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terdut-tui/internal/tui/view.go
T
Niklas Ye 6fdb4bbbf8
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Move to Gitea: git.ryuvia.com/niklas/terdut-tui
The module path, the CI pipeline and the self-updater all named GitHub. They now
name the Gitea instance everything else already runs on.

The workflows are rewritten rather than translated, for the reason recorded in
ci.yaml: Gitea's runner image is ubuntu:22.04, whose nodejs is Node 12, so no JS
action runs there -- actions/checkout@v4 dies with a SyntaxError before doing
anything. Every step is shell and checkout is a plain clone, which this public
repo needs no credential for. upload-artifact/download-artifact are JS actions
too, and there is no artifact store here, so the job that builds the binaries is
the job that publishes them.

internal/updater keeps its release and asset types unchanged: Gitea's release
payload carries the same tag_name, and its attachments the same name and
browser_download_url, so only the URL, the Accept header and one error string
move. The asset naming in release.yaml is load-bearing for that matching.

This does strand already-installed binaries, which still poll api.github.com.
The GitHub repository is left in place and untouched, so they report themselves
up to date rather than erroring; its last release is the bridge, and crossing it
is a one-time manual download.
2026-08-19 20:41:05 +02:00

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package tui
import (
"fmt"
"sort"
"strings"
"time"
"github.com/charmbracelet/lipgloss"
"git.ryuvia.com/niklas/terdut-tui/internal/api"
)
// Order must match the section constants — renderTabs indexes this by ordinal.
var sectionNames = []string{"Incidents", "Alerts", "Stats", "Archived", "Schedule", "Users"}
func (m Model) View() string {
if m.width == 0 {
return ""
}
return lipgloss.JoinVertical(lipgloss.Left,
m.renderHeader(),
m.renderTabs(),
m.renderBody(),
m.renderFooter(),
)
}
func (m Model) renderHeader() string {
title := styleHeader.Render("terdut-tui")
right := styleMuted.Render(m.serverURL)
return spread(title, right, m.width)
}
func (m Model) renderTabs() string {
var tabs []string
for i, name := range sectionNames {
if section(i) == m.activeSection {
tabs = append(tabs, styleTabActive.Render(name))
} else {
tabs = append(tabs, styleTabInactive.Render(name))
}
}
sep := styleMuted.Render(strings.Repeat("─", m.width))
return strings.Join(tabs, "") + "\n" + sep
}
func (m Model) renderBody() string {
if m.err != nil {
return "\n" + styleError.Render(fmt.Sprintf(" Error: %v", m.err)) +
"\n" + styleMuted.Render(" Press r to retry.")
}
if !m.connected {
return "\n" + styleMuted.Render(" Connecting…")
}
switch m.mode {
case modeIncidentDetail, modeAlertDetail:
return m.renderDetail()
case modeNote:
return m.renderPrompt(styleHeader.Render("Note: ") + m.noteInput.View())
case modeSnooze:
return m.renderPrompt(styleHeader.Render("Snooze for: ") + m.snoozeInput.View())
case modeConfirm:
switch m.confirmTarget {
case confirmDeleteNote, confirmResolveIncident:
return m.renderDetail()
case confirmDeleteUser:
return m.renderUsers()
default:
return m.renderSchedule()
}
case modeUserPicker:
return m.renderUserPicker()
case modeUserCreate:
return m.renderUserCreate()
case modeUserNotifyEdit:
return m.renderUserNotifyEdit()
case modeAPIKeyMenu:
return m.renderAPIKeyMenu()
case modeAPIKeyCreate:
return m.renderAPIKeyCreate()
case modeAPIKeyReveal:
return m.renderAPIKeyReveal()
case modeAPIKeyRevokeByID:
return m.renderAPIKeyRevokeByID()
default:
return m.renderDashboard()
}
}
func (m Model) renderFooter() string {
withStatus := func(actions string) string {
rendered := styleFooter.Render(actions)
if m.statusMsg != "" {
return styleStatus.Render(" "+m.statusMsg) + "\n" + rendered
}
return "\n" + rendered
}
switch m.mode {
case modeIncidentDetail:
if !m.selectedIncident.IsOpen() {
return withStatus(" x·archive c·note [/]·select d·del esc·back")
}
return withStatus(" a·ack A·unack R·resolve s·assign z·snooze Z·unsnooze c·note [/]·select d·del esc·back")
case modeAlertDetail:
return withStatus(" i·open incident esc·back")
case modeNote:
return "\n" + styleFooter.Render(" enter·submit esc·cancel")
case modeSnooze:
return "\n" + styleFooter.Render(" enter·snooze esc·cancel (e.g. 30m, 2h, 24h)")
case modeConfirm:
return "\n" + styleError.Render(" "+m.confirmPrompt())
case modeUserPicker:
if m.pickerTarget == pickerIncidentAssignee {
return withStatus(" j/k·navigate enter·assign incident esc·cancel")
}
scope := "day"
if m.pickerAssignWeek {
scope = "week"
}
return withStatus(fmt.Sprintf(" j/k·navigate enter·assign %s esc·cancel", scope))
case modeUserCreate:
return withStatus(" tab·next field enter·create esc·cancel")
case modeUserNotifyEdit:
return withStatus(" enter·save esc·cancel (empty clears the topic)")
case modeAPIKeyMenu:
return withStatus(" n·new key r·revoke by ID esc·back")
case modeAPIKeyCreate:
return withStatus(" enter·create esc·back")
case modeAPIKeyReveal:
return withStatus(" c·copy to clipboard esc·done")
case modeAPIKeyRevokeByID:
return withStatus(" enter·revoke esc·back")
default:
switch m.activeSection {
case sectionIncidents:
return withStatus(" enter·detail x·archive f·filter r·refresh tab·section q·quit")
case sectionAlerts:
return withStatus(" enter·detail f·filter r·refresh tab·section q·quit")
case sectionStats:
return withStatus(" ↑/↓·scroll r·refresh tab·section q·quit")
case sectionArchived:
return withStatus(" enter·detail x·unarchive r·refresh tab·section q·quit")
case sectionSchedule:
return withStatus(" +·assign day W·assign week d·del ←/→·shift week tab·section r·refresh q·quit")
case sectionUsers:
return withStatus(" n·new user t·topic d·delete k·API keys r·refresh tab·section q·quit")
}
return "\n" + styleFooter.Render(m.help.ShortHelpView(m.keys.ShortHelp()))
}
}
func (m Model) confirmPrompt() string {
switch m.confirmTarget {
case confirmDeleteNote:
return "Delete this note? [y/N]"
case confirmResolveIncident:
// Manual resolution is terminal on the server, so say so before asking.
return "Resolve incident? This is final — a new occurrence opens a new incident. [y/N]"
case confirmDeleteScheduleEntry:
if m.pendingDeleteEntry != nil {
return fmt.Sprintf("Delete on-call for %s (%s)? [y/N]",
m.pendingDeleteEntry.Date, m.pendingDeleteEntry.Username)
}
return "Delete schedule entry? [y/N]"
case confirmDeleteUser:
return fmt.Sprintf("Delete user %s (cascades all API keys)? [y/N]", m.selectedUser.Username)
case confirmReassignSchedule:
if p := m.pendingAssign; p != nil {
return fmt.Sprintf("%s assigned to %s. Reassign to %s? [y/N]",
dayCount(len(p.taken), len(p.dates)), joinNames(p.holders), p.username)
}
return "Reassign these days? [y/N]"
}
return "Are you sure? [y/N]"
}
// dayCount phrases how much of an assignment is being taken from somebody. A
// single day says so plainly; a partial week says which part, because "3 of 7"
// is the difference between taking a shift and taking somebody's whole week.
func dayCount(taken, total int) string {
switch {
case total == 1:
return "This day is"
case taken == total:
return fmt.Sprintf("All %d days are", total)
default:
return fmt.Sprintf("%d of %d days are", taken, total)
}
}
// joinNames renders a list of people as prose.
func joinNames(names []string) string {
switch len(names) {
case 0:
return "somebody else"
case 1:
return names[0]
case 2:
return names[0] + " and " + names[1]
default:
return strings.Join(names[:len(names)-1], ", ") + " and " + names[len(names)-1]
}
}
// ── Dashboard ──────────────────────────────────────────────────────────────
func (m Model) renderDashboard() string {
switch m.activeSection {
case sectionIncidents:
return m.renderIncidents()
case sectionAlerts:
return m.renderAlerts()
case sectionStats:
return m.renderStats()
case sectionArchived:
return m.renderArchived()
case sectionSchedule:
return m.renderSchedule()
case sectionUsers:
return m.renderUsers()
}
return ""
}
func (m Model) renderIncidents() string {
bar := m.renderIncidentStatsBar()
var content string
switch {
case m.loading && len(m.incidents) == 0:
content = styleMuted.Render(" Loading incidents…")
case len(m.incidents) == 0:
content = styleMuted.Render(
fmt.Sprintf(" No %s incidents.", filterLabel(m.incidentFilter)))
default:
content = m.incidentTable.View()
}
return lipgloss.JoinVertical(lipgloss.Left, bar, content)
}
func (m Model) renderAlerts() string {
bar := m.renderAlertStatsBar()
var content string
switch {
case m.loading && len(m.alerts) == 0:
content = styleMuted.Render(" Loading alerts…")
case len(m.alerts) == 0:
content = styleMuted.Render(fmt.Sprintf(" No %s alerts.", filterLabel(m.alertFilter)))
default:
content = m.alertTable.View()
}
return lipgloss.JoinVertical(lipgloss.Left, bar, content)
}
func (m Model) renderArchived() string {
if m.archivedLoading {
return "\n" + styleMuted.Render(" Loading archived incidents…")
}
if len(m.archivedIncidents) == 0 {
return "\n" + styleMuted.Render(" No archived incidents.")
}
return "\n" + m.archivedTable.View()
}
func (m Model) renderIncidentStatsBar() string {
var triggered, acked, resolved int
mtta, mttr := "—", "—"
if m.incidentStats != nil {
triggered = m.incidentStats.Triggered
acked = m.incidentStats.Acknowledged
resolved = m.incidentStats.Resolved
mtta = humanSeconds(m.incidentStats.MTTASeconds)
mttr = humanSeconds(m.incidentStats.MTTRSeconds)
}
left := fmt.Sprintf(" %s %s %s %s",
styleTriggered.Render(fmt.Sprintf("Triggered: %d", triggered)),
styleAcknowledged.Render(fmt.Sprintf("Acked: %d", acked)),
styleResolved.Render(fmt.Sprintf("Resolved: %d", resolved)),
styleMuted.Render(fmt.Sprintf("MTTA %s · MTTR %s", mtta, mttr)),
)
right := styleMuted.Render(fmt.Sprintf("filter: %s [f] ", filterLabel(m.incidentFilter)))
return spread(left, right, m.width)
}
func (m Model) renderAlertStatsBar() string {
total, firing, resolved := 0, 0, 0
if m.alertStats != nil {
total = m.alertStats.Total
firing = m.alertStats.Firing
resolved = m.alertStats.Resolved
}
left := fmt.Sprintf(" Total: %d %s %s",
total,
styleFiring.Render(fmt.Sprintf("Firing: %d", firing)),
styleResolved.Render(fmt.Sprintf("Resolved: %d", resolved)),
)
right := styleMuted.Render(fmt.Sprintf("filter: %s [f] ", filterLabel(m.alertFilter)))
return spread(left, right, m.width)
}
// spread pushes left and right to the edges of a width.
func spread(left, right string, width int) string {
gap := width - lipgloss.Width(left) - lipgloss.Width(right)
if gap < 0 {
gap = 0
}
return left + strings.Repeat(" ", gap) + right
}
// ── Schedule ───────────────────────────────────────────────────────────────
func (m Model) renderSchedule() string {
if m.scheduleLoading {
return "\n" + styleMuted.Render(" Loading schedule…")
}
var onCallLine string
if m.currentOnCall != nil {
onCallLine = fmt.Sprintf(" On-call today: %s",
styleAlertName.Render(m.currentOnCall.Username))
} else {
onCallLine = styleMuted.Render(" On-call today: nobody scheduled")
}
from := m.scheduleWindow
to := m.scheduleWindow.AddDate(0, 0, 6)
windowLabel := styleMuted.Render(fmt.Sprintf(" %s — %s",
from.Format("Jan 02"), to.Format("Jan 02, 2006")))
header := "\n" + spread(onCallLine, windowLabel, m.width) + "\n"
return header + m.scheduleTable.View()
}
func (m Model) renderUserPicker() string {
if m.usersLoading {
return "\n" + styleMuted.Render(" Loading users…")
}
if m.pickerTarget == pickerIncidentAssignee {
header := fmt.Sprintf("\n Assign %s to:\n\n",
styleBold.Render(m.selectedIncident.Title))
return header + m.userPickerTable.View()
}
var scope string
cursor := m.scheduleTable.Cursor()
if cursor >= 0 && cursor < len(m.scheduleDays) {
d := m.scheduleDays[cursor].date
if m.pickerAssignWeek {
weekday := int(d.Weekday())
if weekday == 0 {
weekday = 7
}
monday := d.AddDate(0, 0, -(weekday - 1))
sunday := monday.AddDate(0, 0, 6)
_, week := d.ISOWeek()
scope = fmt.Sprintf("week W%02d (%s–%s)",
week, monday.Format("Jan 02"), sunday.Format("Jan 02"))
} else if d.Format("2006-01-02") == time.Now().UTC().Format("2006-01-02") {
scope = "Today (" + d.Format("Mon") + ")"
} else {
scope = d.Format("Jan 02 (Mon)")
}
}
header := fmt.Sprintf("\n Assign on-call for %s — select a user:\n\n", styleBold.Render(scope))
return header + m.userPickerTable.View()
}
// ── Detail ─────────────────────────────────────────────────────────────────
func (m Model) renderDetail() string {
if m.detailLoading {
return "\n" + styleMuted.Render(" Loading…")
}
return m.detailViewport.View()
}
// renderPrompt puts an input line under the detail pane.
func (m Model) renderPrompt(prompt string) string {
sep := styleMuted.Render(strings.Repeat("─", m.width))
return m.detailViewport.View() + "\n" + sep + "\n" + prompt
}
// ── Stats ──────────────────────────────────────────────────────────────────
func (m Model) renderStats() string {
// Only announce loading before the first result: a background refresh must not
// blank the page out from under whoever is reading it.
if m.statsLoading && !m.statsLoaded {
return "\n" + styleMuted.Render(" Loading statistics…")
}
return m.statsViewport.View()
}
// line renders s in a style and terminates it.
//
// The newline has to stay outside Render: lipgloss pads every line of a styled
// block out to its widest line, so a trailing newline inside the block produces
// a second line made entirely of padding, and whatever is written next starts
// after that padding instead of at the left margin.
func line(style lipgloss.Style, s string) string {
return style.Render(s) + "\n"
}
// ── Content builders ───────────────────────────────────────────────────────
func buildIncidentDetailContent(inc api.Incident, timeline []api.IncidentEvent, cursor, width int) string {
now := time.Now()
var b strings.Builder
contentW := width - 4
// Title + status header
title := styleAlertName.Render(inc.Title)
status := incidentStatusStyle(inc.Status).Render(incidentStatusLabel(inc))
if inc.Severity != "" {
status += " " + severityStyle(inc.Severity).Render(strings.ToUpper(inc.Severity))
}
gap := contentW - lipgloss.Width(title) - lipgloss.Width(status)
if gap < 1 {
gap = 1
}
b.WriteString("\n " + title + strings.Repeat(" ", gap) + status + "\n\n")
// Timing and ownership
b.WriteString(fmt.Sprintf(" Triggered: %s (%s)\n",
inc.TriggeredAt.UTC().Format("2006-01-02 15:04 UTC"), humanAgo(now, inc.TriggeredAt)))
if inc.AssignedTo != "" {
b.WriteString(fmt.Sprintf(" Assigned: %s\n", styleBold.Render(inc.AssignedTo)))
} else {
b.WriteString(line(styleMuted, " Assigned: nobody"))
}
if inc.AcknowledgedByID != nil {
ackAt := ""
if inc.AcknowledgedAt != nil {
ackAt = " at " + inc.AcknowledgedAt.UTC().Format("2006-01-02 15:04 UTC")
}
b.WriteString(line(styleResolved,
fmt.Sprintf(" Acked: %s%s", inc.AcknowledgedBy, ackAt)))
} else {
b.WriteString(line(styleMuted, " Acked: not acknowledged"))
}
if inc.IsSnoozed() {
b.WriteString(line(styleSnoozed, fmt.Sprintf(" Snoozed: until %s (%s)",
inc.SnoozedUntil.UTC().Format("2006-01-02 15:04 UTC"), humanUntil(now, *inc.SnoozedUntil))))
}
if inc.ResolvedAt != nil {
source := ""
if inc.ResolutionSource != nil {
source = " · " + *inc.ResolutionSource
}
b.WriteString(fmt.Sprintf(" Resolved: %s (%s)%s\n",
inc.ResolvedAt.UTC().Format("2006-01-02 15:04 UTC"), humanAgo(now, *inc.ResolvedAt), source))
}
if inc.ArchivedAt != nil {
b.WriteString(line(styleMuted, " Archived: "+
inc.ArchivedAt.UTC().Format("2006-01-02 15:04 UTC")))
}
b.WriteString("\n")
// Group labels — the correlation Alertmanager applied.
if len(inc.GroupLabels) > 0 {
b.WriteString(divider("Grouped By", width))
for _, k := range sortedKeys(inc.GroupLabels) {
b.WriteString(fmt.Sprintf(" %-22s %s\n", k, truncate(inc.GroupLabels[k], contentW-24)))
}
b.WriteString("\n")
}
// Member alerts
b.WriteString(divider(fmt.Sprintf("Alerts (%d)", len(inc.Alerts)), width))
if len(inc.Alerts) == 0 {
b.WriteString(line(styleMuted, " No alerts."))
} else {
for _, a := range inc.Alerts {
marker := styleFiring.Render("●")
if a.Status != "firing" {
marker = styleResolved.Render("✓")
}
instance := a.Labels["instance"]
if instance == "" {
instance = a.Fingerprint
}
b.WriteString(fmt.Sprintf(" %s %-28s %-26s %s\n",
marker, truncate(a.Name, 28), truncate(instance, 26),
styleMuted.Render("last seen "+humanAgo(now, a.ReceivedAt))))
}
}
b.WriteString("\n")
// Timeline — the only history the server keeps.
notes := noteEvents(timeline)
b.WriteString(divider(fmt.Sprintf("Timeline (%d events, %d notes)", len(timeline), len(notes)), width))
if len(timeline) == 0 {
b.WriteString(line(styleMuted, " Nothing recorded yet."))
} else {
noteIndex := 0
for _, e := range timeline {
when := styleMuted.Render(humanAgo(now, e.CreatedAt))
if e.Type != api.EventNote {
b.WriteString(fmt.Sprintf(" %-52s %s\n", eventLabel(e), when))
continue
}
marker := " "
author := styleBold.Render(e.Username)
if noteIndex == cursor {
marker = styleSelected.Render("> ")
author = styleSelected.Render(e.Username)
}
b.WriteString(fmt.Sprintf("%s%-50s %s\n", marker, author+" wrote", when))
b.WriteString(" " + e.Detail + "\n")
noteIndex++
}
}
return b.String()
}
// incidentStatusLabel is the headline badge for an incident.
func incidentStatusLabel(inc api.Incident) string {
switch inc.Status {
case api.StatusTriggered:
if inc.IsSnoozed() {
return "● TRIGGERED (snoozed)"
}
return "● TRIGGERED"
case api.StatusAcknowledged:
if inc.IsSnoozed() {
return "◐ ACKNOWLEDGED (snoozed)"
}
return "◐ ACKNOWLEDGED"
case api.StatusResolved:
return "✓ RESOLVED"
default:
return strings.ToUpper(inc.Status)
}
}
// eventLabel renders one timeline entry as a sentence. Unrecognised types fall
// back to their raw name rather than vanishing — the server may add more.
func eventLabel(e api.IncidentEvent) string {
who := e.Username
switch e.Type {
case api.EventTriggered:
return " Incident opened"
case api.EventAlertAdded:
if e.AlertID != nil {
return fmt.Sprintf(" Alert #%d joined", *e.AlertID)
}
return " Alert joined"
case api.EventAlertResolved:
if e.AlertID != nil {
return fmt.Sprintf(" Alert #%d resolved", *e.AlertID)
}
return " Alert resolved"
case api.EventAcknowledged:
return " Acknowledged by " + who
case api.EventUnacknowledged:
return " Acknowledgement cleared by " + who
case api.EventAssigned:
// On an assigned event the user is the assignee, not the actor.
return " Assigned to " + who
case api.EventSnoozed:
if e.Detail != "" {
return " Snoozed until " + e.Detail
}
return " Snoozed"
case api.EventUnsnoozed:
return " Snooze cleared by " + who
case api.EventResolved:
if who != "" {
return " Resolved by " + who
}
return " Resolved (all alerts stopped firing)"
case api.EventNotified:
// An empty username here is not "the server acted": it means the page
// went to the shared fallback topic, so it belongs to nobody.
return fmt.Sprintf(" Notified %s%s", notifiedTarget(who), notifyKind(e.Detail))
case api.EventNotifyFailed:
// The detail is "<kind>: <reason>", and the reason is the point — it is
// the only thing that says why nobody's phone rang.
return truncate(fmt.Sprintf(" Notification to %s failed · %s",
notifiedTarget(who), e.Detail), 52)
default:
label := " " + e.Type
if e.Detail != "" {
label += " · " + e.Detail
}
return label
}
}
// notifiedTarget names who a page reached. The server attaches no user when it
// published to the shared fallback topic, and saying so is the difference
// between "somebody was paged" and "the on-call rota was empty".
func notifiedTarget(username string) string {
if username == "" {
return "the fallback topic"
}
return username
}
// notifyKind renders the notification kind the server puts in Detail. It is an
// open set, so anything unrecognised is shown rather than dropped.
func notifyKind(detail string) string {
if detail == "" {
return ""
}
return " (" + detail + ")"
}
func buildAlertDetailContent(alert api.Alert, width int) string {
now := time.Now()
var b strings.Builder
contentW := width - 4
name := styleAlertName.Render(alert.Name)
var statusStr string
if alert.Status == "firing" {
statusStr = styleFiring.Render("● FIRING")
} else {
label := "✓ RESOLVED"
if alert.ResolutionSource != nil {
label += " · " + *alert.ResolutionSource
}
statusStr = styleResolved.Render(label)
}
gap := contentW - lipgloss.Width(name) - lipgloss.Width(statusStr)
if gap < 1 {
gap = 1
}
b.WriteString("\n " + name + strings.Repeat(" ", gap) + statusStr + "\n\n")
b.WriteString(fmt.Sprintf(" Started: %s (%s)\n",
alert.StartsAt.UTC().Format("2006-01-02 15:04 UTC"), humanAgo(now, alert.StartsAt)))
b.WriteString(fmt.Sprintf(" Last Seen: %s (%s)\n",
alert.ReceivedAt.UTC().Format("2006-01-02 15:04 UTC"), humanAgo(now, alert.ReceivedAt)))
if alert.EndsAt != nil {
b.WriteString(fmt.Sprintf(" Ended: %s\n", alert.EndsAt.UTC().Format("2006-01-02 15:04 UTC")))
}
if alert.GeneratorURL != "" {
b.WriteString(fmt.Sprintf(" Source: %s\n", truncate(alert.GeneratorURL, contentW-12)))
}
if alert.IncidentID != nil {
b.WriteString(fmt.Sprintf(" Incident: %s %s\n",
styleBold.Render(fmt.Sprintf("#%d", *alert.IncidentID)),
styleMuted.Render("press i to open it")))
} else {
b.WriteString(line(styleMuted, " Incident: none"))
}
b.WriteString("\n")
if len(alert.Labels) > 0 {
b.WriteString(divider("Labels", width))
for _, k := range sortedKeys(alert.Labels) {
b.WriteString(fmt.Sprintf(" %-22s %s\n", k, truncate(alert.Labels[k], contentW-24)))
}
b.WriteString("\n")
}
if len(alert.Annotations) > 0 {
b.WriteString(divider("Annotations", width))
for _, k := range sortedKeys(alert.Annotations) {
b.WriteString(fmt.Sprintf(" %-22s %s\n", k, truncate(alert.Annotations[k], contentW-24)))
}
b.WriteString("\n")
}
// Alerts carry no workflow state: it all lives on the incident.
b.WriteString(divider("", width))
b.WriteString(line(styleMuted,
" Alerts are read-only — acknowledge, assign, note and resolve on the incident."))
return b.String()
}
func buildStatsContent(incidents *api.IncidentStats, top []api.TopAlert, byHour []api.HourStat, byDay []api.DayStat, width int) string {
barWidth := width/2 - 10
if barWidth < 8 {
barWidth = 8
}
if barWidth > 40 {
barWidth = 40
}
var b strings.Builder
b.WriteString("\n")
// Response times first: they are what a rota is actually judged on.
b.WriteString(divider("Incident Response", width))
if incidents == nil {
b.WriteString(line(styleMuted, " No data."))
} else {
b.WriteString(fmt.Sprintf(" %-28s %s\n", "Incidents total",
styleBold.Render(fmt.Sprintf("%d", incidents.Total))))
b.WriteString(fmt.Sprintf(" %-28s %s\n", "Triggered",
styleTriggered.Render(fmt.Sprintf("%d", incidents.Triggered))))
b.WriteString(fmt.Sprintf(" %-28s %s\n", "Acknowledged",
styleAcknowledged.Render(fmt.Sprintf("%d", incidents.Acknowledged))))
b.WriteString(fmt.Sprintf(" %-28s %s\n", "Resolved",
styleResolved.Render(fmt.Sprintf("%d", incidents.Resolved))))
b.WriteString(fmt.Sprintf(" %-28s %s\n", "Mean time to acknowledge",
styleBold.Render(humanSeconds(incidents.MTTASeconds))))
b.WriteString(fmt.Sprintf(" %-28s %s\n", "Mean time to resolve",
styleBold.Render(humanSeconds(incidents.MTTRSeconds))))
if incidents.MTTASeconds == nil || incidents.MTTRSeconds == nil {
b.WriteString(line(styleMuted, " (— means nothing has been acknowledged or resolved yet)"))
}
}
b.WriteString("\n")
b.WriteString(divider("Top Alerts", width))
if len(top) == 0 {
b.WriteString(line(styleMuted, " No data."))
} else {
maxCount := top[0].Count
for i, a := range top {
bar := styleResolved.Render(strings.Repeat("█", renderBarWidth(a.Count, maxCount, barWidth)))
b.WriteString(fmt.Sprintf(" %2d. %-30s %s %d\n", i+1, truncate(a.Name, 30), bar, a.Count))
}
}
b.WriteString("\n")
b.WriteString(divider("Alerts by Hour (UTC)", width))
if len(byHour) > 0 {
maxCount := 0
for _, h := range byHour {
if h.Count > maxCount {
maxCount = h.Count
}
}
for _, h := range byHour {
bar := styleFiring.Render(strings.Repeat("█", renderBarWidth(h.Count, maxCount, barWidth)))
b.WriteString(fmt.Sprintf(" %2dh %-*s %d\n", h.Hour, barWidth, bar, h.Count))
}
} else {
b.WriteString(line(styleMuted, " No data."))
}
b.WriteString("\n")
b.WriteString(divider("Alerts by Day", width))
if len(byDay) > 0 {
maxCount := 0
for _, d := range byDay {
if d.Count > maxCount {
maxCount = d.Count
}
}
for _, d := range byDay {
bar := styleAccent.Render(strings.Repeat("█", renderBarWidth(d.Count, maxCount, barWidth)))
b.WriteString(fmt.Sprintf(" %-4s %-*s %d\n", d.DayName[:3], barWidth, bar, d.Count))
}
} else {
b.WriteString(line(styleMuted, " No data."))
}
return b.String()
}
// ── Users ──────────────────────────────────────────────────────────────────
func (m Model) renderUsers() string {
if m.usersLoading {
return "\n" + styleMuted.Render(" Loading users…")
}
if len(m.users) == 0 {
return "\n" + styleMuted.Render(" No users found. Press n to create one.")
}
return "\n" + m.userManageTable.View()
}
func (m Model) renderUserCreate() string {
header := "\n " + styleBold.Render("Create new user") + "\n\n"
usernameLabel := " Username: "
emailLabel := " Email: "
if m.userFormFocus == 0 {
usernameLabel = styleSelected.Render(" Username: ")
} else {
emailLabel = styleSelected.Render(" Email: ")
}
return header +
usernameLabel + m.userFormInputs[0].View() + "\n" +
emailLabel + m.userFormInputs[1].View() + "\n"
}
func (m Model) renderUserNotifyEdit() string {
header := fmt.Sprintf("\n Push notifications for %s\n", styleBold.Render(m.selectedUser.Username))
hint := line(styleMuted,
" The ntfy topic this user's pages go to. Leave it empty to clear it —\n"+
" their incidents then page the server's shared fallback topic, which\n"+
" carries no Acknowledge button.")
label := styleSelected.Render(" Topic: ")
return header + "\n" + hint + "\n" + label + m.ntfyTopicInput.View() + "\n"
}
func (m Model) renderAPIKeyMenu() string {
header := fmt.Sprintf("\n API keys for %s\n", styleBold.Render(m.selectedUser.Username))
warning := line(styleMuted, " Keys cannot be listed — only new keys can be created,\n or existing ones revoked by their integer ID.")
options := "\n" +
styleAccent.Render(" n") + " · create a new API key\n" +
styleAccent.Render(" r") + " · revoke a key by ID\n"
return header + "\n" + warning + options
}
func (m Model) renderAPIKeyCreate() string {
header := fmt.Sprintf("\n New API key for %s\n\n", styleBold.Render(m.selectedUser.Username))
label := styleSelected.Render(" Key name: ")
return header + label + m.apiKeyNameInput.View() + "\n"
}
func (m Model) renderAPIKeyReveal() string {
sep := styleMuted.Render(strings.Repeat("─", m.width))
warn := styleError.Render(" !! COPY NOW — this key will NEVER be shown again !!")
nameLine := fmt.Sprintf(" Key name: %s", styleBold.Render(m.revealedAPIKey.Name))
idLine := fmt.Sprintf(" Key ID: %s %s",
styleBold.Render(fmt.Sprintf("%d", m.revealedAPIKey.ID)),
styleMuted.Render("(save this — needed for future revocation)"))
keyLine := styleResolved.Render(" " + m.revealedAPIKey.Key)
return "\n" + sep + "\n\n" +
warn + "\n\n" +
nameLine + "\n" +
idLine + "\n\n" +
styleMuted.Render(" Key value:") + "\n" +
keyLine + "\n\n" +
sep + "\n"
}
func (m Model) renderAPIKeyRevokeByID() string {
header := fmt.Sprintf("\n Revoke API key for %s\n", styleBold.Render(m.selectedUser.Username))
hint := line(styleMuted, " Enter the integer key ID (shown when the key was created).")
label := styleSelected.Render(" Key ID: ")
return header + "\n" + hint + "\n" + label + m.apiKeyRevokeInput.View() + "\n"
}
// ── Helpers ────────────────────────────────────────────────────────────────
func divider(title string, width int) string {
prefix := "── "
if title != "" {
prefix += title + " "
}
remaining := width - len(prefix) - 2
if remaining > 0 {
prefix += strings.Repeat("─", remaining)
}
return styleMuted.Render(prefix) + "\n"
}
func sortedKeys(m map[string]string) []string {
keys := make([]string, 0, len(m))
for k := range m {
keys = append(keys, k)
}
sort.Strings(keys)
return keys
}
func renderBarWidth(count, maxCount, maxWidth int) int {
if maxCount == 0 {
return 0
}
w := count * maxWidth / maxCount
if w == 0 && count > 0 {
w = 1
}
return w
}
// truncate shortens s to max terminal cells, marking the cut with an ellipsis.
//
// Counted in runes rather than bytes: these strings are laid out against
// fixed-width columns, and a byte cut through a multi-byte rune would both
// mis-measure the column and emit a broken character. Server-supplied text —
// labels, annotations, delivery errors — is not guaranteed to be ASCII.
func truncate(s string, max int) string {
if max < 1 {
return ""
}
r := []rune(s)
if len(r) <= max {
return s
}
return string(r[:max-1]) + "…"
}