Lability.psm1

#Requires -RunAsAdministrator

## Set the global defaults
$labDefaults = @{
    ModuleRoot = Split-Path -Path $MyInvocation.MyCommand.Path -Parent;
    ModuleName = 'Lability';
    ConfigurationData = 'Config';
    HostConfigFilename = 'HostDefaults.json';
    VmConfigFilename = 'VmDefaults.json';
    MediaConfigFilename = 'Media.json';
    CustomMediaConfigFilename = 'CustomMedia.json';
    DscResourceDirectory = 'DSCResources';
    RepositoryUri = 'https://www.powershellgallery.com/api/v2/package';
}

## Import localisation strings
Import-LocalizedData -BindingVariable localized -FileName Resources.psd1;

## Import the \Lib files. This permits loading of the module's functions for unit testing, without having to unload/load the module.
$moduleRoot = Split-Path -Path $MyInvocation.MyCommand.Path -Parent;
$moduleLibPath = Join-Path -Path $moduleRoot -ChildPath 'Lib';
$moduleSrcPath = Join-Path -Path $moduleRoot -ChildPath 'Src';
Get-ChildItem -Path $moduleLibPath,$moduleSrcPath -Include *.ps1 -Exclude '*.Tests.ps1' -Recurse |
    ForEach-Object {
        Write-Verbose -Message ('Importing library\source file ''{0}''.' -f $_.FullName);
        ## https://becomelotr.wordpress.com/2017/02/13/expensive-dot-sourcing/
        . ([System.Management.Automation.ScriptBlock]::Create(
                [System.IO.File]::ReadAllText($_.FullName)
            ));
    }

## Deploy builtin certificates to %ALLUSERSPROFILE%\PSLab
$moduleConfigPath = Join-Path -Path $moduleRoot -ChildPath 'Config';
$allUsersConfigPath = Join-Path -Path $env:AllUsersProfile -ChildPath "$($labDefaults.ModuleName)\Certificates\";
[ref] $null = New-Directory -Path $allUsersConfigPath;
Get-ChildItem -Path $moduleConfigPath -Include *.cer,*.pfx -Recurse | ForEach-Object {
    Write-Verbose -Message ('Updating certificate ''{0}''.' -f $_.FullName);
    Copy-Item -Path $_ -Destination $allUsersConfigPath;
}

## Create the credential check scriptblock
$credentialCheckScriptBlock = {
    ## Only prompt if -Password is not specified. This works around the credential pop-up regardless of the ParameterSet!
    if ($PSCmdlet.ParameterSetName -eq 'PSCredential') {
        Get-Credential -Message $localized.EnterLocalAdministratorPassword -UserName 'LocalAdministrator';
    }
}

## Load the call stack logging setting referenced by WriteVerbose
$labDefaults['CallStackLogging'] = (Get-LabHostDefault).EnableCallStackLogging -eq $true;

## Ensure we load the required DISM module version
Import-DismModule;

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