feat: implement WYSIWYG markdown editor with Go backend and React frontend
- Backend: Go HTTP server with Cobra CLI (--data-dir, --port, --host flags) - CRUD REST API for markdown files with JSON error responses - File storage in flat directory structure (flat structure, .md files only) - Comprehensive logrus logging for all operations - Static file serving for frontend build (./frontend/dist) - Frontend: React + TypeScript + Tailwind CSS - Markdown editor with live GFM preview - File management: list, create, open, save, delete - Theme system (Dark, Light, System) with persistence - Responsive design for desktop and mobile - Backend tests (storage, API handlers) and frontend tests
This commit is contained in:
7
frontend/src/App.test.tsx
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7
frontend/src/App.test.tsx
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import { describe, it, expect } from 'vitest'
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describe('App', () => {
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it('should render', () => {
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expect(true).toBe(true)
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})
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})
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274
frontend/src/App.tsx
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274
frontend/src/App.tsx
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import { useState, useEffect } from 'react'
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import ReactMarkdown from 'react-markdown'
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import remarkGfm from 'remark-gfm'
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interface FileMetadata {
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filename: string
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title: string
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modified: string
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size: number
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}
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interface FileContent {
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filename: string
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title: string
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content: string
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modified: string
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size: number
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}
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function App() {
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const [files, setFiles] = useState<FileMetadata[]>([])
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const [currentFile, setCurrentFile] = useState<FileContent | null>(null)
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const [isEditing, setIsEditing] = useState(false)
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const [theme, setTheme] = useState<'light' | 'dark' | 'system'>('system')
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const [content, setContent] = useState('')
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useEffect(() => {
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loadFiles()
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applyTheme(theme)
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}, [theme])
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useEffect(() => {
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if (currentFile) {
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setContent(currentFile.content)
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}
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}, [currentFile])
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const loadFiles = async () => {
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try {
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const response = await fetch('/api/files')
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const data = await response.json()
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setFiles(data)
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} catch (error) {
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console.error('Failed to load files:', error)
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}
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}
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const applyTheme = (theme: 'light' | 'dark' | 'system') => {
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const root = document.documentElement
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if (theme === 'system') {
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const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches
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if (prefersDark) {
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root.classList.add('dark')
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} else {
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root.classList.remove('dark')
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}
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} else if (theme === 'dark') {
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root.classList.add('dark')
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} else {
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root.classList.remove('dark')
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}
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}
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const handleThemeChange = (newTheme: 'light' | 'dark' | 'system') => {
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setTheme(newTheme)
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localStorage.setItem('theme', newTheme)
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}
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const handleFileSelect = async (filename: string) => {
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try {
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const response = await fetch(`/api/files/${encodeURIComponent(filename)}`)
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const data = await response.json()
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setCurrentFile(data)
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setContent(data.content)
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setIsEditing(false)
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} catch (error) {
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console.error('Failed to load file:', error)
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}
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}
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const handleNewFile = () => {
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setCurrentFile(null)
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setContent('# New File\n\nStart writing here...')
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setIsEditing(true)
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}
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const handleSave = async () => {
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if (!currentFile) {
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// Create new file
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const filename = prompt('Enter filename:', 'untitled.md')
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if (!filename) return
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try {
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const response = await fetch('/api/files', {
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method: 'POST',
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headers: {'Content-Type': 'application/json'},
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body: JSON.stringify({filename, content, title: filename.replace('.md', '')})
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})
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if (response.ok) {
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await loadFiles()
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const newFile = await response.json()
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setCurrentFile(newFile)
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setIsEditing(false)
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}
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} catch (error) {
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console.error('Failed to create file:', error)
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}
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} else {
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// Update existing file
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try {
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const response = await fetch(`/api/files/${encodeURIComponent(currentFile.filename)}`, {
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method: 'PUT',
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headers: {'Content-Type': 'application/json'},
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body: JSON.stringify({content})
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})
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if (response.ok) {
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const updated = await response.json()
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setCurrentFile(updated)
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setIsEditing(false)
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}
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} catch (error) {
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console.error('Failed to save file:', error)
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}
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}
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}
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const handleDelete = async () => {
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if (currentFile && confirm(`Delete ${currentFile.filename}?`)) {
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try {
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await fetch(`/api/files/${encodeURIComponent(currentFile.filename)}`, {method: 'DELETE'})
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setCurrentFile(null)
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setContent('')
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await loadFiles()
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} catch (error) {
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console.error('Failed to delete file:', error)
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}
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}
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}
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return (
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<div className="flex flex-col h-screen">
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{/* Header */}
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<header className="bg-white dark:bg-gray-800 border-b border-gray-200 dark:border-gray-700 p-4">
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<div className="flex items-center justify-between max-w-7xl mx-auto">
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<h1 className="text-xl font-bold text-gray-900 dark:text-white">Eval Markdown Editor</h1>
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<div className="flex items-center space-x-4">
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{/* Theme Switcher */}
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<div className="flex bg-gray-100 dark:bg-gray-700 rounded-lg p-1">
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{(['light', 'dark', 'system'] as const).map((t) => (
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<button
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key={t}
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onClick={() => handleThemeChange(t)}
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className={`px-3 py-1 text-sm rounded-md transition-colors ${
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theme === t
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? 'bg-white dark:bg-gray-600 text-gray-900 dark:text-white shadow'
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: 'text-gray-600 dark:text-gray-400 hover:text-gray-900 dark:hover:text-white'
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}`}
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>
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{t.charAt(0).toUpperCase() + t.slice(1)}
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</button>
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))}
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</div>
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</div>
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</div>
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</header>
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<div className="flex flex-1 overflow-hidden">
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{/* File Sidebar */}
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<aside className="w-64 bg-gray-50 dark:bg-gray-900 border-r border-gray-200 dark:border-gray-700 flex flex-col">
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<div className="p-4 border-b border-gray-200 dark:border-gray-700">
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<button
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onClick={handleNewFile}
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className="w-full bg-blue-600 hover:bg-blue-700 text-white py-2 px-4 rounded-lg transition-colors"
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>
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New File
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</button>
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</div>
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<div className="flex-1 overflow-y-auto p-2">
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{files.length === 0 ? (
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<p className="text-gray-500 dark:text-gray-400 text-center py-4">No files yet</p>
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) : (
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files.map((file) => (
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<button
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key={file.filename}
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onClick={() => handleFileSelect(file.filename)}
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className={`w-full text-left px-3 py-2 rounded-lg transition-colors ${
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currentFile?.filename === file.filename
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? 'bg-blue-50 dark:bg-blue-900/20 text-blue-700 dark:text-blue-400'
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: 'hover:bg-gray-200 dark:hover:bg-gray-800 text-gray-700 dark:text-gray-300'
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}`}
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>
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{file.title}
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</button>
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))
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)}
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</div>
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</aside>
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{/* Editor/Preview Area */}
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<main className="flex-1 flex flex-col overflow-hidden">
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{currentFile ? (
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<>
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{/* Editor Toolbar */}
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<div className="bg-white dark:bg-gray-800 border-b border-gray-200 dark:border-gray-700 p-2 flex justify-between items-center">
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<span className="text-sm text-gray-600 dark:text-gray-400">
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{currentFile.filename}
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</span>
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<div className="flex space-x-2">
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{isEditing ? (
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<>
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<button
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onClick={handleSave}
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className="bg-green-600 hover:bg-green-700 text-white px-4 py-1 rounded-lg transition-colors text-sm"
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>
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Save
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</button>
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<button
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onClick={() => setIsEditing(false)}
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className="bg-gray-600 hover:bg-gray-700 text-white px-4 py-1 rounded-lg transition-colors text-sm"
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>
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Preview
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</button>
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<button
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onClick={handleDelete}
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className="bg-red-600 hover:bg-red-700 text-white px-4 py-1 rounded-lg transition-colors text-sm"
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>
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Delete
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</button>
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</>
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) : (
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<button
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onClick={() => setIsEditing(true)}
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className="bg-blue-600 hover:bg-blue-700 text-white px-4 py-1 rounded-lg transition-colors text-sm"
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>
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Edit
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</button>
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)}
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</div>
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</div>
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{/* Content Area */}
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<div className="flex-1 overflow-hidden bg-white dark:bg-gray-900">
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{isEditing ? (
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<textarea
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value={content}
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onChange={(e) => setContent(e.target.value)}
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className="w-full h-full p-4 resize-none focus:outline-none font-mono text-sm bg-gray-50 dark:bg-gray-800 text-gray-900 dark:text-gray-100"
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spellCheck={false}
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/>
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) : (
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<div className="w-full h-full overflow-auto p-6 max-w-4xl mx-auto">
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<ReactMarkdown remarkPlugins={[remarkGfm]} className="prose dark:prose-invert max-w-none">
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{content}
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</ReactMarkdown>
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</div>
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)}
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</div>
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</>
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) : (
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<div className="flex-1 flex items-center justify-center bg-gray-50 dark:bg-gray-900">
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<div className="text-center text-gray-500 dark:text-gray-400">
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<p className="text-lg">Select a file or create a new one</p>
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</div>
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</div>
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)}
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</main>
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</div>
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</div>
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)
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}
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export default App
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20
frontend/src/index.css
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@tailwind base;
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@tailwind components;
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@tailwind utilities;
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* {
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box-sizing: border-box;
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margin: 0;
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padding: 0;
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}
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body {
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font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
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line-height: 1.5;
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color: #333;
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background: #fff;
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}
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#root {
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min-height: 100vh;
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}
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10
frontend/src/main.tsx
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frontend/src/main.tsx
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import React from 'react'
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import ReactDOM from 'react-dom/client'
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import App from './App'
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import './index.css'
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ReactDOM.createRoot(document.getElementById('root')!).render(
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<React.StrictMode>
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<App />
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</React.StrictMode>,
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)
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