## Function to log activity to the configured log directory
Function global:Log
{

}

## Function to determine if the current user context is an Administrator
Function global:IsAdmin
{
If ( ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator) )
{ Return $true } Else { Return $false }
}

## Runs a script from the repo
Function global:Run-PSScript
{
param(
    [string]$Type='management-scripts',
    [string]$Name,
    [string]$Arguments)

## Get rid of null arguments
If ( $Arguments -eq "null" ) { $Arguments = $null }

## Make sure $Name and $Type are defined
If ( $Name -and $Type )
{
    ## Form the URL to the specified script
    $URL = "https://dev.emberkom.com/emberkom/${Type}/raw/branch/master/${Name}.ps1"
    
    ## Get the script
    Write-Output "Retrieving : ${Name}.ps1"
    Try { $Script = (New-Object Net.WebClient).DownloadString($URL) }
    Catch { Write-Output $_.Exception.Message }
    
    ## Make a script block
    Try { $ScriptBlock = [Scriptblock]::Create($Script) }
    Catch { Write-Output $_.Exception.Message }
    
    ## Run the script any any arguments
    Write-Output "Executing: ${Name}.ps1 ${Arguments}"
    Try { Invoke-Command -ScriptBlock $ScriptBlock -ArgumentList $Arguments }
    Catch { Write-Output $_.Exception.Message }
}
Else { Write-Output "No script or type was specified" }
}

## Function to return a Powershell version object from a string
Function Get-Version
{
param([string]$Version)
[int]$Sets = 4
$VersionArray = $Version.Split('.')
If ( $VersionArray.Count -le $Sets ) { $Sets = $VersionArray.Count }
For ($i = 0; $i -le ($Sets - 1); $i++)
{ $Return = '{0}.{1}' -f $Return, $VersionArray[$i] }
Return [version]$Return.Trim('.')
}

## Function to compare current Windows version with a supplied version
Function IsWindowsVersion
{
param(
    [Parameter(Mandatory=$true,ParameterSetName='gt')]
    [string]$gt,
    [Parameter(Mandatory=$true,ParameterSetName='ge')]
    [string]$ge,
    [Parameter(Mandatory=$true,ParameterSetName='lt')]
    [string]$lt,
    [Parameter(Mandatory=$true,ParameterSetName='le')]
    [string]$le,
    [Parameter(Mandatory=$true,ParameterSetName='eq')]
    [string]$eq
)
[version]$WindowsVersion = [System.Environment]::OSVersion.Version
switch ($PSCmdlet.ParameterSetName)
{
    'gt' { If ( $WindowsVersion -gt (Get-Version $gt) ) { Return $true } Else { Return $false } }
    'ge' { If ( $WindowsVersion -ge (Get-Version $ge) ) { Return $true } Else { Return $false } }
    'lt' { If ( $WindowsVersion -lt (Get-Version $lt) ) { Return $true } Else { Return $false } }
    'le' { If ( $WindowsVersion -le (Get-Version $le) ) { Return $true } Else { Return $false } }
    'eq' { If ( $WindowsVersion -eq (Get-Version $eq) ) { Return $true } Else { Return $false } }
}
}