functions/license/Get-PSFLicense.ps1

function Get-PSFLicense
{
<#
    .SYNOPSIS
        Returns registered licenses
     
    .DESCRIPTION
        Returns all matching licenses from the PSFramework internal license cache.
     
    .PARAMETER Filter
        Default: "*"
        Filters for the name of the product. Uses the -like operator.
     
    .PARAMETER ProductType
        Only licenses of products for any of the specified types are considered.
     
    .PARAMETER LicenseType
        Only licenses of any matching type are returned.
     
    .PARAMETER Manufacturer
        Default: "*"
        Only licenses for products of a matching manufacturer are returned. Uses the -like operator for comparisons.
     
    .EXAMPLE
        PS C:\> Get-PSFLicense *Microsoft*
     
        Returns all registered licenses for products with the string "Microsoft" in their name
     
    .EXAMPLE
        PS C:\> Get-PSFLicense -LicenseType Commercial -ProductType Library
     
        Returns a list of all registered licenses for products that have commercial licenses and are libraries.
#>

    [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSReviewUnusedParameter", "")]
    [CmdletBinding(PositionalBinding = $false, HelpUri = 'https://psframework.org/documentation/commands/PSFramework/Get-PSFLicense')]
    [OutputType([PSFramework.License.License])]
    param (
        [Parameter(Position = 0)]
        [Alias('Product')]
        [String]
        $Filter = "*",
        
        [PSFramework.License.ProductType[]]
        $ProductType,
        
        [PSFramework.License.LicenseType]
        $LicenseType,
        
        [String]
        $Manufacturer = "*"
    )
    
    process
    {
        [PSFramework.License.LicenseHost]::Get() | Where-Object {
            if ($_.Product -notlike $Filter) { return $false }
            if ($_.Manufacturer -notlike $Manufacturer) { return $false }
            if ($ProductType -and ($_.ProductType -notin $ProductType)) { return $false }
            if ($licenseType -and -not ($_.LicenseType -band $LicenseType)) { return $false }
            return $true
        }
    }
}