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@jsxImportSource https://esm.sh/preact */\nimport { type ClassValue, clsx } from \"https://esm.sh/clsx\";\nimport { Peer } from \"https://esm.sh/peerjs@1.5.4?bundle-deps\";\nimport { render } from \"https://esm.sh/preact\";\nimport { useEffect, useRef, useState } from \"https://esm.sh/preact/hooks\";\n\ninterface NDEFRecord {\n recordType: string;\n mediaType?: string;\n data?: string | BufferSource | NDEFRecord[];\n};\n\ninterface Message {\n sender: string;\n message: string;\n}\n\ninterface RTCFile {\n data: Uint8Array;\n name: string;\n type: string;\n}\n\nenum Accent {\n Pink = \"[#e91e63]\",\n Blue = \"[#2196f3]\",\n Green = \"[#4caf50]\",\n Red = \"[#f44336]\",\n Purple = \"[#9c27b0]\",\n}\n\nfunction getFileEmote(file: RTCFile) {\n const fileType = file.type.split(\"/\")[0];\n switch (fileType) {\n case \"image\":\n return \"🖼️\";\n case \"audio\":\n return \"🎵\";\n case \"video\":\n return \"🎥\";\n case \"application\":\n return \"📄\";\n default:\n return \"📁\";\n }\n}\n\nconst randomAccent = () => {\n const accents = Object.values(Accent);\n return accents[Math.floor(Math.random() * accents.length)];\n}\n\nfunction App() {\n const [showModal, setShowModal] = useState(false);\n const [peerId, setPeerId] = useState(\"\");\n const [textToCopy, setTextToCopy] = useState(\"\");\n const [isCopied, setIsCopied] = useState(false);\n const [files, setFiles] = useState([]);\n const [connectedPeers, setConnectedPeers] = useState({});\n const [targetPeerId, setTargetPeerId] = useState(\"\");\n const [message, setMessage] = useState(\"\");\n const [chatHistory, setChatHistory] = useState([]);\n const [accent, setAccent] = useState(randomAccent());\n const [notification, setNotification] = useState(null);\n const [nfcStatus, setNfcStatus] = useState(\"\");\n const peerRef = useRef(null);\n const [qrcode, setQrcode] = useState(\"\");\n const chatEndRef = useRef(null);\n\n const getUrlParameter = (name) => {\n const urlParams = new URLSearchParams(window.location.search);\n return urlParams.get(name);\n };\n\n const getShareableUrl = () => {\n const currentUrl = new URL(window.location.href);\n currentUrl.searchParams.set(\"peer\", peerId);\n return currentUrl.toString();\n };\n\n useEffect(() => {\n peerRef.current = new Peer();\n\n peerRef.current.on(\"open\", async (id) => {\n setPeerId(id);\n console.log(\"My peer ID is: \" + id);\n\n generateQRCode(id);\n\n const peerParam = getUrlParameter(\"peer\");\n if (peerParam) {\n connectToPeer(peerParam);\n }\n });\n\n peerRef.current.on(\"connection\", (conn) => {\n setupConnection(conn);\n });\n\n return () => {\n if (peerRef.current) {\n peerRef.current.destroy();\n }\n };\n }, []);\n\n useEffect(() => {\n chatEndRef.current?.scrollIntoView({ behavior: \"smooth\" });\n }, [chatHistory]);\n\n const setupConnection = (conn) => {\n conn.on(\"open\", () => {\n setConnectedPeers((prevPeers) => ({ ...prevPeers, [conn.peer]: conn }));\n showNotification(`Connected to peer: ${conn.peer}`);\n });\n\n conn.on(\"data\", (data) => {\n if (typeof data === \"string\") {\n setChatHistory((prev) => [...prev, { sender: conn.peer, message: data }]);\n showNotification(`New message from ${conn.peer}`);\n } else if (data.type === \"file\") {\n setFiles((prevFiles) => [...prevFiles, data.file]);\n showNotification(`Received file: ${data.file.name}`);\n }\n });\n\n conn.on(\"close\", () => {\n setConnectedPeers((prevPeers) => {\n const newPeers = { ...prevPeers };\n delete newPeers[conn.peer];\n return newPeers;\n });\n showNotification(`Disconnected from peer: ${conn.peer}`);\n });\n };\n\n const generateQRCode = async (id: string) => {\n const qrcode = await (await fetch(`https://loading-generateqr.web.val.run/?peer=${id}`)).json();\n setQrcode(qrcode.base64Image);\n };\n\n const connectToPeer = (targetId = targetPeerId) => {\n if (!targetId || !peerRef.current) return;\n const conn = peerRef.current.connect(targetId);\n setupConnection(conn);\n setTargetPeerId(\"\");\n };\n\n const handleFileUpload = (event) => {\n const file = event.target.files[0];\n if (!file) return;\n\n const reader = new FileReader();\n reader.onload = (e) => {\n const fileData = {\n type: \"file\",\n file: {\n name: file.name,\n type: file.type,\n data: e.target.result,\n },\n };\n setFiles((prevFiles) => [...prevFiles, fileData.file]);\n\n Object.values(connectedPeers).forEach((conn) => {\n conn.send(fileData);\n });\n showNotification(`File sent: ${file.name}`);\n };\n reader.readAsArrayBuffer(file);\n };\n\n const copyShareableUrl = () => {\n if (!confirm(\"Are you sure you want to copy the shareable URL?\")) {\n return;\n }\n try {\n navigator.clipboard.writeText(getShareableUrl());\n } catch (err) {\n showNotification(\"Failed to copy shareable URL\");\n }\n showNotification(\"Shareable URL copied to clipboard\");\n };\n\n const sendMessage = () => {\n if (!message) return;\n Object.values(connectedPeers).forEach((conn) => {\n conn.send(message);\n });\n setChatHistory((prev) => [...prev, { sender: \"You\", message }]);\n setMessage(\"\");\n };\n\n const downloadFile = (file) => {\n const blob = new Blob([file.data], { type: file.type });\n const url = URL.createObjectURL(blob);\n const a = document.createElement(\"a\");\n a.href = url;\n a.download = file.name;\n document.body.appendChild(a);\n a.click();\n document.body.removeChild(a);\n URL.revokeObjectURL (url);\n };\n\n const showNotification = (message: string) => {\n setNotification(message);\n setTimeout(() => setNotification(null), 3000);\n };\n\n const shareNFC = async () => {\n if (!(\"NDEFReader\" in window)) {\n setNfcStatus(\"NFC is not supported on this device\");\n return;\n }\n\n try {\n const ndef = new NDEFReader();\n const shareableUrl = getShareableUrl();\n await ndef.write({\n records: [{\n recordType: \"url\",\n data: shareableUrl,\n }],\n });\n setNfcStatus(\"NFC sharing successful\");\n } catch (error) {\n console.error(error);\n setNfcStatus(\"NFC sharing failed: \" + error.message);\n }\n };\n\n return (\n

\n FileThing\n

\n Your Peer ID {peerId}\n

\n Your Shareable URL{\" \"}\n \n {getShareableUrl()}\n \n

\n setShowModal(!showModal)}\n >\n toggle QR Code\n \n {showModal && qrcode.length > 0 && (\n

\n $\"QR$ \n

\n )}\n

\n setTargetPeerId(e.target.value)}\n placeholder=\"Enter peer ID to connect\"\n className=\"w-full md:w-1/2 p-2 border-0 rounded bg-gray-800 border-gray-700 text-white mb-2 md:mb-0\"\n />\n connectToPeer()}\n className={`w-full md:w-auto mt-2 md:mt-0 md:ml-2 px-4 py-2 bg-${accent} text-white rounded transition-all hover:shadow-lg`}\n >\n Connect\n \n {\"NDEFReader\" in window &&\n \n Share via NFC\n }\n

\n {nfcStatus &&

{nfcStatus}

}\n

Connected Peers

{peer}

Files

\n \n\n

\n {getFileEmote(file)}{file.name} ({file.type})\n \n downloadFile(file)}\n className=\"px-2 py-1 bg-green-600 text-white rounded hover:bg-green-700 text-sm\"\n >\n Download\n \n

Chat

\n {chatHistory.map((chat, index) => (\n

\n {chat.sender}:{\" \"}\n {chat.message}\n

\n ))}\n

\n e.key === \"Enter\" && sendMessage()}\n onChange={(e) => setMessage(e.target.value)}\n placeholder=\"Enter message\"\n className=\"flex-grow p-2 border rounded bg-gray-800 border-gray-700 text-white mb-2 md:mb-0 md:mr-2\"\n />\n \n Send\n \n

\n {notification && (\n

\n {notification}\n

\n )}\n

\n );\n}\n\nfunction client() {\n render(, document.getElementById(\"root\")!);\n}\n\nif (typeof document !== \"undefined\") {\n client();\n}\n\nexport default async function server(request: Request): Promise {\n return new Response(\n `\n \n \n \n \n FileThing\n \n \n \n \n \n

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Diff · v225