$f = "E:\GitHub\blog\bot\tray.ps1"
$s = [System.IO.File]::ReadAllText($f, [System.Text.Encoding]::UTF8)
# Find the MessageBox catch and replace it
$old = '    [System.Windows.Forms.MessageBox]::Show(' + [char]10 + '        "Node.js' + [char]0x672A + [char]0x5B89 + [char]0x88C5 + [char]0x6216 + [char]0x65E0 + [char]0x6CD5 + [char]0x542F + [char]0x52A8' + [char]0x3002 + '"`n`n$_",'
Write-Host "searching..."
$idx = $s.IndexOf("catch {`n    [System.Windows.Forms.MessageBox]")
if ($idx -lt 0) { $idx = $s.IndexOf("MessageBox") }
Write-Host "idx: $idx"
if ($idx -gt 0) {
    $before = $s.Substring(0, $idx)
    $afterMarker = "    exit 1`n}`n`n|notifyIcon"
    # find the closing } after the MessageBox catch
    $afterIdx = $idx + 200
    $remaining = $s.Substring($afterIdx)
    $closePos = $remaining.IndexOf("exit 1") + 7
    $after = $s.Substring($afterIdx + $closePos)
    $replacement = "} catch {`n    `$log = Join-Path `$BotDir `".tray-error.log`"`n    `"tray.ps1 failed: `$_`" | Out-File `$log -Encoding UTF8`n    `$notifyIcon.Visible = `$false`n    exit 1`n}`n"
    $s = $before + $replacement + $after
    [System.IO.File]::WriteAllText($f, $s, [System.Text.UTF8Encoding]::new($true))
    Write-Host "PATCHED"
} else {
    Write-Host "NOT FOUND"
}