feat: routes /map /nav — Leaflet GPS/USBL + Chart.js depth viewer

viz/static/js/map.js

@@ -0,0 +1,50 @@
+const map = L.map('map').setView([43.17, 5.70], 13);
+L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
+  attribution: '© OSM contributors', maxZoom: 19
+}).addTo(map);
+
+const status = document.getElementById('status');
+let trackLayer = null;
+
+async function loadJobs() {
+  const res = await fetch('/nav/api/jobs');
+  const jobs = await res.json();
+  const sel = document.getElementById('job-select');
+  jobs.forEach(j => {
+    const opt = document.createElement('option');
+    opt.value = j.id;
+    opt.textContent = 'job_' + j.id;
+    sel.appendChild(opt);
+  });
+  const urlJob = new URLSearchParams(window.location.search).get('job');
+  const target = urlJob ? parseInt(urlJob) : (jobs.length > 0 ? jobs[0].id : null);
+  if (target) {
+    sel.value = target;
+    loadJob(target);
+  } else {
+    status.textContent = 'Aucun job disponible';
+  }
+}
+
+async function loadJob(jobId) {
+  status.textContent = 'Chargement job_' + jobId + '...';
+  const res = await fetch('/nav/api/job/' + jobId + '/nav');
+  const d = await res.json();
+  if (trackLayer) map.removeLayer(trackLayer);
+  if (!d.track || !d.track.x.length) {
+    status.textContent = 'Pas de données track pour job_' + jobId;
+    return;
+  }
+  const cx = d.track.x.reduce((a,b)=>a+b,0)/d.track.x.length;
+  const cy = d.track.y.reduce((a,b)=>a+b,0)/d.track.y.length;
+  const pts = d.track.x.map((x,i) => [43.17 + (d.track.y[i]-cy)*0.000009, 5.70 + (x-cx)*0.000009]);
+  trackLayer = L.polyline(pts, { color: '#4ade80', weight: 2 }).addTo(map);
+  map.fitBounds(trackLayer.getBounds());
+  status.textContent = 'job_' + jobId + ' — ' + d.n_poses + ' poses | PLY: ' + (d.ply_ready ? 'prêt' : 'non dispo');
+}
+
+document.getElementById('job-select').addEventListener('change', e => {
+  if (e.target.value) loadJob(parseInt(e.target.value));
+});
+
+loadJobs();