/* ============================================================
   Shunya Announce v1.0
   Rule-filtered messaging: announcement bar + geo-targeted popup
   - No async/await (wp_kses-safe), no inline handlers
   - All styles injected by JS — nothing for WordPress to strip
   - Edit CONFIG below, host this file as .txt in WP Media Library
   ============================================================ */
(function () {
  'use strict';

  var CONFIG = {
    // Your Apps Script /exec URL:
    apiUrl: 'https://script.google.com/macros/s/AKfycbwZAHis73uNYONS6YqWFQY_2WM4T0CK3oA8huVoVqTAJFxytnl9tNSn8Zun64q2mWiNng/exec',
    homeCountry: 'IN',          // visitors NOT from here = "international"
    popupDelayMs: 4000,         // wait before showing popup
    barRotateMs: 6000,          // rotation interval if multiple bar messages
    announcementsCacheMin: 10,  // client cache for sheet data
    brand: {
      green: '#1B4332',         // deep forest
      greenLight: '#2D6A4F',
      accent: '#95D5B2',
      text: '#FFFFFF',
      font: "'Montserrat', sans-serif"
    }
  };

  /* ---------- tiny utils ---------- */

  function ss(key, val) { // sessionStorage get/set with JSON
    try {
      if (arguments.length === 2) { sessionStorage.setItem(key, JSON.stringify(val)); return val; }
      var raw = sessionStorage.getItem(key);
      return raw ? JSON.parse(raw) : null;
    } catch (e) { return null; }
  }

  function dismissedIds() { return ss('shunya_dismissed') || []; }
  function dismiss(id) {
    var d = dismissedIds();
    if (d.indexOf(id) === -1) d.push(id);
    ss('shunya_dismissed', d);
  }

  /* ---------- geo detection (cached per session) ---------- */

  function getCountry() {
    if (window.SHUNYA_TEST && window.SHUNYA_TEST.country) {
      return Promise.resolve(window.SHUNYA_TEST.country);
    }
    var cached = ss('shunya_cc');
    if (cached) return Promise.resolve(cached);

    return fetch('https://ipapi.co/json/')
      .then(function (r) { if (!r.ok) throw new Error('ipapi failed'); return r.json(); })
      .then(function (d) { return d.country_code; })
      .catch(function () {
        return fetch('https://ipwho.is/')
          .then(function (r) { return r.json(); })
          .then(function (d) { return d.country_code; });
      })
      .then(function (cc) {
        cc = (cc || CONFIG.homeCountry).toUpperCase();
        ss('shunya_cc', cc);
        return cc;
      })
      .catch(function () { return CONFIG.homeCountry; }); // fail safe: treat as home
  }

  /* ---------- announcements fetch (cached) ---------- */

  function getAnnouncements() {
    if (window.SHUNYA_TEST && window.SHUNYA_TEST.items) {
      return Promise.resolve(window.SHUNYA_TEST.items);
    }
    var cached = ss('shunya_ann');
    if (cached && (Date.now() - cached.t) < CONFIG.announcementsCacheMin * 60000) {
      return Promise.resolve(cached.items);
    }
    return fetch(CONFIG.apiUrl)
      .then(function (r) { return r.json(); })
      .then(function (d) {
        var items = (d && d.items) || [];
        ss('shunya_ann', { t: Date.now(), items: items });
        return items;
      })
      .catch(function () { return (cached && cached.items) || []; });
  }

  /* ---------- filter engine ---------- */

  function isLive(item, now) {
    if (item.start && now < new Date(item.start)) return false;
    if (item.end && now > new Date(item.end)) return false;
    return true;
  }

  function audienceMatch(item, countryCode) {
    if (item.audience === 'all' || !item.audience) return true;
    var isHome = countryCode === CONFIG.homeCountry;
    if (item.audience === 'india') return isHome;
    if (item.audience === 'international') return !isHome;
    return false;
  }

  function selectMessages(items, countryCode) {
    var now = new Date();
    var d = dismissedIds();
    var eligible = items.filter(function (it) {
      return isLive(it, now) && audienceMatch(it, countryCode) && d.indexOf(it.id) === -1;
    }).sort(function (a, b) { return a.priority - b.priority; });

    return {
      bars: eligible.filter(function (it) { return it.type === 'bar'; }),
      popup: eligible.filter(function (it) { return it.type === 'popup'; })[0] || null
    };
  }

  /* ---------- styles ---------- */

  function injectStyles() {
    var b = CONFIG.brand;
    var css = '' +
      '#shunya-bar{position:relative;z-index:99998;background:' + b.green + ';color:' + b.text + ';font-family:' + b.font + ';font-size:14px;line-height:1.4;}' +
      '#shunya-bar .sb-inner{max-width:1200px;margin:0 auto;padding:10px 44px 10px 16px;display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;text-align:center;}' +
      '#shunya-bar .sb-dot{width:8px;height:8px;border-radius:50%;background:' + b.accent + ';flex:none;animation:sbPulse 1.6s ease-in-out infinite;}' +
      '@keyframes sbPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.7)}}' +
      '@media (prefers-reduced-motion: reduce){#shunya-bar .sb-dot{animation:none}}' +
      '#shunya-bar .sb-msg{transition:opacity .35s ease;}' +
      '#shunya-bar .sb-cta{color:' + b.green + ';background:' + b.accent + ';text-decoration:none;font-weight:600;padding:4px 14px;border-radius:999px;white-space:nowrap;flex:none;}' +
      '#shunya-bar .sb-cta:hover{background:#b7e4c7;color:' + b.green + ';}' +
      '#shunya-bar .sb-close{position:absolute;right:10px;top:50%;transform:translateY(-50%);background:none;border:none;color:' + b.text + ';opacity:.7;font-size:18px;cursor:pointer;padding:6px;line-height:1;}' +
      '#shunya-bar .sb-close:hover,#shunya-bar .sb-close:focus{opacity:1;outline:2px solid ' + b.accent + ';border-radius:4px;}' +

      '#shunya-popup{position:fixed;right:20px;bottom:20px;z-index:99999;max-width:340px;width:calc(100vw - 40px);background:#fff;border-radius:14px;border-left:5px solid ' + b.greenLight + ';box-shadow:0 12px 36px rgba(27,67,50,.25);font-family:' + b.font + ';padding:20px 20px 18px;transform:translateY(24px);opacity:0;transition:transform .4s ease,opacity .4s ease;}' +
      '#shunya-popup.sp-show{transform:translateY(0);opacity:1;}' +
      '@media (prefers-reduced-motion: reduce){#shunya-popup{transition:none;transform:none}}' +
      '#shunya-popup .sp-eyebrow{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:' + b.greenLight + ';font-weight:700;margin:0 0 8px;}' +
      '#shunya-popup .sp-msg{font-size:15px;color:#1c2b24;line-height:1.55;margin:0 0 14px;}' +
      '#shunya-popup .sp-cta{display:inline-block;background:' + b.green + ';color:#fff;text-decoration:none;font-weight:600;font-size:14px;padding:10px 20px;border-radius:8px;}' +
      '#shunya-popup .sp-cta:hover{background:' + b.greenLight + ';color:#fff;}' +
      '#shunya-popup .sp-close{position:absolute;right:10px;top:8px;background:none;border:none;color:#7a8a82;font-size:18px;cursor:pointer;padding:6px;line-height:1;}' +
      '#shunya-popup .sp-close:hover,#shunya-popup .sp-close:focus{color:' + b.green + ';outline:2px solid ' + b.accent + ';border-radius:4px;}';

    var style = document.createElement('style');
    style.textContent = css;
    document.head.appendChild(style);
  }

  /* ---------- announcement bar ---------- */

  function renderBar(bars) {
    if (!bars.length) return;

    var bar = document.createElement('div');
    bar.id = 'shunya-bar';
    bar.setAttribute('role', 'region');
    bar.setAttribute('aria-label', 'Announcement');

    var inner = document.createElement('div');
    inner.className = 'sb-inner';

    var dot = document.createElement('span');
    dot.className = 'sb-dot';

    var msg = document.createElement('span');
    msg.className = 'sb-msg';

    var cta = document.createElement('a');
    cta.className = 'sb-cta';

    var close = document.createElement('button');
    close.className = 'sb-close';
    close.setAttribute('aria-label', 'Dismiss announcement');
    close.textContent = '\u2715';

    inner.appendChild(dot);
    inner.appendChild(msg);
    inner.appendChild(cta);
    bar.appendChild(inner);
    bar.appendChild(close);

    var i = 0;
    function show(idx) {
      var item = bars[idx];
      msg.textContent = item.message;
      if (item.ctaLabel && item.ctaLink) {
        cta.textContent = item.ctaLabel;
        cta.href = item.ctaLink;
        cta.style.display = '';
      } else {
        cta.style.display = 'none';
      }
      bar.dataset.currentId = item.id;
    }
    show(0);

    if (bars.length > 1) {
      setInterval(function () {
        msg.style.opacity = '0';
        setTimeout(function () {
          i = (i + 1) % bars.length;
          show(i);
          msg.style.opacity = '1';
        }, 350);
      }, CONFIG.barRotateMs);
    }

    close.addEventListener('click', function () {
      // dismissing hides the whole bar for this session
      bars.forEach(function (b) { dismiss(b.id); });
      bar.parentNode.removeChild(bar);
    });

    document.body.insertBefore(bar, document.body.firstChild);
  }

  /* ---------- popup ---------- */

  function renderPopup(item) {
    if (!item) return;

    setTimeout(function () {
      var card = document.createElement('div');
      card.id = 'shunya-popup';
      card.setAttribute('role', 'dialog');
      card.setAttribute('aria-label', 'Message from Shunya');

      var eyebrow = document.createElement('p');
      eyebrow.className = 'sp-eyebrow';
      eyebrow.textContent = 'Shunya Agritech';

      var msg = document.createElement('p');
      msg.className = 'sp-msg';
      msg.textContent = item.message;

      card.appendChild(eyebrow);
      card.appendChild(msg);

      if (item.ctaLabel && item.ctaLink) {
        var cta = document.createElement('a');
        cta.className = 'sp-cta';
        cta.textContent = item.ctaLabel;
        cta.href = item.ctaLink;
        card.appendChild(cta);
      }

      var close = document.createElement('button');
      close.className = 'sp-close';
      close.setAttribute('aria-label', 'Close message');
      close.textContent = '\u2715';
      close.addEventListener('click', function () {
        dismiss(item.id);
        card.parentNode.removeChild(card);
      });
      card.appendChild(close);

      document.body.appendChild(card);
      requestAnimationFrame(function () {
        requestAnimationFrame(function () { card.classList.add('sp-show'); });
      });
    }, (window.SHUNYA_TEST && window.SHUNYA_TEST.popupDelayMs) || CONFIG.popupDelayMs);
  }

  /* ---------- boot ---------- */

  function init() {
    injectStyles();
    Promise.all([getAnnouncements(), getCountry()])
      .then(function (res) {
        var selected = selectMessages(res[0], res[1]);
        renderBar(selected.bars);
        renderPopup(selected.popup);
      })
      .catch(function () { /* fail silently — never break the site */ });
  }

  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', init);
  } else {
    init();
  }
})();