{% extends 'base.html.twig' %}

{% block title %}Browse events — VINDN{% endblock %}

{% block head_extra %}
<style>
  .toolbar{ display:flex; justify-content:space-between; align-items:center; gap:16px; flex-wrap:wrap; margin-bottom:20px; }
  .search-input-bar{ display:flex; gap:10px; margin-bottom:20px; }
  .search-input-bar input{ flex:1; padding:16px 20px; border:1px solid var(--line-strong); border-radius: var(--r-pill); font-size:15px; }
  .filter-label{
    display:block; font-family:var(--f-mono); font-size:11px; text-transform:uppercase;
    letter-spacing:.06em; color:var(--muted); margin:0 0 8px;
  }
  .filter-row{ display:flex; align-items:flex-start; gap:24px; flex-wrap:wrap; margin-bottom:18px; }
  .filter-group-inline{ display:flex; flex-direction:column; }
  .location-filter{ display:flex; align-items:center; gap:8px; flex-wrap:wrap; }
  .location-filter form{ display:flex; gap:6px; }
  .location-filter input[type=text]{ min-width:0; width:180px; padding:9px 12px; border:1px solid var(--line-strong); border-radius:var(--r-pill); font-size:13px; }
  .location-filter select{ padding:7px 8px; border:1px solid var(--line-strong); border-radius:6px; font-family:var(--f-mono); font-size:12px; background:#fff; }
</style>
{% endblock %}

{% block body %}
  <section class="section" style="padding-bottom:0;">
    <div class="wrap">
      <p class="eyebrow" style="margin-bottom:10px;">All events</p>
      <div class="toolbar">
        <h1 style="font-size:clamp(28px,4vw,40px);">{{ q ? 'Searching: "' ~ q ~ '"' : "What's on" }}{{ activeCategory ? ' — ' ~ activeCategory : '' }}</h1>
        <div style="display:flex; align-items:center; gap:12px;">
          <p class="mono" style="font-size:13px; color:var(--muted); margin:0;">{{ total }} event{{ total == 1 ? '' : 's' }}</p>
          <label for="sortSelect" style="display:none;">Sort by</label>
          <select id="sortSelect" style="padding:7px 8px; border:1px solid var(--line-strong); border-radius:6px; font-family:var(--f-mono); font-size:12px; background:#fff;">
            <option value="soonest" data-href="{{ path('event_list', filters|merge({sort: 'soonest'})) }}" {{ 'soonest' == sort ? 'selected' : '' }}>Sort: Soonest</option>
            {% if hasLocation %}
              <option value="nearest" data-href="{{ path('event_list', filters|merge({sort: 'nearest'})) }}" {{ 'nearest' == sort ? 'selected' : '' }}>Sort: Nearest</option>
            {% endif %}
            <option value="az" data-href="{{ path('event_list', filters|merge({sort: 'az'})) }}" {{ 'az' == sort ? 'selected' : '' }}>Sort: A–Z</option>
            <option value="za" data-href="{{ path('event_list', filters|merge({sort: 'za'})) }}" {{ 'za' == sort ? 'selected' : '' }}>Sort: Z–A</option>
          </select>
        </div>
      </div>

      <span class="filter-label">Search</span>
      <form class="search-input-bar" method="get" action="{{ path('event_list') }}">
        {% if activeCategory %}<input type="hidden" name="category" value="{{ activeCategory }}">{% endif %}
        {% if 'any' != when %}<input type="hidden" name="when" value="{{ when }}">{% endif %}
        {% if hasLocation %}
          <input type="hidden" name="lat" value="{{ lat }}">
          <input type="hidden" name="lon" value="{{ lon }}">
          <input type="hidden" name="range" value="{{ rangeKm }}">
        {% endif %}
        <label for="q" style="display:none;">Search events</label>
        <input id="q" name="q" type="text" value="{{ q }}" placeholder="Search by event, artist or venue…">
        <button class="btn btn-primary" type="submit">Search</button>
      </form>

      <span class="filter-label">Category</span>
      <input type="checkbox" id="catsToggle" class="chip-toggle-checkbox">
      <div class="chip-row chip-row-collapsible">
        <a href="{{ path('event_list', filters|merge({category: null})) }}" class="chip {{ activeCategory is null ? 'is-active' : '' }}">All</a>
        {% for category in categories %}
          <a href="{{ path('event_list', filters|merge({category: category})) }}" class="chip {{ activeCategory == category ? 'is-active' : '' }}">{{ category }}</a>
        {% endfor %}
      </div>
      <label for="catsToggle" class="chip-toggle-btn" style="margin-bottom:20px;">
        <span class="show-more">Show all categories ↑</span>
        <span class="show-less">Show fewer categories ↑</span>
      </label>

      <div class="filter-row">
        <div class="filter-group-inline">
          <span class="filter-label">When</span>
          <div class="chip-row-tight">
            <a href="{{ path('event_list', filters|merge({when: null})) }}" class="chip-sm {{ 'any' == when ? 'is-active' : '' }}">Any date</a>
            <a href="{{ path('event_list', filters|merge({when: 'today'})) }}" class="chip-sm {{ 'today' == when ? 'is-active' : '' }}">Today</a>
            <a href="{{ path('event_list', filters|merge({when: 'week'})) }}" class="chip-sm {{ 'week' == when ? 'is-active' : '' }}">Next 7 days</a>
          </div>
        </div>

        <div class="filter-group-inline">
          <span class="filter-label">Near a location</span>
          <div class="location-filter">
            <form id="locationSearchForm">
              <label for="locationSearchInput" style="display:none;">Search a place</label>
              <input id="locationSearchInput" type="text" placeholder="Search a place…" autocomplete="off">
              <button class="btn btn-ghost btn-sm" type="submit" aria-label="Search near this place">Go</button>
            </form>
            <button type="button" class="btn btn-ghost btn-sm" id="useMyLocationBtn">Use my location</button>
            <select id="rangeSelect">
              {% for km in rangeOptions %}
                <option value="{{ km }}" {{ km == rangeKm ? 'selected' : '' }}>{{ km }} km</option>
              {% endfor %}
            </select>
            {% if hasLocation %}
              <a href="{{ path('event_list', filters|merge({lat: null, lon: null, range: null})) }}" id="clearLocationLink" style="color:var(--accent); text-decoration:underline; font-family:var(--f-mono); font-size:12px;">clear</a>
            {% endif %}
          </div>
        </div>
      </div>
      <p class="locate-status" id="locationStatus">
        {% if hasLocation %}Showing events within {{ rangeKm }} km of {{ lat|number_format(3) }}, {{ lon|number_format(3) }}{% endif %}
      </p>
    </div>
  </section>

  <section class="section" style="padding-top:0;">
    <div class="wrap">
      <div class="card-grid">
        {% for event in events %}
          {% include 'events/_card.html.twig' with { event: event, dist: hasLocation ? distances[event.id]|default(null) : null } %}
        {% else %}
          <div class="no-results" style="grid-column:1/-1; padding:60px 20px; text-align:center; color:var(--muted); border:1px dashed var(--line-strong); border-radius:var(--r-card);">
            <p class="eyebrow" style="margin-bottom:8px;">No events</p>
            <p>Nothing matches those filters yet — try clearing one, or check back once the importer has run.</p>
          </div>
        {% endfor %}
      </div>

      {% include '_pager.html.twig' with {
        currentPage: page,
        totalPages: totalPages,
        routeName: 'event_list',
        routeParams: filters
      } %}
    </div>
  </section>
{% endblock %}

{% block scripts %}
<script>
(function(){
  var currentLat = {{ hasLocation ? lat : 'null' }};
  var currentLon = {{ hasLocation ? lon : 'null' }};
  var rangeSelect = document.getElementById('rangeSelect');

  // Shared with the home hero map and /map (see map.js) so a search/
  // geolocation made on any of the three sticks when moving between them.
  var LAST_LOCATION_KEY = 'vindn:lastLocation';

  function loadLastLocation() {
    try {
      var raw = window.localStorage && localStorage.getItem(LAST_LOCATION_KEY);
      if (!raw) return null;
      var parsed = JSON.parse(raw);
      if (typeof parsed.lat === 'number' && typeof parsed.lon === 'number' && isFinite(parsed.lat) && isFinite(parsed.lon)) {
        return parsed;
      }
    } catch (e) { /* localStorage disabled/unavailable, or corrupt value — just skip it */ }
    return null;
  }

  function saveLastLocation(lat, lon, name) {
    try {
      if (window.localStorage) localStorage.setItem(LAST_LOCATION_KEY, JSON.stringify({ lat: lat, lon: lon, name: name || null }));
    } catch (e) { /* localStorage disabled/unavailable — nothing to persist to */ }
  }

  function currentRangeKm() {
    return rangeSelect ? parseInt(rangeSelect.value, 10) : {{ rangeKm }};
  }

  // Full reloads happen after every location change here, so there's no
  // point setting the input's value client-side before navigating — the
  // restore-on-load block below re-reads it from localStorage instead,
  // right after this same call has just written it there.
  function navigateWithLocation(lat, lon, rangeKm, name) {
    // Preserve whatever's currently shown (e.g. a range-only change)
    // unless a new place/geolocation explicitly overrides it.
    if (name === undefined) {
      var locInput = document.getElementById('locationSearchInput');
      name = locInput ? locInput.value : null;
    }
    saveLastLocation(lat, lon, name);
    var url = new URL(window.location.href);
    url.searchParams.set('lat', lat.toFixed(5));
    url.searchParams.set('lon', lon.toFixed(5));
    url.searchParams.set('range', rangeKm || url.searchParams.get('range') || 25);
    url.searchParams.delete('page'); // the result set changed, page N may no longer exist
    window.location.href = url.toString();
  }

  function setStatus(text, isError) {
    var el = document.getElementById('locationStatus');
    if (!el) return;
    el.textContent = text;
    el.classList.toggle('is-error', !!isError);
  }

  // Nominatim: explicit submit only, never as-you-type — required by its
  // usage policy (max ~1 req/s, no autocomplete-style querying).
  var locationForm = document.getElementById('locationSearchForm');
  if (locationForm) {
    locationForm.addEventListener('submit', function (e) {
      e.preventDefault();
      var input = document.getElementById('locationSearchInput');
      var query = (input.value || '').trim();
      if (!query) return;
      setStatus('Looking up "' + query + '"…', false);
      fetch('https://nominatim.openstreetmap.org/search?format=json&limit=1&q=' + encodeURIComponent(query))
        .then(function (res) { return res.json(); })
        .then(function (results) {
          if (!results || !results.length) {
            setStatus('Could not find "' + query + '"', true);
            return;
          }
          navigateWithLocation(parseFloat(results[0].lat), parseFloat(results[0].lon), currentRangeKm(), results[0].display_name);
        })
        .catch(function () {
          setStatus('Location search failed', true);
        });
    });
  }

  var useMyLocationBtn = document.getElementById('useMyLocationBtn');
  if (useMyLocationBtn) {
    useMyLocationBtn.addEventListener('click', function () {
      if (!navigator.geolocation) {
        setStatus('Location not supported by your browser', true);
        return;
      }
      setStatus('Finding you…', false);
      navigator.geolocation.getCurrentPosition(function (pos) {
        navigateWithLocation(pos.coords.latitude, pos.coords.longitude, currentRangeKm(), 'Your location');
      }, function () {
        setStatus("Couldn't get your location", true);
      }, { timeout: 8000 });
    });
  }

  if (rangeSelect) {
    rangeSelect.addEventListener('change', function () {
      // No location chosen yet — just remember the preference for
      // whichever search/geolocation happens next.
      if (currentLat === null || currentLon === null) return;
      navigateWithLocation(currentLat, currentLon, currentRangeKm());
    });
  }

  var clearLocationLink = document.getElementById('clearLocationLink');
  if (clearLocationLink) {
    // Otherwise the restore-on-load check below would immediately undo
    // the clear on the very next visit.
    clearLocationLink.addEventListener('click', function () {
      try { window.localStorage && localStorage.removeItem(LAST_LOCATION_KEY); } catch (e) {}
    });
  }

  var sortSelect = document.getElementById('sortSelect');
  if (sortSelect) {
    sortSelect.addEventListener('change', function () {
      var opt = sortSelect.options[sortSelect.selectedIndex];
      window.location.href = opt.getAttribute('data-href');
    });
  }

  var saved = loadLastLocation();

  // Every full reload here (search, geolocation, range change) already
  // lands with an explicit ?lat=, so this doesn't overwrite it — it only
  // fills in the name text a fresh navigation can't carry in the URL.
  if (saved && saved.name) {
    var locInput = document.getElementById('locationSearchInput');
    if (locInput && !locInput.value) locInput.value = saved.name;
  }

  // A remembered search/geolocation from the home map or /map takes over
  // here too — unless this URL already has its own explicit ?lat=, which
  // always wins (e.g. a link shared with a location baked in).
  if (!/[?&]lat=/.test(window.location.search) && saved) {
    navigateWithLocation(saved.lat, saved.lon, currentRangeKm(), saved.name);
  }
})();
</script>
{% endblock %}