chore: publish pxmon v0.2.0

2026-06-16 21:52:10 +04:00
commit 6b703db02b
69 changed files with 25886 additions and 0 deletions
@@ -0,0 +1,82 @@
+package cluster
+
+import (
+	"errors"
+	"fmt"
+	"math"
+	"strings"
+
+	"pxmon/internal/history"
+)
+
+type InterfaceP95Snapshot struct {
+	ClusterName string                    `json:"cluster"`
+	ClusterID   string                    `json:"cluster_id"`
+	Interface   string                    `json:"interface"`
+	Range       history.RangeShortcut     `json:"range"`
+	Samples     int                       `json:"samples"`
+	P95Mbps     float64                   `json:"p95_mbps"`
+	AvgMbps     float64                   `json:"avg_mbps"`
+	MaxMbps     float64                   `json:"max_mbps"`
+	Series      []history.NodeSamplePoint `json:"series,omitempty"`
+}
+
+func (s *Service) CollectInterfaceP95(selector, iface string, rng history.RangeShortcut) (InterfaceP95Snapshot, error) {
+	iface = strings.TrimSpace(iface)
+	if iface == "" {
+		return InterfaceP95Snapshot{}, errors.New("interface is required")
+	}
+	c, err := s.Get(selector)
+	if err != nil {
+		return InterfaceP95Snapshot{}, err
+	}
+	store := s.NetworkStore()
+	if store == nil {
+		return InterfaceP95Snapshot{}, errors.New("history store not configured")
+	}
+	snaps, err := store.Load(c.ID, rng.Since(s.now()))
+	if err != nil {
+		return InterfaceP95Snapshot{}, err
+	}
+	series := history.AggregateNodeSeries(snaps, iface)
+	out := InterfaceP95Snapshot{
+		ClusterName: c.Name,
+		ClusterID:   c.ID,
+		Interface:   iface,
+		Range:       rng,
+		Samples:     len(series),
+		P95Mbps:     history.PercentileMbps(series, 95),
+		Series:      series,
+	}
+	if len(series) == 0 {
+		return out, nil
+	}
+	var sum, maxV float64
+	for _, p := range series {
+		sum += p.TotalMbps
+		if p.TotalMbps > maxV {
+			maxV = p.TotalMbps
+		}
+	}
+	out.AvgMbps = sum / float64(len(series))
+	out.MaxMbps = maxV
+	return out, nil
+}
+
+func (s *Service) RenderInterfaceP95GraphPNG(snap InterfaceP95Snapshot) ([]byte, error) {
+	if len(snap.Series) == 0 {
+		return history.RenderNodeNetworkPNG([]history.NodeSamplePoint{}, history.ChartOptions{
+			Title:    fmt.Sprintf("%s: %s", snap.ClusterName, snap.Interface),
+			Subtitle: "No samples",
+		})
+	}
+	subtitle := fmt.Sprintf("P95 %.1f Mbps | max %.1f Mbps | avg %.1f Mbps", snap.P95Mbps, snap.MaxMbps, snap.AvgMbps)
+	if math.IsNaN(snap.P95Mbps) {
+		subtitle = "No samples"
+	}
+	return history.RenderNodeNetworkPNG(snap.Series, history.ChartOptions{
+		Title:      fmt.Sprintf("%s: %s", snap.ClusterName, snap.Interface),
+		Subtitle:   subtitle,
+		Percentile: 95,
+	})
+}