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cloud-ip-validator/internal/dashboard/handlers_analytics.go
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package dashboard
import (
"encoding/json"
"fmt"
"html/template"
"net/http"
"strconv"
"strings"
"time"
)
// runOption is one entry of the run selector.
type runOption struct {
ID int64
Label string
Disabled bool
Selected bool
}
type analyticsPageData struct {
PageData
Runs []runOption
RunID int64
PrevURL string // older run, "" when there is none
NextURL string // newer run
// DataJSON is the page's data for analytics.js (run meta, labels, report),
// HTML-safe JSON.
DataJSON template.JS
HasRun bool
}
// analyticsMeta is what analytics.js needs besides the report.
type analyticsMeta struct {
RunID int64 `json:"run_id"`
Kind string `json:"kind"`
Start string `json:"start"`
End string `json:"end"`
Duration string `json:"duration"`
Rechecked int `json:"rechecked"`
ListURL string `json:"list_url"`
CSVURL string `json:"csv_url"`
Registry string `json:"registry_url"`
}
// handleAnalyticsPage renders the analytics of one finished run: ?run=ID, by
// default the newest finished run. The run selector lists every run, the open
// one disabled; nothing of any other run is on the page.
func (s *Server) handleAnalyticsPage(w http.ResponseWriter, r *http.Request) {
data := analyticsPageData{}
data.ActiveNav = "analytics"
runs, err := s.CA.ListAnalyticsRuns(r.Context())
if err != nil {
data.Banner = bannerFor(err)
s.renderPage(w, r, "analytics_page", data)
return
}
want, _ := strconv.ParseInt(r.URL.Query().Get("run"), 10, 64)
var chosen *analyticsRun
for i := range runs { // newest first
if runs[i].State != "finalized" || runs[i].Addresses == 0 {
continue
}
if want == 0 || runs[i].ID == want {
chosen = &runs[i]
break
}
}
var finished []analyticsRun // newest first
for _, x := range runs {
if x.State == "finalized" && x.Addresses > 0 {
finished = append(finished, x)
}
}
for _, x := range runs {
if x.State == "finalized" && x.Addresses == 0 {
continue // nothing to show for it, hide
}
opt := runOption{ID: x.ID, Label: runLabel(x), Disabled: x.State != "finalized"}
if chosen != nil && x.ID == chosen.ID {
opt.Selected = true
}
data.Runs = append(data.Runs, opt)
}
if chosen == nil {
if want != 0 {
data.Banner = bannerData{Message: fmt.Sprintf("Запуск %d не найден или ещё не завершён.", want), Client: true}
}
s.renderPage(w, r, "analytics_page", data)
return
}
data.RunID = chosen.ID
for i, x := range finished {
if x.ID == chosen.ID {
if i+1 < len(finished) {
data.PrevURL = "/analytics?run=" + strconv.FormatInt(finished[i+1].ID, 10)
}
if i > 0 {
data.NextURL = "/analytics?run=" + strconv.FormatInt(finished[i-1].ID, 10)
}
}
}
report, err := s.CA.GetAnalyticsReport(r.Context(), chosen.ID)
if err != nil {
data.Banner = bannerFor(err)
s.renderPage(w, r, "analytics_page", data)
return
}
var info struct {
Run struct {
Rechecked int `json:"rechecked"`
} `json:"run"`
}
_ = json.Unmarshal(report, &info)
id := strconv.FormatInt(chosen.ID, 10)
meta := analyticsMeta{
RunID: chosen.ID, Kind: kindLabel(chosen.Kind),
Start: fmtShort(chosen.StartedAt), Duration: "—", Rechecked: info.Run.Rechecked,
ListURL: "/analytics/lists/",
CSVURL: "/analytics/csv/",
Registry: "/registry?run=" + id,
}
if chosen.FinalizedAt != nil {
meta.End = fmtShort(*chosen.FinalizedAt)
meta.Duration = fmtRunDuration(chosen.FinalizedAt.Sub(chosen.StartedAt))
}
payload, err := json.Marshal(struct {
Meta analyticsMeta `json:"meta"`
Report json.RawMessage `json:"report"`
}{meta, report})
if err != nil {
data.Banner = bannerFor(err)
s.renderPage(w, r, "analytics_page", data)
return
}
data.HasRun = true
data.DataJSON = template.JS(payload)
s.renderPage(w, r, "analytics_page", data)
}
func parseRunParam(r *http.Request) (int64, bool) {
id, err := strconv.ParseInt(r.URL.Query().Get("run"), 10, 64)
return id, err == nil && id > 0
}
// handleAnalyticsList proxies one address table of a run as JSON.
func (s *Server) handleAnalyticsList(w http.ResponseWriter, r *http.Request) {
id, ok := parseRunParam(r)
if !ok {
http.Error(w, "run is required", http.StatusBadRequest)
return
}
out, err := s.CA.GetAnalyticsList(r.Context(), id, r.PathValue("kind"), r.URL.Query().Get("class"))
if err != nil {
writeProxyError(w, err)
return
}
w.Header().Set("Content-Type", "application/json")
w.Header().Set("Cache-Control", "no-store")
_, _ = w.Write(out)
}
// handleAnalyticsCSV proxies the CSV file of one address table as a download.
func (s *Server) handleAnalyticsCSV(w http.ResponseWriter, r *http.Request) {
id, ok := parseRunParam(r)
if !ok {
http.Error(w, "run is required", http.StatusBadRequest)
return
}
body, disposition, err := s.CA.GetAnalyticsListCSV(r.Context(), id, r.PathValue("kind"), r.URL.Query().Get("class"))
if err != nil {
writeProxyError(w, err)
return
}
w.Header().Set("Content-Type", "text/csv; charset=utf-8")
if disposition != "" {
w.Header().Set("Content-Disposition", disposition)
}
w.Header().Set("Cache-Control", "no-store")
_, _ = w.Write(body)
}
func writeProxyError(w http.ResponseWriter, err error) {
status := http.StatusBadGateway
if ae, ok := err.(*apiErr); ok && ae.Status >= 400 && ae.Status < 500 {
status = ae.Status
}
http.Error(w, err.Error(), status)
}
func kindLabel(kind string) string {
if kind == "auto" {
return "авто"
}
return "ручной"
}
// groupThousands writes n with a space between thousands: 6440 -> "6 440".
func groupThousands(n int) string {
s := strconv.Itoa(n)
if len(s) <= 3 {
return s
}
var b strings.Builder
for i, c := range s {
if i > 0 && (len(s)-i)%3 == 0 {
b.WriteString(" ")
}
b.WriteRune(c)
}
return b.String()
}
// fmtShort is a run timestamp as the page shows it: 02.10.2026 13:47.
func fmtShort(t time.Time) string { return t.Local().Format("02.01.2006 15:04") }
// fmtDuration is "8 ч 42 мин", "42 мин", "под минуту".
func fmtRunDuration(d time.Duration) string {
m := int(d.Round(time.Minute) / time.Minute)
switch {
case m <= 0:
return "меньше минуты"
case m < 60:
return fmt.Sprintf("%d мин", m)
}
return fmt.Sprintf("%d ч %d мин", m/60, m%60)
}
// runLabel is the text of a run in the selector, e.g.
// "02.10 13:47 → 22:29 · ручной · 6 440 адр. · 30% pass"; an open run reads
// "03.10 15:30 → идёт · ручной · 120 из 800 · недоступен".
func runLabel(x analyticsRun) string {
start := x.StartedAt.Local().Format("02.01 15:04")
if x.State != "finalized" {
return fmt.Sprintf("%s → идёт · %s · %s из %s · недоступен", start, kindLabel(x.Kind),
groupThousands(x.Total-x.Pending), groupThousands(x.Total))
}
end := "—"
if x.FinalizedAt != nil {
e := x.FinalizedAt.Local()
if e.Format("02.01") == x.StartedAt.Local().Format("02.01") {
end = e.Format("15:04")
} else {
end = e.Format("02.01 15:04")
}
}
pass := 0
if x.Addresses > 0 {
pass = int(float64(x.Pass)/float64(x.Addresses)*100 + 0.5)
}
return fmt.Sprintf("%s → %s · %s · %s адр. · %d%% pass", start, end, kindLabel(x.Kind), groupThousands(x.Addresses), pass)
}