Persist current world history

cmd/vrc_osc_gui/history_view_windows.go

@@ -228,6 +228,7 @@ func historyVisitSource() []historyVisitRecord {
 		})
 	}
 	if label, since, ok := currentWorldVisitInfo(); ok && strings.TrimSpace(label) != "" && !since.IsZero() {
+		if !hasOpenHistoryVisit(records, label, since) {
 			records = append(records, historyVisitRecord{
 				Key:        historyVisitKey(label, since, time.Time{}, "", "", true),
 				WorldLabel: label,
@@ -235,6 +236,7 @@ func historyVisitSource() []historyVisitRecord {
 				Current:    true,
 			})
 		}
+	}
 	sort.SliceStable(records, func(i, j int) bool {
 		ti := records[i].End
 		if ti.IsZero() {
@@ -252,6 +254,22 @@ func historyVisitSource() []historyVisitRecord {
 	return records
 }
 
+func hasOpenHistoryVisit(records []historyVisitRecord, label string, since time.Time) bool {
+	label = strings.TrimSpace(label)
+	for _, record := range records {
+		if !record.End.IsZero() || record.Start.IsZero() {
+			continue
+		}
+		if !record.Start.Equal(since) {
+			continue
+		}
+		if strings.EqualFold(strings.TrimSpace(record.WorldLabel), label) {
+			return true
+		}
+	}
+	return false
+}
+
 func historyVisitKey(label string, start, end time.Time, worldID, instanceID string, current bool) string {
 	key := strings.TrimSpace(label)
 	if worldID != "" {
@@ -342,6 +360,45 @@ func historyEventsFromSnapshot() []historyEventRecord {
 	return out
 }
 
+func historyEventsWithFallback() []historyEventRecord {
+	events := historyEventsFromSnapshot()
+	if len(events) > 0 {
+		return events
+	}
+	users, ok := currentUsersFromVRChatLog()
+	if !ok || len(users) == 0 {
+		return nil
+	}
+	out := make([]historyEventRecord, 0, len(users))
+	for _, user := range users {
+		name := strings.TrimSpace(user.Name)
+		if name == "" {
+			continue
+		}
+		if !user.LastJoin.IsZero() {
+			out = append(out, historyEventRecord{
+				At:   user.LastJoin,
+				Kind: "join",
+				Name: name,
+			})
+		}
+		if !user.Present && !user.LastLeave.IsZero() {
+			out = append(out, historyEventRecord{
+				At:   user.LastLeave,
+				Kind: "leave",
+				Name: name,
+			})
+		}
+	}
+	sort.SliceStable(out, func(i, j int) bool {
+		if out[i].At.Equal(out[j].At) {
+			return strings.ToLower(out[i].Name) < strings.ToLower(out[j].Name)
+		}
+		return out[i].At.Before(out[j].At)
+	})
+	return out
+}
+
 func decodeHistoryEventsSnapshot(b []byte) []historyEventRecord {
 	type snapshot struct {
 		UpdatedAt time.Time `json:"updated_at"`
@@ -408,7 +465,7 @@ func historyVisitsForDay(app *guiApp, day time.Time) []historyDetailRow {
 	if !historyInQueryRange(day, q) {
 		return nil
 	}
-	events := historyEventsFromSnapshot()
+	events := historyEventsWithFallback()
 	visits := historyVisitSource()
 	return historyVisitsForDayFromData(app, day, visits, events, q)
 }
@@ -502,7 +559,7 @@ func historyCalendarCellsForMonth(app *guiApp) []historyCalendarCell {
 		monthStart = time.Now()
 	}
 	monthStart = time.Date(monthStart.Year(), monthStart.Month(), 1, 0, 0, 0, 0, monthStart.Location())
-	events := historyEventsFromSnapshot()
+	events := historyEventsWithFallback()
 	visits := historyVisitSource()
 	return historyCalendarCellsForMonthFromData(app, monthStart, visits, events, q)
 }
@@ -591,7 +648,7 @@ func exportHistoryDay(app *guiApp, day time.Time, selected map[string]bool) (str
 }
 
 func exportHistoryDayFromRequest(req historyExportRequest) (string, error) {
-	events := historyEventsFromSnapshot()
+	events := historyEventsWithFallback()
 	visits := historyVisitSource()
 	rows := append([]historyDetailRow(nil), req.Rows...)
 	if len(rows) == 0 {
@@ -795,7 +852,7 @@ func appendExportGuestSnapshot(b *strings.Builder, day time.Time, q historyQuery
 	if b == nil {
 		return
 	}
-	guests := readGuestSnapshot()
+	guests := guestSnapshotForExport()
 	dayStart, dayEnd := historyDayBounds(day)
 	type guestLine struct {
 		name    string
@@ -848,6 +905,24 @@ func appendExportGuestSnapshot(b *strings.Builder, day time.Time, q historyQuery
 	}
 }
 
+func guestSnapshotForExport() []userState {
+	guests := readGuestSnapshot()
+	if len(guests) > 0 {
+		out := make([]userState, 0, len(guests))
+		for _, guest := range guests {
+			out = append(out, userState{
+				Name:      guest.Name,
+				Present:   guest.Present,
+				LastJoin:  guest.LastJoin,
+				LastLeave: guest.LastLeave,
+			})
+		}
+		return out
+	}
+	users, _ := currentUsersFromJoinLeave()
+	return users
+}
+
 func cloneHistorySelection(selected map[string]bool) map[string]bool {
 	if len(selected) == 0 {
 		return nil
@@ -887,7 +962,7 @@ func refreshHistoryCache(app *guiApp, force bool) bool {
 	if !force && app.historyCacheLoaded && !app.historyReloadPending {
 		return false
 	}
-	events := historyEventsFromSnapshot()
+	events := historyEventsWithFallback()
 	visits := historyVisitSource()
 	q := historyQueryFromApp(app)
 	app.historyRows = historyRows()
@@ -1218,9 +1293,17 @@ func paintHistoryDetailPane(hwnd uintptr, app *guiApp) uintptr {
 			border = clrAccentGreen
 		}
 		drawSettingsBox(hdc, row.Rect, fill, border)
+		duration := humanDurationLabel(row.Start, row.End, row.Current)
+		durationWidth := measureTextWidth(hdc, duration, app.hFont)
+		durationX := row.Rect.Right - 12 - durationWidth
+		if durationX < row.Rect.Left+260 {
+			durationX = row.Rect.Left + 260
+		}
 		drawPaneText(hdc, row.Rect.Left+12, y+6, "入室 "+historyEntryTimeLabel(row.Start, false, row.Current), app.hFont, clrMutedText)
-		drawPaneText(hdc, row.Rect.Left+146, y+6, "退室 "+historyEntryTimeLabel(row.End, true, row.Current), app.hFont, clrMutedText)
+		drawPaneText(hdc, row.Rect.Left+136, y+6, "退室 "+historyEntryTimeLabel(row.End, true, row.Current), app.hFont, clrMutedText)
-		drawPaneText(hdc, row.Rect.Right-110, y+6, humanDurationLabel(row.Start, row.End, row.Current), app.hFont, clrMutedText)
+		if durationX+durationWidth < row.Rect.Right-8 {
+			drawPaneText(hdc, durationX, y+6, duration, app.hFont, clrMutedText)
+		}
 		label := ellipsizeTextToWidth(hdc, row.WorldLabel, row.Rect.Right-row.Rect.Left-150, app.joinBoldHFont)
 		if label == "" {
 			label = "(unknown)"
@@ -1316,12 +1399,12 @@ func isMidnight(t time.Time) bool {
 
 func historyEntryTimeLabel(t time.Time, isEnd bool, current bool) string {
 	if t.IsZero() {
-		if current {
+		if current && isEnd {
 			return "now"
 		}
 		return ""
 	}
-	if current {
+	if current && isEnd {
 		return "now"
 	}
 	if isEnd && isMidnight(t) {

cmd/vrc_osc_gui/window_windows.go

@@ -28,6 +28,7 @@ const (
 	wsVisible             = 0x10000000
 	wsChild               = 0x40000000
 	wsPopup               = 0x80000000
+	wsSizeBox             = 0x00040000
 	wsClipChildren        = 0x02000000
 	wsClipSiblings        = 0x04000000
 	wsBorder              = 0x00800000
@@ -42,6 +43,9 @@ const (
 	wmPaint               = 0x000F
 	wmEraseBkgnd          = 0x0014
 	wmSize                = 0x0005
+	wmNCCalcSize          = 0x0083
+	wmNCPaint             = 0x0085
+	wmGetMinMaxInfo       = 0x0024
 	wmVScroll             = 0x0115
 	wmMouseWheel          = 0x020A
 	wmCloseGUI            = 0x0010
@@ -58,6 +62,14 @@ const (
 	enKillFocus           = 0x0200
 	bnClicked             = 0x0000
 	htCaption             = 2
+	htLeft                = 10
+	htRight               = 11
+	htTop                 = 12
+	htTopLeft             = 13
+	htTopRight            = 14
+	htBottom              = 15
+	htBottomLeft          = 16
+	htBottomRight         = 17
 	tbButtonStructSize    = 0x041E
 	tbAddButtons          = 0x0414
 	tbAddStringW          = 0x044D
@@ -98,11 +110,14 @@ const (
 	contentTop            = headerHeight + navBarHeight
 	bottomBarHeight       = 48
 	windowWidth           = 760
+	minWindowWidth        = 760
+	minWindowHeight       = contentTop + leftPaneHeight + bottomBarHeight
+	resizeGripSize        = 8
 	leftPaneWidth         = 445
 	leftPaneHeight        = 560
 	rightPaneWidth        = windowWidth - leftPaneWidth
 	settingsPaneWidth     = rightPaneWidth
-	settingsPaneHeight    = leftPaneHeight
+	settingsPaneHeight    = 700
 	clrMainBg             = 0x00311c0b
 	clrHeaderBg           = 0x004d2c08
 	clrNavBg              = 0x0024150b
@@ -576,6 +591,19 @@ func runNativeGUI(initialTab string) error {
 			return paintMainWindow(hwnd, &app)
 		case wmEraseBkgnd:
 			return 1
+		case wmNCCalcSize:
+			return 0
+		case wmNCPaint:
+			return 0
+		case wmGetMinMaxInfo:
+			applyMinMaxInfo(lParam)
+			return 0
+		case wmSize:
+			layoutMainWindow(&app)
+			if invalidateRectProc != nil {
+				invalidateRectProc.Call(hwnd, 0, 1)
+			}
+			return 0
 		case wmCreateGUI:
 			app.hwnd = hwnd
 			buttonClass, _ := syscall.UTF16PtrFromString("BUTTON")
@@ -796,8 +824,16 @@ func runNativeGUI(initialTab string) error {
 		case wmLButtonDown:
 			x := int32(lParam & 0xffff)
 			y := int32((lParam >> 16) & 0xffff)
-			if y >= 0 && y < headerHeight {
 			var rc winRect
+			if getClientRectProc != nil {
+				getClientRectProc.Call(hwnd, uintptr(unsafe.Pointer(&rc)))
+			}
+			if ht := resizeHitTest(x, y, rc); ht != 0 {
+				releaseCapture.Call()
+				sendMessageProc.Call(hwnd, wmNCLButtonDown, uintptr(ht), 0)
+				return 0
+			}
+			if y >= 0 && y < headerHeight {
 				width := int32(windowWidth)
 				if getClientRectProc != nil {
 					getClientRectProc.Call(hwnd, uintptr(unsafe.Pointer(&rc)))
@@ -950,7 +986,7 @@ func runNativeGUI(initialTab string) error {
 	}
 
 	guiLog("stage=create window")
-	app.hwnd, _, _ = createWindowEx.Call(0, uintptr(unsafe.Pointer(className)), uintptr(unsafe.Pointer(title)), wsPopup|wsVisible|wsClipChildren, 200, 120, windowWidth, contentTop+leftPaneHeight+bottomBarHeight, 0, 0, hInstance, 0)
+	app.hwnd, _, _ = createWindowEx.Call(0, uintptr(unsafe.Pointer(className)), uintptr(unsafe.Pointer(title)), wsPopup|wsSizeBox|wsVisible|wsClipChildren, 200, 120, windowWidth, contentTop+leftPaneHeight+bottomBarHeight, 0, 0, hInstance, 0)
 	if app.hwnd == 0 {
 		guiLog("stage=create window failed")
 		return fmt.Errorf("create window failed")
@@ -1611,33 +1647,43 @@ func resizeGUIForJoinContent(app *guiApp, contentHeight int) {
 	if contentHeight < leftPaneHeight {
 		contentHeight = leftPaneHeight
 	}
+	if w, h, ok := clientSize(app.hwnd); ok {
+		if h > contentTop+contentHeight+bottomBarHeight {
+			contentHeight = h - contentTop - bottomBarHeight
+		}
+		if w < minWindowWidth {
+			w = minWindowWidth
+		}
+		resizeFlags := hwndNoMove | hwndNoZOrder | hwndNoActivate
+		windowHeight := contentTop + contentHeight + bottomBarHeight
+		setWindowPosProc.Call(app.hwnd, 0, 0, 0, uintptr(w), uintptr(windowHeight), resizeFlags)
+		layoutMainWindow(app)
+		return
+	}
 	resizeFlags := hwndNoMove | hwndNoZOrder | hwndNoActivate
 	windowHeight := contentTop + contentHeight + bottomBarHeight
 	setWindowPosProc.Call(app.hwnd, 0, 0, 0, windowWidth, uintptr(windowHeight), resizeFlags)
-	for _, item := range []struct {
+	layoutMainWindow(app)
-		hwnd  uintptr
-		width int
-	}{
-		{app.leftHwnd, leftPaneWidth},
-		{app.rightHwnd, rightPaneWidth},
-		{app.settingsPaneHwnd, settingsPaneWidth},
-	} {
-		if item.hwnd != 0 {
-			setWindowPosProc.Call(item.hwnd, 0, 0, 0, uintptr(item.width), uintptr(contentHeight), resizeFlags)
-		}
-	}
 }
 
 func resizeGUIForSettings(app *guiApp) {
 	if app == nil || setWindowPosProc == nil || app.hwnd == 0 {
 		return
 	}
-	resizeFlags := hwndNoMove | hwndNoZOrder | hwndNoActivate
+	contentHeight := settingsPaneHeight
-	windowHeight := contentTop + leftPaneHeight + bottomBarHeight
+	width := windowWidth
-	setWindowPosProc.Call(app.hwnd, 0, 0, 0, windowWidth, uintptr(windowHeight), resizeFlags)
+	if w, h, ok := clientSize(app.hwnd); ok {
-	if app.settingsPaneHwnd != 0 {
+		if w > width {
-		setWindowPosProc.Call(app.settingsPaneHwnd, 0, 0, uintptr(contentTop), windowWidth, uintptr(leftPaneHeight), resizeFlags)
+			width = w
 		}
+		if h > contentTop+contentHeight+bottomBarHeight {
+			contentHeight = h - contentTop - bottomBarHeight
+		}
+	}
+	resizeFlags := hwndNoMove | hwndNoZOrder | hwndNoActivate
+	windowHeight := contentTop + contentHeight + bottomBarHeight
+	setWindowPosProc.Call(app.hwnd, 0, 0, 0, uintptr(width), uintptr(windowHeight), resizeFlags)
+	layoutMainWindow(app)
 }
 
 type winRect struct {
@@ -1647,6 +1693,110 @@ type winRect struct {
 	Bottom int32
 }
 
+type winPoint struct {
+	X int32
+	Y int32
+}
+
+type minMaxInfo struct {
+	Reserved     winPoint
+	MaxSize      winPoint
+	MaxPosition  winPoint
+	MinTrackSize winPoint
+	MaxTrackSize winPoint
+}
+
+func applyMinMaxInfo(lParam uintptr) {
+	if lParam == 0 {
+		return
+	}
+	info := (*minMaxInfo)(unsafe.Pointer(lParam))
+	info.MinTrackSize.X = minWindowWidth
+	info.MinTrackSize.Y = minWindowHeight
+}
+
+func clientSize(hwnd uintptr) (int, int, bool) {
+	if hwnd == 0 || getClientRectProc == nil {
+		return 0, 0, false
+	}
+	var rc winRect
+	getClientRectProc.Call(hwnd, uintptr(unsafe.Pointer(&rc)))
+	w := int(rc.Right - rc.Left)
+	h := int(rc.Bottom - rc.Top)
+	if w <= 0 || h <= 0 {
+		return 0, 0, false
+	}
+	return w, h, true
+}
+
+func resizeHitTest(x, y int32, rc winRect) int32 {
+	if rc.Right <= 0 || rc.Bottom <= 0 {
+		return 0
+	}
+	onLeft := x >= 0 && x < resizeGripSize
+	onRight := x <= rc.Right && x > rc.Right-resizeGripSize
+	onTop := y >= 0 && y < resizeGripSize
+	onBottom := y <= rc.Bottom && y > rc.Bottom-resizeGripSize
+	switch {
+	case onTop && onLeft:
+		return htTopLeft
+	case onTop && onRight:
+		return htTopRight
+	case onBottom && onLeft:
+		return htBottomLeft
+	case onBottom && onRight:
+		return htBottomRight
+	case onLeft:
+		return htLeft
+	case onRight:
+		return htRight
+	case onTop:
+		return htTop
+	case onBottom:
+		return htBottom
+	default:
+		return 0
+	}
+}
+
+func layoutMainWindow(app *guiApp) {
+	if app == nil || app.hwnd == 0 || setWindowPosProc == nil {
+		return
+	}
+	clientW, clientH, ok := clientSize(app.hwnd)
+	if !ok {
+		return
+	}
+	contentH := clientH - contentTop - bottomBarHeight
+	if contentH < 1 {
+		contentH = 1
+	}
+	leftW := leftPaneWidth
+	if clientW < leftW+160 {
+		leftW = clientW / 2
+		if leftW < 240 {
+			leftW = 240
+		}
+	}
+	rightW := clientW - leftW
+	if rightW < 1 {
+		rightW = 1
+	}
+	resizeFlags := hwndNoZOrder | hwndNoActivate
+	if app.navBarHwnd != 0 {
+		setWindowPosProc.Call(app.navBarHwnd, 0, 0, uintptr(headerHeight), uintptr(clientW), uintptr(navBarHeight), resizeFlags)
+	}
+	if app.leftHwnd != 0 {
+		setWindowPosProc.Call(app.leftHwnd, 0, 0, uintptr(contentTop), uintptr(leftW), uintptr(contentH), resizeFlags)
+	}
+	if app.rightHwnd != 0 {
+		setWindowPosProc.Call(app.rightHwnd, 0, uintptr(leftW), uintptr(contentTop), uintptr(rightW), uintptr(contentH), resizeFlags)
+	}
+	if app.settingsPaneHwnd != 0 {
+		setWindowPosProc.Call(app.settingsPaneHwnd, 0, 0, uintptr(contentTop), uintptr(clientW), uintptr(contentH), resizeFlags)
+	}
+}
+
 type paintStruct struct {
 	Hdc         uintptr
 	FErase      int32
@@ -1871,13 +2021,13 @@ func paintSettingsPane(hwnd uintptr, app *guiApp) uintptr {
 	drawSettingsRefreshControl(hdc, app)
 	drawPaneText(hdc, 24, 314, "文字サイズ", app.hFont, clrMutedText)
 	drawSettingsFontControl(hdc, app)
-	drawPaneText(hdc, 24, 390, "履歴 Export", app.hFont, clrMutedText)
+	drawPaneText(hdc, 24, 400, "履歴 Export", app.hFont, clrMutedText)
-	drawPaneText(hdc, 24, 412, "出力先フォルダ", app.hFont, clrMutedText)
+	drawPaneText(hdc, 24, 430, "出力先フォルダ", app.hFont, clrMutedText)
 	drawSettingsWideButton(hdc, settingsHistoryExportTimeRect(), "Time", onOffBool(app.historyExportIncludeTime), app.hFont, app.historyExportIncludeTime)
 	drawSettingsWideButton(hdc, settingsHistoryExportWorldRect(), "World", onOffBool(app.historyExportIncludeWorld), app.hFont, app.historyExportIncludeWorld)
 	drawSettingsWideButton(hdc, settingsHistoryExportJoinLeaveRect(), "Join/Leave", onOffBool(app.historyExportIncludeJoinLeave), app.hFont, app.historyExportIncludeJoinLeave)
 	drawSettingsWideButton(hdc, settingsHistoryExportCustomToggleRect(), "Custom", onOffBool(app.historyExportCustomEnabled), app.hFont, app.historyExportCustomEnabled)
-	drawPaneText(hdc, 24, 532, "Custom 条件", app.hFont, clrMutedText)
+	drawPaneText(hdc, 24, 618, "Custom 条件", app.hFont, clrMutedText)
 	return 0
 }
 
@@ -1918,35 +2068,35 @@ func settingsFontUpRect() winRect {
 }
 
 func settingsHistoryExportDirRect() winRect {
-	return winRect{Left: 24, Top: 436, Right: 636, Bottom: 460}
+	return winRect{Left: 24, Top: 458, Right: 636, Bottom: 490}
 }
 
 func settingsHistoryExportBrowseRect() winRect {
-	return winRect{Left: 644, Top: 436, Right: 736, Bottom: 460}
+	return winRect{Left: 644, Top: 458, Right: 736, Bottom: 490}
 }
 
 func settingsHistoryExportTimeRect() winRect {
-	return winRect{Left: 24, Top: 468, Right: 360, Bottom: 498}
+	return winRect{Left: 24, Top: 510, Right: 360, Bottom: 546}
 }
 
 func settingsHistoryExportWorldRect() winRect {
-	return winRect{Left: 376, Top: 468, Right: 736, Bottom: 498}
+	return winRect{Left: 376, Top: 510, Right: 736, Bottom: 546}
 }
 
 func settingsHistoryExportJoinLeaveRect() winRect {
-	return winRect{Left: 24, Top: 504, Right: 360, Bottom: 534}
+	return winRect{Left: 24, Top: 558, Right: 360, Bottom: 594}
 }
 
 func settingsHistoryExportCustomToggleRect() winRect {
-	return winRect{Left: 376, Top: 504, Right: 736, Bottom: 534}
+	return winRect{Left: 376, Top: 558, Right: 736, Bottom: 594}
 }
 
 func settingsHistoryExportCustomRect() winRect {
-	return winRect{Left: 24, Top: 552, Right: 636, Bottom: 574}
+	return winRect{Left: 24, Top: 646, Right: 636, Bottom: 678}
 }
 
 func settingsHistoryExportCustomSaveRect() winRect {
-	return winRect{Left: 644, Top: 552, Right: 736, Bottom: 574}
+	return winRect{Left: 644, Top: 646, Right: 736, Bottom: 678}
 }
 
 func handleSettingsPaneClick(app *guiApp, x, y int32, getWindowText, setWindowText *syscall.LazyProc) bool {
@@ -2946,7 +3096,7 @@ func eventRows(users []userState) []guiEventRow {
 }
 
 func joinLeaveRowsForCurrentWorld(app *guiApp) []guiEventRow {
-	events := historyEventsFromSnapshot()
+	events := historyEventsWithFallback()
 	if len(events) == 0 {
 		users, _ := currentUsersFromJoinLeave()
 		return eventRows(users)
@@ -3109,6 +3259,7 @@ type guiWorldVisitRecord struct {
 type guiWorldHistoryFile struct {
 	UpdatedAt string                `json:"updated_at"`
 	Visits    []guiWorldVisitRecord `json:"visits"`
+	Current   *guiWorldVisitRecord  `json:"current"`
 }
 
 func readWorldHistory() []guiWorldVisitRecord {
@@ -3134,6 +3285,9 @@ func readWorldHistory() []guiWorldVisitRecord {
 			return nil
 		}
 		visits = snap.Visits
+		if snap.Current != nil && !snap.Current.StartedAt.IsZero() {
+			visits = append(visits, *snap.Current)
+		}
 	}
 	out := dedupeWorldHistory(visits)
 	if info, err := os.Stat(p); err == nil {
@@ -3296,7 +3450,7 @@ func humanDurationLabel(started, ended time.Time, current bool) string {
 	}
 	d := ended.Sub(started)
 	if current {
-		return formatDurationShort(d) + " active"
+		return formatDurationShort(d)
 	}
 	return formatDurationShort(d)
 }

internal/app/world_history.go

@@ -25,6 +25,7 @@ type WorldVisit struct {
 type worldHistorySnapshot struct {
 	UpdatedAt time.Time    `json:"updated_at"`
 	Visits    []WorldVisit `json:"visits"`
+	Current   *WorldVisit  `json:"current,omitempty"`
 }
 
 type WorldHistoryTracker struct {
@@ -61,6 +62,10 @@ func (t *WorldHistoryTracker) load() error {
 		return err
 	}
 	t.visits = mergeWorldVisits(snap.Visits)
+	if snap.Current != nil && !snap.Current.StartedAt.IsZero() {
+		current := *snap.Current
+		t.current = &current
+	}
 	return nil
 }
 
@@ -188,6 +193,7 @@ func (t *WorldHistoryTracker) persistLocked() error {
 	return enc.Encode(worldHistorySnapshot{
 		UpdatedAt: time.Now(),
 		Visits:    mergeWorldVisits(t.visits),
+		Current:   t.current,
 	})
 }