/**
 * AKSRT Site Notice — Popup notice with cookie-based frequency control
 *
 * Identity-based policy check is done server-side (PHP).
 * JS only handles: show/hide animation, cookie dismissal, expiry.
 *
 * @package AKSRT
 */

(function () {
  'use strict';

  var el = document.getElementById('aksrt-site-notice');
  if (!el) return;

  // 弹窗周期（小时），0=永不过期
  var expiresHours = parseInt(el.dataset.expires || '24', 10) || 0;
  var cookieName = 'aksrt_notice_seen';

  function getCookie(name) {
    var match = document.cookie.match(new RegExp('(^| )' + name + '=([^;]+)'));
    return match ? decodeURIComponent(match[2]) : null;
  }

  function setCookie(name, value, days) {
    var expires = '';
    if (days) {
      var date = new Date();
      date.setTime(date.getTime() + days * 86400000);
      expires = '; expires=' + date.toUTCString();
    }
    document.cookie = name + '=' + encodeURIComponent(value) + expires + '; path=/; SameSite=Lax';
  }

  function shouldShow() {
    if (expiresHours === 0) return true; // 永不过期，总是显示
    var seen = getCookie(cookieName);
    if (!seen) return true;
    var seenTs = parseInt(seen, 10);
    if (!seenTs || seenTs <= 0) return true;
    var now = Math.floor(Date.now() / 1000);
    return (now - seenTs) >= (expiresHours * 3600);
  }

  function dismiss() {
    // 写入当前时间戳
    var days = expiresHours > 0 ? Math.ceil(expiresHours / 24) : 365;
    setCookie(cookieName, String(Math.floor(Date.now() / 1000)), days);
    close();
  }

  function close() {
    el.style.opacity = '0';
    setTimeout(function () {
      el.style.display = 'none';
    }, 300);
  }

  function show() {
    el.style.display = '';
    el.style.opacity = '0';
    requestAnimationFrame(function () {
      el.style.transition = 'opacity 0.3s';
      el.style.opacity = '1';
    });
  }

  // Bind events
  var closeBtn = el.querySelector('.aksrt-site-notice__close');
  var overlay = el.querySelector('.aksrt-site-notice__overlay');
  // 所有 dismiss 按钮（包括 data-dismiss="notice" 的按钮和链接）
  var dismissBtns = el.querySelectorAll('[data-dismiss="notice"]');

  if (closeBtn) closeBtn.addEventListener('click', dismiss);
  if (overlay) overlay.addEventListener('click', dismiss);
  for (var i = 0; i < dismissBtns.length; i++) {
    dismissBtns[i].addEventListener('click', dismiss);
  }

  document.addEventListener('keydown', function (e) {
    if (e.key === 'Escape' && el.style.display !== 'none') {
      dismiss();
    }
  });

  // Show on load if needed
  if (shouldShow()) {
    // Delay slightly so it doesn't flash on fast navigations
    setTimeout(show, 500);
  }
})();