webui/topo: responsive PSU/firmware layout, stacked group cards, fix zero-CPU crash

PSU and firmware (BMC/BIOS) boxes were absolutely-positioned SVG rects in a
single fixed-width row with no wrap, so an arbitrary/larger count piled up
and overlapped once a board had more of either than fit in that row. Move
them to plain flex-wrap HTML below the diagram (Firmware row first, then
Power Supplies), which reflows naturally for any count. The main CPU/PCIe/
GPU diagram now scrolls horizontally (overflow-x:auto) instead of being
squashed to fit narrow viewports, matching the wide-table convention used
elsewhere in webui.

Also fixes a crash: renderTopoMainDiagram forced numCols to 1 for layout
purposes when a snapshot has zero CPUs, then unconditionally indexed
hw.CPUs[0], panicking the whole /topo page on any audit without CPU data.

Same-kind/same-column components (e.g. 4 GPUs in one NUMA node) now render
as one stacked card summarizing worst-case status plus a tally line ("3 OK,
1 Warning") instead of one box per component, and card severity coloring
uses real fill/stroke vars instead of HTML badge classes that don't apply
any style to SVG shapes.
This commit is contained in:
Mikhail Chusavitin
2026-07-09 10:52:38 +03:00
parent 10557ec0f6
commit 1d5c02ebaa
2 changed files with 527 additions and 161 deletions
+377 -154
View File
@@ -80,26 +80,6 @@ func isRAIDControllerClass(class string) bool {
// Status / link-speed coloring
// ---------------------------------------------------------------------------
// topoStatusBadgeClass maps a component's Status pointer to a badge class,
// treating a nil/absent status the same as literal "Unknown" (matches how
// the rest of the UI already renders missing status, per chipLetterClass/
// runtimeStatusBadge in pages.go).
func topoStatusBadgeClass(status *string) (label, cls string) {
if status == nil {
return "?", "badge-unknown"
}
switch strings.ToUpper(strings.TrimSpace(*status)) {
case "OK":
return "OK", "badge-ok"
case "WARNING", "WARN", "PARTIAL":
return "WARN", "badge-warn"
case "CRITICAL", "FAIL", "FAILED", "ERROR":
return "CRIT", "badge-err"
default:
return "?", "badge-unknown"
}
}
// pcieGenRank ranks a PCIe generation label ("Gen3", "Gen4", ...) for
// comparison. Mirrors collector.pcieLinkSpeedRank's ordering; duplicated
// locally rather than exported, per the same "no collector import in webui"
@@ -341,27 +321,166 @@ func normalizeTopoBDF(bdf string) string {
return bdf
}
// ---------------------------------------------------------------------------
// Card status aggregation
//
// Every card on this page — whether it represents one component (CPU 1) or a
// group of identical ones (GPU ×4) — is colored as a whole by its worst
// observed status, with a plain-text summary as the card's last line
// (e.g. "4 OK" or "3 OK, 1 Warning"). There is no separate status chip: a
// chip needs its own fill, and the SVG boxes previously colored that chip
// via CSS classes written for HTML (.badge-ok sets `background`/`color`,
// which do nothing on an SVG <rect>/<text> — only `fill` does), so every
// chip rendered with the SVG default fill of solid black. Coloring the card
// itself uses real `fill:var(--ok-bg)` etc. declarations, which sidesteps
// that class entirely.
// ---------------------------------------------------------------------------
// classifyTopoSeverity converts a component's Status pointer to a severity
// rank (0=unknown, 1=OK, 2=Warning, 3=Critical), treating nil/unrecognized
// the same as "Unknown" — matches topoStatusBadgeClass's classification.
func classifyTopoSeverity(status *string) int {
if status == nil {
return 0
}
switch strings.ToUpper(strings.TrimSpace(*status)) {
case "OK":
return 1
case "WARNING", "WARN", "PARTIAL":
return 2
case "CRITICAL", "FAIL", "FAILED", "ERROR":
return 3
default:
return 0
}
}
// topoSeverityColors returns the (fill, stroke, text) CSS var() triple a
// whole card is painted with for a given worst-observed severity.
func topoSeverityColors(sev int) (fill, stroke, text string) {
switch sev {
case 3:
return "var(--crit-bg)", "var(--crit-border)", "var(--crit-fg)"
case 2:
return "var(--warn-bg)", "#c9ba9b", "var(--warn-fg)"
case 1:
return "var(--ok-bg)", "#a3c293", "var(--ok-fg)"
default:
return "var(--surface-2)", "var(--border)", "var(--muted)"
}
}
// topoStatusTally counts how many components in a group fall into each
// severity bucket, so a group card can report "3 OK, 1 Warning" rather than
// collapsing to a single worst-of value and losing the rest.
type topoStatusTally struct {
unknown, ok, warn, crit int
}
func (t *topoStatusTally) add(sev int) {
switch sev {
case 3:
t.crit++
case 2:
t.warn++
case 1:
t.ok++
default:
t.unknown++
}
}
func (t topoStatusTally) total() int { return t.unknown + t.ok + t.warn + t.crit }
func (t topoStatusTally) worst() int {
switch {
case t.crit > 0:
return 3
case t.warn > 0:
return 2
case t.ok > 0:
return 1
default:
return 0
}
}
// line renders the card's last-line status summary.
func (t topoStatusTally) line() string {
if t.total() == 0 {
return "No data"
}
if t.total() == 1 {
switch {
case t.crit > 0:
return "Critical"
case t.warn > 0:
return "Warning"
case t.ok > 0:
return "OK"
default:
return "Unknown"
}
}
var parts []string
if t.crit > 0 {
parts = append(parts, fmt.Sprintf("%d Critical", t.crit))
}
if t.warn > 0 {
parts = append(parts, fmt.Sprintf("%d Warning", t.warn))
}
if t.ok > 0 {
parts = append(parts, fmt.Sprintf("%d OK", t.ok))
}
if t.unknown > 0 {
parts = append(parts, fmt.Sprintf("%d Unknown", t.unknown))
}
return strings.Join(parts, ", ")
}
// topoCardInfo is the shared visual content for one card, rendered either as
// an absolutely-positioned SVG box (main diagram) or an HTML flex item
// (Memory/Power Supplies rows) by the two writers below.
type topoCardInfo struct {
label string // e.g. "CPU 1", "GPU", "Power Supplies"
sublabel string // representative model/description, "" to omit
count int // components represented by this card; >1 draws a stack
statusLine string // last line of card text, e.g. "4 OK, 1 Warning"
fillVar string
strokeVar string
textVar string
detailType string // "" = not clickable
}
// topoStackLayers returns how many faint backing cards to draw behind the
// front card to read as "a stack of N", capped at 2 — enough to signal
// "more than one" without the deck becoming its own visual clutter.
func topoStackLayers(count int) int {
if count <= 1 {
return 0
}
if count-1 > 2 {
return 2
}
return count - 1
}
// ---------------------------------------------------------------------------
// Main topology diagram
// ---------------------------------------------------------------------------
const (
topoColWidth = 220
topoBoxWidth = 190
topoBoxHeight = 56
topoDeviceGap = 14
topoTopMargin = 30
topoEdgeBand = 60
topoBottomRowH = 90
topoColWidth = 220
topoBoxWidth = 190
topoBoxHeight = 70
topoDeviceGap = 14
topoTopMargin = 30
topoStackStep = 4 // px offset per backing layer in the card-stack effect
)
type topoBox struct {
x, y, w, h int
label string
sublabel string
badgeText string
badgeCls string
detailType string // "" = not clickable
topoCardInfo
}
func renderTopoMainDiagram(hw schema.HardwareSnapshot, exportDir string) string {
@@ -421,26 +540,56 @@ func renderTopoMainDiagram(hw schema.HardwareSnapshot, exportDir string) string
// GPU index<->BDF map + pairwise NVLink adjacency, read from the
// persisted techdump captured during the last audit cycle, best-effort:
// if the dump is missing (older audit, no NVIDIA GPUs), GPU-GPU edges are
// simply omitted.
// if the dump is missing (older audit, no NVIDIA GPUs), this is simply
// skipped. Used only to detect the cross-NUMA-bonded-pair anomaly below;
// the pairwise links themselves are drawn in the separate NVLink
// Topology card, since grouping same-kind/same-column devices into one
// stacked card here leaves no single per-GPU anchor point to draw a
// pairwise connector to or from.
bdfToIndex, _ := readNVIDIAIndexByBDF(exportDir)
var pairs []gpuPairLink
if topoMatrix, err := readGPUTopologyMatrix(exportDir); err == nil {
pairs = parseGPUPairAdjacency(topoMatrix)
}
gpuNUMAByIndex := map[int]*int{}
gpuBDFByIndex := map[int]string{}
for _, p := range placed {
if p.kind != "gpu" || p.bdf == "" {
continue
}
if idx, ok := bdfToIndex[p.bdf]; ok {
gpuNUMAByIndex[idx] = p.dev.NUMANode
gpuBDFByIndex[idx] = p.bdf
}
}
// A bonded pair spanning two different NUMA nodes is treated as an
// anomaly (not a neutral fact) per project decision: a bonded pair is
// expected to sit on one NUMA node, so a cross-NUMA bond escalates both
// GPUs' effective severity to at least Warning, regardless of their own
// reported SAT status.
crossNUMAWarnBDF := map[string]bool{}
for _, pair := range pairs {
numaA, okA := gpuNUMAByIndex[pair.GPUA]
numaB, okB := gpuNUMAByIndex[pair.GPUB]
if !okA || !okB || numaA == nil || numaB == nil || *numaA == *numaB {
continue
}
crossNUMAWarnBDF[gpuBDFByIndex[pair.GPUA]] = true
crossNUMAWarnBDF[gpuBDFByIndex[pair.GPUB]] = true
}
kindOrder := []string{"gpu", "nic", "raid"}
kindLabel := map[string]string{"gpu": "GPU", "nic": "NIC", "raid": "RAID"}
var boxes []topoBox
var pcieEdges []struct {
x1, y1, x2, y2 int
color string
}
gpuBoxCenter := map[int][2]int{} // gpu index -> (x, yBottom)
gpuBoxIndex := map[int]int{} // gpu index -> index into boxes
gpuNUMANode := map[int]*int{} // gpu index -> its PCIe device's numa_node
for col := 0; col < totalCols; col++ {
colX := (col+1)*24 + col*topoColWidth
if col < numCols {
if col < len(hw.CPUs) {
cpu := hw.CPUs[col]
model := ""
if cpu.Model != nil {
@@ -450,159 +599,216 @@ func renderTopoMainDiagram(hw schema.HardwareSnapshot, exportDir string) string
if cpu.Socket != nil {
socket = *cpu.Socket
}
label, cls := topoStatusBadgeClass(cpu.Status)
var tally topoStatusTally
tally.add(classifyTopoSeverity(cpu.Status))
fill, stroke, text := topoSeverityColors(tally.worst())
boxes = append(boxes, topoBox{
x: colX, y: topoTopMargin, w: topoBoxWidth, h: topoBoxHeight,
label: fmt.Sprintf("CPU %d", socket), sublabel: model,
badgeText: label, badgeCls: cls, detailType: "cpu",
topoCardInfo: topoCardInfo{
label: fmt.Sprintf("CPU %d", socket), sublabel: model, count: 1,
statusLine: tally.line(),
fillVar: fill, strokeVar: stroke, textVar: text,
detailType: "cpu",
},
})
}
y := topoTopMargin + topoBoxHeight + topoDeviceGap*2
for _, p := range placed {
if p.col != col {
for _, kind := range kindOrder {
var group []placedDevice
for _, p := range placed {
if p.col == col && p.kind == kind {
group = append(group, p)
}
}
if len(group) == 0 {
continue
}
label, cls := topoStatusBadgeClass(p.dev.Status)
model := ""
if p.dev.Model != nil {
model = *p.dev.Model
}
box := topoBox{
x: colX, y: y, w: topoBoxWidth, h: topoBoxHeight,
label: strings.ToUpper(p.kind), sublabel: model,
badgeText: label, badgeCls: cls, detailType: p.kind,
}
boxes = append(boxes, box)
boxIdx := len(boxes) - 1
if col < numCols {
var tally topoStatusTally
model := ""
edgeColor := "var(--ok-fg)"
for i, p := range group {
sev := classifyTopoSeverity(p.dev.Status)
if kind == "gpu" && crossNUMAWarnBDF[p.bdf] && sev < 2 {
sev = 2
}
tally.add(sev)
if i == 0 && p.dev.Model != nil {
model = *p.dev.Model
}
if topoEdgeColorVar(p.dev) == "var(--warn-fg)" {
edgeColor = "var(--warn-fg)"
}
}
fill, stroke, text := topoSeverityColors(tally.worst())
stackLayers := topoStackLayers(len(group))
boxes = append(boxes, topoBox{
x: colX, y: y, w: topoBoxWidth, h: topoBoxHeight,
topoCardInfo: topoCardInfo{
label: kindLabel[kind], sublabel: model, count: len(group),
statusLine: tally.line(),
fillVar: fill, strokeVar: stroke, textVar: text,
detailType: kind,
},
})
if col < len(hw.CPUs) {
pcieEdges = append(pcieEdges, struct {
x1, y1, x2, y2 int
color string
}{
x1: colX + topoBoxWidth/2, y1: topoTopMargin + topoBoxHeight,
x2: colX + topoBoxWidth/2, y2: y,
color: topoEdgeColorVar(p.dev),
color: edgeColor,
})
}
if p.kind == "gpu" && p.bdf != "" {
if idx, ok := bdfToIndex[p.bdf]; ok {
gpuBoxCenter[idx] = [2]int{colX + topoBoxWidth/2, y + topoBoxHeight}
gpuBoxIndex[idx] = boxIdx
gpuNUMANode[idx] = p.dev.NUMANode
}
}
y += topoBoxHeight + topoDeviceGap
y += topoBoxHeight + topoDeviceGap + stackLayers*topoStackStep
}
}
maxDeviceY := topoTopMargin + topoBoxHeight + topoDeviceGap*2
for _, b := range boxes {
if b.y+b.h > maxDeviceY {
maxDeviceY = b.y + b.h
for _, box := range boxes {
bottom := box.y + box.h + topoStackLayers(box.count)*topoStackStep
if bottom > maxDeviceY {
maxDeviceY = bottom
}
}
// GPU-GPU NVLink edges: drawn as an elbow connector through a dedicated
// band below the device row, kept strictly separate from the vertical
// CPU->device PCIe edges above so neither visually obscures the other.
//
// A bonded pair spanning two different NUMA nodes is treated as an
// anomaly (not a neutral fact) per project decision: we expect a bonded
// pair to sit on one NUMA node, so a cross-NUMA bond is flagged Warning
// on the edge AND on both GPU boxes, regardless of their own SAT status.
bandY := maxDeviceY + topoEdgeBand/2
var gpuEdgesSVG strings.Builder
for _, pair := range pairs {
c1, ok1 := gpuBoxCenter[pair.GPUA]
c2, ok2 := gpuBoxCenter[pair.GPUB]
if !ok1 || !ok2 {
continue
}
color := "var(--ok-fg)"
title := fmt.Sprintf("NVLink: GPU%d↔GPU%d (%d links)", pair.GPUA, pair.GPUB, pair.NVLinks)
numaA, numaB := gpuNUMANode[pair.GPUA], gpuNUMANode[pair.GPUB]
if numaA == nil || numaB == nil {
color = "var(--muted)"
} else if *numaA != *numaB {
color = "var(--warn-fg)"
title += " — spans NUMA nodes (unexpected)"
upgradeTopoBoxBadgeToWarn(boxes, gpuBoxIndex[pair.GPUA])
upgradeTopoBoxBadgeToWarn(boxes, gpuBoxIndex[pair.GPUB])
}
fmt.Fprintf(&gpuEdgesSVG,
`<path d="M %d %d L %d %d L %d %d L %d %d" style="fill:none;stroke:%s;stroke-width:2;stroke-dasharray:4,3"><title>%s</title></path>`+"\n",
c1[0], c1[1], c1[0], bandY, c2[0], bandY, c2[0], c2[1], color, html.EscapeString(title))
}
svgHeight := bandY + topoEdgeBand/2 + topoBottomRowH
svgHeight := maxDeviceY + 24
svgWidth := totalCols*topoColWidth + 48
var b strings.Builder
fmt.Fprintf(&b, `<svg width="%d" height="%d" viewBox="0 0 %d %d" style="max-width:100%%">`+"\n", svgWidth, svgHeight, svgWidth, svgHeight)
// Wrapped in its own horizontally-scrolling container (matching the
// overflow-x:auto convention used for wide tables elsewhere in webui)
// rather than max-width:100% — squashing a node/edge diagram to fit a
// narrow viewport makes labels and badges illegible, whereas scrolling
// keeps the diagram readable at its natural size on any screen width.
b.WriteString(`<div style="overflow-x:auto">`)
fmt.Fprintf(&b, `<svg width="%d" height="%d" viewBox="0 0 %d %d">`+"\n", svgWidth, svgHeight, svgWidth, svgHeight)
for _, e := range pcieEdges {
fmt.Fprintf(&b, `<line x1="%d" y1="%d" x2="%d" y2="%d" style="stroke:%s;stroke-width:2"/>`+"\n", e.x1, e.y1, e.x2, e.y2, e.color)
}
b.WriteString(gpuEdgesSVG.String())
for _, box := range boxes {
writeTopoBoxSVG(&b, box)
}
b.WriteString(`</svg></div>`)
// PSU / BMC row: standalone boxes, no connecting lines.
psuY := svgHeight - topoBottomRowH + 20
psuX := 24
for _, psu := range hw.PowerSupplies {
label, cls := topoStatusBadgeClass(psu.Status)
slot := ""
if psu.Slot != nil {
slot = *psu.Slot
// Memory, Firmware (BMC/BIOS/...) and PSUs have no PCIe/CPU affinity to
// anchor them to a column, and there can be an arbitrary number of any
// of them — so unlike the diagram above, they're plain flex-wrap HTML
// below the SVG rather than absolutely-positioned SVG boxes. A
// fixed-size SVG canvas has no way to wrap overflow onto a new row,
// which is exactly what caused these to pile up and overlap once a
// board had more PSUs/firmware records than fit in one fixed-width row.
if len(hw.Memory) > 0 {
var tally topoStatusTally
for _, m := range hw.Memory {
tally.add(classifyTopoSeverity(m.Status))
}
watt := ""
if psu.WattageW != nil {
watt = fmt.Sprintf("%dW", *psu.WattageW)
fill, stroke, text := topoSeverityColors(tally.worst())
sizeGB := 0
for _, m := range hw.Memory {
if m.SizeMB != nil {
sizeGB += *m.SizeMB / 1024
}
}
writeTopoBoxSVG(&b, topoBox{
x: psuX, y: psuY, w: 150, h: topoBoxHeight,
label: "PSU " + slot, sublabel: watt,
badgeText: label, badgeCls: cls, detailType: "psu",
sublabel := ""
if sizeGB > 0 {
sublabel = fmt.Sprintf("%d GB total", sizeGB)
}
b.WriteString(renderTopoFlexRow("Memory", []topoCardInfo{{
label: "Memory", sublabel: sublabel, count: len(hw.Memory),
statusLine: tally.line(),
fillVar: fill, strokeVar: stroke, textVar: text,
detailType: "memory",
}}))
}
var firmwareItems []topoCardInfo
for _, rec := range hw.Firmware {
// Firmware records carry no per-item status in the schema (they are
// identity, not health, facts), so each stays a neutral, uncolored
// card rather than forcing a fake "Unknown" status line.
fillVar, strokeVar, textVar := topoSeverityColors(0)
firmwareItems = append(firmwareItems, topoCardInfo{
label: rec.DeviceName, sublabel: "fw " + rec.Version, count: 1,
fillVar: fillVar, strokeVar: strokeVar, textVar: textVar,
})
psuX += 150 + topoDeviceGap
}
if bmcVersion, ok := findBMCFirmware(hw.Firmware); ok {
writeTopoBoxSVG(&b, topoBox{
x: svgWidth - 200 - 24, y: psuY, w: 200, h: topoBoxHeight,
label: "BMC", sublabel: "fw " + bmcVersion,
badgeText: "?", badgeCls: "badge-unknown",
})
b.WriteString(renderTopoFlexRow("Firmware", firmwareItems))
if len(hw.PowerSupplies) > 0 {
var tally topoStatusTally
watt := 0
for _, psu := range hw.PowerSupplies {
tally.add(classifyTopoSeverity(psu.Status))
if psu.WattageW != nil {
watt = *psu.WattageW
}
}
fill, stroke, text := topoSeverityColors(tally.worst())
sublabel := ""
if watt > 0 {
sublabel = fmt.Sprintf("%dW each", watt)
}
b.WriteString(renderTopoFlexRow("Power Supplies", []topoCardInfo{{
label: "Power Supplies", sublabel: sublabel, count: len(hw.PowerSupplies),
statusLine: tally.line(),
fillVar: fill, strokeVar: stroke, textVar: text,
detailType: "psu",
}}))
}
b.WriteString(`</svg>`)
return topoCard("Topology", b.String())
}
// upgradeTopoBoxBadgeToWarn upgrades a box's badge to Warning unless it is
// already at Critical severity (never downgrades a worse status).
func upgradeTopoBoxBadgeToWarn(boxes []topoBox, boxIdx int) {
if boxIdx < 0 || boxIdx >= len(boxes) {
return
// renderTopoFlexRow renders a labeled, wrapping row of component cards.
// Returns "" if items is empty (e.g. no PSU data in this audit).
func renderTopoFlexRow(title string, items []topoCardInfo) string {
if len(items) == 0 {
return ""
}
if boxes[boxIdx].badgeCls == "badge-err" {
return
}
boxes[boxIdx].badgeText = "WARN"
boxes[boxIdx].badgeCls = "badge-warn"
}
func findBMCFirmware(records []schema.HardwareFirmwareRecord) (string, bool) {
for _, rec := range records {
if strings.EqualFold(strings.TrimSpace(rec.DeviceName), "BMC") {
return rec.Version, true
var b strings.Builder
fmt.Fprintf(&b, `<div style="font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin:16px 0 6px">%s</div>`,
html.EscapeString(title))
b.WriteString(`<div style="display:flex;flex-wrap:wrap;gap:10px">`)
for _, item := range items {
onclick := ""
cursor := "default"
if item.detailType != "" {
onclick = fmt.Sprintf(` onclick="openComponentDetail('%s')"`, item.detailType)
cursor = "pointer"
}
stackLayers := topoStackLayers(item.count)
// Extra right/bottom padding on the wrapper reserves room for the
// backing layers of the stack effect so they aren't clipped by the
// flex container.
fmt.Fprintf(&b, `<div style="position:relative;padding-right:%dpx;padding-bottom:%dpx">`,
stackLayers*topoStackStep, stackLayers*topoStackStep)
for i := stackLayers; i >= 1; i-- {
off := i * topoStackStep
fmt.Fprintf(&b, `<div style="position:absolute;top:%dpx;left:%dpx;right:0;bottom:0;border-radius:6px;background:%s;border:1px solid %s;opacity:.55"></div>`,
off, off, item.fillVar, item.strokeVar)
}
fmt.Fprintf(&b, `<div%s style="position:relative;cursor:%s;min-width:160px;padding:10px 12px;border-radius:6px;background:%s;border:1px solid %s;color:%s">`,
onclick, cursor, item.fillVar, item.strokeVar, item.textVar)
label := item.label
if item.count > 1 {
label = fmt.Sprintf("%s ×%d", item.label, item.count)
}
fmt.Fprintf(&b, `<div style="font-size:13px;font-weight:700">%s</div>`, html.EscapeString(label))
if item.sublabel != "" {
fmt.Fprintf(&b, `<div style="font-size:11px;opacity:.85">%s</div>`, html.EscapeString(item.sublabel))
}
if item.statusLine != "" {
fmt.Fprintf(&b, `<div style="font-size:11px;font-weight:600;margin-top:4px">%s</div>`, html.EscapeString(item.statusLine))
}
b.WriteString(`</div></div>`)
}
return "", false
b.WriteString(`</div>`)
return b.String()
}
func writeTopoBoxSVG(b *strings.Builder, box topoBox) {
@@ -613,18 +819,35 @@ func writeTopoBoxSVG(b *strings.Builder, box topoBox) {
cursor = "pointer"
}
fmt.Fprintf(b, `<g%s style="cursor:%s">`, onclick, cursor)
fmt.Fprintf(b, `<rect x="%d" y="%d" width="%d" height="%d" rx="6" ry="6" style="fill:var(--surface);stroke:var(--border)"/>`+"\n",
box.x, box.y, box.w, box.h)
fmt.Fprintf(b, `<text x="%d" y="%d" style="fill:var(--ink,#000);font-size:13px;font-weight:700">%s</text>`+"\n",
box.x+10, box.y+20, html.EscapeString(box.label))
// Stack-of-cards effect: faint offset rects behind the front card when
// this box represents more than one physical component (e.g. 4 GPUs in
// one NUMA column), so a group reads as "a deck of N" rather than a
// single item. Peeks toward the bottom-right, into space already
// reserved between this box and the next one in the column.
for i := topoStackLayers(box.count); i >= 1; i-- {
off := i * topoStackStep
fmt.Fprintf(b, `<rect x="%d" y="%d" width="%d" height="%d" rx="6" ry="6" style="fill:%s;stroke:%s;opacity:.55"/>`+"\n",
box.x+off, box.y+off, box.w, box.h, box.fillVar, box.strokeVar)
}
fmt.Fprintf(b, `<rect x="%d" y="%d" width="%d" height="%d" rx="6" ry="6" style="fill:%s;stroke:%s"/>`+"\n",
box.x, box.y, box.w, box.h, box.fillVar, box.strokeVar)
label := box.label
if box.count > 1 {
label = fmt.Sprintf("%s ×%d", box.label, box.count)
}
fmt.Fprintf(b, `<text x="%d" y="%d" style="fill:%s;font-size:13px;font-weight:700">%s</text>`+"\n",
box.x+10, box.y+20, box.textVar, html.EscapeString(label))
if box.sublabel != "" {
fmt.Fprintf(b, `<text x="%d" y="%d" style="fill:var(--muted);font-size:11px">%s</text>`+"\n",
box.x+10, box.y+36, html.EscapeString(truncateTopoLabel(box.sublabel, 26)))
fmt.Fprintf(b, `<text x="%d" y="%d" style="fill:%s;font-size:11px;opacity:.85">%s</text>`+"\n",
box.x+10, box.y+36, box.textVar, html.EscapeString(truncateTopoLabel(box.sublabel, 26)))
}
if box.statusLine != "" {
fmt.Fprintf(b, `<text x="%d" y="%d" style="fill:%s;font-size:10px;font-weight:600">%s</text>`+"\n",
box.x+10, box.y+box.h-10, box.textVar, html.EscapeString(box.statusLine))
}
fmt.Fprintf(b, `<rect x="%d" y="%d" width="46" height="18" rx="3" ry="3" class="%s"/>`+"\n",
box.x+box.w-54, box.y+box.h-26, box.badgeCls)
fmt.Fprintf(b, `<text x="%d" y="%d" style="font-size:10px;font-weight:700" class="%s">%s</text>`+"\n",
box.x+box.w-49, box.y+box.h-13, box.badgeCls, html.EscapeString(box.badgeText))
b.WriteString(`</g>` + "\n")
}