fix fourth core dump on export option

This commit is contained in:
2026-05-20 11:34:37 +02:00
parent 14d3ac2128
commit 6f285d6bd0
4 changed files with 199 additions and 226 deletions
Binary file not shown.
+37 -43
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@@ -3,9 +3,6 @@ using Spectre.Console.Rendering;
namespace HanaTui.Tui.Components;
/// <summary>
/// A timestamped log entry.
/// </summary>
public sealed class LogEntry
{
public DateTime Time { get; init; } = DateTime.Now;
@@ -16,14 +13,13 @@ public sealed class LogEntry
public enum LogLevel { Info, Sql, Done, Warn, Error }
/// <summary>
/// Maintains a bounded list of log entries and renders them as a
/// Spectre.Console IRenderable panel, showing the most recent N lines.
/// Thread-safe.
/// Thread-safe bounded log. Build() returns an IRenderable panel.
/// Dynamic content is rendered via Text() objects — never interpolated into markup strings.
/// </summary>
public sealed class LogPanel
{
private const int MaxEntries = 500;
private const int VisibleLines = 20; // shown inside the panel
private const int VisibleLines = 20;
private readonly List<LogEntry> _entries = new(MaxEntries);
private readonly object _lock = new();
@@ -31,19 +27,13 @@ public sealed class LogPanel
public void Add(string text)
{
var level = DetectLevel(text);
var entry = new LogEntry { Time = DateTime.Now, Text = text, Level = level };
lock (_lock)
{
if (_entries.Count >= MaxEntries)
_entries.RemoveAt(0);
_entries.Add(entry);
if (_entries.Count >= MaxEntries) _entries.RemoveAt(0);
_entries.Add(new LogEntry { Time = DateTime.Now, Text = text, Level = level });
}
}
/// <summary>
/// Returns a renderable panel showing the last N log lines.
/// </summary>
public IRenderable Build()
{
List<LogEntry> snapshot;
@@ -56,30 +46,37 @@ public sealed class LogPanel
var rows = new Grid();
rows.AddColumn(new GridColumn().NoWrap());
// Pad to VisibleLines so the panel doesn't resize each tick
var padCount = VisibleLines - snapshot.Count;
for (int i = 0; i < padCount; i++)
// Pad so the panel height stays stable
for (int i = 0; i < VisibleLines - snapshot.Count; i++)
rows.AddRow(new Text(""));
foreach (var entry in snapshot)
{
var timeStr = entry.Time.ToString("HH:mm:ss");
var (tagLabel, color) = entry.Level switch
var (tagLabel, tagColor, textColor) = entry.Level switch
{
LogLevel.Sql => ("SQL ", "blue"),
LogLevel.Done => ("DONE", "green"),
LogLevel.Warn => ("WARN", "yellow"),
LogLevel.Error => ("ERR ", "red"),
_ => ("INFO", "grey"),
LogLevel.Sql => ("SQL ", Color.Blue, Color.White),
LogLevel.Done => ("DONE", Color.Green, Color.White),
LogLevel.Warn => ("WARN", Color.Yellow, Color.White),
LogLevel.Error => ("ERR ", Color.Red, Color.White),
_ => ("INFO", Color.Grey, Color.Silver),
};
// Strip the leading [TAG] prefix from the raw text if present,
// since we re-render it with color. Then escape the remainder.
var rawText = StripKnownPrefix(entry.Text);
var safeText = Markup.Escape(rawText);
// Strip the [TAG] prefix the service already prepends — we re-render it with color
var bodyText = StripKnownPrefix(entry.Text);
rows.AddRow(new Markup(
$"[dim]{timeStr}[/] [{color}][[{tagLabel}]][/] {safeText}"));
// Compose the row from Text objects — zero markup parsing of dynamic content
var lineGrid = new Grid();
lineGrid.AddColumn(new GridColumn().NoWrap().Width(10)); // time
lineGrid.AddColumn(new GridColumn().NoWrap().Width(8)); // tag
lineGrid.AddColumn(new GridColumn().NoWrap()); // body
lineGrid.AddRow(
new Text(entry.Time.ToString("HH:mm:ss"), new Style(Color.Grey, decoration: Decoration.Dim)),
new Text($"[{tagLabel}]", new Style(tagColor)),
new Text(" " + bodyText, new Style(textColor))
);
rows.AddRow(lineGrid);
}
return new Panel(rows)
@@ -90,15 +87,14 @@ public sealed class LogPanel
};
}
// -------------------------------------------------------------------------
private static LogLevel DetectLevel(string text)
{
if (text.Contains("[SQL ]") || text.Contains("[SQL]"))
return LogLevel.Sql;
if (text.Contains("[DONE]"))
return LogLevel.Done;
if (text.Contains("[WARN]"))
return LogLevel.Warn;
if (text.Contains("[ERROR]") || text.Contains("[ERR]") || text.Contains("[ERR ]"))
if (text.Contains("[SQL ]") || text.Contains("[SQL]")) return LogLevel.Sql;
if (text.Contains("[DONE]")) return LogLevel.Done;
if (text.Contains("[WARN]")) return LogLevel.Warn;
if (text.Contains("[ERROR]") || text.Contains("[ERR ]") || text.Contains("[ERR]"))
return LogLevel.Error;
return LogLevel.Info;
}
@@ -108,11 +104,9 @@ public sealed class LogPanel
private static string StripKnownPrefix(string text)
{
foreach (var prefix in KnownPrefixes)
{
if (text.StartsWith(prefix, StringComparison.Ordinal))
return text[prefix.Length..];
}
foreach (var p in KnownPrefixes)
if (text.StartsWith(p, StringComparison.Ordinal))
return text[p.Length..];
return text;
}
}
+54 -47
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@@ -6,21 +6,18 @@ namespace HanaTui.Tui.Components;
/// <summary>
/// Renders the system stats panel (CPU bars, RAM bar, Swap bar, elapsed time).
/// Returns a Spectre.Console IRenderable so it can be embedded in a Live layout.
/// Uses only hardcoded markup tags — no dynamic data ever enters a markup string.
/// </summary>
public static class StatsPanel
{
/// <summary>
/// Build the stats panel renderable from the current snapshot.
/// </summary>
public static IRenderable Build(SystemSnapshot snap, TimeSpan elapsed, int panelWidth)
{
var barWidth = Math.Max(10, panelWidth - 16); // leave room for label + %
var barWidth = Math.Max(10, panelWidth - 16);
var grid = new Grid();
grid.AddColumn(new GridColumn().NoWrap());
// --- CPU Section ---
// --- CPU ---
grid.AddRow(new Markup("[bold yellow]CPU[/]"));
if (snap.CpuPercents.Length == 0)
@@ -34,23 +31,21 @@ public static class StatsPanel
var label = snap.CpuLabels.Length > i ? snap.CpuLabels[i] : $"cpu{i}";
var displayLabel = label == "cpu" ? "Total" : label.Replace("cpu", "Core");
var pct = snap.CpuPercents[i];
var bar = BuildBar(pct, barWidth, CpuColor(pct));
grid.AddRow(new Markup($" [dim]{displayLabel,-6}[/] {bar} [bold]{pct,5:F1}%[/]"));
// Build as Columns: label | bar | pct — no interpolation of dynamic values into markup
grid.AddRow(BuildBarRow(displayLabel, pct, barWidth));
}
}
grid.AddRow(new Text(""));
// --- Memory Section ---
// --- Memory ---
grid.AddRow(new Markup("[bold cyan]MEMORY[/]"));
if (snap.MemTotalKb > 0)
{
var memPct = snap.MemUsedPercent;
var memBar = BuildBar(memPct, barWidth, MemColor(memPct));
grid.AddRow(new Markup(
$" [dim]Used [/] {memBar} [bold]{memPct,5:F1}%[/]"));
grid.AddRow(new Markup(
$" [dim]{SystemSnapshot.FormatGb(snap.MemUsedKb)} / {SystemSnapshot.FormatGb(snap.MemTotalKb)}[/]"));
grid.AddRow(BuildBarRow("Used", memPct, barWidth));
grid.AddRow(new Text($" {SystemSnapshot.FormatGb(snap.MemUsedKb)} / {SystemSnapshot.FormatGb(snap.MemTotalKb)}",
new Style(Color.Grey)));
}
else
{
@@ -59,16 +54,14 @@ public static class StatsPanel
grid.AddRow(new Text(""));
// --- Swap Section ---
// --- Swap ---
grid.AddRow(new Markup("[bold cyan]SWAP[/]"));
if (snap.SwapTotalKb > 0)
{
var swapPct = snap.SwapUsedPercent;
var swapBar = BuildBar(swapPct, barWidth, MemColor(swapPct));
grid.AddRow(new Markup(
$" [dim]Used [/] {swapBar} [bold]{swapPct,5:F1}%[/]"));
grid.AddRow(new Markup(
$" [dim]{SystemSnapshot.FormatGb(snap.SwapUsedKb)} / {SystemSnapshot.FormatGb(snap.SwapTotalKb)}[/]"));
grid.AddRow(BuildBarRow("Used", swapPct, barWidth));
grid.AddRow(new Text($" {SystemSnapshot.FormatGb(snap.SwapUsedKb)} / {SystemSnapshot.FormatGb(snap.SwapTotalKb)}",
new Style(Color.Grey)));
}
else
{
@@ -78,17 +71,21 @@ public static class StatsPanel
grid.AddRow(new Text(""));
// --- Elapsed ---
grid.AddRow(new Markup(
$"[bold]Elapsed:[/] [yellow]{FormatElapsed(elapsed)}[/]"));
// Two separate renderables composed — no interpolation of elapsed into markup
var elapsedGrid = new Grid();
elapsedGrid.AddColumn(new GridColumn().NoWrap());
elapsedGrid.AddColumn(new GridColumn().NoWrap());
elapsedGrid.AddRow(
new Markup("[bold]Elapsed:[/]"),
new Text(" " + FormatElapsed(elapsed), new Style(Color.Yellow)));
grid.AddRow(elapsedGrid);
var panel = new Panel(grid)
return new Panel(grid)
{
Header = new PanelHeader("[bold] SYSTEM STATS [/]"),
Border = BoxBorder.Rounded,
Padding = new Padding(1, 0),
};
return panel;
}
// -------------------------------------------------------------------------
@@ -96,36 +93,46 @@ public static class StatsPanel
// -------------------------------------------------------------------------
/// <summary>
/// Renders a horizontal block bar of the given width.
/// e.g. [████████░░░░]
/// Result is a markup string safe for embedding inside a larger Markup call.
/// Builds a single bar row as a Grid with three columns:
/// label (dim) | bar (block chars, plain Text with color) | pct (bold)
/// Nothing here goes through markup parsing with dynamic content.
/// </summary>
private static string BuildBar(double percent, int width, string color)
private static IRenderable BuildBarRow(string label, double pct, int barWidth)
{
var filled = (int)Math.Round(percent / 100.0 * width);
filled = Math.Clamp(filled, 0, width);
var empty = width - filled;
var filled = (int)Math.Round(pct / 100.0 * barWidth);
filled = Math.Clamp(filled, 0, barWidth);
var empty = barWidth - filled;
// \u2588 = █ \u2591 = ░
// [[ and ]] are Spectre escape sequences for literal [ and ]
var filledColor = CpuColor(pct);
var filledStr = new string('\u2588', filled);
var emptyStr = new string('\u2591', empty);
return $"[[[{color}]{filledStr}[/][dim]{emptyStr}[/]]]";
var row = new Grid();
row.AddColumn(new GridColumn().NoWrap().Width(9)); // label
row.AddColumn(new GridColumn().NoWrap()); // bar chars
row.AddColumn(new GridColumn().NoWrap().Width(7)); // pct
row.AddRow(
new Text($" {label,-5}", new Style(Color.Grey, decoration: Decoration.Dim)),
// Bar: colored filled + dim empty, wrapped in plain Text objects side by side
new Columns(
new Text("[", new Style(Color.Grey)),
new Text(filledStr, new Style(filledColor)),
new Text(emptyStr, new Style(Color.Grey, decoration: Decoration.Dim)),
new Text("]", new Style(Color.Grey))
),
new Text($" {pct,5:F1}%", new Style(Color.White, decoration: Decoration.Bold))
);
return row;
}
private static string CpuColor(double pct) => pct switch
private static Color CpuColor(double pct) => pct switch
{
> 90 => "red",
> 70 => "yellow",
> 40 => "green",
_ => "blue",
};
private static string MemColor(double pct) => pct switch
{
> 90 => "red",
> 70 => "yellow",
_ => "cyan",
> 90 => Color.Red,
> 70 => Color.Yellow,
> 40 => Color.Green,
_ => Color.Blue,
};
private static string FormatElapsed(TimeSpan t)
+96 -124
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@@ -10,14 +10,8 @@ namespace HanaTui.Tui;
/// Left: System stats (CPU, RAM, Swap, elapsed)
/// Right: Streaming operation log
///
/// Abort behavior:
/// First Q -> warning shown in log
/// Second Q (within 3s) -> sends cancellation (SIGTERM -> wait 5s -> SIGKILL)
///
/// Post-completion:
/// Stats freeze, log stays.
/// "Returning in 10s... [any key to stay]" countdown.
/// If key pressed: stays until Enter/Esc.
/// Abort: first Q warns, second Q within 3s sends SIGTERM then SIGKILL.
/// Post-completion: 10s countdown, any key cancels and holds; Enter/Esc returns.
/// </summary>
public static class TaskRunnerScreen
{
@@ -37,13 +31,9 @@ public static class TaskRunnerScreen
var operationDone = false;
var operationSuccess = false;
DateTime? firstQTime = null;
// Abort state machine
DateTime? firstQPressTime = null;
// -----------------------------------------------------------------------
// Key listener task — runs concurrently with the Live render loop
// -----------------------------------------------------------------------
// Key listener
var keyTask = Task.Run(async () =>
{
while (!operationDone)
@@ -51,25 +41,24 @@ public static class TaskRunnerScreen
if (Console.KeyAvailable)
{
var key = Console.ReadKey(intercept: true);
if (key.Key == ConsoleKey.Q || key.KeyChar == 'q' || key.KeyChar == 'Q')
if (key.Key == ConsoleKey.Q || key.KeyChar is 'q' or 'Q')
{
if (cts.IsCancellationRequested) break; // already cancelled
if (cts.IsCancellationRequested) break;
if (firstQPressTime is null)
if (firstQTime is null)
{
firstQPressTime = DateTime.Now;
logPanel.Add("[WARN] Press Q again within 3 seconds to abort the operation.");
firstQTime = DateTime.Now;
logPanel.Add("[WARN] Press Q again within 3 seconds to abort.");
}
else if ((DateTime.Now - firstQPressTime.Value).TotalSeconds <= AbortWindowSeconds)
else if ((DateTime.Now - firstQTime.Value).TotalSeconds <= AbortWindowSeconds)
{
logPanel.Add("[WARN] Aborting operation...");
await cts.CancelAsync();
}
else
{
// Window expired, treat as first press again
firstQPressTime = DateTime.Now;
logPanel.Add("[WARN] Press Q again within 3 seconds to abort the operation.");
firstQTime = DateTime.Now;
logPanel.Add("[WARN] Press Q again within 3 seconds to abort.");
}
}
}
@@ -77,16 +66,12 @@ public static class TaskRunnerScreen
}
}, CancellationToken.None);
// -----------------------------------------------------------------------
// Main operation task
// -----------------------------------------------------------------------
// Operation task
var operationTask = Task.Run(async () =>
{
try
{
operationSuccess = await operation(
line => logPanel.Add(line),
cts.Token);
operationSuccess = await operation(line => logPanel.Add(line), cts.Token);
}
catch (Exception ex)
{
@@ -99,93 +84,77 @@ public static class TaskRunnerScreen
}
}, CancellationToken.None);
// -----------------------------------------------------------------------
// Live render loop
// -----------------------------------------------------------------------
await AnsiConsole.Live(BuildLayout(logPanel, stats, startTime, "[yellow]Running...[/]"))
await AnsiConsole.Live(BuildLayout(operationTitle, logPanel, stats, startTime, RunState.Running))
.AutoClear(false)
.StartAsync(async ctx =>
{
while (!operationDone)
{
var elapsed = DateTime.Now - startTime;
ctx.UpdateTarget(
BuildLayout(logPanel, stats, startTime, "[yellow]Running...[/]"));
ctx.UpdateTarget(BuildLayout(operationTitle, logPanel, stats, startTime, RunState.Running));
await Task.Delay(800, CancellationToken.None);
}
// Final render with result
var elapsed2 = DateTime.Now - startTime;
var statusMsg = cts.IsCancellationRequested
? "[red]Aborted[/]"
: operationSuccess
? "[green]Completed successfully[/]"
: "[red]Failed[/]";
var elapsed = DateTime.Now - startTime;
RunState finalState;
if (cts.IsCancellationRequested)
logPanel.Add($"[WARN] Operation aborted after {FormatElapsed(elapsed2)}.");
{
finalState = RunState.Aborted;
logPanel.Add($"[WARN] Operation aborted after {FormatElapsed(elapsed)}.");
}
else if (operationSuccess)
logPanel.Add($"[DONE] Operation completed in {FormatElapsed(elapsed2)}.");
{
finalState = RunState.Success;
logPanel.Add($"[DONE] Operation completed in {FormatElapsed(elapsed)}.");
}
else
logPanel.Add($"[ERR ] Operation failed after {FormatElapsed(elapsed2)}.");
{
finalState = RunState.Failed;
logPanel.Add($"[ERR ] Operation failed after {FormatElapsed(elapsed)}.");
}
ctx.UpdateTarget(BuildLayout(logPanel, stats, startTime, statusMsg));
ctx.UpdateTarget(BuildLayout(operationTitle, logPanel, stats, startTime, finalState));
});
// Clean up
stats.Dispose();
await operationTask; // ensure it's fully done
await operationTask;
operationDone = true;
await keyTask;
// -----------------------------------------------------------------------
// Post-completion: countdown or hold
// -----------------------------------------------------------------------
await PostCompletionWaitAsync(logPanel, stats, startTime, operationSuccess, cts.IsCancellationRequested);
await PostCompletionWaitAsync(operationTitle, logPanel, stats, startTime,
cts.IsCancellationRequested ? RunState.Aborted :
operationSuccess ? RunState.Success : RunState.Failed);
}
// -----------------------------------------------------------------------
// Post-completion hold screen
// -----------------------------------------------------------------------
private enum RunState { Running, Success, Failed, Aborted }
private static async Task PostCompletionWaitAsync(
LogPanel logPanel,
SystemStats stats,
DateTime startTime,
bool success,
bool aborted)
string title, LogPanel logPanel, SystemStats stats, DateTime startTime, RunState state)
{
var statusMsg = aborted ? "[red]Aborted[/]" :
success ? "[green]Completed[/]" : "[red]Failed[/]";
var countdownCancelled = false;
var returnNow = false;
var staying = false;
var startCountdown = DateTime.Now;
// Start 10-second countdown in background
var countdownTask = Task.Run(async () =>
{
for (int i = CountdownSeconds; i > 0 && !countdownCancelled; i--)
{
await Task.Delay(1000, CancellationToken.None);
}
if (!countdownCancelled)
returnNow = true;
if (!countdownCancelled) returnNow = true;
}, CancellationToken.None);
await AnsiConsole.Live(BuildLayout(logPanel, stats, startTime, statusMsg))
await AnsiConsole.Live(BuildLayout(title, logPanel, stats, startTime, state))
.AutoClear(false)
.StartAsync(async ctx =>
{
var secondsLeft = CountdownSeconds;
var staying = false;
while (!returnNow)
{
if (Console.KeyAvailable)
{
var key = Console.ReadKey(intercept: true);
countdownCancelled = true;
staying = true;
if (key.Key is ConsoleKey.Enter or ConsoleKey.Escape)
{
@@ -193,27 +162,26 @@ public static class TaskRunnerScreen
break;
}
// Any other key: cancel countdown, show "hold" message
logPanel.Add("[INFO] Countdown cancelled. Press [Enter] or [Esc] to return to menu.");
}
// Update footer countdown
var elapsed = DateTime.Now - startTime;
string footer;
if (!staying)
{
secondsLeft = CountdownSeconds -
(int)(DateTime.Now - startTime).TotalSeconds; // approximate
// recompute properly
footer = $"[dim]Returning to menu in {Math.Max(0, secondsLeft)}s... " +
"[any key to stay][/]";
staying = true;
logPanel.Add("[INFO] Countdown cancelled. Press Enter or Esc to return to menu.");
}
}
string footerText;
if (!staying)
{
var secsLeft = Math.Max(0, CountdownSeconds -
(int)(DateTime.Now - startCountdown).TotalSeconds);
footerText = $"Returning to menu in {secsLeft}s... (any key to stay)";
}
else
{
footer = "[dim]Press [Enter] or [Esc] to return to menu.[/]";
footerText = "Press Enter or Esc to return to menu.";
}
ctx.UpdateTarget(BuildLayoutWithFooter(logPanel, stats, startTime, statusMsg, footer));
ctx.UpdateTarget(BuildLayout(title, logPanel, stats, startTime, state, footerText));
await Task.Delay(200, CancellationToken.None);
}
});
@@ -222,74 +190,78 @@ public static class TaskRunnerScreen
}
// -----------------------------------------------------------------------
// Layout builders
// Layout
// -----------------------------------------------------------------------
private static IRenderable BuildLayout(
string title,
LogPanel logPanel,
SystemStats stats,
DateTime startTime,
string statusMsg)
{
return BuildLayoutWithFooter(logPanel, stats, startTime, statusMsg, footer: null);
}
private static IRenderable BuildLayoutWithFooter(
LogPanel logPanel,
SystemStats stats,
DateTime startTime,
string statusMsg,
string? footer)
RunState state,
string? footerText = null)
{
var elapsed = DateTime.Now - startTime;
var snap = stats.CurrentSnapshot;
// Stats panel (left) — fixed width ~36 chars
var statsPanelWidth = 36;
const int statsPanelWidth = 40;
var statsRenderable = StatsPanel.Build(snap, elapsed, statsPanelWidth - 4);
// Log panel (right) — fills remaining space
var logRenderable = logPanel.Build();
var layout = new Layout("root")
.SplitColumns(
var layout = new Layout("root").SplitColumns(
new Layout("stats").Size(statsPanelWidth),
new Layout("log"));
layout["stats"].Update(statsRenderable);
layout["log"].Update(logRenderable);
// Wrap in a grid so we can add a footer row
var outerGrid = new Grid();
outerGrid.AddColumn(new GridColumn());
// Title row
outerGrid.AddRow(new Markup(
$"[bold dodgerblue1] Running:[/] [yellow]{Markup.Escape(ExtractTitle(statusMsg))}[/] " +
$"Status: {statusMsg}"));
// Title row — state label uses Text objects, not markup interpolation
var titleGrid = new Grid();
titleGrid.AddColumn(new GridColumn().NoWrap());
titleGrid.AddColumn(new GridColumn().NoWrap());
titleGrid.AddColumn(new GridColumn().NoWrap());
titleGrid.AddColumn(new GridColumn().NoWrap());
titleGrid.AddRow(
new Markup("[bold dodgerblue1] Operation:[/]"),
new Text(" " + title, new Style(Color.Yellow)),
new Markup(" [bold dodgerblue1]Status:[/]"),
StateLabel(state)
);
outerGrid.AddRow(titleGrid);
outerGrid.AddRow(layout);
if (footer is not null)
outerGrid.AddRow(new Markup($"\n {footer} [dim][[Q]] Abort[/]"));
else
outerGrid.AddRow(new Markup("\n [dim][[Q]] Press once to warn, twice to abort[/]"));
// Footer row — plain Text, no markup parsing of dynamic content
var footerGrid = new Grid();
footerGrid.AddColumn(new GridColumn().NoWrap());
footerGrid.AddColumn(new GridColumn().NoWrap());
var footerLeft = footerText is not null
? new Text(" " + footerText, new Style(Color.Grey, decoration: Decoration.Dim))
: (IRenderable)new Text(" Press Q to abort (twice within 3s)", new Style(Color.Grey, decoration: Decoration.Dim));
var footerRight = new Text(" [Q] abort", new Style(Color.Grey, decoration: Decoration.Dim));
footerGrid.AddRow(footerLeft, footerRight);
outerGrid.AddRow(footerGrid);
return outerGrid;
}
private static string ExtractTitle(string statusMsg)
private static IRenderable StateLabel(RunState state) => state switch
{
// statusMsg is markup like "[yellow]Running...[/]" — we just return a static title
return "HANA Operation";
}
RunState.Running => new Markup(" [yellow]Running...[/]"),
RunState.Success => new Markup(" [green]Completed[/]"),
RunState.Failed => new Markup(" [red]Failed[/]"),
RunState.Aborted => new Markup(" [red]Aborted[/]"),
_ => new Text(""),
};
private static string FormatElapsed(TimeSpan t)
{
if (t.TotalHours >= 1)
return $"{(int)t.TotalHours}h {t.Minutes:D2}m {t.Seconds:D2}s";
if (t.TotalMinutes >= 1)
return $"{t.Minutes}m {t.Seconds:D2}s";
if (t.TotalHours >= 1) return $"{(int)t.TotalHours}h {t.Minutes:D2}m {t.Seconds:D2}s";
if (t.TotalMinutes >= 1) return $"{t.Minutes}m {t.Seconds:D2}s";
return $"{t.Seconds}s";
}
}