Add topology legend and node visibility filters.

Show color legend and allow filtering graph nodes by all/new/missing states after scan diff analysis.

Made-with: Cursor

web/index.html

@@ -31,6 +31,18 @@
       <button id="diffBtn">Сравнить</button>
     </div>
     <div id="status">Ожидание данных...</div>
+    <div style="margin: 6px 0 10px 0; font-size: 13px;">
+      Легенда:
+      <span style="display:inline-block;margin-left:8px;color:#2563eb;">● синий - обычный узел</span>
+      <span style="display:inline-block;margin-left:8px;color:#16a34a;">● зеленый - новый</span>
+      <span style="display:inline-block;margin-left:8px;color:#dc2626;">● красный - пропавший</span>
+      <span style="display:inline-block;margin-left:12px;">Фильтр:</span>
+      <select id="nodeFilter">
+        <option value="all">все</option>
+        <option value="new">только новые</option>
+        <option value="missing">только пропавшие</option>
+      </select>
+    </div>
     <pre id="diffBox" style="background:#f8fafc;border:1px solid #e5e7eb;border-radius:8px;padding:10px;white-space:pre-wrap;"></pre>
     <svg id="canvas" viewBox="0 0 1200 620"></svg>
 
@@ -45,10 +57,13 @@
       const latestBtn = document.getElementById("latestBtn");
       const diffBtn = document.getElementById("diffBtn");
       const fitBtn = document.getElementById("fitBtn");
+      const nodeFilter = document.getElementById("nodeFilter");
       const statusEl = document.getElementById("status");
       const diffBox = document.getElementById("diffBox");
       const svg = document.getElementById("canvas");
       const NS = "http://www.w3.org/2000/svg";
+      let lastTopology = null;
+      let lastHighlight = null;
 
       function setStatus(text) { statusEl.textContent = text; }
       function setDiff(text) { diffBox.textContent = text; }
@@ -59,8 +74,17 @@
 
       function drawTopology(data, highlight = null) {
         clearSVG();
-        const nodes = data.nodes || [];
+        let nodes = data.nodes || [];
         const edges = data.edges || [];
+        const filter = nodeFilter.value || "all";
+        if (highlight && (filter === "new" || filter === "missing")) {
+          nodes = nodes.filter(n => {
+            const isNew = highlight.newHosts && highlight.newHosts.has(n.ip);
+            const isMissing = highlight.missingHosts && highlight.missingHosts.has(n.ip);
+            return filter === "new" ? isNew : isMissing;
+          });
+        }
+        const visibleIPs = new Set(nodes.map(n => n.ip));
         const byIP = new Map();
         nodes.forEach(n => byIP.set(n.ip, n));
 
@@ -79,6 +103,8 @@
         edges.forEach(e => {
           const s = pos.get(e.source_ip);
           if (!s) return;
+          if (!visibleIPs.has(e.source_ip)) return;
+          if (e.target_ip && !visibleIPs.has(e.target_ip)) return;
           const t = pos.get(e.target_ip) || { x: s.x + 30, y: s.y + 30 };
 
           const line = document.createElementNS(NS, "line");
@@ -165,7 +191,9 @@
             return;
           }
           const data = await res.json();
-          drawTopology(data);
+          lastTopology = data;
+          lastHighlight = null;
+          drawTopology(data, null);
           setStatus(`Готово. Узлов: ${data.nodes?.length || 0}, связей: ${data.edges?.length || 0}`);
         } catch (e) {
           setStatus(`Ошибка загрузки: ${e.message}`);
@@ -216,10 +244,13 @@
           const topoRes = await fetch(`/api/scans/${encodeURIComponent(toId)}/topology?limit=5000`);
           if (topoRes.ok) {
             const topo = await topoRes.json();
-            drawTopology(topo, {
+            const highlight = {
               newHosts: new Set(d.new_hosts || []),
               missingHosts: new Set(d.missing_hosts || []),
-            });
+            };
+            lastTopology = topo;
+            lastHighlight = highlight;
+            drawTopology(topo, highlight);
           }
           setStatus(
             `Diff готов: +hosts ${d.new_hosts?.length || 0}, -hosts ${d.missing_hosts?.length || 0}, +links ${d.new_links?.length || 0}, -links ${d.missing_links?.length || 0}`
@@ -244,6 +275,11 @@
       fitBtn.addEventListener("click", () => {
         svg.setAttribute("viewBox", "0 0 1200 620");
       });
+      nodeFilter.addEventListener("change", () => {
+        if (lastTopology) {
+          drawTopology(lastTopology, lastHighlight);
+        }
+      });
       setDiff("Diff будет показан здесь...");
       loadScanOptions();
     </script>