/**
* BTCFi Content Script — detects BTC addresses on pages
* Adds hover tooltip with balance on detected addresses.
*/
const BTC_REGEX = /\b(bc1[a-zA-HJ-NP-Z0-9]{39,62}|[13][a-km-zA-HJ-NP-Z1-9]{25,34})\b/g;
const API = 'https://btcfi.aiindigo.com';
const cache = new Map();
function createTooltip() {
const tip = document.createElement('div');
tip.id = 'btcfi-tooltip';
tip.style.cssText = 'position:fixed;background:#111;color:#e0e0e0;border:1px solid #f7931a;border-radius:6px;padding:8px 12px;font-family:monospace;font-size:12px;z-index:999999;pointer-events:none;display:none;max-width:300px;box-shadow:0 4px 12px rgba(0,0,0,0.5)';
document.body.appendChild(tip);
return tip;
}
let tooltip = null;
async function showBalance(addr, x, y) {
if (!tooltip) tooltip = createTooltip();
// Position
tooltip.style.left = Math.min(x, window.innerWidth - 310) + 'px';
tooltip.style.top = (y + 20) + 'px';
tooltip.style.display = 'block';
if (cache.has(addr)) {
tooltip.innerHTML = cache.get(addr);
return;
}
tooltip.textContent = 'Loading...';
try {
const res = await fetch(`${API}/api/v1/safe?addr=${encodeURIComponent(addr)}`);
const data = await res.json();
const risk = data?.data;
const html = risk
? `<div style="color:#f7931a;margin-bottom:4px">₿ ${addr.slice(0, 12)}...</div>`
+ `<div>Risk: <span style="color:${risk.overallScore <= 30 ? '#4ade80' : '#ef4444'}">${risk.overallScore}/100 (${risk.threatLevel})</span></div>`
+ `<div style="color:#888;font-size:10px;margin-top:4px">Click for full report</div>`
: `<div style="color:#888">No data</div>`;
tooltip.innerHTML = html;
cache.set(addr, html);
} catch {
tooltip.textContent = 'Failed to load';
}
}
// Scan page for BTC addresses
function scanPage() {
const walker = document.createTreeWalker(document.body, NodeFilter.SHOW_TEXT);
const matches = new Set();
while (walker.nextNode()) {
const text = walker.currentNode.textContent || '';
let match;
BTC_REGEX.lastIndex = 0;
while ((match = BTC_REGEX.exec(text)) !== null) {
matches.add(match[0]);
}
}
if (matches.size === 0) return;
// Add hover listeners to elements containing BTC addresses
matches.forEach(addr => {
const elements = document.querySelectorAll('*');
for (const el of elements) {
if (el.childNodes.length === 1 && el.childNodes[0].nodeType === 3 && el.textContent?.includes(addr)) {
el.style.cursor = 'help';
el.style.borderBottom = '1px dashed #f7931a33';
el.addEventListener('mouseenter', (e) => showBalance(addr, e.clientX, e.clientY));
el.addEventListener('mouseleave', () => { if (tooltip) tooltip.style.display = 'none'; });
el.addEventListener('click', (e) => {
e.preventDefault();
window.open(`${API}/safe?addr=${encodeURIComponent(addr)}`, '_blank');
});
break; // Only first match per address
}
}
});
}
// Run after page load
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', () => setTimeout(scanPage, 1000));
} else {
setTimeout(scanPage, 1000);
}
