@extends('layouts.dashboard')

@section('dashboard-content')
<div class="gis-viewer-wrap">
    <div class="gis-viewer-header">
        <div>
            <p class="overview-eyebrow">Workstation</p>
            <h2>GIS Viewer</h2>
            <p class="gis-viewer-desc">OpenStreetMap base · Boundaries, properties &amp; survey plans (GeoJSON). QGIS-compatible.</p>
        </div>
        <a href="{{ url('/workstation') }}" class="btn btn-secondary">← Back to Workstations</a>
    </div>

    <div class="gis-viewer-body">
        <div class="gis-viewer-sidebar">
            <div class="gis-viewer-controls">
                <h3>Map layers</h3>
                <div class="gis-layer-list">
                    <label class="gis-layer-item">
                        <input type="checkbox" id="layer-boundaries" checked>
                        <span>Boundaries</span>
                    </label>
                    <label class="gis-layer-item">
                        <input type="checkbox" id="layer-properties" checked>
                        <span>Properties</span>
                    </label>
                    <label class="gis-layer-item">
                        <input type="checkbox" id="layer-surveys">
                        <span>Survey plans</span>
                    </label>
                </div>
                <h3>Tools</h3>
                <div class="gis-tool-buttons">
                    <button type="button" class="btn btn-secondary gis-btn" id="gis-zoom-in" title="Zoom in">🔍+</button>
                    <button type="button" class="btn btn-secondary gis-btn" id="gis-zoom-out" title="Zoom out">🔍−</button>
                    <button type="button" class="btn btn-secondary gis-btn" id="gis-fit" title="Fit bounds">🌐</button>
                </div>
                <h3>Search</h3>
                <input type="text" id="gis-search-input" class="form-input" placeholder="Property, boundary, owner…">
                <button type="button" class="btn btn-primary" id="gis-search-btn" style="width:100%; margin-top:8px;">Search</button>
            </div>
        </div>
        <div class="gis-viewer-map-wrap">
            <div id="gis-map" class="gis-map-el"></div>
            <div class="gis-info-bar" id="gis-info-bar">
                <p class="gis-info-default" id="gis-info-default">Click a feature on the map to view details.</p>
                <div class="gis-info-content" id="gis-info-content" style="display:none;"></div>
            </div>
        </div>
    </div>
</div>

@push('styles')
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" crossorigin="">
<style>
.gis-viewer-wrap { height: calc(100vh - 140px); display: flex; flex-direction: column; min-height: 400px; }
.gis-viewer-header { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; }
.gis-viewer-desc { color: var(--text-muted); font-size: 0.95rem; margin-top: 4px; }
.gis-viewer-body { flex: 1; display: flex; gap: 16px; min-height: 0; }
.gis-viewer-sidebar { width: 260px; flex-shrink: 0; background: var(--card-bg, #fff); border-radius: 12px; padding: 16px; border: 1px solid var(--border-color, #e2e8f0); max-height: 100%; overflow-y: auto; }
.gis-viewer-controls h3 { font-size: 0.95rem; font-weight: 600; margin: 0 0 10px 0; padding-bottom: 6px; border-bottom: 1px solid var(--border-color); }
.gis-layer-list { margin-bottom: 16px; }
.gis-layer-item { display: flex; align-items: center; gap: 8px; padding: 6px 0; cursor: pointer; }
.gis-layer-item input { width: 18px; height: 18px; }
.gis-tool-buttons { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.gis-btn { padding: 8px 12px; }
.gis-viewer-map-wrap { flex: 1; min-width: 0; display: flex; flex-direction: column; min-height: 0; border-radius: 12px; overflow: hidden; border: 1px solid var(--border-color); background: var(--primary-teal-pale, #e6f7f8); }
.gis-map-el { flex: 1; min-height: 300px; }
.gis-info-bar { background: #fff; border-top: 1px solid var(--border-color); padding: 12px 16px; max-height: 120px; overflow-y: auto; font-size: 0.9rem; }
.gis-info-default { color: var(--text-muted); margin: 0; }
.gis-info-content p { margin: 4px 0; }
@media (max-width: 768px) { .gis-viewer-body { flex-direction: column; } .gis-viewer-sidebar { width: 100%; max-height: 200px; } }
</style>
@endpush

@push('scripts')
<script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js" crossorigin=""></script>
<script>
(function() {
    var map = L.map('gis-map').setView([9.0820, 8.6753], 6);
    L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', { attribution: '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a>' }).addTo(map);

    var layers = { boundaries: null, properties: null, surveys: null };
    var layerVisibility = { boundaries: true, properties: true, surveys: false };

    function addGeoJson(url, key, style, pointRadius) {
        fetch(url, { credentials: 'same-origin', headers: { 'Accept': 'application/json', 'X-Requested-With': 'XMLHttpRequest' } })
            .then(function(r) { return r.json(); })
            .then(function(geojson) {
                if (layers[key]) { map.removeLayer(layers[key]); layers[key] = null; }
                if (!geojson.features || geojson.features.length === 0) return;
                var opts = {
                    style: function(f) { return (f && f.geometry && f.geometry.type === 'Point') ? {} : style; },
                    pointToLayer: function(coord, latlng) {
                        return L.circleMarker(latlng, {
                            radius: pointRadius || 8,
                            fillColor: style.fillColor || '#22c55e',
                            color: style.color || '#16a34a',
                            weight: 2,
                            fillOpacity: style.fillOpacity || 0.6
                        });
                    },
                    onEachFeature: function(feature, layer) {
                        var props = feature.properties || {};
                        var html = Object.keys(props).map(function(k) { return '<strong>' + k + ':</strong> ' + props[k]; }).join('<br>');
                        layer.bindPopup(html);
                        layer.on('click', function() {
                            document.getElementById('gis-info-default').style.display = 'none';
                            var content = document.getElementById('gis-info-content');
                            content.style.display = 'block';
                            content.innerHTML = html;
                        });
                    }
                };
                var layer = L.geoJSON(geojson, opts);
                if (layerVisibility[key]) layer.addTo(map);
                layers[key] = layer;
            })
            .catch(function() {});
    }

    addGeoJson('{{ url("/gis/boundaries/geojson") }}', 'boundaries', { color: '#2563eb', weight: 3 });
    addGeoJson('{{ url("/gis/properties/geojson") }}', 'properties', { color: '#16a34a', fillColor: '#22c55e', fillOpacity: 0.6 }, 8);
    addGeoJson('{{ url("/gis/survey-plans/geojson") }}', 'surveys', { color: '#ea580c', fillColor: '#f97316', fillOpacity: 0.7 }, 6);

    ['boundaries', 'properties', 'surveys'].forEach(function(key) {
        var box = document.getElementById('layer-' + key);
        if (!box) return;
        box.addEventListener('change', function() {
            layerVisibility[key] = box.checked;
            if (layers[key]) {
                if (box.checked) layers[key].addTo(map);
                else map.removeLayer(layers[key]);
            }
        });
    });

    document.getElementById('gis-zoom-in').addEventListener('click', function() { map.zoomIn(); });
    document.getElementById('gis-zoom-out').addEventListener('click', function() { map.zoomOut(); });
    document.getElementById('gis-fit').addEventListener('click', function() {
        var b = null;
        ['boundaries', 'properties', 'surveys'].forEach(function(k) {
            if (layers[k] && layerVisibility[k] && layers[k].getBounds) {
                var lb = layers[k].getBounds();
                if (lb.isValid()) b = b ? b.extend(lb) : lb;
            }
        });
        if (b && b.isValid()) map.fitBounds(b, { padding: [20, 20], maxZoom: 14 });
        else map.setView([9.0820, 8.6753], 6);
    });

    function doSearch() {
        var q = (document.getElementById('gis-search-input').value || '').trim().toLowerCase();
        if (!q) return;
        var found = false;
        ['boundaries', 'properties', 'surveys'].forEach(function(k) {
            if (!layers[k]) return;
            layers[k].eachLayer(function(layer) {
                var f = layer.feature;
                var props = (f && f.properties) ? f.properties : {};
                var match = Object.keys(props).some(function(kk) { return String(props[kk]).toLowerCase().indexOf(q) !== -1; });
                if (match) {
                    var ll = layer.getLatLng ? layer.getLatLng() : (layer.getBounds && layer.getBounds().getCenter());
                    if (ll) {
                        map.panTo(ll);
                        map.setZoom(Math.max(map.getZoom(), 12));
                        if (layer.openPopup) layer.openPopup();
                        found = true;
                    }
                }
            });
        });
    }
    document.getElementById('gis-search-btn').addEventListener('click', doSearch);
    document.getElementById('gis-search-input').addEventListener('keydown', function(e) { if (e.key === 'Enter') doSearch(); });
})();
</script>
@endpush
@endsection