my oh-my-posh PowerShell style

Polygnome.psm1

# My PowerShell style, as mashup between PowerLinePlus, Operator and Honukai
#requires -Version 2 -Modules posh-git

function Write-Theme {
	param(
		[bool]
		$lastCommandFailed,
		[string]
		$with
	)
	$lastColor = $sl.Colors.PromptBackgroundColor
	$authorityStatus = ((Invoke-CimMethod -InputObject $(Get-CimInstance Win32_Process -Filter "Handle=$PID") -MethodName GetOwner).User) -eq 'SYSTEM'

	# identify background colors for administrative rights
	# declare the colors
	$rootBackground = [ConsoleColor]::Magenta
	$rootForeground = [ConsoleColor]::White
	$reguserBackground = [ConsoleColor]::Blue
	$reguserForeground = [ConsoleColor]::White
	$authorityForeground = [ConsoleColor]::White
	$authorityBackground = [ConsoleColor]::Red
	# make it work
	If ($authorityStatus) {
		$promptTagBackground = $authorityBackground
		$promptTagForeground = $authorityForeground
	}
	else {
		If (Test-Administrator) {
			$promptTagBackground = $rootBackground
			$rootForeground = $rootForeground
		}
		else {
			$promptTagBackground = $reguserBackground
			$promptTagForeground = $reguserForeground
		}
	}

	$prompt = Write-Prompt -Object $sl.PromptSymbols.StartSymbol -ForegroundColor $sl.Colors.SessionInfoForegroundColor -BackgroundColor $sl.Colors.SessionInfoBackgroundColor

	$timeStamp = Get-Date -Format T
	$timestamp = "$timeStamp"

	$prompt += Write-Prompt "${timeStamp}" -ForegroundColor $sl.Colors.TimeForegroundColor -BackgroundColor $sl.Colors.TimeBackgroundColor
	$prompt += Write-Prompt -Object " $($sl.PromptSymbols.ClockSymbol)" -ForegroundColor $sl.Colors.TimeForegroundColor -BackgroundColor $sl.Colors.TimeBackgroundColor
	$prompt += Write-Prompt -Object "$($sl.PromptSymbols.SegmentForwardSymbol)" -ForegroundColor $sl.Colors.TimeBackgroundColor -BackgroundColor $sl.Colors.SessionInfoBackgroundColor

	$user = $sl.CurrentUser
	$computer = [System.Environment]::MachineName
	if ($authorityStatus) {
		$prompt += Write-Prompt -Object " $computer" -ForegroundColor $sl.Colors.SessionInfoForegroundColor -BackgroundColor $sl.Colors.SessionInfoBackgroundColor
	}
	else {
	if (Test-NotDefaultUser($user)) {
		$prompt += Write-Prompt -Object " $user@$computer" -ForegroundColor $sl.Colors.SessionInfoForegroundColor -BackgroundColor $sl.Colors.SessionInfoBackgroundColor
		}
	}
	
	$pathSymbol = if ($pwd.Path -eq $HOME) { $sl.PromptSymbols.PathHomeSymbol } else { $sl.PromptSymbols.PathSymbol }
	$path = $pathSymbol + " " + (Get-FullPath -dir $pwd)
	
	if (Test-VirtualEnv) {
		$prompt += Write-Prompt -Object "$($sl.PromptSymbols.SegmentForwardSymbol) " -ForegroundColor $sl.Colors.SessionInfoBackgroundColor -BackgroundColor $sl.Colors.VirtualEnvBackgroundColor
		$prompt += Write-Prompt -Object "$($sl.PromptSymbols.VirtualEnvSymbol) $(Get-VirtualEnvName) " -ForegroundColor $sl.Colors.VirtualEnvForegroundColor -BackgroundColor $sl.Colors.VirtualEnvBackgroundColor
		$prompt += Write-Prompt -Object "$($sl.PromptSymbols.SegmentForwardSymbol) " -ForegroundColor $sl.Colors.VirtualEnvBackgroundColor -BackgroundColor $sl.Colors.PromptBackgroundColor
	}
	else {
		$prompt += Write-Prompt -Object "$($sl.PromptSymbols.SegmentForwardSymbol) " -ForegroundColor $sl.Colors.SessionInfoBackgroundColor -BackgroundColor $sl.Colors.PromptBackgroundColor
	}
	
	# Writes the drive portion
	$prompt += Write-Prompt -Object "$path " -ForegroundColor $sl.Colors.PromptForegroundColor -BackgroundColor $sl.Colors.PromptBackgroundColor
	
	$status = Get-VCSStatus
	if ($status) {
		$themeInfo = Get-VcsInfo -status ($status)
		$lastColor = $themeInfo.BackgroundColor
		$prompt += Write-Prompt -Object $sl.PromptSymbols.SegmentForwardSymbol -ForegroundColor $sl.Colors.PromptBackgroundColor -BackgroundColor $lastColor
		$prompt += Write-Prompt -Object " $($themeInfo.VcInfo) " -BackgroundColor $lastColor -ForegroundColor $sl.Colors.GitForegroundColor
	}
	
	if ($with) {
		$prompt += Write-Prompt -Object $sl.PromptSymbols.SegmentForwardSymbol -ForegroundColor $lastColor -BackgroundColor $sl.Colors.WithBackgroundColor
		$prompt += Write-Prompt -Object " $($with.ToUpper()) " -BackgroundColor $sl.Colors.WithBackgroundColor -ForegroundColor $sl.Colors.WithForegroundColor
		$lastColor = $sl.Colors.WithBackgroundColor
	}
	
	If ($lastCommandFailed) {
		$errsign = "ERROR".Replace('\', ' ' + [char]::ConvertFromUtf32(0xE0B1) + ' ') + ' '
			$prompt += Write-Prompt -Object "$($sl.PromptSymbols.SegmentForwardSymbol) " -ForegroundColor $lastColor -BackgroundColor $errBackground
		$prompt += Write-Prompt -Object $errsign -ForegroundColor $errForeground -BackgroundColor $errBackground
		$lastColor = $errBackground
		$promptTagBackgroundStatusErrCheck = $errBackground
	}
	else {
		$promptTagBackgroundStatusErrCheck = $promptTagBackground
	}
	If ($authorityStatus) {
		$authoritysign = "@".Replace('\', ' ' + [char]::ConvertFromUtf32(0xE0B1) + ' ') + ' '
			$prompt += Write-Prompt -Object "$($sl.PromptSymbols.SegmentForwardSymbol) " -ForegroundColor $lastColor -BackgroundColor $promptTagBackgroundStatusErrCheck
			$prompt += Write-Prompt -Object $authoritysign -ForegroundColor $promptTagForeground -BackgroundColor $promptTagBackgroundStatusErrCheck
			$prompt += Write-Prompt -Object $sl.PromptSymbols.SegmentForwardSymbol -ForegroundColor $promptTagBackgroundStatusErrCheck -BackgroundColor $sl.Colors.SessionInfoForegroundColor
		}
	else {
		If (Test-Administrator) {
			$rootsign = "#".Replace('\', ' ' + [char]::ConvertFromUtf32(0xE0B1) + ' ') + ' '
			$prompt += Write-Prompt -Object "$($sl.PromptSymbols.SegmentForwardSymbol) " -ForegroundColor $lastColor -BackgroundColor $promptTagBackgroundStatusErrCheck
			$prompt += Write-Prompt -Object $rootsign -ForegroundColor $promptTagForeground -BackgroundColor $promptTagBackgroundStatusErrCheck
			$prompt += Write-Prompt -Object $sl.PromptSymbols.SegmentForwardSymbol -ForegroundColor $promptTagBackgroundStatusErrCheck -BackgroundColor $sl.Colors.SessionInfoForegroundColor
		}
		else {
			$norootsign = "$".Replace('\', ' ' + [char]::ConvertFromUtf32(0xE0B1) + ' ') + ' '
			$prompt += Write-Prompt -Object "$($sl.PromptSymbols.SegmentForwardSymbol) " -ForegroundColor $lastColor -BackgroundColor $promptTagBackgroundStatusErrCheck
			$prompt += Write-Prompt -Object $norootsign -ForegroundColor $promptTagForeground -BackgroundColor $promptTagBackgroundStatusErrCheck
			$prompt += Write-Prompt -Object $sl.PromptSymbols.SegmentForwardSymbol -ForegroundColor $promptTagBackgroundStatusErrCheck -BackgroundColor $sl.Colors.SessionInfoForegroundColor
		}
	}
	# Writes the postfix to the prompt
	$prompt += ' '
	$prompt
}

$sl = $global:ThemeSettings #local settings
$sl.PromptSymbols.SegmentForwardSymbol = [char]::ConvertFromUtf32(0xE0B0)
$sl.Colors.SessionInfoBackgroundColor = [ConsoleColor]::Gray
$sl.Colors.SessionInfoForegroundColor = [ConsoleColor]::Black
$sl.Colors.PromptForegroundColor = [ConsoleColor]::White
$sl.Colors.PromptSymbolColor = [ConsoleColor]::White
$sl.Colors.PromptHighlightColor = [ConsoleColor]::DarkBlue
$sl.Colors.GitForegroundColor = [ConsoleColor]::Black
$sl.Colors.WithForegroundColor = [ConsoleColor]::White
$sl.Colors.WithBackgroundColor = [ConsoleColor]::DarkRed
$sl.Colors.VirtualEnvBackgroundColor = [System.ConsoleColor]::Red
$sl.Colors.VirtualEnvForegroundColor = [System.ConsoleColor]::White
$errForeground = [ConsoleColor]::White
$errBackground = [ConsoleColor]::DarkRed

$sl.Colors.TimeForegroundColor = [ConsoleColor]::Black
$sl.Colors.TimeBackgroundColor = [ConsoleColor]::White

$sl.PromptSymbols.PathHomeSymbol = [char]::ConvertFromUtf32(0xf015)