>
+                <div className="bg-white shadow-md rounded p-6">
+                    <NoteList notes={notes} />
+                    <AddNoteButton onClick={() => setIsModalOpen(true)} />
+                </div>
+            </div>
+
+            <Modal isOpen={isModalOpen} onClose={() => setIsModalOpen(false)}>
+                <NoteForm onSubmit={handleAddNote} />
+            </Modal>
+        </div>
+    );
+}
+
+export default NotesPage;

src/components/AddNoteButton.tsx

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+import React from 'react';
+
+interface AddNoteButtonProps {
+    onClick: () => void;
+}
+
+function AddNoteButton({ onClick }: AddNoteButtonProps) {
+    return (
+        <button id="addNoteBtn" className="mt-6 bg-gray-200 rounded-full p-3 hover:bg-gray-300 focus:outline-none" onClick={onClick}>
+            <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth="2" d="M12 4v16m8-8H4"></path>
+            </svg>
+        </button>
+    );
+}
+
+export default AddNoteButton;

src/components/Modal.tsx

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+import React, { ReactNode } from 'react';
+
+interface ModalProps {
+    isOpen: boolean;
+    onClose: () => void;
+    children: ReactNode;
+}
+
+function Modal({ isOpen, onClose, children }: ModalProps) {
+    if (!isOpen) return null;
+
+    return (
+        <div className="modal" onClick={onClose}>
+            <div className="modal-content" onClick={(e) => e.stopPropagation()}>
+                <span className="close" onClick={onClose}>&times;</span>
+                {children}
+            </div>
+        </div>
+    );
+}
+
+export default Modal;

src/components/NoteForm.tsx

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+import React, { useState } from 'react';
+
+interface NoteFormProps {
+    onSubmit: (title: string, content: string) => void;
+}
+
+function NoteForm({ onSubmit }: NoteFormProps) {
+    const [title, setTitle] = useState('');
+    const [content, setContent] = useState('');
+
+    const handleSubmit = (event: React.FormEvent) => {
+        event.preventDefault();
+        onSubmit(title, content);
+        setTitle('');
+        setContent('');
+    };
+
+    return (
+        <form id="addNoteForm" onSubmit={handleSubmit}>
+            <div className="mb-4">
+                <label htmlFor="noteTitle" className="block text-gray-700 text-sm font-bold mb-2">Title</label>
+                <input type="text" id="noteTitle" value={title} onChange={(e) => setTitle(e.target.value)} className="shadow appearance-none border rounded w-full py-2 px-3 text-gray-700 leading-tight focus:outline-none focus:shadow-outline" required />
+            </div>
+            <div className="mb-6">
+                <label htmlFor="noteContent" className="block text-gray-700 text-sm font-bold mb-2">Content</label>
+                <textarea id="noteContent" value={content} onChange={(e) => setContent(e.target.value)} className="shadow appearance-none border rounded w-full py-2 px-3 text-gray-700 leading-tight focus:outline-none focus:shadow-outline" rows="4" required></textarea>
+            </div>
+            <div className="flex items-center justify-between">
+                <button className="bg-blue-500 hover:bg-blue-700 text-white font-bold py-2 px-4 rounded focus:outline-none focus:shadow-outline" type="submit">
+                    Add Note
+                </button>
+            </div>
+        </form>
+    );
+}
+
+export default NoteForm;

src/components/NoteItem.tsx

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+import React from 'react';
+
+interface NoteItemProps {
+    title: string;
+    date: string;
+}
+
+function NoteItem({ title, date }: NoteItemProps) {
+    return (
+        <div className="flex justify-between items-center py-3 cursor-pointer">
+            <div className="text-lg">{title}</div>
+            <div className="text-sm text-gray-500">{date}</div>
+        </div>
+    );
+}
+
+export default NoteItem;

src/components/NoteList.tsx

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+import React from 'react';
+import NoteItem from '@/components/NoteItem';
+
+interface Note {
+    title: string;
+    date: string;
+}
+
+interface NoteListProps {
+    notes: Note[];
+}
+
+function NoteList({ notes }: NoteListProps) {
+    return (
+        <div id="notesList" className="divide-y-2 divide-gray-100">
+            {notes.map((note, index) => (
+                <NoteItem key={index} title={note.title} date={note.date} />
+            ))}
+        </div>
+    );
+}
+
+export default NoteList;

src/components/Sidebar.tsx

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+import React from 'react';
+import Link from 'next/link';
+
+interface SidebarProps {
+    activeItem: string;
+}
+
+function Sidebar({ activeItem }: SidebarProps) {
+    return (
+        <div className="w-64 h-screen bg-white shadow-md">
+            <div className="flex items-center justify-center h-20 border-b">
+                <div className="rounded-full border-2 border-gray-300 w-12 h-12 flex items-center justify-center">
+                    {/* User's initial, could be dynamically generated */}
+                    O
+                </div>
+                <span className="ml-4 font-semibold">Gram Liu</span>
+            </div>
+            <div className="py-4">
+                {/* Menu Items */}
+                <Link href="/" passHref><a className={`menu-item block py-2.5 px-4 hover:bg-gray-200 ${activeItem === 'home' ? 'active' : ''}`}>Home</a></Link>
+                <Link href="/physics" passHref><a className={`menu-item block py-2.5 px-4 hover:bg-gray-200 ${activeItem === 'physics' ? 'active' : ''}`}>Physics</a></Link>
+                <Link href="/chemistry" passHref><a className={`menu-item block py-2.5 px-4 hover:bg-gray-200 ${activeItem === 'chemistry' ? 'active' : ''}`}>Chemistry</a></Link>
+            </div>
+        </div>
+    );
+}
+
+export default Sidebar;