if ('serviceWorker' in navigator) { navigator.serviceWorker.register('/sw.js').catch(function() {}); } // PWA install prompt let deferredPrompt; const installDismissKey = 'bm_install_dismissed_until'; const installDismissDays = 7; function installPromptDismissed() { const until = Number(localStorage.getItem(installDismissKey) || '0'); return Number.isFinite(until) && until > Date.now(); } function dismissInstallPrompt() { localStorage.setItem(installDismissKey, String(Date.now() + installDismissDays * 24 * 60 * 60 * 1000)); } window.addEventListener('beforeinstallprompt', (e) => { e.preventDefault(); deferredPrompt = e; const visits = parseInt(localStorage.getItem('bm_visits') || '0') + 1; localStorage.setItem('bm_visits', String(visits)); if (visits >= 3 && !installPromptDismissed() && !document.getElementById('install-toast')) { const toast = document.createElement('div'); toast.id = 'install-toast'; toast.style.cssText = 'position:fixed;right:18px;bottom:18px;z-index:70;width:min(360px,calc(100vw - 36px));background:#0F0C08;border:1px solid #2A2113;border-radius:12px;box-shadow:0 22px 52px rgba(0,0,0,.42);padding:12px;display:flex;align-items:center;gap:12px;color:#F2E8CC;'; toast.innerHTML = 'Установите приложениеДобавить на главный экран'; document.body.appendChild(toast); const installButton = document.getElementById('install-btn'); const dismissButton = document.getElementById('dismiss-btn'); if (installButton) installButton.onclick = () => { if (deferredPrompt) deferredPrompt.prompt(); toast.remove(); dismissInstallPrompt(); }; if (dismissButton) dismissButton.onclick = () => { toast.remove(); dismissInstallPrompt(); }; } });