Nostr-chat-widget shrinkify

This commit is contained in:
2025-11-24 15:47:41 -05:00
parent 8414e1013d
commit ae81a6bd7f
6 changed files with 364 additions and 1471 deletions

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/**
* Nostr Chat Widget - Embeddable Version (Glassmorphism Design)
*
* EMBED IT WITH:
* <script src="https://btcforplebs.com/nostr-chat-widget.js"
* data-nostr-pubkey="YOUR_PUBKEY_HEX_FORMAT"
* data-brand-name="My Company"
* data-color="#8e30eb"
* data-color-secondary="#ff8c00">
* </script>
*/
(function() {
'use strict';
// Get configuration from script tag
const scriptTag = document.currentScript;
const csPubkey = scriptTag.getAttribute('data-nostr-pubkey') || 'PUBKEY_TO_RECEICE_MESSAGES';
const brandName = scriptTag.getAttribute('data-brand-name') || 'Support Team Messaging';
const primaryColor = scriptTag.getAttribute('data-color') || '#fdad01';
const secondaryColor = scriptTag.getAttribute('data-color-secondary') || '#000000';
// Default relay configuration
const DEFAULT_RELAYS = [
'wss://relay.damus.io',
'wss://relay.primal.net',
'wss://nos.lol',
'wss://relay.btcforplebs.com'
];
// Add viewport meta tag for mobile optimization
let viewportMeta = document.querySelector('meta[name="viewport"]');
if (!viewportMeta) {
viewportMeta = document.createElement('meta');
viewportMeta.name = 'viewport';
viewportMeta.content = 'width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no';
document.head.appendChild(viewportMeta);
}
// Inject custom styles with glassmorphism
const style = document.createElement('style');
style.textContent = `
.safe-area-bottom {
padding-bottom: env(safe-area-inset-bottom);
}
#nostr-chat-widget-root > div {
pointer-events: auto !important;
z-index: 99999 !important;
}
.glass-morphism {
background: rgba(255, 255, 255, 0.08);
backdrop-filter: blur(20px);
-webkit-backdrop-filter: blur(20px);
border: 1px solid rgba(255, 255, 255, 0.15);
}
.glass-morphism-light {
background: rgba(255, 255, 255, 0.03);
backdrop-filter: blur(10px);
-webkit-backdrop-filter: blur(10px);
}
.glass-input {
background: rgba(255, 255, 255, 0.2);
backdrop-filter: blur(8px);
-webkit-backdrop-filter: blur(8px);
border: 1px solid rgba(255, 255, 255, 0.3);
}
.glass-input:focus {
background: rgba(255, 255, 255, 0.25);
border: 1px solid rgba(255, 255, 255, 0.4);
}
.glass-input::placeholder {
color: rgba(255, 255, 255, 0.6);
}
@media (max-width: 640px) {
#nostr-chat-widget-root .chat-window-mobile {
position: fixed !important;
top: 0 !important;
left: 0 !important;
right: 0 !important;
bottom: 0 !important;
width: 100% !important;
height: 100% !important;
max-height: 100vh !important;
border-radius: 0 !important;
}
}
`;
document.head.appendChild(style);
// Create widget container
const widgetRoot = document.createElement('div');
widgetRoot.id = 'nostr-chat-widget-root';
document.body.appendChild(widgetRoot);
// Import map for nostr-tools
const importMap = document.createElement('script');
importMap.type = 'importmap';
importMap.textContent = JSON.stringify({
imports: {
'nostr-tools': 'https://esm.sh/nostr-tools@1.17.0'
}
});
document.head.appendChild(importMap);
// Main widget script
const widgetScript = document.createElement('script');
widgetScript.type = 'module';
widgetScript.textContent = `
import {
relayInit,
generatePrivateKey,
getPublicKey,
getEventHash,
signEvent,
nip19,
nip04
} from 'nostr-tools';
const CONFIG = {
relays: ${JSON.stringify(DEFAULT_RELAYS)},
csPubkey: '${csPubkey}',
brandName: '${brandName}',
primaryColor: '${primaryColor}',
secondaryColor: '${secondaryColor}'
};
let state = {
isOpen: false,
messages: [],
inputMessage: '',
myPrivKey: null,
myPubKey: null,
relays: [],
connected: false,
sessionId: null
};
function getSessionKey() {
const stored = localStorage.getItem('nostr_chat_session');
if (stored) {
try {
const session = JSON.parse(stored);
if (Date.now() - session.created < 24 * 60 * 60 * 1000) {
return session.privKey;
}
} catch (e) {}
}
const privKey = generatePrivateKey();
localStorage.setItem('nostr_chat_session', JSON.stringify({
privKey,
created: Date.now()
}));
return privKey;
}
async function init() {
state.myPrivKey = getSessionKey();
state.myPubKey = getPublicKey(state.myPrivKey);
state.sessionId = state.myPubKey.substring(0, 8);
console.log('🔑 Session Identity:', nip19.npubEncode(state.myPubKey));
const relayPromises = CONFIG.relays.map(async (url) => {
try {
const relay = relayInit(url);
relay.on('connect', () => {
console.log(\`✓ Connected to \${url}\`);
checkConnection();
});
relay.on('disconnect', () => {
console.log(\`✗ Disconnected from \${url}\`);
});
await relay.connect();
return relay;
} catch (error) {
console.error(\`Failed: \${url}:\`, error);
return null;
}
});
state.relays = (await Promise.all(relayPromises)).filter(r => r !== null);
if (state.relays.length === 0) {
addMessage('system', '⚠️ Failed to connect to any relays');
return;
}
console.log(\`✓ Connected to \${state.relays.length}/\${CONFIG.relays.length} relays\`);
subscribeToReplies();
loadPreviousMessages();
state.connected = true;
render();
}
function checkConnection() {
const connected = state.relays.some(r => r.status === 1);
state.connected = connected;
render();
}
function subscribeToReplies() {
const filters = [{
kinds: [4],
'#p': [state.myPubKey],
authors: [CONFIG.csPubkey],
since: Math.floor(Date.now() / 1000) - 86400
}];
console.log('🔔 Subscribing to replies...');
state.relays.forEach(relay => {
const sub = relay.sub(filters);
sub.on('event', (event) => {
handleIncomingMessage(event);
});
sub.on('eose', () => {
console.log(\`✓ Subscribed: \${relay.url}\`);
});
});
}
function loadPreviousMessages() {
const stored = localStorage.getItem(\`nostr_chat_messages_\${state.sessionId}\`);
if (stored) {
try {
const messages = JSON.parse(stored);
messages.forEach(msg => state.messages.push(msg));
render();
} catch (e) {}
}
}
function saveMessages() {
localStorage.setItem(\`nostr_chat_messages_\${state.sessionId}\`, JSON.stringify(state.messages));
}
async function handleIncomingMessage(event) {
try {
if (state.messages.find(m => m.id === event.id)) {
return;
}
console.log('📨 Received message');
const decryptedText = await nip04.decrypt(
state.myPrivKey,
event.pubkey,
event.content
);
const message = {
id: event.id,
text: decryptedText,
sender: 'cs',
timestamp: new Date(event.created_at * 1000).toISOString()
};
addMessage('cs', decryptedText, message);
if (!document.hasFocus()) {
const originalTitle = document.title;
document.title = '💬 New message!';
setTimeout(() => {
document.title = originalTitle;
}, 3000);
}
} catch (error) {
console.error('Error decrypting message:', error);
}
}
async function sendMessage() {
if (!state.inputMessage.trim()) return;
const messageText = state.inputMessage;
state.inputMessage = '';
// Show message immediately (optimistic UI)
const tempMessage = {
id: 'temp_' + Date.now(),
text: messageText,
sender: 'user',
timestamp: new Date().toISOString()
};
state.messages.push(tempMessage);
render();
scrollToBottom();
try {
console.log('🔐 Encrypting and sending...');
const encrypted = await nip04.encrypt(
state.myPrivKey,
CONFIG.csPubkey,
messageText
);
let event = {
kind: 4,
created_at: Math.floor(Date.now() / 1000),
tags: [['p', CONFIG.csPubkey]],
content: encrypted,
pubkey: state.myPubKey
};
event.id = getEventHash(event);
event.sig = signEvent(event, state.myPrivKey);
let published = 0;
for (const relay of state.relays) {
try {
await relay.publish(event);
published++;
console.log(\`✓ Published to \${relay.url}\`);
} catch (err) {
console.error(\`✗ Failed: \${relay.url}:\`, err);
}
}
if (published === 0) {
addMessage('system', '⚠️ Failed to send - no relay connections');
return;
}
console.log(\`✓ Published to \${published}/\${state.relays.length} relays\`);
// Update temp message with real ID
const msgIndex = state.messages.findIndex(m => m.id === tempMessage.id);
if (msgIndex !== -1) {
state.messages[msgIndex].id = event.id;
}
saveMessages();
} catch (error) {
console.error('Error sending:', error);
addMessage('system', '⚠️ Failed to send message');
}
}
function addMessage(sender, text, fullMessage = null) {
const msg = fullMessage || {
id: Date.now().toString(),
text,
sender,
timestamp: new Date().toISOString()
};
state.messages.push(msg);
saveMessages();
render();
scrollToBottom();
}
function scrollToBottom() {
setTimeout(() => {
const container = document.getElementById('nostr-messages');
if (container) {
container.scrollTop = container.scrollHeight;
}
}, 100);
}
function escapeHtml(text) {
const div = document.createElement('div');
div.textContent = text;
return div.innerHTML;
}
function formatTime(timestamp) {
const date = new Date(timestamp);
return date.toLocaleTimeString('en-US', {
hour: 'numeric',
minute: '2-digit',
hour12: true
});
}
function render() {
const container = document.getElementById('nostr-chat-widget-root');
if (!container) return;
if (!state.isOpen) {
container.innerHTML = \`
<div class="fixed bottom-4 right-4 sm:bottom-6 sm:right-6 z-[99999]">
<button onclick="window.NostrChat.open()"
style="background: linear-gradient(to bottom right, \${CONFIG.primaryColor}, \${CONFIG.secondaryColor});"
class="hover:opacity-90 text-white rounded-full p-4 sm:p-5 shadow-2xl transition-all transform hover:scale-110 active:scale-95"
aria-label="Open chat"
>
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" class="sm:w-7 sm:h-7">
<path d="M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z"></path>
</svg>
</button>
</div>
\`;
return;
}
container.innerHTML = \`
<div class="fixed inset-0 sm:inset-auto sm:bottom-6 sm:right-6 z-[99999]">
<div class="glass-morphism chat-window-mobile rounded-none sm:rounded-2xl shadow-2xl w-full h-full sm:w-96 sm:h-[600px] max-w-full flex flex-col overflow-hidden">
</div>
<div style="background: linear-gradient(to bottom right, ${CONFIG.primaryColor}, ${CONFIG.secondaryColor});" class="text-white py-4 px-5 sm:px-6 rounded-t-2xl">
<div class="flex items-center justify-between">
<div class="flex items-center space-x-2">
<img src="/assets/logo.svg" alt="logo" class="h-5 w-5 sm:h-6 sm:w-6 rounded" />
<h3 class="font-semibold text-sm sm:text-base">${CONFIG.brandName}</h3>
</div>
<button onclick="window.NostrChat.close()" class="p-2 hover:bg-white/20 rounded-md transition-colors">
<svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><line x1="18" y1="6" x2="6" y2="18"></line><line x1="6" y1="6" x2="18" y2="18"/></svg>
</button>
</div>
<div style="background: linear-gradient(to bottom right, ${CONFIG.primaryColor}, ${CONFIG.secondaryColor});" class="text-white rounded-2xl rounded-tr-sm px-3 py-2 sm:px-4 sm:py-3 shadow-md text-sm sm:text-base">
${escapeHtml(msg.text)}
</div>
<div class="text-center text-white/60 mt-8">
<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1" class="mx-auto mb-3 opacity-50">
<path d="M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z"></path>
</svg>
<p class="text-sm">Start a conversation</p>
</div>
\` : state.messages.map(msg => {
if (msg.sender === 'system') {
return \`
<div class="flex justify-center">
<div class="bg-orange-100/40 backdrop-blur-sm text-orange-800 text-xs px-3 py-2 rounded-full border border-orange-300/50">
\${escapeHtml(msg.text)}
</div>
</div>
\`;
} else if (msg.sender === 'user') {
return \`
<div class="flex justify-end">
<div class="max-w-[85%] sm:max-w-xs">
<div style="background: linear-gradient(to bottom right, \${CONFIG.primaryColor}, \${CONFIG.secondaryColor});" class="text-white rounded-2xl rounded-tr-sm px-3 py-2 sm:px-4 sm:py-3 shadow-md text-sm sm:text-base">
\${escapeHtml(msg.text)}
</div>
<div class="text-xs text-white/60 mt-1 text-right">Sent \${formatTime(msg.timestamp)}</div>
</div>
</div>
\`;
} else if (msg.sender === 'cs') {
return \`
<div class="flex justify-start">
<div class="max-w-[85%] sm:max-w-xs">
<div style="background: linear-gradient(to bottom right, #9ca3af, #6b7280);" class="text-white rounded-2xl rounded-tl-sm px-3 py-2 sm:px-4 sm:py-3 shadow-md text-sm sm:text-base">
\${escapeHtml(msg.text)}
</div>
<div class="text-xs text-white/60 mt-1">\${formatTime(msg.timestamp)}</div>
</div>
</div>
\`;
}
return '';
}).join('')}
</div>
<div class="p-3 sm:p-3.5 mb-2 flex-shrink-0 safe-area-bottom">
<div class="glass-input rounded-xl p-2 flex gap-2 items-center">
<input
id="nostr-message-input"
type="text"
value="\${escapeHtml(state.inputMessage)}"
placeholder="Type your message..."
class="flex-1 bg-transparent px-2 py-1.5 focus:outline-none text-sm sm:text-base text-white placeholder-white/60"
\${!state.connected ? 'disabled' : ''}
>
<button
onclick="window.NostrChat.send()"
\${!state.connected || !state.inputMessage.trim() ? 'disabled' : ''}
style="background: linear-gradient(to bottom right, \${CONFIG.primaryColor}, \${CONFIG.secondaryColor});"
class="hover:opacity-90 disabled:opacity-40 text-white p-2 rounded-lg transition-all disabled:cursor-not-allowed active:scale-95 flex-shrink-0"
aria-label="Send message"
>
<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<line x1="22" y1="2" x2="11" y2="13"></line>
<polygon points="22 2 15 22 11 13 2 9 22 2"></polygon>
</svg>
</button>
</div>
</div>
</div>
</div>
\`;
const messageInput = document.getElementById('nostr-message-input');
if (messageInput) {
messageInput.addEventListener('input', (e) => {
state.inputMessage = e.target.value;
const sendButton = document.querySelector('button[onclick="window.NostrChat.send()"]');
if (sendButton) {
sendButton.disabled = !state.connected || !e.target.value.trim();
}
});
messageInput.addEventListener('keypress', (e) => {
if (e.key === 'Enter' && !e.shiftKey) {
e.preventDefault();
sendMessage();
}
});
const messagesContainer = document.getElementById('nostr-messages');
if (messagesContainer && state.messages.length > 0) {
setTimeout(() => {
messagesContainer.scrollTop = messagesContainer.scrollHeight;
}, 100);
}
messageInput.focus();
}
}
// Expose global API
window.NostrChat = {
open: async () => {
state.isOpen = true;
render();
if (state.relays.length === 0) {
await init();
}
},
close: () => {
state.isOpen = false;
render();
},
send: sendMessage
};
// Initial render
render();
`;
document.body.appendChild(widgetScript);
})();

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Nostr Chat Widget V2 Test</title>
<style>
body {
margin: 0;
padding: 0;
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
background: linear-gradient(45deg, #1a1a1a, #2d2d2d);
min-height: 100vh;
color: white;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
}
.content {
text-align: center;
padding: 2rem;
max-width: 600px;
}
h1 {
font-size: 2.5rem;
margin-bottom: 1rem;
background: linear-gradient(to right, #fdad01, #ff8c00);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
}
p {
color: #aaa;
line-height: 1.6;
}
</style>
</head>
<body>
<div class="content">
<h1>Nostr Chat Widget V2</h1>
<p>This is a test page for the refactored Nostr Chat Widget.</p>
<p>The widget should appear in the bottom right corner.</p>
</div>
<!-- Widget Embed Code -->
<!-- Using a random hex pubkey for testing purposes -->
<script src="nostr-chat-widget.js"
data-nostr-pubkey="75462f4dece4fbde54a535cfa09eb0d329bda090a9c2f9ed6b5f9d1d2fb6c15b"
data-brand-name="Test Widget" data-color="#fdad01" data-color-secondary="#ff8c00">
</script>
</body>
</html>