feat!: incidents as the primary object

terdut-server v0.4.0 splits the alerts row into two objects, and the
endpoints this client drove for acknowledgement, comments and archiving
are gone. Pointing the same screens at the new paths would have missed
the point of the split: alerts are now Alertmanager's record, read-only
and carrying no human state, while the incident is the thing anyone
actually works on.

Incidents lead the section list and are what the client opens on. The
queue shows severity, status, assignee and age, and the detail view adds
what only exists server-side now: the group labels Alertmanager
correlated on, the member alerts, and an append-only timeline where
system events and notes are interleaved. That timeline is the whole
history the server keeps — alert rows are still mutated in place — so
rendering it in order matters more than styling it.

Actions all move onto the incident: a/A acknowledge, s assign, z/Z
snooze, c note, d delete note, x archive, R resolve.

Two of those need care rather than a keybinding:

  - R, not r, resolves, and it asks first. The server treats a manual
    resolve as terminal: a later occurrence opens a new incident instead
    of reopening this one, and an alert that never stops firing leaves
    the incident closed for good. A stray keypress is not recoverable,
    so the prompt says what it means.
  - x refuses on an open incident rather than archiving it, since
    archiving unresolved work only hides it. Snooze is offered as the
    "not now" answer, and the client treats a snoozed_until in the past
    as not snoozed, matching the server, which sweeps nothing.

Statistics lead with MTTA and MTTR, neither of which was computable
before. The server sends null until something has actually been
acknowledged or resolved, and that renders as — rather than 0: no data
is a different claim from instant.

Alerts keep a tab of their own as the raw feed — useful for asking what
Alertmanager is really sending — with an Incident column replacing Ack
By, and i in the detail view jumping to the incident where something can
be done about it. Archived now holds archived incidents; archiving an
alert is server-side housekeeping and no longer a user action.

BREAKING CHANGE: requires terdut-server v0.4.0 or later. Against an
older server every incident request 404s. Use terdut-tui v0.3.x with
servers before v0.4.0.

internal/tui/model.go

@@ -18,21 +18,27 @@ import (
 type section int
 
 const (
-	sectionAlerts   section = iota
+	// Incidents lead: they are the work. Alerts is the raw feed underneath.
+	sectionIncidents section = iota
+	sectionAlerts
 	sectionArchived
 	sectionSchedule
 	sectionUsers
+
+	sectionCount = 5
 )
 
 type mode int
 
 const (
 	modeDashboard mode = iota
-	modeDetail
-	modeComment
-	modeConfirmDelete
+	modeIncidentDetail
+	modeAlertDetail
+	modeNote
+	modeSnooze
+	modeConfirm
 	modeStats
-	modeScheduleUserPicker
+	modeUserPicker
 	modeUserCreate
 	modeAPIKeyMenu
 	modeAPIKeyCreate
@@ -43,31 +49,70 @@ const (
 type confirmTarget int
 
 const (
-	confirmDeleteComment confirmTarget = iota
+	confirmDeleteNote confirmTarget = iota
+	confirmResolveIncident
 	confirmDeleteScheduleEntry
 	confirmDeleteUser
 )
 
+// pickerTarget says what the user picker is choosing a person for.
+type pickerTarget int
+
+const (
+	pickerSchedule pickerTarget = iota
+	pickerIncidentAssignee
+)
+
+// incidentFilters is the cycle the f key walks in the Incidents section. The
+// empty string is the server default: open, unsnoozed incidents — the queue.
+var incidentFilters = []string{"", api.StatusTriggered, api.StatusAcknowledged, api.StatusResolved, "snoozed"}
+
+// alertFilters is the equivalent cycle for the raw alert feed.
+var alertFilters = []string{"firing", "resolved", "", "archived"}
+
+// incidentQuery translates a filter from the cycle into server query terms.
+func incidentQuery(filter string) (status string, snoozed bool) {
+	if filter == "snoozed" {
+		return "", true
+	}
+	return filter, false
+}
+
+// filterLabel renders a filter for the status bar.
+func filterLabel(filter string) string {
+	if filter == "" {
+		return "open"
+	}
+	return filter
+}
+
 // ── Messages ───────────────────────────────────────────────────────────────
 
 // dashboard
 type connectedMsg struct{}
 type connectErrMsg struct{ err error }
+type incidentsFetchedMsg struct{ incidents []api.Incident }
+type archivedIncidentsFetchedMsg struct{ incidents []api.Incident }
+type incidentActionDoneMsg struct {
+	incidents []api.Incident
+	status    string
+}
 type alertsFetchedMsg struct{ alerts []api.Alert }
-type archivedAlertsFetchedMsg struct{ alerts []api.Alert }
-type alertArchivedMsg struct{ alerts []api.Alert }
-type alertUnarchivedMsg struct{ alerts []api.Alert }
-type statsFetchedMsg struct{ stats api.AlertStats }
+type statsFetchedMsg struct {
+	incidents api.IncidentStats
+	alerts    api.AlertStats
+}
 type fetchDataErrMsg struct{ err error }
 type tickMsg time.Time
 type clearStatusMsg struct{}
 
 // detail
-type alertDetailFetchedMsg struct {
-	alert    api.Alert
-	comments []api.Comment
+type incidentDetailFetchedMsg struct {
+	incident api.Incident
+	timeline []api.IncidentEvent
 }
-type alertDetailErrMsg struct{ err error }
+type alertDetailFetchedMsg struct{ alert api.Alert }
+type detailErrMsg struct{ err error }
 type actionErrMsg struct{ err error }
 type detailStatsFetchedMsg struct {
 	top    []api.TopAlert
@@ -108,34 +153,46 @@ type Model struct {
 	height        int
 
 	// Connection & dashboard
-	connected    bool
-	loading      bool
-	err          error
-	statusMsg    string
-	alerts       []api.Alert
-	stats        *api.AlertStats
-	filterStatus string
-	alertTable   table.Model
+	connected     bool
+	loading       bool
+	err           error
+	statusMsg     string
+	incidentStats *api.IncidentStats
+	alertStats    *api.AlertStats
 
-	// Archived alerts
-	archivedAlerts  []api.Alert
-	archivedLoading bool
-	archivedTable   table.Model
+	// Incidents
+	incidents      []api.Incident
+	incidentFilter string
+	incidentTable  table.Model
 
-	// Detail
-	selectedAlert  api.Alert
-	comments       []api.Comment
-	commentCursor  int
-	detailLoading  bool
-	detailViewport viewport.Model
+	// Alerts (read-only feed)
+	alerts      []api.Alert
+	alertFilter string
+	alertTable  table.Model
 
-	// Comment compose
-	commentInput textinput.Model
+	// Archived incidents
+	archivedIncidents []api.Incident
+	archivedLoading   bool
+	archivedTable     table.Model
 
-	// Confirm delete
-	confirmTarget       confirmTarget
-	pendingDeleteID     int64          // comment ID
-	pendingDeleteEntry  *api.ScheduleEntry
+	// Incident detail
+	selectedIncident api.Incident
+	timeline         []api.IncidentEvent
+	noteCursor       int
+	detailLoading    bool
+	detailViewport   viewport.Model
+
+	// Alert detail
+	selectedAlert api.Alert
+
+	// Note compose & snooze
+	noteInput   textinput.Model
+	snoozeInput textinput.Model
+
+	// Confirm
+	confirmTarget      confirmTarget
+	pendingDeleteID    int64 // note event ID
+	pendingDeleteEntry *api.ScheduleEntry
 
 	// Stats
 	topAlerts     []api.TopAlert
@@ -143,6 +200,9 @@ type Model struct {
 	dayStats      []api.DayStat
 	statsLoading  bool
 	statsViewport viewport.Model
+	// statsReturnMode is where esc goes back to, since stats opens from both
+	// the dashboard and an incident.
+	statsReturnMode mode
 
 	// Schedule
 	scheduleWindow  time.Time
@@ -152,10 +212,11 @@ type Model struct {
 	scheduleLoading bool
 	scheduleTable   table.Model
 
-	// User picker (schedule assignment)
+	// User picker (schedule assignment and incident assignee)
 	users            []api.User
 	usersLoading     bool
 	userPickerTable  table.Model
+	pickerTarget     pickerTarget
 	pickerAssignWeek bool
 
 	// User management section
@@ -174,6 +235,9 @@ type Model struct {
 func NewModel(client *api.Client, serverURL string, refreshInterval time.Duration) Model {
 	ts := defaultTableStyles()
 
+	incidentT := table.New(table.WithFocused(true))
+	incidentT.SetStyles(ts)
+
 	alertT := table.New(table.WithFocused(true))
 	alertT.SetStyles(ts)
 
@@ -189,9 +253,13 @@ func NewModel(client *api.Client, serverURL string, refreshInterval time.Duratio
 	manageT := table.New(table.WithFocused(true))
 	manageT.SetStyles(ts)
 
-	ti := textinput.New()
-	ti.Placeholder = "type your comment…"
-	ti.CharLimit = 1000
+	noteIn := textinput.New()
+	noteIn.Placeholder = "type your note…"
+	noteIn.CharLimit = 1000
+
+	snoozeIn := textinput.New()
+	snoozeIn.Placeholder = "duration, e.g. 2h or 30m"
+	snoozeIn.CharLimit = 16
 
 	usernameIn := textinput.New()
 	usernameIn.Placeholder = "username"
@@ -221,14 +289,17 @@ func NewModel(client *api.Client, serverURL string, refreshInterval time.Duratio
 		client:            client,
 		serverURL:         serverURL,
 		refreshInterval:   refreshInterval,
-		activeSection:     sectionAlerts,
+		activeSection:     sectionIncidents,
 		mode:              modeDashboard,
 		loading:           true,
-		filterStatus:      "firing",
-		commentCursor:     -1,
+		incidentFilter:    "",
+		alertFilter:       "firing",
+		noteCursor:        -1,
+		incidentTable:     incidentT,
 		alertTable:        alertT,
 		archivedTable:     archivedT,
-		commentInput:      ti,
+		noteInput:         noteIn,
+		snoozeInput:       snoozeIn,
 		scheduleWindow:    window,
 		scheduleTable:     schedT,
 		userPickerTable:   pickerT,
@@ -257,34 +328,28 @@ func defaultTableStyles() table.Styles {
 	return s
 }
 
+func (m *Model) rebuildIncidentTable() {
+	m.incidentTable.SetColumns(incidentColumns(m.width))
+	m.incidentTable.SetRows(incidentRows(m.incidents))
+	m.incidentTable.SetHeight(tableHeight(m.height, 8))
+}
+
 func (m *Model) rebuildTable() {
 	m.alertTable.SetColumns(alertColumns(m.width))
 	m.alertTable.SetRows(alertRows(m.alerts))
-	h := m.height - 8
-	if h < 1 {
-		h = 1
-	}
-	m.alertTable.SetHeight(h)
+	m.alertTable.SetHeight(tableHeight(m.height, 8))
 }
 
 func (m *Model) rebuildArchivedTable() {
-	m.archivedTable.SetColumns(alertColumns(m.width))
-	m.archivedTable.SetRows(alertRows(m.archivedAlerts))
-	h := m.height - 8
-	if h < 1 {
-		h = 1
-	}
-	m.archivedTable.SetHeight(h)
+	m.archivedTable.SetColumns(incidentColumns(m.width))
+	m.archivedTable.SetRows(incidentRows(m.archivedIncidents))
+	m.archivedTable.SetHeight(tableHeight(m.height, 8))
 }
 
 func (m *Model) rebuildScheduleTable() {
 	m.scheduleTable.SetColumns(scheduleColumns(m.width))
 	m.scheduleTable.SetRows(scheduleRows(m.scheduleDays))
-	h := m.height - 10
-	if h < 1 {
-		h = 1
-	}
-	m.scheduleTable.SetHeight(h)
+	m.scheduleTable.SetHeight(tableHeight(m.height, 10))
 }
 
 func (m *Model) rebuildUserPickerTable() {
@@ -294,11 +359,7 @@ func (m *Model) rebuildUserPickerTable() {
 		rows[i] = table.Row{u.Username, u.Email}
 	}
 	m.userPickerTable.SetRows(rows)
-	h := m.height - 10
-	if h < 1 {
-		h = 1
-	}
-	m.userPickerTable.SetHeight(h)
+	m.userPickerTable.SetHeight(tableHeight(m.height, 10))
 }
 
 func (m *Model) rebuildUserManageTable() {
@@ -308,27 +369,37 @@ func (m *Model) rebuildUserManageTable() {
 		rows[i] = table.Row{u.Username, u.Email, u.CreatedAt.UTC().Format("2006-01-02")}
 	}
 	m.userManageTable.SetRows(rows)
-	h := m.height - 10
+	m.userManageTable.SetHeight(tableHeight(m.height, 10))
+}
+
+func tableHeight(windowHeight, chrome int) int {
+	h := windowHeight - chrome
 	if h < 1 {
 		h = 1
 	}
-	m.userManageTable.SetHeight(h)
+	return h
 }
 
 func (m *Model) refreshDetailContent() {
 	if m.width == 0 {
 		return
 	}
-	m.detailViewport.SetContent(buildDetailContent(m.selectedAlert, m.comments, m.commentCursor, m.width))
+	if m.mode == modeAlertDetail {
+		m.detailViewport.SetContent(buildAlertDetailContent(m.selectedAlert, m.width))
+		return
+	}
+	m.detailViewport.SetContent(
+		buildIncidentDetailContent(m.selectedIncident, m.timeline, m.noteCursor, m.width))
 }
 
 func (m *Model) refreshStatsContent() {
-	m.statsViewport.SetContent(buildStatsContent(m.topAlerts, m.hourStats, m.dayStats, m.width))
+	m.statsViewport.SetContent(
+		buildStatsContent(m.incidentStats, m.topAlerts, m.hourStats, m.dayStats, m.width))
 }
 
 func (m Model) detailViewportHeight() int {
 	h := m.height - 5
-	if m.mode == modeComment {
+	if m.mode == modeNote || m.mode == modeSnooze {
 		h -= 2
 	}
 	if h < 1 {
@@ -337,8 +408,40 @@ func (m Model) detailViewportHeight() int {
 	return h
 }
 
+// noteEvents filters a timeline down to the deletable entries, which is what
+// the [ and ] cursor walks.
+func noteEvents(timeline []api.IncidentEvent) []api.IncidentEvent {
+	notes := make([]api.IncidentEvent, 0, len(timeline))
+	for _, e := range timeline {
+		if e.Type == api.EventNote {
+			notes = append(notes, e)
+		}
+	}
+	return notes
+}
+
 // ── Column definitions ─────────────────────────────────────────────────────
 
+func incidentColumns(width int) []table.Column {
+	const sevW, statusW, timeW = 9, 15, 12
+	titleW := width/2 - 10
+	if titleW < 20 {
+		titleW = 20
+	}
+	// 10 = bubbles' Padding(0, 1) on each of the five cells.
+	assigneeW := width - sevW - titleW - statusW - timeW - 10
+	if assigneeW < 8 {
+		assigneeW = 8
+	}
+	return []table.Column{
+		{Title: "Sev", Width: sevW},
+		{Title: "Incident", Width: titleW},
+		{Title: "Status", Width: statusW},
+		{Title: "Assignee", Width: assigneeW},
+		{Title: "Triggered", Width: timeW},
+	}
+}
+
 func alertColumns(width int) []table.Column {
 	const statusW, timeW = 10, 12
 	nameW := width/2 - 14
@@ -346,16 +449,16 @@ func alertColumns(width int) []table.Column {
 		nameW = 20
 	}
 	// 10 = bubbles' Padding(0, 1) on each of the five cells.
-	ackW := width - nameW - statusW - 2*timeW - 10
-	if ackW < 8 {
-		ackW = 8
+	incW := width - nameW - statusW - 2*timeW - 10
+	if incW < 8 {
+		incW = 8
 	}
 	return []table.Column{
 		{Title: "Name", Width: nameW},
 		{Title: "Status", Width: statusW},
 		{Title: "Started", Width: timeW},
 		{Title: "Last Seen", Width: timeW},
-		{Title: "Ack By", Width: ackW},
+		{Title: "Incident", Width: incW},
 	}
 }
 
@@ -399,11 +502,38 @@ func userManageColumns(width int) []table.Column {
 
 // ── Row builders ───────────────────────────────────────────────────────────
 
+func incidentRows(incidents []api.Incident) []table.Row {
+	now := time.Now()
+	rows := make([]table.Row, len(incidents))
+	for i, inc := range incidents {
+		severity := inc.Severity
+		if severity == "" {
+			severity = "—"
+		}
+		// bubbles' table renders plain strings, so a snoozed incident is marked
+		// in the status cell rather than styled.
+		status := inc.Status
+		if inc.IsSnoozed() {
+			status += " (zzz)"
+		}
+		assignee := inc.AssignedTo
+		if assignee == "" {
+			assignee = "—"
+		}
+		rows[i] = table.Row{severity, inc.Title, status, assignee, humanAgo(now, inc.TriggeredAt)}
+	}
+	return rows
+}
+
 func alertRows(alerts []api.Alert) []table.Row {
 	now := time.Now()
 	rows := make([]table.Row, len(alerts))
 	for i, a := range alerts {
-		rows[i] = table.Row{a.Name, a.Status, humanAgo(now, a.StartsAt), humanAgo(now, a.ReceivedAt), a.AcknowledgedBy}
+		incident := "—"
+		if a.IncidentID != nil {
+			incident = fmt.Sprintf("#%d", *a.IncidentID)
+		}
+		rows[i] = table.Row{a.Name, a.Status, humanAgo(now, a.StartsAt), humanAgo(now, a.ReceivedAt), incident}
 	}
 	return rows
 }
@@ -457,28 +587,49 @@ func humanAgo(now, t time.Time) string {
 	if d < 0 {
 		d = 0
 	}
+	return humanDuration(d) + " ago"
+}
+
+// humanUntil renders a future deadline, used for snooze expiry.
+func humanUntil(now, t time.Time) string {
+	d := t.Sub(now)
+	if d <= 0 {
+		return "expired"
+	}
+	return "in " + humanDuration(d)
+}
+
+func humanDuration(d time.Duration) string {
 	switch {
 	case d < time.Minute:
-		return "just now"
+		return "moments"
 	case d < time.Hour:
-		return fmt.Sprintf("%dm ago", int(d.Minutes()))
+		return fmt.Sprintf("%dm", int(d.Minutes()))
 	case d < 24*time.Hour:
 		h := int(d.Hours())
 		m := int(d.Minutes()) % 60
 		if m == 0 {
-			return fmt.Sprintf("%dh ago", h)
+			return fmt.Sprintf("%dh", h)
 		}
-		return fmt.Sprintf("%dh %dm ago", h, m)
+		return fmt.Sprintf("%dh %dm", h, m)
 	default:
 		days := int(d.Hours()) / 24
 		h := int(d.Hours()) % 24
 		if h == 0 {
-			return fmt.Sprintf("%dd ago", days)
+			return fmt.Sprintf("%dd", days)
 		}
-		return fmt.Sprintf("%dd %dh ago", days, h)
+		return fmt.Sprintf("%dd %dh", days, h)
 	}
 }
 
+// humanSeconds renders an MTTA/MTTR average.
+func humanSeconds(secs *float64) string {
+	if secs == nil {
+		return "—"
+	}
+	return humanDuration(time.Duration(*secs) * time.Second)
+}
+
 // ── Commands ───────────────────────────────────────────────────────────────
 
 func connectCmd(client *api.Client) tea.Cmd {
@@ -490,9 +641,36 @@ func connectCmd(client *api.Client) tea.Cmd {
 	}
 }
 
-func fetchAlertsCmd(client *api.Client, status string) tea.Cmd {
+func fetchIncidentsCmd(client *api.Client, filter string) tea.Cmd {
 	return func() tea.Msg {
-		alerts, err := client.ListAlerts(status, false, 500)
+		status, snoozed := incidentQuery(filter)
+		incidents, err := client.ListIncidents(status, false, snoozed, 500)
+		if err != nil {
+			return fetchDataErrMsg{err}
+		}
+		return incidentsFetchedMsg{incidents}
+	}
+}
+
+func fetchArchivedIncidentsCmd(client *api.Client) tea.Cmd {
+	return func() tea.Msg {
+		// Archived incidents are all resolved, so the status filter has to be
+		// widened past the server's open-only default or nothing comes back.
+		incidents, err := client.ListIncidents(api.StatusResolved, true, false, 500)
+		if err != nil {
+			return fetchDataErrMsg{err}
+		}
+		return archivedIncidentsFetchedMsg{incidents}
+	}
+}
+
+func fetchAlertsCmd(client *api.Client, filter string) tea.Cmd {
+	return func() tea.Msg {
+		status, archived := filter, false
+		if filter == "archived" {
+			status, archived = "", true
+		}
+		alerts, err := client.ListAlerts(status, archived, 500)
 		if err != nil {
 			return fetchDataErrMsg{err}
 		}
@@ -500,49 +678,122 @@ func fetchAlertsCmd(client *api.Client, status string) tea.Cmd {
 	}
 }
 
-func fetchArchivedAlertsCmd(client *api.Client) tea.Cmd {
-	return func() tea.Msg {
-		alerts, err := client.ListAlerts("", true, 500)
-		if err != nil {
-			return fetchDataErrMsg{err}
-		}
-		return archivedAlertsFetchedMsg{alerts}
-	}
-}
-
-func archiveAlertCmd(client *api.Client, alertID int64, filterStatus string) tea.Cmd {
-	return func() tea.Msg {
-		if _, err := client.ArchiveAlert(alertID); err != nil {
-			return actionErrMsg{err}
-		}
-		alerts, err := client.ListAlerts(filterStatus, false, 500)
-		if err != nil {
-			return actionErrMsg{err}
-		}
-		return alertArchivedMsg{alerts}
-	}
-}
-
-func unarchiveAlertCmd(client *api.Client, alertID int64) tea.Cmd {
-	return func() tea.Msg {
-		if err := client.UnarchiveAlert(alertID); err != nil {
-			return actionErrMsg{err}
-		}
-		alerts, err := client.ListAlerts("", true, 500)
-		if err != nil {
-			return actionErrMsg{err}
-		}
-		return alertUnarchivedMsg{alerts}
-	}
-}
-
 func fetchStatsCmd(client *api.Client) tea.Cmd {
 	return func() tea.Msg {
-		stats, err := client.GetAlertStats()
+		incidents, err := client.GetIncidentStats()
 		if err != nil {
 			return fetchDataErrMsg{err}
 		}
-		return statsFetchedMsg{*stats}
+		alerts, err := client.GetAlertStats()
+		if err != nil {
+			return fetchDataErrMsg{err}
+		}
+		return statsFetchedMsg{incidents: *incidents, alerts: *alerts}
+	}
+}
+
+// incidentDetail reloads an incident and its timeline. Every detail-mode action
+// funnels through it so the view always reflects what the server just did.
+func incidentDetail(client *api.Client, id int64) tea.Msg {
+	incident, err := client.GetIncident(id)
+	if err != nil {
+		return detailErrMsg{err}
+	}
+	timeline, err := client.GetIncidentTimeline(id)
+	if err != nil {
+		return detailErrMsg{err}
+	}
+	return incidentDetailFetchedMsg{incident: *incident, timeline: timeline}
+}
+
+func fetchIncidentDetailCmd(client *api.Client, id int64) tea.Cmd {
+	return func() tea.Msg { return incidentDetail(client, id) }
+}
+
+// incidentActionCmd performs an action then reloads the detail view, reporting
+// the server's error rather than a stale success.
+func incidentActionCmd(client *api.Client, id int64, action func() error) tea.Cmd {
+	return func() tea.Msg {
+		if err := action(); err != nil {
+			return actionErrMsg{err}
+		}
+		return incidentDetail(client, id)
+	}
+}
+
+func acknowledgeIncidentCmd(client *api.Client, id int64) tea.Cmd {
+	return incidentActionCmd(client, id, func() error {
+		_, err := client.AcknowledgeIncident(id)
+		return err
+	})
+}
+
+func unacknowledgeIncidentCmd(client *api.Client, id int64) tea.Cmd {
+	return incidentActionCmd(client, id, func() error { return client.UnacknowledgeIncident(id) })
+}
+
+func resolveIncidentCmd(client *api.Client, id int64) tea.Cmd {
+	return incidentActionCmd(client, id, func() error {
+		_, err := client.ResolveIncident(id)
+		return err
+	})
+}
+
+func assignIncidentCmd(client *api.Client, id, userID int64) tea.Cmd {
+	return incidentActionCmd(client, id, func() error {
+		_, err := client.AssignIncident(id, userID)
+		return err
+	})
+}
+
+func snoozeIncidentCmd(client *api.Client, id int64, duration string) tea.Cmd {
+	return incidentActionCmd(client, id, func() error {
+		_, err := client.SnoozeIncident(id, duration)
+		return err
+	})
+}
+
+func unsnoozeIncidentCmd(client *api.Client, id int64) tea.Cmd {
+	return incidentActionCmd(client, id, func() error { return client.UnsnoozeIncident(id) })
+}
+
+func addNoteCmd(client *api.Client, id int64, content string) tea.Cmd {
+	return incidentActionCmd(client, id, func() error {
+		_, err := client.AddNote(id, content)
+		return err
+	})
+}
+
+func deleteNoteCmd(client *api.Client, id, eventID int64) tea.Cmd {
+	return incidentActionCmd(client, id, func() error { return client.DeleteNote(id, eventID) })
+}
+
+// archiveIncidentCmd archives from the list view, so it reloads the list rather
+// than a detail pane.
+func archiveIncidentCmd(client *api.Client, id int64, filter string) tea.Cmd {
+	return func() tea.Msg {
+		if _, err := client.ArchiveIncident(id); err != nil {
+			return actionErrMsg{err}
+		}
+		status, snoozed := incidentQuery(filter)
+		incidents, err := client.ListIncidents(status, false, snoozed, 500)
+		if err != nil {
+			return actionErrMsg{err}
+		}
+		return incidentActionDoneMsg{incidents: incidents, status: "Incident archived"}
+	}
+}
+
+func unarchiveIncidentCmd(client *api.Client, id int64) tea.Cmd {
+	return func() tea.Msg {
+		if err := client.UnarchiveIncident(id); err != nil {
+			return actionErrMsg{err}
+		}
+		incidents, err := client.ListIncidents(api.StatusResolved, true, false, 500)
+		if err != nil {
+			return actionErrMsg{err}
+		}
+		return archivedIncidentsFetchedMsg{incidents}
 	}
 }
 
@@ -550,78 +801,9 @@ func fetchAlertDetailCmd(client *api.Client, alertID int64) tea.Cmd {
 	return func() tea.Msg {
 		alert, err := client.GetAlert(alertID)
 		if err != nil {
-			return alertDetailErrMsg{err}
+			return detailErrMsg{err}
 		}
-		comments, err := client.GetComments(alertID)
-		if err != nil {
-			return alertDetailErrMsg{err}
-		}
-		return alertDetailFetchedMsg{alert: *alert, comments: comments}
-	}
-}
-
-func acknowledgeCmd(client *api.Client, alertID int64) tea.Cmd {
-	return func() tea.Msg {
-		alert, err := client.AcknowledgeAlert(alertID)
-		if err != nil {
-			return actionErrMsg{err}
-		}
-		comments, err := client.GetComments(alertID)
-		if err != nil {
-			return actionErrMsg{err}
-		}
-		return alertDetailFetchedMsg{alert: *alert, comments: comments}
-	}
-}
-
-func unacknowledgeCmd(client *api.Client, alertID int64) tea.Cmd {
-	return func() tea.Msg {
-		if err := client.UnacknowledgeAlert(alertID); err != nil {
-			return actionErrMsg{err}
-		}
-		alert, err := client.GetAlert(alertID)
-		if err != nil {
-			return actionErrMsg{err}
-		}
-		comments, err := client.GetComments(alertID)
-		if err != nil {
-			return actionErrMsg{err}
-		}
-		return alertDetailFetchedMsg{alert: *alert, comments: comments}
-	}
-}
-
-func addCommentCmd(client *api.Client, alertID int64, content string) tea.Cmd {
-	return func() tea.Msg {
-		if _, err := client.AddComment(alertID, content); err != nil {
-			return actionErrMsg{err}
-		}
-		alert, err := client.GetAlert(alertID)
-		if err != nil {
-			return actionErrMsg{err}
-		}
-		comments, err := client.GetComments(alertID)
-		if err != nil {
-			return actionErrMsg{err}
-		}
-		return alertDetailFetchedMsg{alert: *alert, comments: comments}
-	}
-}
-
-func deleteCommentCmd(client *api.Client, alertID, commentID int64) tea.Cmd {
-	return func() tea.Msg {
-		if err := client.DeleteComment(alertID, commentID); err != nil {
-			return actionErrMsg{err}
-		}
-		alert, err := client.GetAlert(alertID)
-		if err != nil {
-			return actionErrMsg{err}
-		}
-		comments, err := client.GetComments(alertID)
-		if err != nil {
-			return actionErrMsg{err}
-		}
-		return alertDetailFetchedMsg{alert: *alert, comments: comments}
+		return alertDetailFetchedMsg{alert: *alert}
 	}
 }