<#
.SYNOPSIS
	Checks the BIOS status
.DESCRIPTION
	This PowerShell script queries the BIOS status and prints it.
.EXAMPLE
	PS> ./check-bios.ps1
	✅ BIOS model P62 v02.67, version HPQOEM - 5, S/N CZC1080B01 by HP
.LINK
	https://github.com/fleschutz/PowerShell
.NOTES
	Author: Markus Fleschutz | License: CC0
#>

try {
	if ($IsLinux) {
		$model = (sudo dmidecode -s system-product-name)
		if ("$model" -eq "") { exit 0 } # no information
		Write-Progress "Querying BIOS details..."
		$version = (sudo dmidecode -s bios-version)
		$releaseDate = (sudo dmidecode -s bios-release-date)
		$manufacturer = (sudo dmidecode -s system-manufacturer)
		Write-Progress -completed "Done."
	} else {
		$details = Get-CimInstance -ClassName Win32_BIOS
		$model = $details.Name.Trim()
		$version = $details.Version.Trim()
		$serial = $details.SerialNumber.Trim()
		$manufacturer = $details.Manufacturer.Trim()
	}
	if ($model -eq "To be filled by O.E.M.") { $model = "N/A" }
	if ($version -eq "To be filled by O.E.M.") { $version = "N/A" }
	if ("$releaseDate" -ne "") { $releaseDate = " of $releaseDate" }
	if ("$serial" -eq "") { $serial = "N/A" }
	if ($serial -eq "To be filled by O.E.M.") { $serial = "N/A" }
	Write-Host "✅ BIOS model $model, version $($version)$($releaseDate), S/N $serial by $manufacturer"
	exit 0 # success
} catch {
	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
	exit 1
}
