[CmdletBinding()]
param(
    [Parameter(ValueFromRemainingArguments = $true)]
    [string[]]$Command
)

$msysRoot = if ($env:MSYS2_ROOT) { $env:MSYS2_ROOT } else { "C:\msys64" }
$bash = Join-Path $msysRoot "usr\bin\bash.exe"

if (-not (Test-Path -LiteralPath $bash)) {
    Write-Error "MSYS2 bash was not found at: $bash"
    exit 1
}

$env:MSYSTEM = "UCRT64"
$env:CHERE_INVOKING = "1"

if ($Command.Count -eq 0) {
    & $bash --login
} else {
    $cmdString = $Command -join " "
    & $bash -lc $cmdString
}

exit $LASTEXITCODE