Tutorial_SpatialQueryLab/spatial_query_lab_fixed.html at main · rayford295/Tutorial_SpatialQueryLab · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
  <title>Spatial Query Lab — Fixed</title>

  <!-- Leaflet CSS -->
  <link
    rel="stylesheet"
    href="https://cdn.jsdelivr.net/npm/leaflet@1.9.4/dist/leaflet.css"
    integrity="sha256-p4NxAoJBhIIN+hmNHrzRCf9tD/miZyoHS5obTRR9BMY="
    crossorigin=""
  />
  <style>
    :root {
      --bg: #f7f7fb;
      --card: #ffffff;
      --muted: #6b7280;
      --text: #111827;
      --accent: #2563eb;
      --accent-2: #1f2937;
      --border: #e5e7eb;
    }
    * { box-sizing: border-box; }
    body {
      margin: 0;
      font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
      background: var(--bg);
      color: var(--text);
    }
    .container {
      display: grid;
      grid-template-columns: 420px 1fr;
      gap: 16px;
      padding: 16px;
      height: 100vh;
    }
    .panel {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 14px;
      height: 100%;
      overflow: auto;
    }
    .section {
      border: 1px dashed var(--border);
      border-radius: 12px;
      padding: 12px;
      margin-bottom: 12px;
      background: #fff;
    }
    h1 {
      font-size: 18px;
      margin: 0 0 8px 0;
      display: flex; align-items: center; gap: 8px;
    }
    h2 { font-size: 15px; margin: 0 0 8px 0; }
    label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
    input, textarea, select {
      width: 100%;
      padding: 8px 10px;
      border: 1px solid var(--border);
      border-radius: 10px;
      outline: none;
      font-size: 13px;
      background: #fff;
    }
    textarea { min-height: 140px; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }
    .row { display: flex; gap: 8px; }
    .btn {
      padding: 8px 12px;
      border-radius: 10px;
      border: 1px solid var(--border);
      background: var(--accent);
      color: #fff;
      font-weight: 600;
      cursor: pointer;
    }
    .btn.secondary { background: #fff; color: var(--accent-2); }
    .small { font-size: 12px; color: var(--muted); }
    #map {
      height: 100%;
      width: 100%;
      border-radius: 14px;
      border: 1px solid var(--border);
    }
    table { width: 100%; border-collapse: collapse; font-size: 13px; }
    th, td { padding: 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
    th { text-align: left; color: var(--muted); font-weight: 600; }
    .status { font-size: 12px; }
    .ok { color: #047857; }
    .err { color: #b91c1c; }
    .chip { display:inline-block; padding:2px 6px; border-radius:8px; background:#eef2ff; color:#3730a3; font-size:11px; }
    .kbd { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; background:#f3f4f6; padding:0 6px; border-radius:6px; border:1px solid #e5e7eb; }
  </style>
</head>
<body>
  <div class="container">
    <!-- Left Panel -->
    <div class="panel">
      <h1>Spatial Query Lab <span class="chip">v3-fixed</span></h1>

      <!-- 1) Supabase connector -->
      <div class="section">
        <h2>1) Supabase (SQL Runner)</h2>
        <label>Supabase Project URL</label>
        <input id="project_url" placeholder="https://xxxxx.supabase.co" />

        <label style="margin-top:8px">Supabase anon public key</label>
        <input id="anon_key" placeholder="eyJhbGciOiJI..." />

        <div class="row" style="margin-top:10px">
          <button class="btn" onclick="connectSupabase()">Connect Supabase</button>
          <div id="connect_status" class="status" style="padding-top:10px;margin-left:8px;">Not connected</div>
        </div>
        <div class="small" style="margin-top:8px">Backend expects Postgres function <span class="kbd">run_open_sql(sql_text)</span> to execute arbitrary SQL.</div>
      </div>

      <!-- 2) SQL Editor -->
      <div class="section">
        <h2>2) SQL Editor</h2>
        <div class="small" style="margin-bottom:8px">
          Click the map to set variables <span class="kbd">{{lon}}</span>, <span class="kbd">{{lat}}</span>, <span class="kbd">{{dist_m}}</span> (default 200).
        </div>
        <textarea id="sql_text">
-- Try a simple spatial query (edit me)
select id, name, type,
       st_asgeojson(geom)::jsonb as geom
from campus_safety
limit 10;
        </textarea>

        <div class="row" style="margin-top:8px">
          <button class="btn" onclick="runSQL()">Run SQL</button>
          <button class="btn secondary" onclick="clearResults()">Clear Results</button>
        </div>
        <div id="last_click" class="small" style="margin-top:6px">Ready. No map click yet.</div>
        <div id="sql_error" class="small err" style="margin-top:6px; display:none;"></div>
      </div>

      <!-- 3) Results -->
      <div class="section">
        <h2>3) Results</h2>
        <table id="results_table">
          <thead id="results_head"></thead>
          <tbody id="results_body"></tbody>
        </table>
        <div id="rows_count" class="small" style="margin-top:6px"></div>
      </div>
    </div>

    <!-- Right Panel: Map -->
    <div class="panel" style="padding:8px;">
      <div id="map"></div>
    </div>
  </div>

  <!-- Leaflet JS -->
  <script
    src="https://cdn.jsdelivr.net/npm/leaflet@1.9.4/dist/leaflet.js"
    integrity="sha256-20nQCchB9co0qIjJZRGuk2/Z9VM+kNiyxNV1lvTlZBo="
    crossorigin=""
  ></script>
  <!-- Supabase JS v2 -->
  <script src="https://cdn.jsdelivr.net/npm/@supabase/supabase-js@2"></script>

  <script>
    // ---- Map init (FIX: use raster tiles instead of GL style JSON) ----
    const map = L.map('map', { zoomControl: true }).setView([30.615, -96.34], 16);
    L.tileLayer('https://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}{r}.png', {
      attribution: '&copy; <a href="https://carto.com/">CARTO</a>',
      maxZoom: 20
    }).addTo(map);

    let clickMarker = null;
    let geoLayer = L.geoJSON(null).addTo(map);
    let currentClick = { lon: null, lat: null, dist_m: 200 };

    map.on('click', (e) => {
      const { lat, lng } = e.latlng;
      currentClick.lat = +lat.toFixed(6);
      currentClick.lon = +lng.toFixed(6);
      if (clickMarker) map.removeLayer(clickMarker);
      clickMarker = L.marker([lat, lng]).addTo(map);
      document.getElementById('last_click').textContent =
        `Click set → lat=${currentClick.lat}, lon=${currentClick.lon}, dist=${currentClick.dist_m}m`;
    });

    // ---- Supabase ----
    const { createClient } = supabase;
    let sb = null;

    async function connectSupabase() {
      setError('');
      const url = document.getElementById('project_url').value.trim();
      const key = document.getElementById('anon_key').value.trim();

      if (!url || !key) {
        setStatus('Please enter project URL and anon key.', false);
        return;
      }
      try {
        sb = createClient(url, key);
        // Simple smoke test
        const { error } = await sb.rpc('run_open_sql', { sql_text: 'select 1' });
        if (error) throw error;
        setStatus('Connected ✅', true);
      } catch (err) {
        setStatus('Connection failed', false);
        setError(err.message || String(err));
      }
    }

    function setStatus(msg, ok) {
      const el = document.getElementById('connect_status');
      el.textContent = msg;
      el.className = 'status ' + (ok ? 'ok' : 'err');
    }
    function setError(msg) {
      const el = document.getElementById('sql_error');
      if (!msg) { el.style.display = 'none'; el.textContent=''; return; }
      el.style.display = 'block';
      el.textContent = msg;
    }

    function applyTemplateVars(sqlRaw) {
      let sql = sqlRaw;
      const hasLatLon = currentClick.lat !== null && currentClick.lon !== null;
      sql = sql.replaceAll('{{dist_m}}', String(currentClick.dist_m));
      if (hasLatLon) {
        sql = sql.replaceAll('{{lat}}', String(currentClick.lat));
        sql = sql.replaceAll('{{lon}}', String(currentClick.lon));
      }
      return sql;
    }

    function clearResults() {
      document.getElementById('results_head').innerHTML = '';
      document.getElementById('results_body').innerHTML = '';
      document.getElementById('rows_count').textContent = '';
      geoLayer.clearLayers();
      setError('');
    }

    function renderTable(rows) {
      if (!rows || !rows.length) { clearResults(); return; }
      const keys = Object.keys(rows[0]);
      const thead = '<tr>' + keys.map(k => `<th>${k}</th>`).join('') + '</tr>';
      const tbody = rows.map(r => {
        return '<tr>' + keys.map(k => `<td>${escapeHtml(formatCell(r[k]))}</td>`).join('') + '</tr>';
      }).join('');
      document.getElementById('results_head').innerHTML = thead;
      document.getElementById('results_body').innerHTML = tbody;
      document.getElementById('rows_count').textContent = rows.length + ' row(s)';
    }

    function formatCell(v) {
      if (v === null || v === undefined) return '';
      if (typeof v === 'object') {
        try { return JSON.stringify(v); } catch { return String(v); }
      }
      return String(v);
    }

    function escapeHtml(s) {
      return s.replaceAll('&', '&amp;').replaceAll('<', '&lt;').replaceAll('>', '&gt;');
    }

    function collectGeoJSON(rows) {
      const features = [];
      for (const r of rows) {
        // Accept common field names: geom / geojson / geometry
        const cand = r.geom ?? r.geojson ?? r.geometry ?? null;
        if (!cand) continue;
        try {
          const g = (typeof cand === 'string') ? JSON.parse(cand) : cand;
          // If it's already a Feature/FeatureCollection/Geometry
          if (g && (g.type === 'Feature' || g.type === 'FeatureCollection' || g.type === 'Point' || g.type === 'LineString' || g.type === 'Polygon' || g.type?.endsWith('Collection'))) {
            if (g.type === 'FeatureCollection') {
              for (const f of g.features) features.push(f);
            } else if (g.type === 'Feature') {
              features.push(g);
            } else {
              features.push({ type: 'Feature', properties: {}, geometry: g });
            }
          }
        } catch (e) {
          // ignore parse errors for non-geo rows
        }
      }
      if (!features.length) return null;
      return { type: 'FeatureCollection', features };
    }

    async function runSQL() {
      setError('');
      if (!sb) { setStatus('Not connected', false); return; }

      let sqlRaw = document.getElementById('sql_text').value;
      const sql = applyTemplateVars(sqlRaw);

      try {
        const { data, error } = await sb.rpc('run_open_sql', { sql_text: sql });
        if (error) throw error;
        renderTable(data);
        // Map rendering if there is geo
        geoLayer.clearLayers();
        const fc = collectGeoJSON(data);
        if (fc) {
          const layer = L.geoJSON(fc, {
            onEachFeature: (feat, lyr) => {
              const props = Object.assign({}, feat.properties);
              lyr.bindPopup('<pre style="margin:0; font-size:12px;">' + escapeHtml(JSON.stringify(props, null, 2)) + '</pre>');
            }
          });
          geoLayer.addLayer(layer);
          try { map.fitBounds(layer.getBounds(), { padding: [16,16] }); } catch {}
        }
      } catch (err) {
        setError(err.message || String(err));
      }
    }
  </script>
</body>
</html>