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jwinterm
fad2a695bd
A browser-based roguelike synchronized with crypto block timing. A run is a race against the next block: reach the exit before the block lands, or the house wins. The same codebase runs the solo dungeon, the social Tavern, and operator-selected PvP and race rulesets, with separate free and paid leaderboards. Self-hostable under the MIT License. See README.md to run it, docs/ARCHITECTURE.md for the design, and docs/DEPLOY.md to operate an instance.
39 lines
1.3 KiB
JavaScript
39 lines
1.3 KiB
JavaScript
// qrService.js - Generates QR codes for payment URIs
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// Uses the 'qrcode' package if available; degrades gracefully if not.
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let QR;
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const money = require('../money/atomic');
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try {
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QR = require('qrcode');
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} catch (e) {
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QR = null;
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}
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function formatAmount(atomic, decimals = 12) {
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try {
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const exact = money.toBig(atomic);
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return exact > 0n ? money.format(exact, decimals) : '0';
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} catch (_) {
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return '0';
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}
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}
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async function generatePaymentQR(address, amountAtomic, cryptoType, description, decimals = 12) {
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if (!QR) return null; // Library not installed
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try {
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const amountStr = formatAmount(amountAtomic, decimals);
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const scheme = cryptoType && cryptoType.toUpperCase() === 'WOW' ? 'wownero' : 'monero';
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// Basic URI; wallets usually understand amount (tx_amount) & description
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const params = new URLSearchParams();
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if (amountAtomic) params.set('tx_amount', amountStr);
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if (description) params.set('tx_description', description.substring(0, 64));
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const uri = `${scheme}:${address}${params.toString() ? '?' + params.toString() : ''}`;
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return await QR.toDataURL(uri, { errorCorrectionLevel: 'M', scale: 6, margin: 1 });
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} catch (err) {
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console.error('QR generation failed:', err.message);
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return null;
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}
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}
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module.exports = { generatePaymentQR };
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