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\n \n \n \n \n `, {\n headers: { \"Content-Type\": \"text/html\" },\n });\n}\n\nconst css = `\n@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;700&display=swap');\n\nbody {\n font-family: 'Roboto', Arial, sans-serif;\n margin: 0;\n padding: 0;\n background-color: #f0f4f8;\n color: #333;\n}\n\n.container {\n max-width: 800px;\n margin: 0 auto;\n padding: 20px;\n}\n\nheader {\n background: linear-gradient(135deg, #6e8efb, #a777e3);\n padding: 20px;\n border-radius: 8px 8px 0 0;\n box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);\n}\n\nh1 {\n color: white;\n margin: 0;\n font-size: 24px;\n text-align: center;\n}\n\nmain {\n background-color: white;\n padding: 20px;\n border-radius: 0 0 8px 8px;\n box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);\n}\n\n.input-field, .textarea-field {\n width: 100%;\n padding: 10px;\n margin-bottom: 15px;\n border: 1px solid #ddd;\n border-radius: 4px;\n font-size: 16px;\n transition: border-color 0.3s ease;\n}\n\n.input-field:focus, .textarea-field:focus {\n outline: none;\n border-color: #6e8efb;\n box-shadow: 0 0 0 2px rgba(110, 142, 251, 0.1);\n}\n\n.textarea-field {\n height: 200px;\n resize: vertical;\n}\n\n.status-indicator {\n font-size: 14px;\n color: #666;\n margin-bottom: 15px;\n}\n\n.source-link {\n text-align: center;\n margin-top: 20px;\n}\n\n.source-link a {\n color: #6e8efb;\n text-decoration: none;\n font-weight: bold;\n transition: color 0.3s ease;\n}\n\n.source-link a:hover {\n color: #a777e3;\n text-decoration: underline;\n}\n\n@keyframes fadeIn {\n from { opacity: 0; }\n to { opacity: 1; }\n}\n\n.container {\n animation: fadeIn 0.5s ease-out;\n}\n`;\n","/** @jsxImportSource https://esm.sh/react */\nimport React, { useCallback, useEffect, useRef, useState } from \"https://esm.sh/react\";\nimport { createRoot } from \"https://esm.sh/react-dom/client\";\nimport { useDebouncedCallback } from \"https://esm.sh/use-debounce\";\n\nfunction App() {\n const [key, setKey] = useState(\"\");\n const [content, setContent] = useState(\"\");\n const [localContent, setLocalContent] = useState(\"\");\n const [lastSaved, setLastSaved] = useState(null);\n const [hasUnsavedChanges, setHasUnsavedChanges] = useState(false);\n const isTyping = useRef(false);\n\n const fetchContent = useCallback(async () => {\n if (!key) return;\n const response = await fetch(`/content?key=${encodeURIComponent(key)}`);\n if (response.ok) {\n const data = await response.json();\n if (!isTyping.current) {\n setContent(data.content);\n setLocalContent(data.content);\n }\n setLastSaved(data.lastModified);\n }\n }, [key]);\n\n useEffect(() => {\n if (key) {\n fetchContent();\n const interval = setInterval(fetchContent, 2000);\n return () => clearInterval(interval);\n }\n }, [key, fetchContent]);\n\n const debouncedSave = useDebouncedCallback(async (newContent) => {\n if (!key) return;\n const response = await fetch(\"/content\", {\n method: \"POST\",\n headers: { \"Content-Type\": \"application/json\" },\n body: JSON.stringify({ key, content: newContent, lastModified: lastSaved }),\n });\n if (response.ok) {\n const data = await response.json();\n setLastSaved(data.lastModified);\n setContent(newContent);\n setHasUnsavedChanges(false);\n } else {\n // Handle conflict\n fetchContent();\n }\n isTyping.current = false;\n }, 1000);\n\n const handleContentChange = (e: any) => {\n const newContent = e.target.value;\n setLocalContent(newContent);\n setHasUnsavedChanges(true);\n isTyping.current = true;\n debouncedSave(newContent);\n };\n\n return (\n

Collaborative Text Box

\n setKey(e.target.value)}\n placeholder=\"Enter a unique key\"\n className=\"input-field\"\n />\n {key && (\n <>\n \n

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Diff · v8