// ============================================================
// Sabor Flow Da Nang — main.js
// Update SCHEDULE array monthly when the weekly program changes.
// ============================================================

const SCHEDULE = [
  { day: 'Monday',    when: '8:30 pm',  venue: 'Webe Coffee',       social: 'BOM',                music: '8 Bachata · 1 Salsa · 1 Kizomba',  city: 'Da Nang', organizer: 'Luu Phuong & Shai',  mapUrl: 'https://maps.app.goo.gl/jvaQgcNt4doYwZ2N7' },
  { day: 'Tuesday',   when: '9 pm',     venue: 'La Riva',            social: 'Latino Dancing',     music: '2 Salsa · 2 Bachata · 2 Kizomba',  city: 'Hoi An',  organizer: 'David Tavares',       mapUrl: 'https://www.google.com/maps/search/?api=1&query=La+Riva+An+Bang+Hoi+An+Vietnam' },
  { day: 'Tuesday',   when: '9 pm',     venue: 'Caliz Bar',          social: 'Sensual Night',      music: '3 Bachata · 2 Salsa · 2 Kizomba',  city: 'Da Nang', organizer: 'Daisy Nguyen',        mapUrl: 'https://www.google.com/maps/place/C%C3%A1liz+Wine+Bar/@16.0485026,108.2470699,17z' },
  { day: 'Wednesday', when: '7:30 pm',  venue: 'Ket Fai Bar',        social: 'Bachata Kiz Night',  music: 'Kizomba 7:30 · Bachata 9 pm',      city: 'Da Nang', organizer: 'Sean Kim',            mapUrl: 'https://www.google.com/maps/search/?api=1&query=Ket+Fai+Bar+Da+Nang+Vietnam' },
  { day: 'Thursday',  when: '9 pm',     venue: 'Malibu',             social: 'Salsa Nights',       music: '2 Salsa · 2 Bachata',              city: 'Da Nang', organizer: 'Lucho Giraldes',      mapUrl: 'https://www.google.com/maps/search/?api=1&query=Malibu+Beach+Club+Da+Nang+Vietnam' },
  { day: 'Friday',    when: '9 pm',     venue: 'An Thuong By Night', social: 'Dance Unity Party',  music: '2 Salsa · 2 Bachata · 2 Kizomba',  city: 'Da Nang', organizer: 'Nadiya Yagfarova',   mapUrl: 'https://www.google.com/maps/search/?api=1&query=An+Thuong+Tourist+Street+Da+Nang+Vietnam' },
  { day: 'Saturday',  when: '9 pm',     venue: 'La Riva',            social: 'Latino Dancing',     music: '2 Salsa · 2 Bachata · 2 Kizomba',  city: 'Hoi An',  organizer: 'David Tavares',       mapUrl: 'https://www.google.com/maps/search/?api=1&query=La+Riva+An+Bang+Hoi+An+Vietnam' },
  { day: 'Saturday',  when: '9 pm',     venue: 'An Thuong By Night', social: 'Bachata Party',      music: 'Only Bachata',                     city: 'Da Nang', organizer: 'Vaclav & Kseniya',   mapUrl: 'https://www.google.com/maps/search/?api=1&query=An+Thuong+Tourist+Street+Da+Nang+Vietnam' },
  { day: 'Sunday',    when: '9 pm',     venue: 'Last Call',          social: 'Latin Dance Social', music: '3 Bachata · 2 Salsa',              city: 'Da Nang', organizer: 'Vaclav & Kseniya',   mapUrl: 'https://www.google.com/maps/search/?api=1&query=Last+Call+Bar+Da+Nang+Vietnam' },
  { day: 'Sunday',    when: '9 pm',     venue: 'Corner Bar',         social: 'Sunday Latin',       music: '3 Bachata · 2 Salsa · 3 Kizomba',  city: 'Da Nang', organizer: 'Daisy Nguyen',        mapUrl: 'https://www.google.com/maps/search/?api=1&query=Corner+Bar+Da+Nang+Vietnam' },
];

const DAYS_ORDER = ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'];

function getTodayName() {
  return DAYS_ORDER[new Date().getDay()];
}

// Parse "2 Salsa · 3 Bachata · 1 Kizomba" into sfB-chip spans
function musicToChips(music) {
  const styleMap = { salsa: 'salsa', bachata: 'bachata', kizomba: 'kizomba', zouk: 'zouk' };
  return music.split('·').map(s => s.trim()).filter(Boolean).map(segment => {
    let cls = '';
    for (const [key, val] of Object.entries(styleMap)) {
      if (segment.toLowerCase().includes(key)) { cls = val; break; }
    }
    return `<span class="sfB-chip ${cls}">${segment}</span>`;
  }).join('');
}

// ---- Nav (mobile) ----
function initNav() {
  const hamburger = document.getElementById('sfB-hamburger');
  const mobileNav = document.getElementById('sfB-mobile-nav');
  const closeBtn  = document.getElementById('sfB-mobile-nav-close');

  if (!hamburger || !mobileNav) return;

  hamburger.addEventListener('click', () => mobileNav.classList.add('open'));
  if (closeBtn) closeBtn.addEventListener('click', () => mobileNav.classList.remove('open'));

  mobileNav.querySelectorAll('a').forEach(link => {
    link.addEventListener('click', () => mobileNav.classList.remove('open'));
  });

  // close on backdrop click
  mobileNav.addEventListener('click', e => {
    if (e.target === mobileNav) mobileNav.classList.remove('open');
  });
}

// ---- Schedule: full list (schedule.html) ----
function renderScheduleList() {
  const list = document.getElementById('sfB-schedule-list');
  if (!list) return;

  const today = getTodayName();

  list.innerHTML = SCHEDULE.map(row => {
    const isToday = row.day === today;
    const cityClass = row.city === 'Hoi An' ? 'hoian' : 'danang';
    const venueEl = row.mapUrl
      ? `<a href="${row.mapUrl}" target="_blank" rel="noopener">${row.venue}</a>`
      : row.venue;

    return `
      <div class="sfB-row${isToday ? ' today' : ''}">
        <div class="col-day">
          <span class="name">${row.day}</span>
          <span class="when">${row.when || ''}</span>
          ${isToday ? '<span class="tonight-label">▶ Tonight</span>' : ''}
        </div>
        <div class="col-venue">
          <span class="pin">📍</span>
          ${venueEl}
        </div>
        <div class="col-social">
          ${row.social}
          <span class="sub">${row.organizer}</span>
        </div>
        <div class="col-music">${musicToChips(row.music)}</div>
        <div><span class="col-city ${cityClass}">${row.city}</span></div>
        <div class="col-org">${row.organizer}</div>
      </div>`;
  }).join('');
}

// ---- Home: "Coming up" teaser (4 cards starting from today) ----
function renderScheduleTeaser() {
  const container = document.getElementById('sfB-coming-row');
  if (!container) return;

  const today = getTodayName();
  const startIdx = DAYS_ORDER.indexOf(today);
  const order = [...DAYS_ORDER.slice(startIdx), ...DAYS_ORDER.slice(0, startIdx)];

  const sorted = [...SCHEDULE].sort(
    (a, b) => order.indexOf(a.day) - order.indexOf(b.day)
  );

  container.innerHTML = sorted.slice(0, 4).map(row => `
    <a href="schedule.html" class="sfB-tcard">
      <div class="day">${row.day}</div>
      <div class="when">${row.when || ''}</div>
      <h4>${row.social}</h4>
      <div class="at">@ ${row.venue} · ${row.city}</div>
      <div class="chips">${musicToChips(row.music)}</div>
    </a>
  `).join('');
}

// ---- Filter pills (studios.html / classes.html) ----
function initFilters() {
  const pills = document.querySelectorAll('.filter-pill');
  if (!pills.length) return;

  pills.forEach(pill => {
    pill.addEventListener('click', () => {
      pills.forEach(p => p.classList.remove('active'));
      pill.classList.add('active');

      const filter = pill.dataset.filter;
      document.querySelectorAll('.filterable-card').forEach(card => {
        if (filter === 'all') {
          card.classList.remove('hidden');
        } else {
          const styles = (card.dataset.styles || '')
            .split(',')
            .map(s => s.trim().toLowerCase());
          card.classList.toggle('hidden', !styles.includes(filter));
        }
      });
    });
  });
}

// ---- Init ----
document.addEventListener('DOMContentLoaded', () => {
  initNav();
  renderScheduleList();
  renderScheduleTeaser();
  initFilters();
  const yearEl = document.getElementById('footer-year');
  if (yearEl) yearEl.textContent = new Date().getFullYear();
});