DSCResources/MSFT_SPAuthenticationRealm/MSFT_SPAuthenticationRealm.psm1

$script:resourceModulePath = Split-Path -Path (Split-Path -Path $PSScriptRoot -Parent) -Parent
$script:modulesFolderPath = Join-Path -Path $script:resourceModulePath -ChildPath 'Modules'
$script:resourceHelperModulePath = Join-Path -Path $script:modulesFolderPath -ChildPath 'SharePointDsc.Util'
Import-Module -Name (Join-Path -Path $script:resourceHelperModulePath -ChildPath 'SharePointDsc.Util.psm1')

function Get-TargetResource()
{
    [CmdletBinding()]
    [OutputType([System.Collections.HashTable])]
    param (
        [Parameter(Mandatory = $true)]
        [ValidateSet('Yes')]
        [String]
        $IsSingleInstance,

        [Parameter(Mandatory = $true)]
        [String]
        $AuthenticationRealm,

        [Parameter()]
        [System.Management.Automation.PSCredential]
        $InstallAccount
    )

    Write-Verbose -Message "Getting farm authentication realm"

    $result = Invoke-SPDscCommand -Credential $InstallAccount `
        -ScriptBlock {
        $currentRealm = Get-SPAuthenticationRealm

        Write-Verbose -Message "Current farm authentication realm is '$currentRealm'"

        return @{
            IsSingleInstance    = "Yes"
            AuthenticationRealm = $currentRealm
        }
    }

    return $result
}

function Set-TargetResource()
{
    [CmdletBinding()]
    param (
        [Parameter(Mandatory = $true)]
        [ValidateSet('Yes')]
        [String]
        $IsSingleInstance,

        [Parameter(Mandatory = $true)]
        [String]
        $AuthenticationRealm,

        [Parameter()]
        [System.Management.Automation.PSCredential]
        $InstallAccount
    )

    Write-Verbose -Message "Setting farm authentication realm to $AuthenticationRealm"

    Invoke-SPDscCommand -Credential $InstallAccount `
        -Arguments $PSBoundParameters `
        -ScriptBlock {

        $params = $args[0]
        Set-SPAuthenticationRealm -Realm $params.AuthenticationRealm
    }
}

function Test-TargetResource()
{
    [CmdletBinding()]
    [OutputType([System.Boolean])]
    [CmdletBinding()]
    param (
        [Parameter(Mandatory = $true)]
        [ValidateSet('Yes')]
        [String]
        $IsSingleInstance,

        [Parameter(Mandatory = $true)]
        [String]
        $AuthenticationRealm,

        [Parameter()]
        [System.Management.Automation.PSCredential]
        $InstallAccount
    )

    Write-Verbose -Message "Testing farm authentication realm"

    $CurrentValues = Get-TargetResource @PSBoundParameters

    Write-Verbose -Message "Current Values: $(Convert-SPDscHashtableToString -Hashtable $CurrentValues)"
    Write-Verbose -Message "Target Values: $(Convert-SPDscHashtableToString -Hashtable $PSBoundParameters)"

    $result = Test-SPDscParameterState -CurrentValues $CurrentValues `
        -Source $($MyInvocation.MyCommand.Source) `
        -DesiredValues $PSBoundParameters `
        -ValuesToCheck @("AuthenticationRealm")

    Write-Verbose -Message "Test-TargetResource returned $result"

    return $result
}

Export-ModuleMember -Function *-TargetResource