(() => {
  const $ = (sel) => document.querySelector(sel);
  const canvas = $("#topo");
  const ctx = canvas.getContext("2d");

  const state = {
    data: null,
    viewMode: "status",
    layoutMode: "orbit",
    clusterHubs: [],
    laneGuides: [],
    subnet: "all",
    model: null,
    groupHint: null,
    kpiFocus: null,
    selectedId: null,
    inventoryCache: {},
    inventoryLoadingId: null,
    notifiedEventKeys: new Set(),
    lastPulse: 0,
    filters: {
      connected: false,
      powered: false,
      servers: true,
      idrac: false,
      hasPower: false,
      ghostLinks: false,
      pulseLinks: true,
      minWatts: 0,
      search: "",
    },
    cam: { x: 0, y: 0, scale: 1 },
    nodes: [],
    hub: null,
    dragging: false,
    last: null,
    hoverId: null,
    connectNode: null,
    pulseT: 0,
    modelColors: new Map(),
    subnetColors: new Map(),
  };

  const PALETTE = [
    "#00a8e8", "#3dffe0", "#ffb020", "#7ec8ff", "#3dffa0",
    "#ff7a59", "#c4a7ff", "#f0e68c", "#5eead4", "#f472b6",
  ];

  function colorFor(map, key) {
    if (!map.has(key)) map.set(key, PALETTE[map.size % PALETTE.length]);
    return map.get(key);
  }

  function statusColor(status) {
    const s = String(status || "");
    if (s === "1000" || s === "0") return "#3dffa0";
    if (s === "2000" || s === "2") return "#ffb020";
    if (s === "3000" || s === "3" || s === "4000") return "#ff5c5c";
    return "#7a93a8";
  }

  function powerColor(watts) {
    if (watts == null) return "#3a4a5a";
    if (watts < 200) return "#3dffa0";
    if (watts < 450) return "#00a8e8";
    if (watts < 650) return "#ffb020";
    return "#ff5c5c";
  }

  function nodeColor(n) {
    switch (state.viewMode) {
      case "power":
        return powerColor(n.watts);
      case "connection":
        return n.connected ? "#3dffe0" : "#ff5c5c";
      case "model":
        return colorFor(state.modelColors, n.model || "?");
      case "subnet":
        return colorFor(state.subnetColors, n.subnet || "?");
      default:
        if (!n.connected) return "#5a6a7a";
        return statusColor(n.status);
    }
  }

  function visibleDevices() {
    const d = state.data;
    if (!d) return [];
    const f = state.filters;
    const q = (f.search || "").trim().toLowerCase();

    // Type filters are INCLUDE toggles:
    // - Servers on  => include servers
    // - iDRACs on   => include iDRACs
    // - both off    => show nothing (do not silently show all)
    const includeServers = !!f.servers;
    const includeIdrac = !!f.idrac;
    if (!includeServers && !includeIdrac) return [];

    return (d.devices || []).filter((n) => {
      if (state.subnet !== "all" && n.subnet !== state.subnet) return false;
      if (state.model && n.model !== state.model) return false;

      const isServer = !!n.is_server;
      const isIdrac = !!n.is_idrac;
      const typeOk =
        (includeServers && isServer) ||
        (includeIdrac && isIdrac);
      if (!typeOk) return false;

      if (f.connected && !n.connected) return false;
      if (f.powered && !n.powered_on) return false;
      if (f.hasPower && n.watts == null) return false;
      if (f.minWatts > 0 && (n.watts == null || n.watts < f.minWatts)) return false;

      if (state.kpiFocus === "offline" && (n.connected || !n.is_server)) return false;
      if (state.kpiFocus === "connected" && !n.connected) return false;
      if (state.kpiFocus === "powered" && !n.powered_on) return false;
      if (state.kpiFocus === "idracs" && !n.is_idrac) return false;
      if (state.kpiFocus === "power" && n.watts == null) return false;

      if (q) {
        const hay = [n.name, n.model, n.service_tag, n.ip, n.subnet]
          .filter(Boolean)
          .join(" ")
          .toLowerCase();
        if (!hay.includes(q)) return false;
      }
      return true;
    });
  }

  function groupBySubnet(devices) {
    const bySubnet = new Map();
    for (const n of devices) {
      const k = n.subnet || "unknown";
      if (!bySubnet.has(k)) bySubnet.set(k, []);
      bySubnet.get(k).push(n);
    }
    return [...bySubnet.keys()].sort().map((k) => ({ cidr: k, members: bySubnet.get(k) }));
  }

  function nodeRadius(n) {
    return n.connected ? 8 : 5.5;
  }

  function setTargets(nodes) {
    // preserve current x/y for lerp; first time seed from target
    const prev = new Map(state.nodes.map((n) => [n.id, n]));
    for (const n of nodes) {
      const p = prev.get(n.id);
      if (p && Number.isFinite(p.x)) {
        n.x = p.x;
        n.y = p.y;
      } else {
        n.x = n.tx;
        n.y = n.ty;
      }
    }
    state.nodes = nodes;
  }

  function layoutOrbit(devices, cx, cy, w, h) {
    const groups = groupBySubnet(devices);
    const ringBase = Math.min(w, h) * 0.18;
    const nodes = [];
    groups.forEach((g, si) => {
      const ring = ringBase + si * Math.min(70, Math.max(42, 360 / Math.max(groups.length, 1)));
      g.members.forEach((n, i) => {
        const a = (i / Math.max(g.members.length, 1)) * Math.PI * 2 - Math.PI / 2 + si * 0.15;
        const jitter = (n.id % 7) * 2.2;
        nodes.push({
          ...n,
          tx: cx + Math.cos(a) * (ring + jitter),
          ty: cy + Math.sin(a) * (ring + jitter),
          r: nodeRadius(n),
          depth: 1,
        });
      });
    });
    state.clusterHubs = [];
    state.laneGuides = [];
    setTargets(nodes);
  }

  function layoutGalaxy(devices, cx, cy, w, h) {
    const groups = groupBySubnet(devices);
    const nodes = [];
    const arms = Math.max(groups.length, 1);
    const maxR = Math.min(w, h) * 0.42;
    groups.forEach((g, si) => {
      const armAngle = (si / arms) * Math.PI * 2;
      g.members.forEach((n, i) => {
        const t = (i + 1) / (g.members.length + 1);
        const r = 70 + t * maxR;
        const twist = t * 3.2 + armAngle;
        const wobble = Math.sin(i * 1.7 + si) * 12;
        nodes.push({
          ...n,
          tx: cx + Math.cos(twist) * r + Math.cos(twist + Math.PI / 2) * wobble * 0.35,
          ty: cy + Math.sin(twist) * r + Math.sin(twist + Math.PI / 2) * wobble * 0.35,
          r: nodeRadius(n),
          depth: 0.6 + t * 0.8,
          arm: si,
        });
      });
    });
    state.clusterHubs = [];
    state.laneGuides = [];
    setTargets(nodes);
  }

  function layoutClusters(devices, cx, cy, w, h) {
    const groups = groupBySubnet(devices);
    const nodes = [];
    const hubs = [];
    const R = Math.min(w, h) * 0.32;
    groups.forEach((g, si) => {
      const a = (si / Math.max(groups.length, 1)) * Math.PI * 2 - Math.PI / 2;
      const hx = cx + Math.cos(a) * R;
      const hy = cy + Math.sin(a) * R;
      hubs.push({ x: hx, y: hy, label: g.cidr, color: colorFor(state.subnetColors, g.cidr) });
      const localR = 28 + Math.min(90, g.members.length * 4.5);
      g.members.forEach((n, i) => {
        const la = (i / Math.max(g.members.length, 1)) * Math.PI * 2;
        nodes.push({
          ...n,
          tx: hx + Math.cos(la) * localR,
          ty: hy + Math.sin(la) * localR,
          r: nodeRadius(n),
          depth: 1,
          cluster: si,
        });
      });
    });
    state.clusterHubs = hubs;
    state.laneGuides = [];
    setTargets(nodes);
  }

  function layoutLanes(devices, cx, cy, w, h) {
    const groups = groupBySubnet(devices);
    const nodes = [];
    const guides = [];
    const top = 70;
    const bottom = h - 50;
    const span = Math.max(bottom - top, 120);
    groups.forEach((g, si) => {
      const y = top + (groups.length <= 1 ? span / 2 : (si / (groups.length - 1 || 1)) * span);
      guides.push({ y, label: g.cidr, color: colorFor(state.subnetColors, g.cidr) });
      g.members.forEach((n, i) => {
        const t = g.members.length <= 1 ? 0.5 : i / (g.members.length - 1);
        const x = 90 + t * (w - 160);
        const bob = Math.sin(i * 0.9 + si) * 10;
        nodes.push({
          ...n,
          tx: x,
          ty: y + bob,
          r: nodeRadius(n),
          depth: 1,
          lane: si,
        });
      });
    });
    state.clusterHubs = [];
    state.laneGuides = guides;
    // hub left side
    state.hub = { x: 48, y: cy, r: 26 };
    setTargets(nodes);
  }

  function layoutHelix(devices, cx, cy, w, h) {
    const list = [...devices].sort((a, b) => Number(b.connected) - Number(a.connected) || (b.watts || 0) - (a.watts || 0));
    const nodes = [];
    const turns = 2.4;
    list.forEach((n, i) => {
      const t = list.length <= 1 ? 0.5 : i / (list.length - 1);
      const angle = t * Math.PI * 2 * turns;
      const y = 60 + t * (h - 120);
      const amp = Math.min(w, h) * 0.28;
      // perspective: scale by "depth"
      const depth = 0.45 + 0.55 * (0.5 + 0.5 * Math.sin(angle));
      const x = cx + Math.cos(angle) * amp * depth;
      nodes.push({
        ...n,
        tx: x,
        ty: y + Math.sin(angle * 2) * 8,
        r: (n.connected ? 7 : 4.5) * (0.75 + depth * 0.55),
        depth,
        helixT: t,
      });
    });
    state.clusterHubs = [];
    state.laneGuides = [];
    setTargets(nodes);
  }

  function layout() {
    const devices = visibleDevices();
    const w = canvas.clientWidth;
    const h = canvas.clientHeight;
    const cx = w / 2;
    const cy = h / 2;
    if (state.layoutMode !== "lanes") {
      state.hub = { x: cx, y: cy, r: 28 };
    }
    switch (state.layoutMode) {
      case "galaxy":
        layoutGalaxy(devices, cx, cy, w, h);
        break;
      case "clusters":
        layoutClusters(devices, cx, cy, w, h);
        break;
      case "lanes":
        layoutLanes(devices, cx, cy, w, h);
        break;
      case "helix":
        layoutHelix(devices, cx, cy, w, h);
        break;
      default:
        layoutOrbit(devices, cx, cy, w, h);
    }
  }

  function resize() {
    const dpr = Math.min(window.devicePixelRatio || 1, 2);
    const w = canvas.clientWidth;
    const h = canvas.clientHeight;
    canvas.width = Math.floor(w * dpr);
    canvas.height = Math.floor(h * dpr);
    ctx.setTransform(dpr, 0, 0, dpr, 0, 0);
    layout();
  }

  function drawHub(hub, t) {
    const hubGlow = 16 + 6 * Math.sin(t * 0.05);
    const g = ctx.createRadialGradient(hub.x, hub.y, 4, hub.x, hub.y, hubGlow + 20);
    g.addColorStop(0, "rgba(0,118,206,0.55)");
    g.addColorStop(1, "rgba(0,118,206,0)");
    ctx.fillStyle = g;
    ctx.beginPath();
    ctx.arc(hub.x, hub.y, hubGlow + 20, 0, Math.PI * 2);
    ctx.fill();
    ctx.beginPath();
    ctx.arc(hub.x, hub.y, hub.r, 0, Math.PI * 2);
    ctx.fillStyle = "#0076ce";
    ctx.fill();
    ctx.strokeStyle = "#3dffe0";
    ctx.lineWidth = 2;
    ctx.stroke();
    ctx.fillStyle = "#fff";
    ctx.font = "700 11px IBM Plex Sans, sans-serif";
    ctx.textAlign = "center";
    ctx.textBaseline = "middle";
    ctx.fillText("OME", hub.x, hub.y);
  }

  function drawPulseLink(x0, y0, x1, y1, connected, t, id, alphaScale) {
    if (!connected && !state.filters.ghostLinks) return;
    const animate = state.filters.pulseLinks !== false;
    const alpha = connected
      ? (animate ? (0.55 + 0.35 * Math.sin(t * 0.05 + id)) : 0.72) * alphaScale
      : 0.06 * alphaScale;
    // glow underlay for live OME links
    if (connected) {
      ctx.beginPath();
      ctx.moveTo(x0, y0);
      ctx.lineTo(x1, y1);
      ctx.strokeStyle = `rgba(0,168,232,${(animate ? 0.22 : 0.14) * alphaScale})`;
      ctx.lineWidth = animate ? 4.5 : 3.2;
      ctx.stroke();
    }
    ctx.beginPath();
    ctx.moveTo(x0, y0);
    ctx.lineTo(x1, y1);
    ctx.strokeStyle = connected ? `rgba(61,255,224,${alpha})` : `rgba(90,106,122,${0.14 * alphaScale})`;
    ctx.lineWidth = connected ? 2.4 : 0.8;
    ctx.stroke();
    if (connected && animate) {
      // dual packets along the link
      for (const off of [0, 0.5]) {
        const u = ((t * 0.018 + (id % 50) * 0.02 + off) % 1);
        const px = x0 + (x1 - x0) * u;
        const py = y0 + (y1 - y0) * u;
        ctx.beginPath();
        ctx.arc(px, py, 3.2, 0, Math.PI * 2);
        ctx.fillStyle = "rgba(255,255,255,0.95)";
        ctx.fill();
        ctx.beginPath();
        ctx.arc(px, py, 5.5, 0, Math.PI * 2);
        ctx.strokeStyle = "rgba(61,255,224,0.55)";
        ctx.lineWidth = 1.5;
        ctx.stroke();
      }
    }
  }

  function drawDecor(w, h, hub, t) {
    const mode = state.layoutMode;
    if (mode === "orbit" || mode === "galaxy") {
      for (let i = 1; i <= 5; i++) {
        ctx.beginPath();
        ctx.arc(hub.x, hub.y, 70 * i * 0.5, 0, Math.PI * 2);
        ctx.strokeStyle = `rgba(0,168,232,${0.035 + i * 0.012})`;
        ctx.lineWidth = 1;
        ctx.stroke();
      }
      if (mode === "galaxy") {
        // faint spiral guide
        ctx.beginPath();
        for (let i = 0; i <= 120; i++) {
          const u = i / 120;
          const ang = u * Math.PI * 4;
          const r = 40 + u * Math.min(w, h) * 0.4;
          const x = hub.x + Math.cos(ang) * r;
          const y = hub.y + Math.sin(ang) * r;
          if (i === 0) ctx.moveTo(x, y);
          else ctx.lineTo(x, y);
        }
        ctx.strokeStyle = "rgba(0,168,232,0.08)";
        ctx.lineWidth = 1.2;
        ctx.stroke();
      }
    } else if (mode === "clusters") {
      for (const ch of state.clusterHubs || []) {
        ctx.beginPath();
        ctx.arc(ch.x, ch.y, 52, 0, Math.PI * 2);
        ctx.strokeStyle = (ch.color || "#00a8e8") + "33";
        ctx.lineWidth = 1.2;
        ctx.stroke();
        ctx.beginPath();
        ctx.arc(ch.x, ch.y, 10, 0, Math.PI * 2);
        ctx.fillStyle = ch.color || "#00a8e8";
        ctx.globalAlpha = 0.55;
        ctx.fill();
        ctx.globalAlpha = 1;
        ctx.fillStyle = "rgba(232,244,255,0.7)";
        ctx.font = "500 9px IBM Plex Mono, monospace";
        ctx.textAlign = "center";
        ctx.fillText((ch.label || "").slice(0, 18), ch.x, ch.y - 18);
        drawPulseLink(hub.x, hub.y, ch.x, ch.y, true, t, (ch.label || "").length * 17, 0.55);
      }
    } else if (mode === "lanes") {
      for (const g of state.laneGuides || []) {
        ctx.beginPath();
        ctx.moveTo(70, g.y);
        ctx.lineTo(w - 30, g.y);
        ctx.strokeStyle = (g.color || "#00a8e8") + "44";
        ctx.lineWidth = 2;
        ctx.stroke();
        // moving dashes
        const dashX = ((t * 1.8) % (w - 100)) + 70;
        ctx.beginPath();
        ctx.arc(dashX, g.y, 2.5, 0, Math.PI * 2);
        ctx.fillStyle = g.color || "#3dffe0";
        ctx.fill();
        ctx.fillStyle = "rgba(232,244,255,0.55)";
        ctx.font = "500 9px IBM Plex Mono, monospace";
        ctx.textAlign = "left";
        ctx.fillText((g.label || "").slice(0, 16), 74, g.y - 8);
      }
    } else if (mode === "helix") {
      // depth rails
      for (let i = 0; i < 3; i++) {
        ctx.beginPath();
        for (let s = 0; s <= 80; s++) {
          const u = s / 80;
          const ang = u * Math.PI * 2 * 2.4 + i * 0.9;
          const y = 60 + u * (h - 120);
          const amp = Math.min(w, h) * 0.28;
          const depth = 0.45 + 0.55 * (0.5 + 0.5 * Math.sin(ang));
          const x = hub.x + Math.cos(ang) * amp * depth;
          if (s === 0) ctx.moveTo(x, y);
          else ctx.lineTo(x, y);
        }
        ctx.strokeStyle = `rgba(0,168,232,${0.06 + i * 0.03})`;
        ctx.lineWidth = 1;
        ctx.stroke();
      }
    }
  }

  function drawLinks(hub, t) {
    const mode = state.layoutMode;
    if (mode === "clusters") {
      // node to nearest cluster hub
      for (const n of state.nodes) {
        let best = null;
        let bestD = Infinity;
        for (const ch of state.clusterHubs || []) {
          const dx = n.x - ch.x;
          const dy = n.y - ch.y;
          const d = dx * dx + dy * dy;
          if (d < bestD) {
            bestD = d;
            best = ch;
          }
        }
        if (best) drawPulseLink(best.x, best.y, n.x, n.y, n.connected, t, n.id, 0.85);
      }
      return;
    }
    if (mode === "lanes") {
      for (const n of state.nodes) {
        drawPulseLink(hub.x, hub.y, n.x, n.y, n.connected, t, n.id, 0.55);
      }
      return;
    }
    if (mode === "helix") {
      // chain neighbors + faint hub links for connected
      const sorted = [...state.nodes].sort((a, b) => (a.helixT || 0) - (b.helixT || 0));
      for (let i = 0; i < sorted.length - 1; i++) {
        const a = sorted[i];
        const b = sorted[i + 1];
        drawPulseLink(a.x, a.y, b.x, b.y, a.connected || b.connected, t, a.id, 0.7);
      }
      for (const n of state.nodes) {
        if (n.connected) drawPulseLink(hub.x, hub.y, n.x, n.y, true, t, n.id, 0.25);
      }
      return;
    }
    // orbit / galaxy
    for (const n of state.nodes) {
      drawPulseLink(hub.x, hub.y, n.x, n.y, n.connected, t, n.id, 1);
    }
  }

  function drawNodes(t) {
    // draw far (small depth) first for helix
    const list = [...state.nodes].sort((a, b) => (a.depth || 1) - (b.depth || 1));
    for (const n of list) {
      // lerp toward target
      if (Number.isFinite(n.tx)) {
        n.x += (n.tx - n.x) * 0.14;
        n.y += (n.ty - n.y) * 0.14;
      }
      const col = nodeColor(n);
      const selected = n.id === state.selectedId;
      const depth = n.depth || 1;
      if (selected) {
        ctx.beginPath();
        ctx.arc(n.x, n.y, n.r + 6, 0, Math.PI * 2);
        ctx.strokeStyle = "#fff";
        ctx.lineWidth = 2;
        ctx.stroke();
      }
      if (n.watts != null && state.viewMode === "power") {
        ctx.beginPath();
        ctx.arc(n.x, n.y, n.r + 3 + Math.min(10, n.watts / 80), 0, Math.PI * 2);
        ctx.strokeStyle = col + "55";
        ctx.lineWidth = 2;
        ctx.stroke();
      }
      ctx.beginPath();
      ctx.arc(n.x, n.y, n.r, 0, Math.PI * 2);
      ctx.fillStyle = col;
      ctx.globalAlpha = 0.55 + 0.45 * Math.min(depth, 1);
      ctx.fill();
      ctx.globalAlpha = 1;
      if (state.cam.scale > 0.85) {
        ctx.fillStyle = "rgba(232,244,255,0.85)";
        ctx.font = "500 9px IBM Plex Mono, monospace";
        ctx.textAlign = "center";
        ctx.textBaseline = "top";
        const label =
          state.viewMode === "power" && n.watts != null
            ? `${Math.round(n.watts)}W`
            : (n.name || "").slice(0, 18);
        ctx.fillText(label, n.x, n.y + n.r + 3);
      }
    }
  }

  function draw() {
    const w = canvas.clientWidth;
    const h = canvas.clientHeight;
    // hard clear in device pixels (avoids trail artifacts with DPR transform)
    ctx.save();
    ctx.setTransform(1, 0, 0, 1, 0, 0);
    ctx.clearRect(0, 0, canvas.width, canvas.height);
    ctx.restore();

    ctx.save();
    ctx.translate(state.cam.x, state.cam.y);
    ctx.scale(state.cam.scale, state.cam.scale);

    const hub = state.hub;
    if (!hub) {
      ctx.restore();
      requestAnimationFrame(draw);
      return;
    }

        const t = state.pulseT;
    drawDecor(w, h, hub, t);
    drawLinks(hub, t);
    drawHub(hub, t);
    drawNodes(t);

    ctx.restore();

    if (!state.nodes.length) {
      ctx.fillStyle = "rgba(232,244,255,0.82)";
      ctx.font = "600 15px IBM Plex Sans, sans-serif";
      ctx.textAlign = "center";
      ctx.textBaseline = "middle";
      const f = state.filters;
      const tip = (!f.servers && !f.idrac)
        ? "No types selected — enable Servers and/or iDRACs in Filters"
        : "No devices match the current filters";
      ctx.fillText(tip, w / 2, h / 2);
      ctx.font = "500 12px IBM Plex Mono, monospace";
      ctx.fillStyle = "rgba(122,147,168,0.95)";
      ctx.fillText("Adjust Filters or click Reset filters", w / 2, h / 2 + 28);
    }

    if (state.filters.pulseLinks !== false) state.pulseT += 1;
    requestAnimationFrame(draw);
  }

  function screenToWorld(sx, sy) {
    return {
      x: (sx - state.cam.x) / state.cam.scale,
      y: (sy - state.cam.y) / state.cam.scale,
    };
  }

  function hitTest(sx, sy) {
    const p = screenToWorld(sx, sy);
    if (state.hub) {
      const dx = p.x - state.hub.x;
      const dy = p.y - state.hub.y;
      if (dx * dx + dy * dy <= (state.hub.r + 6) ** 2) return { type: "hub" };
    }
    let best = null;
    let bestD = Infinity;
    for (const n of state.nodes) {
      const dx = p.x - n.x;
      const dy = p.y - n.y;
      const d = dx * dx + dy * dy;
      if (d <= (n.r + 8) ** 2 && d < bestD) {
        bestD = d;
        best = n;
      }
    }
    return best ? { type: "node", node: best } : null;
  }


  const KPI_META = {
    total: { title: "All nodes", blurb: "Full OME inventory currently in cockpit." },
    servers: { title: "Servers", blurb: "Server-class devices (OME type 1000)." },
    idracs: { title: "iDRACs", blurb: "iDRAC / BMC endpoints discovered in OME." },
    connected: { title: "Connected", blurb: "Devices with live OME connection state." },
    offline: { title: "Offline", blurb: "Devices currently not connected to OME." },
    powered: { title: "Powered on", blurb: "Devices reporting powered-on state." },
    power: { title: "Live power", blurb: "Nodes with a live watt reading — hottest first." },
    avgw: { title: "Average watts / node", blurb: "Power samples contributing to fleet average." },
    samples: { title: "Power samples", blurb: "Devices included in the live power sample set." },
  };

  let kpiPopup = { key: null, selectedId: null, q: "", sort: "name" };

  function devicesForKpi(key) {
    const all = state.data?.devices || [];
    switch (key) {
      case "servers":
        return all.filter((d) => d.is_server);
      case "idracs":
        return all.filter((d) => d.is_idrac);
      case "connected":
        return all.filter((d) => d.connected);
      case "offline":
        return all.filter((d) => !d.connected);
      case "powered":
        return all.filter((d) => d.powered_on);
      case "power":
      case "avgw":
      case "samples":
        return all.filter((d) => d.watts != null);
      case "total":
      default:
        return all.slice();
    }
  }

  function sortKpiDevices(list) {
    const sort = kpiPopup.sort || "name";
    const arr = list.slice();
    if (sort === "watts") arr.sort((a, b) => (b.watts || 0) - (a.watts || 0));
    else if (sort === "status") arr.sort((a, b) => String(a.status || "").localeCompare(String(b.status || "")));
    else if (sort === "subnet") arr.sort((a, b) => String(a.subnet || "").localeCompare(String(b.subnet || "")));
    else arr.sort((a, b) => String(a.name || "").localeCompare(String(b.name || "")));
    return arr;
  }

  function filterKpiDevices(list) {
    const q = (kpiPopup.q || "").trim().toLowerCase();
    if (!q) return list;
    return list.filter((d) =>
      [d.name, d.ip, d.model, d.service_tag, d.subnet, d.status]
        .filter(Boolean)
        .join(" ")
        .toLowerCase()
        .includes(q)
    );
  }

  function kpiSummaryHtml(key, list) {
    const connected = list.filter((d) => d.connected).length;
    const offline = list.length - connected;
    const powered = list.filter((d) => d.powered_on).length;
    const withW = list.filter((d) => d.watts != null);
    const watts = withW.reduce((a, d) => a + (d.watts || 0), 0);
    const subnets = new Set(list.map((d) => d.subnet).filter(Boolean)).size;
    const pills = [
      `${list.length} in view`,
      `${connected} connected`,
      `${offline} offline`,
      `${powered} powered`,
      withW.length ? `${Math.round(watts)} W sampled` : "no power samples",
      `${subnets} subnets`,
    ];
    if (key === "power" || key === "avgw" || key === "samples") {
      const top = sortKpiDevices(withW).slice(0, 1)[0];
      if (top) pills.push(`hottest ${top.name?.slice(0, 22)} ${Math.round(top.watts)}W`);
    }
    return pills.map((p) => `<span class="pill">${escapeHtml(p)}</span>`).join("");
  }

  function renderKpiDetail(node) {
    const el = $("#kpi-detail");
    if (!el) return;
    if (!node) {
      el.innerHTML = `<p class="hint">Select a system on the left for live context and actions.</p>`;
      return;
    }
    const alerts = (state.data?.alerts || []).filter((a) => a.device_id === node.id).slice(0, 5);
    el.innerHTML = `
      <h3>${escapeHtml(node.name || "device")}</h3>
      <p class="meta">${escapeHtml(node.model || "—")} · ${escapeHtml(node.service_tag || "no tag")} · id ${node.id}</p>
      <div class="badge-row">
        <span class="badge ${node.connected ? "on" : "off"}">${node.connected ? "CONNECTED" : "OFFLINE"}</span>
        <span class="badge ${node.powered_on ? "on" : "off"}">${node.powered_on ? "POWERED ON" : "POWER N/A"}</span>
        ${node.watts != null ? `<span class="badge power">${Math.round(node.watts)} W</span>` : ""}
        ${node.is_idrac ? `<span class="badge">iDRAC</span>` : ""}
        ${node.is_server ? `<span class="badge">SERVER</span>` : ""}
      </div>
      <div class="kpi-kv">
        <div class="row"><span class="k">Service Tag</span><span class="v"><code>${escapeHtml(node.service_tag || "—")}</code></span></div>
        <div class="row"><span class="k">IP</span><span class="v">${escapeHtml(node.ip || "—")}</span></div>
        <div class="row"><span class="k">Subnet</span><span class="v">${escapeHtml(node.subnet || "—")}</span></div>
        <div class="row"><span class="k">Status</span><span class="v">${escapeHtml(node.status || "—")}</span></div>
        <div class="row"><span class="k">Avg / peak</span><span class="v">${node.avg_watts != null ? Math.round(node.avg_watts) + " W" : "—"} / ${node.peak_watts != null ? Math.round(node.peak_watts) + " W" : "—"}</span></div>
        <div class="row"><span class="k">Last status</span><span class="v">${escapeHtml(node.last_status_time || "—")}</span></div>
      </div>
      <div class="kpi-actions">
        <button type="button" class="btn primary" data-kpi-act="focus">Focus on map</button>
        <button type="button" class="btn conn-link" data-kpi-act="ssh" ${node.ip ? "" : "disabled"}>SSH terminal</button>
        <button type="button" class="btn conn-link" data-kpi-act="rdp" ${node.ip ? "" : "disabled"}>RDP popout</button>
        <button type="button" class="btn" data-kpi-act="connect">Quick Connect</button>
        <button type="button" class="btn" data-kpi-act="inventory">Inspector + inventory</button>
        <button type="button" class="btn" data-kpi-act="chat">Ask Cockpit chat</button>
        ${node.idrac_url ? `<a class="btn conn-link" href="${escapeAttr(node.idrac_url)}" target="_blank" rel="noopener">iDRAC Web</a>` : ""}
      </div>
      <div class="inv-section">
        <h3>Related alerts</h3>
        ${
          alerts.length
            ? alerts
                .map(
                  (a) =>
                    `<div class="inv-line">${escapeHtml(a.severity)} · ${escapeHtml((a.message || "").slice(0, 120))}</div>`
                )
                .join("")
            : `<p class="hint">No alerts for this node in the current feed.</p>`
        }
      </div>`;
  }

  function renderKpiPopup() {
    const key = kpiPopup.key;
    if (!key) return;
    const meta = KPI_META[key] || { title: key, blurb: "" };
    const raw = devicesForKpi(key);
    const list = sortKpiDevices(filterKpiDevices(raw));
    $("#kpi-title").textContent = meta.title;
    $("#kpi-sub").textContent = `${meta.blurb} · ${list.length} shown of ${raw.length}`;
    $("#kpi-summary").innerHTML = kpiSummaryHtml(key, raw);

    const listEl = $("#kpi-list");
    if (!list.length) {
      listEl.innerHTML = `<p class="hint">No systems match this KPI / search.</p>`;
      renderKpiDetail(null);
      return;
    }
    if (kpiPopup.selectedId == null || !list.some((d) => d.id === kpiPopup.selectedId)) {
      kpiPopup.selectedId = list[0].id;
    }
    listEl.innerHTML = list
      .slice(0, 200)
      .map((d) => {
        const bits = [
          d.ip || "no IP",
          d.connected ? "up" : "down",
          d.watts != null ? Math.round(d.watts) + "W" : null,
          d.subnet,
        ]
          .filter(Boolean)
          .join(" · ");
        return `<button type="button" class="kpi-item${d.id === kpiPopup.selectedId ? " active" : ""}" data-kpi-device="${d.id}">
          <span class="t">${escapeHtml(d.name || "device")}</span>
          <span class="s">${escapeHtml(bits)}</span>
        </button>`;
      })
      .join("");
    const selected = list.find((d) => d.id === kpiPopup.selectedId) || null;
    renderKpiDetail(selected);
  }

  function openKpiPopup(key) {
    kpiPopup.key = key;
    kpiPopup.selectedId = null;
    kpiPopup.q = "";
    const search = $("#kpi-search");
    if (search) search.value = "";
    const modal = $("#kpi-modal");
    const scrim = $("#scrim");
    modal?.classList.remove("hidden");
    modal?.setAttribute("aria-hidden", "false");
    scrim?.classList.add("open");
    if (scrim) scrim.dataset.mode = "kpi";
    renderKpiPopup();
  }

  function closeKpiPopup() {
    const modal = $("#kpi-modal");
    modal?.classList.add("hidden");
    modal?.setAttribute("aria-hidden", "true");
    const scrim = $("#scrim");
    if (scrim?.dataset.mode === "kpi") {
      scrim.classList.remove("open");
      delete scrim.dataset.mode;
    }
  }

  function applyKpiAsFilter(key) {
    state.kpiFocus = key;
    // Align type filters so the map can show the KPI set
    if (key === "idracs") {
      state.filters.idrac = true;
      state.filters.servers = false;
    } else if (key === "servers" || key === "offline" || key === "powered" || key === "connected" || key === "total") {
      state.filters.servers = true;
      // keep idrac optional for total/connected/offline breadth
      if (key === "total" || key === "connected" || key === "offline") {
        state.filters.idrac = true;
      }
    }
    if (key === "connected") state.filters.connected = true;
    if (key === "powered") state.filters.powered = true;
    if (key === "power" || key === "avgw" || key === "samples") {
      state.filters.hasPower = true;
      state.viewMode = "power";
      $("#view-modes")?.querySelectorAll(".chip").forEach((c) =>
        c.classList.toggle("active", c.dataset.mode === "power")
      );
    }
    syncFilterInputs();
    refreshLists();
    layout();
    snapNodes();
    fitCameraToNodes();
    updateFocusContext();
    showToast(`Map filter: ${KPI_META[key]?.title || key}`);
  }


  function renderKpis() {
    const s = state.data?.summary || {};
    const items = [
      { key: "total", label: "Nodes", v: s.total ?? "—", cls: "" },
      { key: "servers", label: "Servers", v: s.servers ?? "—", cls: "" },
      { key: "idracs", label: "iDRACs", v: s.idracs ?? "—", cls: "" },
      { key: "connected", label: "Connected", v: s.connected ?? "—", cls: "" },
      { key: "offline", label: "Offline", v: s.offline ?? "—", cls: "warn" },
      { key: "powered", label: "Powered on", v: s.powered_on ?? "—", cls: "" },
      {
        key: "power",
        label: "Live power",
        v: s.total_watts != null ? `${Math.round(s.total_watts)} W` : "—",
        cls: "power",
      },
      {
        key: "avgw",
        label: "Avg / node",
        v: s.avg_node_watts != null ? `${Math.round(s.avg_node_watts)} W` : "—",
        cls: "power",
      },
      {
        key: "samples",
        label: "Power samples",
        v: s.power_samples ?? "—",
        cls: "",
      },
    ];
    $("#kpi-strip").innerHTML = items
      .map(
        (it) => `
      <button type="button" class="kpi ${it.cls}${state.kpiFocus === it.key ? " active" : ""}" data-kpi="${it.key}">
        <span class="v">${it.v}</span>
        <span class="l">${it.label}</span>
      </button>`
      )
      .join("");
  }

  function renderSubnets() {
    const subs = state.data?.subnets || [];
    const html = [
      `<button type="button" class="card${state.subnet === "all" ? " active" : ""}" data-subnet="all">
        <span class="t">All networks</span>
        <span class="s">${state.data?.summary?.total ?? 0} nodes · ${state.data?.summary?.total_watts != null ? Math.round(state.data.summary.total_watts) + " W" : "—"}</span>
      </button>`,
      ...subs.map(
        (s) => `<button type="button" class="card${state.subnet === s.cidr ? " active" : ""}" data-subnet="${s.cidr}">
        <span class="t">${s.cidr}</span>
        <span class="s">${s.connected}/${s.count} connected${s.watts != null ? ` · ${Math.round(s.watts)} W` : ""}</span>
      </button>`
      ),
    ];
    $("#subnet-list").innerHTML = html.join("");
  }

  function renderModels() {
    const models = state.data?.models || [];
    $("#model-list").innerHTML = [
      `<button type="button" class="card${state.model == null ? " active" : ""}" data-model="">
        <span class="t">All models</span>
        <span class="s">${models.reduce((a, m) => a + m.count, 0)} servers</span>
      </button>`,
      ...models.map(
        (m) => `<button type="button" class="card${state.model === m.name ? " active" : ""}" data-model="${escapeAttr(m.name)}">
        <span class="t">${escapeHtml(m.name)}</span>
        <span class="s">${m.count} nodes</span>
      </button>`
      ),
    ].join("");
  }

  function renderGroups() {
    const groups = state.data?.groups || [];
    $("#group-list").innerHTML = groups.length
      ? groups
          .map(
            (g) => `<button type="button" class="card" data-group="${escapeAttr(g.name)}">
          <span class="t">${escapeHtml(g.name)}</span>
          <span class="s">OME group · id ${g.id}</span>
        </button>`
          )
          .join("")
      : `<p class="hint">No groups loaded</p>`;
  }

  function renderLegend() {
    const el = $("#legend");
    if (state.viewMode === "power") {
      el.innerHTML = `
        <span style="--c:#3dffa0"> &lt;200W</span>
        <span style="--c:#00a8e8">200–450W</span>
        <span style="--c:#ffb020">450–650W</span>
        <span style="--c:#ff5c5c">&gt;650W</span>
        <span style="--c:#3a4a5a">geen reading</span>`;
    } else if (state.viewMode === "connection") {
      el.innerHTML = `<span style="--c:#3dffe0">connected</span><span style="--c:#ff5c5c">offline</span>`;
    } else if (state.viewMode === "model") {
      el.innerHTML = [...state.modelColors.entries()]
        .slice(0, 6)
        .map(([k, c]) => `<span style="--c:${c}">${escapeHtml(k.slice(0, 22))}</span>`)
        .join("");
    } else if (state.viewMode === "subnet") {
      el.innerHTML = [...state.subnetColors.entries()]
        .slice(0, 6)
        .map(([k, c]) => `<span style="--c:${c}">${escapeHtml(k)}</span>`)
        .join("");
    } else {
      el.innerHTML = `
        <span style="--c:#3dffa0">healthy</span>
        <span style="--c:#ffb020">warning</span>
        <span style="--c:#ff5c5c">critical</span>
        <span style="--c:#5a6a7a">offline</span>`;
    }
  }

  function renderTicker() {
    const d = state.data;
    if (!d) return;
    const ome = d.ome || {};
    const s = d.summary || {};
    const ctx = d.context || {};
    const sev = ctx.alert_severity || {};
    $("#ticker").innerHTML = `
      <button type="button" data-tick="ome">${escapeHtml(ome.name || "OME")} ${escapeHtml(ome.version || "")}</button>
      <span class="sep">·</span>
      <button type="button" data-tick="pulse">pulse #${d.pulse ?? 0}</button>
      <span class="sep">·</span>
      <button type="button" data-tick="power">${s.total_watts != null ? Math.round(s.total_watts) + " W live" : "power pending"}</button>
      <span class="sep">·</span>
      <button type="button" data-tick="connected">${s.connected ?? 0} connected</button>
      <span class="sep">·</span>
      <button type="button" data-tick="alerts">${sev.Critical ?? 0} crit / ${sev.Warning ?? 0} warn</button>
      <span class="sep">·</span>
      <button type="button" data-tick="visible">${state.nodes.length} visible</button>
      <span class="sep">·</span>
      <span>updated ${d.updated_at ? new Date(d.updated_at * 1000).toLocaleTimeString() : "—"}</span>
    `;
  }

  function escapeHtml(s) {
    return String(s ?? "")
      .replace(/&/g, "&amp;")
      .replace(/</g, "&lt;")
      .replace(/>/g, "&gt;")
      .replace(/"/g, "&quot;");
  }
  function escapeAttr(s) {
    return escapeHtml(s).replace(/'/g, "&#39;");
  }

  function sevClass(sev) {
    const s = String(sev || "").toLowerCase();
    if (s.includes("crit")) return "critical";
    if (s.includes("warn")) return "warning";
    return "info";
  }

  function relTime(ts) {
    if (!ts) return "—";
    let t;
    if (typeof ts === "number") t = ts * (ts > 1e12 ? 1 : 1000);
    else {
      // OME: "2026-07-16 23:36:33.858"
      const d = Date.parse(String(ts).replace(" ", "T") + "Z");
      t = Number.isFinite(d) ? d : Date.parse(String(ts));
    }
    if (!Number.isFinite(t)) return String(ts).slice(0, 19);
    const sec = Math.max(0, Math.round((Date.now() - t) / 1000));
    if (sec < 60) return sec + "s ago";
    if (sec < 3600) return Math.floor(sec / 60) + "m ago";
    if (sec < 86400) return Math.floor(sec / 3600) + "h ago";
    return Math.floor(sec / 86400) + "d ago";
  }

  function updateFocusContext() {
    const el = $("#ctx-focus");
    if (!el) return;
    const bits = [];
    bits.push("layout " + (state.layoutMode || "orbit"));
    bits.push("color " + (state.viewMode || "status"));
    bits.push(state.subnet === "all" ? "all networks" : state.subnet);
    if (state.model) bits.push(state.model);
    const types = [];
    if (state.filters.servers) types.push("servers");
    if (state.filters.idrac) types.push("iDRACs");
    bits.push(types.length ? types.join("+") : "no types");
    if (state.filters.connected) bits.push("connected");
    if (state.filters.powered) bits.push("powered");
    if (state.filters.hasPower) bits.push("has W");
    if (state.filters.minWatts > 0) bits.push("≥" + state.filters.minWatts + "W");
    if (state.filters.pulseLinks === false) bits.push("pulse off");
    if (state.filters.search) bits.push("“" + state.filters.search.slice(0, 18) + "”");
    if (state.selectedId) {
      const n = (state.data?.devices || []).find((d) => d.id === state.selectedId);
      if (n) bits.push("node " + (n.name || "").slice(0, 22));
    }
    bits.push(state.nodes.length + " visible");
    el.textContent = "Focus: " + bits.join(" · ");
  }

  function renderContext() {
    const d = state.data;
    const ctx = d?.context || {};
    const s = d?.summary || {};
    const live = $("#ctx-live-text");
    if (live) {
      const age = d?.updated_at ? relTime(d.updated_at) : "—";
      live.textContent =
        (ctx.focus_hint || "Realtime context") +
        " · pulse #" +
        (d?.pulse ?? 0) +
        " · " +
        age;
    }
    const stats = $("#ctx-stats");
    if (stats) {
      const sev = ctx.alert_severity || {};
      stats.innerHTML = `
        <button type="button" class="ctx-stat danger" data-ctx="critical">
          <span class="v">${sev.Critical ?? 0}</span><span class="l">Critical</span>
        </button>
        <button type="button" class="ctx-stat warn" data-ctx="warning">
          <span class="v">${sev.Warning ?? 0}</span><span class="l">Warning</span>
        </button>
        <button type="button" class="ctx-stat" data-ctx="events">
          <span class="v">${(d?.events || []).length}</span><span class="l">Fleet deltas</span>
        </button>
        <button type="button" class="ctx-stat" data-ctx="hottest">
          <span class="v">${s.total_watts != null ? Math.round(s.total_watts) + "W" : "—"}</span><span class="l">Live power</span>
        </button>`;
    }

    // alerts in left rail
    const al = $("#alert-list");
    if (al) {
      const alerts = (d?.alerts || []).slice(0, 12);
      if (!alerts.length) {
        al.innerHTML = `<p class="hint">No alerts in this snapshot</p>`;
      } else {
        al.innerHTML = alerts
          .map(
            (a) => `<button type="button" class="card alert-card" data-alert-device="${a.device_id ?? ""}" data-alert-id="${a.id ?? ""}">
            <span class="t">${escapeHtml(a.severity)} · ${escapeHtml((a.device || "OME").slice(0, 28))}</span>
            <span class="s">${escapeHtml((a.message || "").slice(0, 110))}${a.time ? " · " + escapeHtml(relTime(a.time)) : ""}</span>
          </button>`
          )
          .join("");
      }
    }

    // live feed overlay: merge events + alerts
    const body = $("#ctx-feed-body");
    const meta = $("#ctx-feed-meta");
    if (meta) {
      meta.textContent =
        (ctx.alerts_total != null ? ctx.alerts_total + " alerts total" : "alerts…") +
        (ctx.events_new ? ` · +${ctx.events_new} delta` : "");
    }
    if (body) {
      if ($("#ctx-feed")?.classList.contains("collapsed")) {
        body.innerHTML = "";
        updateFocusContext();
        return;
      }
      const items = [];
      for (const e of d?.events || []) {
        items.push({
          cls: sevClass(e.severity),
          title: e.title || e.kind,
          msg: e.text,
          sub: (e.kind || "delta") + " · " + relTime(e.ts),
          deviceId: e.device_id,
          sort: e.ts || 0,
        });
      }
      for (const a of (d?.alerts || []).slice(0, 15)) {
        let sort = 0;
        const parsed = Date.parse(String(a.time || "").replace(" ", "T") + "Z");
        sort = Number.isFinite(parsed) ? parsed / 1000 : 0;
        items.push({
          cls: sevClass(a.severity),
          title: (a.device || "OME") + " · " + (a.severity || ""),
          msg: a.message || "",
          sub: (a.category || "alert") + " · " + relTime(a.time),
          deviceId: a.device_id,
          sort,
        });
      }
      // hottest quick context
      for (const h of ctx.hottest || []) {
        items.push({
          cls: "info",
          title: "Hot · " + (h.name || "").slice(0, 24),
          msg: Math.round(h.watts) + " W · " + (h.subnet || ""),
          sub: "power ranking",
          deviceId: h.id,
          sort: (d?.updated_at || 0) + (h.watts || 0) / 1e6,
        });
      }
      items.sort((x, y) => (y.sort || 0) - (x.sort || 0));
      body.innerHTML = items
        .slice(0, 24)
        .map(
          (it) => `<button type="button" class="feed-item ${it.cls}" data-feed-device="${it.deviceId ?? ""}">
          <span class="ft">${escapeHtml(it.title)}</span>
          <span class="fm">${escapeHtml((it.msg || "").slice(0, 140))}</span>
          <span class="fs">${escapeHtml(it.sub)}</span>
        </button>`
        )
        .join("");
    }
    updateFocusContext();
  }

  function focusDeviceId(id) {
    if (id == null || id === "") return;
    const nid = Number(id);
    const n = (state.data?.devices || []).find((d) => d.id === nid || d.id === id);
    if (!n) return;
    state.selectedId = n.id;
    // ensure visible: clear blocking filters lightly
    showInspector(n);
    // pan toward node if laid out
    const laid = state.nodes.find((x) => x.id === n.id);
    if (laid) {
      const w = canvas.clientWidth;
      const h = canvas.clientHeight;
      state.cam.x = w / 2 - laid.x * state.cam.scale;
      state.cam.y = h / 2 - laid.y * state.cam.scale;
    }
    updateFocusContext();
  }

  function snapNodes() {
    for (const n of state.nodes) {
      if (Number.isFinite(n.tx)) {
        n.x = n.tx;
        n.y = n.ty;
      }
    }
  }

  function fitCameraToNodes(opts = {}) {
    const nodes = state.nodes;
    const w = canvas.clientWidth;
    const h = canvas.clientHeight;
    if (!w || !h) {
      state.cam = { x: 0, y: 0, scale: 1 };
      return;
    }
    if (!nodes.length) {
      state.cam = { x: 0, y: 0, scale: 1 };
      return;
    }

    let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
    const expand = (x, y, r = 0) => {
      minX = Math.min(minX, x - r);
      maxX = Math.max(maxX, x + r);
      minY = Math.min(minY, y - r);
      maxY = Math.max(maxY, y + r);
    };
    for (const n of nodes) {
      const x = Number.isFinite(n.tx) ? n.tx : n.x;
      const y = Number.isFinite(n.ty) ? n.ty : n.y;
      expand(x, y, (n.r || 6) + 14);
    }
    if (state.hub) expand(state.hub.x, state.hub.y, (state.hub.r || 28) + 16);
    for (const ch of state.clusterHubs || []) expand(ch.x, ch.y, 56);

    const bw = Math.max(80, maxX - minX);
    const bh = Math.max(80, maxY - minY);
    // Leave room for ctx-bar (top) + legend/feed (bottom)
    const padX = opts.padX ?? 70;
    const padY = opts.padY ?? 110;
    const availW = Math.max(120, w - padX * 2);
    const availH = Math.max(120, h - padY * 2);
    const minScale = opts.minScale ?? 0.28;
    const maxScale = opts.maxScale ?? 1.35;
    let scale = Math.min(availW / bw, availH / bh);
    scale = Math.min(maxScale, Math.max(minScale, scale));
    const cx = (minX + maxX) / 2;
    const cy = (minY + maxY) / 2;
    // Bias slightly downward so top ctx-bar does not cover the hub
    const yBias = 18;
    state.cam.scale = scale;
    state.cam.x = w / 2 - cx * scale;
    state.cam.y = h / 2 - cy * scale + yBias;
  }

  function resetView() {
    // Ensure canvas metrics are current, then rebuild layout in screen space
    const dpr = Math.min(window.devicePixelRatio || 1, 2);
    const w = canvas.clientWidth;
    const h = canvas.clientHeight;
    if (w && h) {
      canvas.width = Math.floor(w * dpr);
      canvas.height = Math.floor(h * dpr);
      ctx.setTransform(dpr, 0, 0, dpr, 0, 0);
    }
    layout();
    snapNodes();
    // Designed layouts assume identity camera; then nudge to fit with padding
    state.cam = { x: 0, y: 0, scale: 1 };
    fitCameraToNodes();
    updateFocusContext();
    showToast("View reset · fit to fleet");
  }

  function syncFilterInputs() {
    const f = state.filters;
    const set = (id, val) => {
      const el = document.getElementById(id);
      if (!el) return;
      if (el.type === "checkbox") el.checked = !!val;
      else el.value = val;
    };
    set("f-connected", f.connected);
    set("f-powered", f.powered);
    set("f-servers", f.servers);
    set("f-idrac", f.idrac);
    set("f-has-power", f.hasPower);
    set("f-ghost-links", f.ghostLinks);
    set("f-pulse-links", f.pulseLinks !== false);
    set("f-min-watts", f.minWatts || 0);
    const lab = $("#min-w-label");
    if (lab) lab.textContent = String(f.minWatts || 0);
    const search = $("#search");
    if (search) search.value = f.search || "";
  }

  function readFiltersFromDom() {
    const on = (id) => !!document.getElementById(id)?.checked;
    state.filters.connected = on("f-connected");
    state.filters.powered = on("f-powered");
    state.filters.servers = on("f-servers");
    state.filters.idrac = on("f-idrac");
    state.filters.hasPower = on("f-has-power");
    state.filters.ghostLinks = on("f-ghost-links");
    state.filters.pulseLinks = on("f-pulse-links");
    const mw = document.getElementById("f-min-watts");
    state.filters.minWatts = mw ? Number(mw.value) || 0 : 0;
    state.filters.search = $("#search")?.value || "";
  }

  function clearFilters() {
    state.filters = {
      connected: false,
      powered: false,
      servers: true,
      idrac: false,
      hasPower: false,
      ghostLinks: false,
      pulseLinks: true,
      minWatts: 0,
      search: "",
    };
    state.subnet = "all";
    state.model = null;
    state.kpiFocus = null;
    state.groupHint = null;
    syncFilterInputs();
    refreshLists();
    layout();
    snapNodes();
    state.cam = { x: 0, y: 0, scale: 1 };
    fitCameraToNodes();
    updateFocusContext();
    showToast("Filters reset · Servers on");
  }

  function showToast(msg, opts = {}) {
    let el = $("#toast");
    if (!el) {
      el = document.createElement("div");
      el.id = "toast";
      el.className = "toast";
      document.body.appendChild(el);
    }
    el.textContent = msg;
    el.classList.toggle("toast-alert", !!opts.alert);
    el.classList.add("show");
    clearTimeout(showToast._t);
    const ms = opts.ms != null ? opts.ms : opts.alert ? 8000 : 2200;
    showToast._t = setTimeout(() => el.classList.remove("show"), ms);
  }

  function pushNotifyCard(ev) {
    const host = $("#notify-stack");
    if (!host) return;
    const card = document.createElement("button");
    card.type = "button";
    card.className = `notify-card ${ev.severity || "info"}`;
    card.dataset.deviceId = ev.device_id ?? "";
    card.innerHTML = `
      <span class="nc-kicker">${escapeHtml(ev.kind === "device_removed" ? "Removed" : "New on network")}</span>
      <strong class="nc-title">${escapeHtml(ev.title || "Fleet change")}</strong>
      <span class="nc-text">${escapeHtml(ev.text || "")}</span>
      <span class="nc-meta">${escapeHtml(relTime(ev.ts))}</span>`;
    card.addEventListener("click", () => {
      if (ev.device_id != null) focusDeviceId(ev.device_id);
      card.remove();
    });
    host.prepend(card);
    while (host.children.length > 6) host.lastElementChild.remove();
    setTimeout(() => card.classList.add("show"), 20);
    setTimeout(() => {
      card.classList.remove("show");
      setTimeout(() => card.remove(), 400);
    }, 14000);
  }

  function handleFleetNotifications(data) {
    const notes = data?.context?.notifications || [];
    const events = data?.events || [];
    const candidates = [
      ...notes,
      ...events.filter((e) => e.kind === "device_new" || e.kind === "device_removed"),
    ];
    for (const ev of candidates) {
      const key = `${ev.kind}:${ev.device_id}:${Math.floor(ev.ts || 0)}`;
      if (state.notifiedEventKeys.has(key)) continue;
      state.notifiedEventKeys.add(key);
      if (state.notifiedEventKeys.size > 200) {
        state.notifiedEventKeys = new Set([...state.notifiedEventKeys].slice(-100));
      }
      const role = ev.role || (String(ev.title || "").toLowerCase().includes("idrac") ? "iDRAC" : "server");
      const msg =
        ev.kind === "device_removed"
          ? `${role} removed: ${ev.name || ev.title || "device"}`
          : `New ${role} on network: ${ev.name || ev.title || "device"} · ${ev.ip || ""}`.trim();
      showToast(msg, { alert: true, ms: 9000 });
      pushNotifyCard(ev);
    }
  }

  function hideTip() {
    state.hoverId = null;
    const tip = $("#node-tip");
    if (tip) tip.classList.add("hidden");
  }

  function showTip(node, clientX, clientY) {
    const tip = $("#node-tip");
    if (!tip || !node) return;
    state.hoverId = node.id;
    const watts = node.watts != null ? `${Math.round(node.watts)} W` : "no power sample";
    tip.innerHTML = `
      <p class="nt-name">${escapeHtml(node.name || "node")}</p>
      <p class="nt-meta">${escapeHtml(node.model || "—")} · ST ${escapeHtml(node.service_tag || "—")}<br/>
      ${node.connected ? "connected" : "offline"} · ${node.powered_on ? "powered on" : "power n/a"} · ${escapeHtml(watts)}<br/>
      ${escapeHtml(node.ip || "no IP")} · ${escapeHtml(node.subnet || "")}</p>
      <p class="nt-hint">Double-click · Quick Connect</p>`;
    tip.classList.remove("hidden");
    const pad = 14;
    let x = clientX + pad;
    let y = clientY + pad;
    const tw = tip.offsetWidth || 220;
    const th = tip.offsetHeight || 100;
    if (x + tw > window.innerWidth - 8) x = clientX - tw - pad;
    if (y + th > window.innerHeight - 8) y = clientY - th - pad;
    tip.style.left = `${Math.max(8, x)}px`;
    tip.style.top = `${Math.max(8, y)}px`;
  }

  function relatedAlerts(node) {
    const id = node?.id;
    return (state.data?.alerts || []).filter((a) => a.device_id === id).slice(0, 3);
  }

  function openConnect(node) {
    if (!node || node.id == null) return;
    state.connectNode = node;
    const modal = $("#connect-modal");
    const scrim = $("#scrim");
    if (!modal) return;
    $("#connect-title").textContent = node.name || "Device";
    $("#connect-sub").textContent = `${node.model || "—"} · ${node.service_tag || "no tag"} · OME #${node.id}`;
    $("#connect-badges").innerHTML = `
      <span class="badge ${node.connected ? "on" : "off"}">${node.connected ? "CONNECTED" : "OFFLINE"}</span>
      <span class="badge ${node.powered_on ? "on" : "off"}">${node.powered_on ? "POWERED ON" : "POWER N/A"}</span>
      ${node.watts != null ? `<span class="badge power">${Math.round(node.watts)} W</span>` : ""}
      ${node.is_idrac ? `<span class="badge">iDRAC</span>` : ""}
      ${node.is_server ? `<span class="badge">SERVER</span>` : ""}`;
    const alerts = relatedAlerts(node);
    $("#connect-context").innerHTML = `
      <div class="modal-ctx-item"><span class="k">IP</span><span class="v">${escapeHtml(node.ip || "—")}</span></div>
      <div class="modal-ctx-item"><span class="k">Subnet</span><span class="v">${escapeHtml(node.subnet || "—")}</span></div>
      <div class="modal-ctx-item"><span class="k">Last status</span><span class="v">${escapeHtml(node.last_status_time || "—")}</span></div>
      <div class="modal-ctx-item"><span class="k">Alerts</span><span class="v">${alerts.length ? alerts[0].severity + " · " + escapeHtml((alerts[0].message || "").slice(0, 42)) : "none in live feed"}</span></div>`;

    const ip = node.ip;
    const idrac = node.idrac_url || (ip ? `https://${ip}` : null);
    $("#connect-grid").innerHTML = `
      ${idrac ? `<a class="connect-tile primary conn-link" href="${escapeAttr(idrac)}" target="_blank" rel="noopener">
        <span class="ct-ico">▣</span>
        <span class="ct-t">iDRAC Web</span>
        <span class="ct-s">BMC console · ${escapeHtml(ip)}</span>
      </a>` : `<div class="connect-tile" style="opacity:.45"><span class="ct-t">iDRAC Web</span><span class="ct-s">No management IP</span></div>`}
      ${ip ? `<button type="button" class="connect-tile conn-link" id="btn-modal-ssh">
        <span class="ct-ico">〉_</span>
        <span class="ct-t">SSH terminal</span>
        <span class="ct-s">Login with your username · ${escapeHtml(ip)}</span>
      </button>` : ""}
      ${ip ? `<button type="button" class="connect-tile conn-link" id="btn-modal-rdp">
        <span class="ct-ico">▭</span>
        <span class="ct-t">RDP popout</span>
        <span class="ct-s">${node.rdp_host ? `OS ${escapeHtml(node.rdp_host)}` : node.os_hostname ? `Resolve ${escapeHtml(node.os_hostname)}` : `Edit host · ${escapeHtml(ip)}`}${node.is_windows ? " · Windows" : ""}</span>
      </button>` : ""}
      <button type="button" class="connect-tile" id="btn-modal-ai">

        <span class="ct-ico">✦</span>
        <span class="ct-t">Ask AI</span>
        <span class="ct-s">OpenManage AI about this node</span>
      </button>
      <button type="button" class="connect-tile" id="btn-modal-inventory">
        <span class="ct-ico">☰</span>
        <span class="ct-t">Inspector</span>
        <span class="ct-s">Load full inventory</span>
      </button>`;

    modal.classList.remove("hidden");
    modal.setAttribute("aria-hidden", "false");
    scrim?.classList.add("open");
    scrim.dataset.mode = "connect";

    $("#connect-grid").onclick = async (e) => {
      const copyBtn = e.target.closest("[data-copy]");
      if (copyBtn) {
        try {
          await navigator.clipboard.writeText(copyBtn.dataset.copy);
          showToast("SSH command copied");
        } catch (_) {
          showToast("Copy failed");
        }
        return;
      }
      if (e.target.closest("#btn-modal-ssh")) {
        closeConnect();
        window.cockpitSsh?.open(node);
        return;
      }
      if (e.target.closest("#btn-modal-rdp")) {
        closeConnect();
        window.cockpitRdp?.open(node);
        return;
      }
      if (e.target.closest("#btn-modal-ai")) {
        closeConnect();
        openAi(node);
        return;
      }
      if (e.target.closest("#btn-modal-inventory")) {
        closeConnect();
        showInspector(node);
        setTimeout(() => $("#btn-detail")?.click(), 50);
      }
    };
  }

  function closeConnect() {
    const modal = $("#connect-modal");
    modal?.classList.add("hidden");
    modal?.setAttribute("aria-hidden", "true");
    state.connectNode = null;
    const scrim = $("#scrim");
    if (scrim?.dataset.mode === "connect") {
      scrim.classList.remove("open");
      delete scrim.dataset.mode;
    }
  }

  function softRefreshInspector(node) {
    if (!node) return;
    const body = $("#inspector-body");
    if (!body || body.classList.contains("hidden")) {
      showInspector(node);
      return;
    }
    // Same node already open: update live fields only — keep inventory panel.
    if (state.selectedId !== node.id) {
      showInspector(node);
      return;
    }
    const head = body.querySelector(".insp-head h2");
    if (head && head.textContent !== (node.name || "")) {
      showInspector(node);
      return;
    }
    const badges = body.querySelector(".badge-row");
    if (badges) {
      badges.innerHTML = `
        <span class="badge ${node.connected ? "on" : "off"}">${node.connected ? "CONNECTED" : "OFFLINE"}</span>
        <span class="badge ${node.powered_on ? "on" : "off"}">${node.powered_on ? "POWERED ON" : "POWER OFF / N/A"}</span>
        ${node.watts != null ? `<span class="badge power">${Math.round(node.watts)} W</span>` : ""}
        ${node.is_idrac ? `<span class="badge">iDRAC</span>` : ""}
        ${node.is_server ? `<span class="badge">SERVER</span>` : ""}`;
    }
    const setKv = (label, value) => {
      for (const row of body.querySelectorAll(".kv-row")) {
        const k = row.querySelector(".k");
        const v = row.querySelector(".v");
        if (k && v && k.textContent === label) {
          if (label === "Subnet") return; // keep jump button
          v.textContent = value;
        }
      }
    };
    setKv("IP", node.ip || "—");
    setKv("Status", node.status || "—");
    setKv("Avg W", node.avg_watts != null ? Math.round(node.avg_watts) + " W" : "—");
    setKv("Peak W", node.peak_watts != null ? Math.round(node.peak_watts) + " W" : "—");
    setKv("Energy", node.energy_kwh != null ? node.energy_kwh + " kWh" : "—");
    setKv("Last status", node.last_status_time || "—");
    setKv("Inventory", node.last_inventory_time || "—");
    updateFocusContext();
  }

    async function loadExpansionPreview(deviceId) {
    const mount = $("#warranty-compliance-mount");
    if (!mount) return;
    try {
      const r = await fetch(`/api/devices/${deviceId}/expansion`);
      if (!r.ok) return;
      const data = await r.json();
      const x = data.expansion || {};
      const mem = x.memory || {};
      const spec = x.spec || {};
      const findings = (x.findings || []).filter((f) => f.severity === "warning").slice(0, 2);
      const box = document.createElement("div");
      box.className = "inv-section";
      box.innerHTML = `<h3>Memory / expansion</h3>
        <div class="inv-line">${mem.total_gb ?? "—"} GB in ${mem.populated ?? 0} DIMMs · ${mem.empty ?? 0} empty slots · Dell max ${spec.max_memory_tb != null ? spec.max_memory_tb + " TB" : "—"}</div>
        <div class="inv-line">Disks ${x.disks?.installed ?? "—"} / ${spec.drive_bays_max ?? "—"} bays · PCIe max ${spec.pcie_slots_max ?? "—"}</div>
        ${findings.map((f) => `<div class="inv-line">${escapeHtml(f.text)}</div>`).join("")}
        <div class="inv-line"><button type="button" class="btn compact" id="btn-open-hw">Open full DIMM map &amp; Dell guidance</button></div>`;
      mount.appendChild(box);
      $("#btn-open-hw")?.addEventListener("click", () => {
        window.cockpitReports?.open?.();
        // slight delay for drawer open
        setTimeout(() => {
          if (window.cockpitReports) {
            window.cockpitReports.state = window.cockpitReports.state || {};
          }
          const st = document.querySelector('#reports-tabs [data-tab="hardware"]');
          st?.click();
          // set device after tab loads
          setTimeout(() => {
            const btn = document.querySelector(`[data-hw-id="${deviceId}"]`);
            btn?.click();
          }, 400);
        }, 200);
      });
    } catch (_) {
      /* ignore */
    }
  }

  async function loadWarrantyCompliance(deviceId) {
    const mount = $("#warranty-compliance-mount");
    if (!mount) return;
    try {
      const [wRes, cRes] = await Promise.all([
        fetch(`/api/devices/${deviceId}/warranty`),
        fetch(`/api/devices/${deviceId}/compliance`),
      ]);
      const w = wRes.ok ? await wRes.json() : { items: [] };
      const c = cRes.ok ? await cRes.json() : { components: [] };
      const primary = w.primary;
      const comps = (c.components || []).filter(
        (x) =>
          String(x.update_action || "").toUpperCase() === "UPGRADE" ||
          String(x.compliance_status || "").toUpperCase() === "CRITICAL"
      );
      let html = `<div class="inv-section"><h3>Warranty</h3>`;
      if (primary) {
        html += `<div class="inv-line">ST ${escapeHtml(primary.service_tag || "—")} · ${escapeHtml(primary.service_level || "—")}</div>
          <div class="inv-line">Ends ${escapeHtml(primary.end_date || "—")} · ${primary.days_remaining ?? "—"} days left</div>`;
      } else if ((w.items || []).length) {
        html += (w.items || [])
          .slice(0, 3)
          .map(
            (x) =>
              `<div class="inv-line">${escapeHtml(x.service_level || "—")} · ends ${escapeHtml(x.end_date || "—")} · ${x.days_remaining ?? "—"}d</div>`
          )
          .join("");
      } else {
        html += `<div class="inv-line">No warranty records in OME</div>`;
      }
      html += `</div><div class="inv-section"><h3>Dell catalog compliance</h3>`;
      if (c.device) {
        html += `<div class="inv-line">${escapeHtml(c.device.compliance_status || c.device.firmware_status || "—")} · baseline ${escapeHtml((c.baseline || {}).name || "—")}</div>`;
      }
      if (comps.length) {
        html += comps
          .slice(0, 8)
          .map(
            (x) =>
              `<div class="inv-line">${escapeHtml(x.component || "component")}: ${escapeHtml(x.current_version || "?")} → ${escapeHtml(x.catalog_version || "?")} ${x.dell_uri ? `<a href="${escapeAttr(x.dell_uri)}" target="_blank" rel="noopener">dell.com</a>` : ""}</div>`
          )
          .join("");
      } else if (c.device) {
        html += `<div class="inv-line">No upgrade components in baseline report</div>`;
      } else {
        html += `<div class="inv-line">Not in active Dell baseline report</div>`;
      }
      html += `</div>`;
      mount.innerHTML = html;
    } catch (err) {
      mount.innerHTML = `<p class="hint">Warranty/compliance unavailable</p>`;
    }
  }

  async function showInspector(node) {
    state.selectedId = node?.id ?? null;
    const empty = $("#inspector-empty");
    const body = $("#inspector-body");
    if (!node) {
      empty.classList.remove("hidden");
      body.classList.add("hidden");
      return;
    }
    empty.classList.add("hidden");
    body.classList.remove("hidden");
    body.innerHTML = `
      <div class="insp-head">
        <h2>${escapeHtml(node.name)}</h2>
        <p class="meta">${escapeHtml(node.model || "—")} · id ${node.id}</p>
      </div>
      <div class="badge-row">
        <span class="badge ${node.connected ? "on" : "off"}">${node.connected ? "CONNECTED" : "OFFLINE"}</span>
        <span class="badge ${node.powered_on ? "on" : "off"}">${node.powered_on ? "POWERED ON" : "POWER OFF / N/A"}</span>
        ${node.watts != null ? `<span class="badge power">${Math.round(node.watts)} W</span>` : ""}
        ${node.is_idrac ? `<span class="badge">iDRAC</span>` : ""}
        ${node.is_server ? `<span class="badge">SERVER</span>` : ""}
      </div>
      <div class="kv">
        <div class="kv-row st-row"><span class="k">Service Tag</span><span class="v st-value"><code>${escapeHtml(node.service_tag || "—")}</code>
          ${node.service_tag ? `<button type="button" class="btn ghost compact" id="btn-copy-st" title="Copy Service Tag">Copy</button>` : ""}
        </span></div>
        <div class="kv-row"><span class="k">IP</span><span class="v">${escapeHtml(node.ip || "—")}</span></div>
        <div class="kv-row"><span class="k">Subnet</span><span class="v"><button type="button" class="linkish" data-jump-subnet="${escapeAttr(node.subnet)}">${escapeHtml(node.subnet)}</button></span></div>
        <div class="kv-row"><span class="k">Model</span><span class="v">${escapeHtml(node.model || "—")}</span></div>
        <div class="kv-row"><span class="k">Status</span><span class="v">${escapeHtml(node.status)}</span></div>
        <div class="kv-row"><span class="k">Avg W</span><span class="v">${node.avg_watts != null ? Math.round(node.avg_watts) + " W" : "—"}</span></div>
        <div class="kv-row"><span class="k">Peak W</span><span class="v">${node.peak_watts != null ? Math.round(node.peak_watts) + " W" : "—"}</span></div>
        <div class="kv-row"><span class="k">Energy</span><span class="v">${node.energy_kwh != null ? node.energy_kwh + " kWh" : "—"}</span></div>
        <div class="kv-row"><span class="k">OME id</span><span class="v">${node.id}</span></div>
        <div class="kv-row"><span class="k">Last status</span><span class="v">${escapeHtml(node.last_status_time || "—")}</span></div>
        <div class="kv-row"><span class="k">Inventory</span><span class="v">${escapeHtml(node.last_inventory_time || "—")}</span></div>
      </div>
      <div id="warranty-compliance-mount" class="wc-mount"><p class="hint">Loading warranty &amp; Dell compliance…</p></div>
      <div class="action-stack">
        <button type="button" class="btn primary" id="btn-quick-connect">Quick Connect · iDRAC / SSH</button>
        ${node.idrac_url ? `<a class="btn conn-link" href="${escapeAttr(node.idrac_url)}" target="_blank" rel="noopener">iDRAC Web</a>` : ""}
        ${node.ip ? `<button type="button" class="btn conn-link" id="btn-ssh-term">SSH terminal · ${escapeHtml(node.ip)}</button>` : ""}
        ${node.ip ? `<button type="button" class="btn conn-link" id="btn-rdp-term">RDP popout · ${escapeHtml(node.rdp_host || node.os_hostname || node.ip)}</button>` : ""}
        <button type="button" class="btn" id="btn-detail">Load full inventory + app landscape</button>
        <button type="button" class="btn" id="btn-ask-ai">Ask OpenManage AI</button>
        <button type="button" class="btn ghost" id="btn-focus-model">Filter this model</button>
      </div>
      <div id="inv-mount"></div>
    `;

    body.querySelector("[data-jump-subnet]")?.addEventListener("click", (e) => {
      state.subnet = e.currentTarget.dataset.jumpSubnet;
      refreshLists();
      layout();
    });
    $("#btn-focus-model")?.addEventListener("click", () => {
      state.model = node.model;
      refreshLists();
      layout();
    });
    $("#btn-copy-st")?.addEventListener("click", async () => {
      try {
        await navigator.clipboard.writeText(node.service_tag);
        const btn = $("#btn-copy-st");
        if (btn) {
          btn.textContent = "Copied";
          setTimeout(() => {
            btn.textContent = "Copy";
          }, 1200);
        }
      } catch (_) {
        /* ignore */
      }
    });
    updateFocusContext();
    $("#btn-quick-connect")?.addEventListener("click", () => openConnect(node));
    $("#btn-ssh-term")?.addEventListener("click", () => window.cockpitSsh?.open(node));
    $("#btn-rdp-term")?.addEventListener("click", () => window.cockpitRdp?.open(node));
    $("#btn-ask-ai")?.addEventListener("click", () => openAi(node));
    loadWarrantyCompliance(node.id);
    loadExpansionPreview(node.id);
    const cachedInv = state.inventoryCache[node.id];
    if (cachedInv) {
      const mount = $("#inv-mount");
      if (mount) mount.innerHTML = cachedInv;
    }

    $("#btn-detail")?.addEventListener("click", async () => {
      const mount = $("#inv-mount");
      const deviceId = node.id;
      state.inventoryLoadingId = deviceId;
      mount.innerHTML = `<p class="hint">Loading full inventory + application landscape…</p>`;
      try {
        const r = await fetch(`/api/devices/${deviceId}`);
        const detail = await r.json();
        const inv = detail.inventory || {};
        const land = detail.landscape || {};
        const p = detail.power || {};

        const line = (s) => `<div class="inv-line">${escapeHtml(s)}</div>`;
        const section = (title, rows) => {
          if (!rows || !rows.length) return "";
          return `<div class="inv-section"><h3>${escapeHtml(title)} (${rows.length})</h3>${rows.join("")}</div>`;
        };

        let html = `<div class="inv-section"><h3>Power (live)</h3>
          <div class="inv-line">Instant ${p.watts ?? "—"} W · avg ${p.avg_watts ?? "—"} · peak ${p.peak_watts ?? "—"}</div>
          <div class="inv-line">Energy ${p.energy_kwh ?? "—"} kWh</div></div>`;

        // Application / firmware landscape first
        const osRows = (land.os || []).map((x) =>
          line(`${x.OsName || x.OperatingSystemName || "OS"} · ${x.OsVersion || ""} · host ${x.Hostname || "—"}`)
        );
        html += section("Operating system", osRows);

        const soft = (items, title) => {
          const rows = (items || []).slice(0, 40).map((x) =>
            line(
              `${x.DeviceDescription || x.SoftwareType || x.Name || "component"} · v${x.Version || "?"} · ${x.Status || ""} · ${x.InstallationDate || ""}`.trim()
            )
          );
          return section(title, rows);
        };
        html += soft(land.firmware, "Firmware landscape");
        html += soft(land.drivers, "Drivers");
        html += soft(land.applications, "Software / apps");
        if (!(land.firmware || []).length && (land.software || []).length) {
          html += soft(land.software, "Software inventory");
        }

        const mgmtRows = (land.management || []).map((x) => {
          const agents = (x.EndPointAgents || [])
            .map((a) => a.AgentName || a.ManagementProfile || a.AgentType || "")
            .filter(Boolean)
            .join(", ");
          return line(
            `${x.DnsName || x.InstrumentationName || "mgmt"} · ${x.IpAddress || ""} · MAC ${x.MacAddress || "—"}` +
              (agents ? ` · agents: ${agents}` : "")
          );
        });
        html += section("Management / agents", mgmtRows);

        const licRows = (land.licenses || []).slice(0, 20).map((x) =>
          line(`${x.LicenseDescription || x.EntitlementId || x.LicenseType || "license"} · ${x.LicenseStatus || x.Status || ""}`)
        );
        html += section("Licenses", licRows);

        const sections = [
          ["serverProcessors", "CPUs", (x) => `${x.ModelName || x.BrandName || x.Manufacturer || "CPU"} · ${x.CurrentSpeed || ""} MHz · ${x.NumberOfCores || "?"} cores · ${x.Status || ""}`],
          ["serverMemoryDevices", "Memory", (x) => `${x.Name || "DIMM"} · ${x.Size || "?"} · ${x.Speed || x.CurrentOperatingSpeed || ""} · ${x.Manufacturer || ""} · ${x.SerialNumber || ""}`],
          ["serverArrayDisks", "Disks", (x) => `${x.ModelNumber || x.SerialNumber || "disk"} · ${x.MediaType || ""} · ${x.Size || x.Capacity || "?"} · ${x.StatusString || x.Status || ""}`],
          ["serverRaidControllers", "RAID", (x) => `${x.Name || "RAID"} · FW ${x.FirmwareVersion || "?"} · cache ${x.CacheSizeInMb || "?"} MB · ${x.Status || ""}`],
          ["serverPowerSupplies", "PSUs", (x) => `${x.Name || x.Model || "PSU"} · ${x.OutputWatts || "?"} W · ${x.FirmwareVersion || ""} · ${x.Status || ""}`],
          ["serverNetworkInterfaces", "NICs", (x) => {
            const ports = (x.Ports || []).map((p) => p.ProductName || p.PermanentMACAddress || p.MacAddress || "").filter(Boolean).slice(0, 4).join(" | ");
            return `${x.ProductName || x.VendorName || "NIC"} · ${ports || x.PermanentMACAddress || ""}`;
          }],
          ["serverFcCards", "FC HBAs", (x) => `${x.ProductName || x.VendorName || "FC"} · ${x.WWN || x.PortName || ""}`],
          ["serverDellVideos", "GPUs / video", (x) => `${x.ProductName || x.Description || "video"} · ${x.Manufacturer || ""}`],
          ["serverDeviceCards", "Device cards", (x) => `${x.ProductName || x.Description || x.SlotName || "card"} · ${x.Manufacturer || ""}`],
          ["deviceBaseboards", "Baseboard", (x) => `${x.Manufacturer || ""} · ${x.ProductName || x.Model || ""} · SN ${x.SerialNumber || "—"}`],
          ["deviceFru", "FRU", (x) => `${x.Name || "FRU"} · ${x.Manufacturer || ""} · PN ${x.PartNumber || ""} · SN ${x.SerialNumber || ""}`],
          ["deviceLocation", "Location", (x) => `${x.Datacenter || ""} ${x.Room || ""} ${x.Aisle || ""} ${x.Rack || ""} U${x.Rackslot || x.RackSlot || ""}`.trim() || JSON.stringify(x).slice(0, 80)],
          ["subsystemRollupStatus", "Health rollup", (x) => `${x.SubsystemName || x.Type || "sub"} · ${x.Status || ""}`],
          ["serverStorageEnclosures", "Storage enclosures", (x) => `${x.Name || x.ProductName || "enclosure"} · ${x.Status || ""}`],
          ["serverVirtualFlashes", "Virtual flash", (x) => `${x.Name || "vFlash"} · ${x.Capacity || x.Size || ""} · ${x.Status || ""}`],
          ["serverBiosSystemProfileSettings", "BIOS profile", (x) => Object.entries(x).slice(0, 6).map(([k, v]) => `${k}=${v}`).join(" · ")],
          ["deviceCapabilities", "Capabilities", (x) => `CapabilityType ${x.CapabilityType ?? x.Id ?? "?"}`],
          ["serverSupportedPowerStates", "Power states", (x) => `PowerState ${x.PowerState ?? x.Id ?? "?"}`],
        ];
        for (const [key, title, fmt] of sections) {
          const rows = inv[key] || [];
          if (!rows.length) continue;
          html += section(
            title,
            rows.slice(0, 24).map((row) => line(fmt(row)))
          );
        }

        // Any remaining inventory keys not already shown
        const shown = new Set(sections.map((s) => s[0]).concat([
          "deviceSoftware", "serverOperatingSystems", "deviceManagement", "deviceLicense",
        ]));
        for (const [key, rows] of Object.entries(inv)) {
          if (shown.has(key) || !Array.isArray(rows) || !rows.length) continue;
          html += section(
            key,
            rows.slice(0, 12).map((row) =>
              line(
                typeof row === "object"
                  ? Object.entries(row).slice(0, 6).map(([k, v]) => `${k}=${v}`).join(" · ")
                  : String(row)
              )
            )
          );
        }

        html = html || `<p class="hint">No inventory available</p>`;
        state.inventoryCache[deviceId] = html;
        if (state.selectedId === deviceId) {
          const live = $("#inv-mount");
          if (live) live.innerHTML = html;
        }
      } catch (e) {
        const errHtml = `<p class="hint">Inventory failed: ${escapeHtml(e.message)}</p>`;
        if (state.selectedId === deviceId) {
          const live = $("#inv-mount");
          if (live) live.innerHTML = errHtml;
        }
      } finally {
        if (state.inventoryLoadingId === deviceId) state.inventoryLoadingId = null;
      }
    });
  }

  function showHubInspector() {
    const ome = state.data?.ome || {};
    const s = state.data?.summary || {};
    state.selectedId = null;
    $("#inspector-empty").classList.add("hidden");
    const body = $("#inspector-body");
    body.classList.remove("hidden");
    body.innerHTML = `
      <div class="insp-head">
        <h2>${escapeHtml(ome.name || "OpenManage Enterprise")}</h2>
        <p class="meta">v${escapeHtml(ome.version || "?")} · build ${escapeHtml(String(ome.build || "?"))}</p>
      </div>
      <div class="badge-row">
        <span class="badge on">HUB</span>
        <span class="badge power">${s.total_watts != null ? Math.round(s.total_watts) + " W fleet" : "power…"}</span>
      </div>
      <div class="kv">
        <div class="kv-row"><span class="k">FQDN</span><span class="v">${escapeHtml(ome.fqdn || "—")}</span></div>
        <div class="kv-row"><span class="k">API</span><span class="v">${escapeHtml(ome.url || "—")}</span></div>
        <div class="kv-row"><span class="k">Servers</span><span class="v">${s.servers ?? "—"}</span></div>
        <div class="kv-row"><span class="k">Connected</span><span class="v">${s.connected ?? "—"}</span></div>
        <div class="kv-row"><span class="k">Power samples</span><span class="v">${s.power_samples ?? "—"}</span></div>
      </div>
      <div class="action-stack">
        <a class="btn primary" href="${escapeAttr(ome.console_url || ome.url || "#")}" target="_blank" rel="noopener">Open OME console</a>
        <button type="button" class="btn" id="btn-ai-hub">Ask OpenManage AI about fleet</button>
      </div>`;
    $("#btn-ai-hub")?.addEventListener("click", () => openAi(null));
  }

  function openAi(node) {
    const url = state.data?.openwebui_url || "http://atc-portal01.dell-atc.lan:3080";
    $("#ai-frame").src = url;
    $("#ai-drawer").classList.add("open");
    $("#ai-drawer").setAttribute("aria-hidden", "false");
    const scrim = $("#scrim");
    scrim?.classList.add("open");
    if (scrim) scrim.dataset.mode = "ai";
    if (node) {
      console.info("Ask AI about", node.name, node.service_tag, node.watts);
    }
  }

  function closeAi() {
    $("#ai-drawer").classList.remove("open");
    $("#ai-drawer").setAttribute("aria-hidden", "true");
    const scrim = $("#scrim");
    if (scrim?.dataset.mode === "ai" || !scrim?.dataset.mode) {
      scrim?.classList.remove("open");
      if (scrim) delete scrim.dataset.mode;
    }
  }

  function refreshLists() {
    renderKpis();
    renderSubnets();
    renderModels();
    renderGroups();
    renderLegend();
    renderTicker();
    renderContext();
    const ome = state.data?.ome;
    if (ome) {
      $("#ome-meta").textContent = `OM Enterprise ${ome.version || "?"} · build ${ome.build || "?"} · live`;
    }
  }

  function applySnapshot(data) {
    state.data = data;
    handleFleetNotifications(data);
    try {
      window.dispatchEvent(new CustomEvent("cockpit-snapshot", { detail: data }));
      if (data.gpu) window.dispatchEvent(new CustomEvent("cockpit-gpu", { detail: data.gpu }));
    } catch (_) {}
    // warm color maps
    for (const d of data.devices || []) {
      colorFor(state.modelColors, d.model || "?");
      colorFor(state.subnetColors, d.subnet || "?");
    }
    refreshLists();
    layout();
    if (state.selectedId) {
      const n = (data.devices || []).find((x) => x.id === state.selectedId);
      if (n) softRefreshInspector(n);
    }
  }

  // events
  $("#layout-modes")?.addEventListener("click", (e) => {
    const btn = e.target.closest("[data-layout]");
    if (!btn) return;
    state.layoutMode = btn.dataset.layout;
    $("#layout-modes").querySelectorAll(".viz-card").forEach((c) => c.classList.toggle("active", c === btn));
    layout();
    snapNodes();
    state.cam = { x: 0, y: 0, scale: 1 };
    fitCameraToNodes();
    updateFocusContext();
  });

  $("#view-modes").addEventListener("click", (e) => {
    const btn = e.target.closest("[data-mode]");
    if (!btn) return;
    state.viewMode = btn.dataset.mode;
    $("#view-modes").querySelectorAll(".chip").forEach((c) => c.classList.toggle("active", c === btn));
    renderLegend();
    layout();
  });

  $("#subnet-list").addEventListener("click", (e) => {
    const btn = e.target.closest("[data-subnet]");
    if (!btn) return;
    state.subnet = btn.dataset.subnet;
    state.kpiFocus = null;
    refreshLists();
    layout();
  });

  $("#model-list").addEventListener("click", (e) => {
    const btn = e.target.closest("[data-model]");
    if (!btn) return;
    state.model = btn.dataset.model || null;
    refreshLists();
    layout();
  });

  $("#group-list").addEventListener("click", (e) => {
    const btn = e.target.closest("[data-group]");
    if (!btn) return;
    state.filters.search = btn.dataset.group || "";
    $("#search").value = state.filters.search;
    state.groupHint = btn.dataset.group;
    showInspector({
      id: null,
      name: `Group: ${btn.dataset.group}`,
      model: "OME Group",
      service_tag: "—",
      connected: true,
      powered_on: false,
      watts: null,
      avg_watts: null,
      peak_watts: null,
      energy_kwh: null,
      ip: null,
      subnet: "—",
      status: "group",
      is_idrac: false,
      is_server: false,
      idrac_url: null,
    });
    // note: OME groups aren't device-membership expanded here — search/filter by name hint
    layout();
  });

  $("#kpi-strip").addEventListener("click", (e) => {
    const btn = e.target.closest("[data-kpi]");
    if (!btn) return;
    const key = btn.dataset.kpi;
    openKpiPopup(key);
    // Keep strip highlight in sync with open context
    state.kpiFocus = key;
    renderKpis();
  });

  $("#btn-kpi-close")?.addEventListener("click", closeKpiPopup);
  $("#kpi-search")?.addEventListener("input", (e) => {
    kpiPopup.q = e.target.value || "";
    renderKpiPopup();
  });
  $("#kpi-sort")?.addEventListener("change", (e) => {
    kpiPopup.sort = e.target.value || "name";
    renderKpiPopup();
  });
  $("#btn-kpi-apply")?.addEventListener("click", () => {
    if (kpiPopup.key) applyKpiAsFilter(kpiPopup.key);
  });
  $("#btn-kpi-clear")?.addEventListener("click", () => {
    state.kpiFocus = null;
    state.filters.connected = false;
    state.filters.powered = false;
    state.filters.hasPower = false;
    state.filters.servers = true;
    state.filters.idrac = false;
    syncFilterInputs();
    refreshLists();
    layout();
    snapNodes();
    fitCameraToNodes();
    updateFocusContext();
    renderKpis();
    showToast("Map KPI filter cleared");
  });
  $("#kpi-list")?.addEventListener("click", (e) => {
    const btn = e.target.closest("[data-kpi-device]");
    if (!btn) return;
    kpiPopup.selectedId = Number(btn.dataset.kpiDevice);
    renderKpiPopup();
  });
  $("#kpi-detail")?.addEventListener("click", (e) => {
    const act = e.target.closest("[data-kpi-act]");
    if (!act) return;
    const node = (state.data?.devices || []).find((d) => d.id === kpiPopup.selectedId);
    if (!node) return;
    const a = act.dataset.kpiAct;
    if (a === "focus") {
      closeKpiPopup();
      focusDeviceId(node.id);
      showToast("Focused " + (node.name || ""));
    } else if (a === "ssh") {
      window.cockpitSsh?.open(node);
    } else if (a === "rdp") {
      window.cockpitRdp?.open(node);
    } else if (a === "connect") {
      closeKpiPopup();
      openConnect(node);
    } else if (a === "inventory") {
      closeKpiPopup();
      showInspector(node);
      setTimeout(() => $("#btn-detail")?.click(), 60);
    } else if (a === "chat") {
      closeKpiPopup();
      document.getElementById("btn-chat")?.click();
      setTimeout(() => {
        const input = document.getElementById("chat-input");
        if (input) {
          input.value = `Give operational context for ${node.name} (${node.ip || "no IP"}). Status ${node.status}, connected=${node.connected}, watts=${node.watts ?? "n/a"}. Suggest next actions for ATC admins.`;
          input.focus();
        }
      }, 150);
    }
  });

  $("#filters").addEventListener("change", (e) => {
    const t = e.target;
    readFiltersFromDom();
    if (t.id === "f-min-watts") {
      $("#min-w-label").textContent = String(state.filters.minWatts);
    }
    // Pulse-only toggle: no need to relayout
    if (t.id === "f-pulse-links") {
      updateFocusContext();
      showToast(state.filters.pulseLinks ? "Link pulse on" : "Link pulse off");
      return;
    }
    layout();
    snapNodes();
    fitCameraToNodes();
    renderTicker();
    updateFocusContext();
    if (!state.filters.servers && !state.filters.idrac) {
      showToast("Enable Servers and/or iDRACs to show nodes");
    }
  });

  $("#search").addEventListener("input", (e) => {
    state.filters.search = e.target.value;
    layout();
    renderTicker();
  });

  $("#ticker").addEventListener("click", (e) => {
    const btn = e.target.closest("[data-tick]");
    if (!btn) return;
    const k = btn.dataset.tick;
    if (k === "ome") showHubInspector();
    if (k === "power") {
      state.viewMode = "power";
      state.kpiFocus = "power";
      state.filters.hasPower = true;
      $("#f-has-power").checked = true;
      refreshLists();
      layout();
    }
    if (k === "connected") {
      state.kpiFocus = "connected";
      state.filters.connected = true;
      $("#f-connected").checked = true;
      refreshLists();
      layout();
    }
    if (k === "alerts") {
      if (window.cockpit?.openTriage) window.cockpit.openTriage("critical");
      else updateFocusContext();
    }
  });

  canvas.addEventListener("mousedown", (e) => {
    state.dragging = true;
    state.last = { x: e.clientX, y: e.clientY };
  });
  window.addEventListener("mouseup", () => {
    state.dragging = false;
  });
  canvas.addEventListener("mousemove", (e) => {
    if (state.dragging) {
      state.cam.x += e.clientX - state.last.x;
      state.cam.y += e.clientY - state.last.y;
      state.last = { x: e.clientX, y: e.clientY };
      hideTip();
      return;
    }
    const rect = canvas.getBoundingClientRect();
    const hit = hitTest(e.clientX - rect.left, e.clientY - rect.top);
    if (hit?.type === "node") showTip(hit.node, e.clientX, e.clientY);
    else hideTip();
  });
  canvas.addEventListener("mouseleave", hideTip);
  canvas.addEventListener("wheel", (e) => {
    e.preventDefault();
    const rect = canvas.getBoundingClientRect();
    const mx = e.clientX - rect.left;
    const my = e.clientY - rect.top;
    const before = screenToWorld(mx, my);
    const factor = e.deltaY > 0 ? 0.9 : 1.1;
    state.cam.scale = Math.min(3.5, Math.max(0.35, state.cam.scale * factor));
    const after = screenToWorld(mx, my);
    state.cam.x += (after.x - before.x) * state.cam.scale;
    state.cam.y += (after.y - before.y) * state.cam.scale;
  }, { passive: false });

  canvas.addEventListener("click", (e) => {
    const rect = canvas.getBoundingClientRect();
    const hit = hitTest(e.clientX - rect.left, e.clientY - rect.top);
    if (!hit) {
      showInspector(null);
      hideTip();
      return;
    }
    if (hit.type === "hub") {
      showHubInspector();
      return;
    }
    showInspector(hit.node);
  });
  canvas.addEventListener("dblclick", (e) => {
    e.preventDefault();
    const rect = canvas.getBoundingClientRect();
    const hit = hitTest(e.clientX - rect.left, e.clientY - rect.top);
    if (hit?.type === "node") {
      showInspector(hit.node);
      openConnect(hit.node);
    } else if (hit?.type === "hub") {
      showHubInspector();
    }
  });


  // Shared API for Ops desk / triage popup
  window.cockpit = {
    getState: () => state,
    focusDeviceId,
    openConnect,
    showInspector,
    openAi,
    relTime,
    escapeHtml,
    openTriage: null,
    openKpiPopup,
    closeKpiPopup,
  };

  // Realtime context interactivity
  $("#ctx-stats")?.addEventListener("click", (e) => {
    const btn = e.target.closest("[data-ctx]");
    if (!btn) return;
    if (window.cockpit.openTriage) window.cockpit.openTriage(btn.dataset.ctx);
  });
  $("#alert-list")?.addEventListener("click", (e) => {
    const btn = e.target.closest("[data-alert-device]");
    if (!btn) return;
    if (window.cockpit.openTriage) {
      window.cockpit.openTriage("all", {
        alertId: btn.dataset.alertId,
        deviceId: btn.dataset.alertDevice,
      });
    } else {
      focusDeviceId(btn.dataset.alertDevice);
    }
  });
  $("#ctx-feed-body")?.addEventListener("click", (e) => {
    const btn = e.target.closest("[data-feed-device]");
    if (!btn) return;
    if (window.cockpit.openTriage) {
      window.cockpit.openTriage("all", { deviceId: btn.dataset.feedDevice });
    } else {
      focusDeviceId(btn.dataset.feedDevice);
    }
  });

  function applyTheme(theme) {
    const t = theme === "dark" ? "dark" : "light";
    document.documentElement.setAttribute("data-theme", t);
    try {
      localStorage.setItem("cockpit_theme", t);
    } catch (_) {}
    const btn = $("#btn-theme");
    if (btn) {
      btn.dataset.theme = t;
      btn.title = t === "light" ? "Switch to dark theme" : "Switch to light theme";
      btn.setAttribute("aria-label", btn.title);
    }
  }
  applyTheme(localStorage.getItem("cockpit_theme") || "light");
  $("#btn-theme")?.addEventListener("click", () => {
    const cur = document.documentElement.getAttribute("data-theme") || "light";
    applyTheme(cur === "light" ? "dark" : "light");
  });

  $("#btn-reset-view").addEventListener("click", (e) => {
    e.preventDefault();
    e.stopPropagation();
    resetView();
  });
  $("#btn-clear-filters")?.addEventListener("click", (e) => {
    e.preventDefault();
    e.stopPropagation();
    clearFilters();
  });
  $("#btn-ai")?.addEventListener("click", () => openAi(null));
  $("#btn-ai-close").addEventListener("click", closeAi);
  $("#btn-connect-close")?.addEventListener("click", closeConnect);
  $("#scrim").addEventListener("click", () => {
    const mode = $("#scrim")?.dataset.mode;
    if (mode === "triage") document.getElementById("btn-triage-close")?.click();
    else if (mode === "kpi") closeKpiPopup();
    else if (mode === "connect") closeConnect();
    else if (mode === "chat-drawer" || mode === "ops-drawer" || mode === "ai-drawer") {
      /* ops.js also listens */
    } else closeAi();
  });
  $("#btn-ome-console").addEventListener("click", () => {
    const url = state.data?.ome?.console_url || state.data?.ome?.url;
    if (url) window.open(url, "_blank", "noopener");
  });

  // collapsible left-rail modules
  $("#left-rail")?.addEventListener("click", (e) => {
    const btn = e.target.closest(".rail-toggle");
    if (!btn) return;
    const block = btn.closest(".rail-block");
    if (!block) return;
    const open = block.classList.toggle("open");
    btn.setAttribute("aria-expanded", open ? "true" : "false");
  });

  window.addEventListener("keydown", (e) => {
    if (e.key === "Escape") {
      closeConnect();
      closeAi();
      closeKpiPopup();
      hideTip();
      document.getElementById("btn-triage-close")?.click();
    }
  });
  window.addEventListener("resize", resize);
  window.addEventListener("cockpit-feed-expand", () => {
    try { renderContext(); } catch (_) {}
  });

  async function boot() {
    try {
      const r = await fetch("/api/fleet");
      applySnapshot(await r.json());
    } catch (e) {
      console.error(e);
    }
    connectWs();
  }

  function connectWs() {
    const proto = location.protocol === "https:" ? "wss" : "ws";
    const ws = new WebSocket(`${proto}://${location.host}/ws/fleet`);
    ws.onmessage = (ev) => {
      try {
        const msg = JSON.parse(ev.data);
        if (msg.type === "snapshot" && msg.data) applySnapshot(msg.data);
        if (msg.type === "gpu" && msg.data) {
          if (state.data) state.data.gpu = msg.data;
          window.dispatchEvent(new CustomEvent("cockpit-gpu", { detail: msg.data }));
        }
      } catch (_) {}
    };
    ws.onclose = () => setTimeout(connectWs, 2500);
  }

  // Keep JS filter state in sync with checkbox defaults in HTML
  readFiltersFromDom();
  syncFilterInputs();
  resize();
  requestAnimationFrame(draw);
  boot();

  // style for inline link buttons in inspector
  const style = document.createElement("style");
  style.textContent = `.linkish{appearance:none;border:none;background:none;color:var(--dell-bright);font:inherit;font-family:var(--mono);padding:0;cursor:pointer;text-align:left}.linkish:hover{text-decoration:underline;color:#fff}`;
  document.head.appendChild(style);
})();