CoresightSquaredFeatures

<#
    .SYNOPSIS
        Check for and install server roles and features for PI Coresight.

    .DESCRIPTION
        The intent of this script is to check for, and optionally install all roles related to PI Coresight.
        By default, optional roles are installed, but customers can elect to install only required features.

    .PARAMETER Mode
        Determines whether the script will install missing roles and features or just list them (Install or List).
        DEFAULT: List

    .PARAMETER RequiredOnly
        Determines whether recommended roles and features are ignored. ($true or $false)
        DEFAULT: $false

    .EXAMPLE
        PS C:\Utilities\Scripts\Reporting> .\PICSCheckRolesFeatures.ps1 -Mode List -RequiredOnly $true

    .NOTES

        Last Modified: 28-July-2016

#>
[CmdletBinding()]
param (
       #OPTIONAL
       [Parameter(Mandatory=$false)]
       [ValidateSet('List','Install')]
       [String] $Mode="List",
       [Parameter(Mandatory=$false)]
       [bool] $RequiredOnly = $false,
       [Parameter(Mandatory=$false)]
       [bool] $IsCore = $false
      )
begin
    {
    #region Load ActiveDirectory module if it is not loaded.
        $ModuleName = "ServerManager"
        if(-not(Get-Module -name $ModuleName))
            {
                "{0}: Importing module {1}" -f (Get-Date), $ModuleName
                try {
                        Import-Module -Name $ModuleName
                        "{0}: Module {1} imported successfully" -f (Get-Date), $ModuleName
                    }
                catch
                    {
                        "{0}: ERROR! Module {1} not imported successfully!" -f (Get-Date), $ModuleName
                        exit
                    }
            }
        else {
                "{0}: Module {1} already loaded" -f (Get-Date), $ModuleName
             }
    #endregion
    }
process
      {
    #Check OS
    $OSVersion = (Get-WmiObject -class Win32_OperatingSystem).Caption
    "{0} detected." -f $OSVersion

    # Create arrays with required, optional and server 2012 features.
        if ($IsCore) {
        $features = @("WAS-Process-Model","WAS-NET-Environment", "WAS-Config-APIs", "NET-Framework-Core",
        "NET-Http-Activation", "NET-Non-Http-Activ", "Web-WebServer", "Web-Static-Content", "Web-Default-Doc",
        "Web-Net-Ext", "Web-Windows-Auth", "Web-Filtering", "Web-Url-Auth",
        "Web-Stat-Compression", "Web-Dyn-Compression")
        $optionalfeatures = @()
        $2012features = @("Web-Net-Ext45", "Web-Asp-Net45")
        }
        else
        {
        $features = @("WAS-Process-Model","WAS-NET-Environment", "WAS-Config-APIs", "NET-Framework-Core",
        "NET-Http-Activation", "NET-Non-Http-Activ", "Web-WebServer", "Web-Static-Content", "Web-Default-Doc",
        "Web-Http-Errors", "Web-Net-Ext", "Web-Windows-Auth", "Web-Filtering", "Web-Url-Auth", "Web-Basic-Auth",
        "Web-Stat-Compression", "Web-Dyn-Compression", "Web-Mgmt-Console",
        "Application-Server", "AS-Net-Framework", "AS-HTTP-Activation", "AS-Web-Support")
        $optionalfeatures = @("Web-Http-Redirect", "Web-Asp-Net", "Web-ISAPI-Ext", "Web-ISAPI-Filter",
        "Web-Http-Logging", "Web-Log-Libraries", "Web-Request-Monitor", "Web-Http-Tracing", "Web-Client-Auth",
        "Web-Digest-Auth", "Web-Cert-Auth", "Web-IP-Security", "Web-Scripting-Tools", "Web-Mgmt-Service")
        $2012features = @("NET-Framework-45-Core", "NET-WCF-HTTP-Activation45", "Web-Net-Ext45", "Web-Asp-Net45")
        }

    # Concatenate feature lists as appropriate
        if ($OSVersion -like '*2012*') {$features += $2012features}
        if ($RequiredOnly -eq $false) {$features += $optionalfeatures}
        $total = $features.Length
        $i = 0
        $count = 0
    foreach ($feature in $features)
        {
        "{0} of {1}: {2}" -f ++$i, $total, $feature
        $featureObj = Get-WindowsFeature -name $feature
        [string]$name = $featureObj.DisplayName

        if (!$featureObj.Installed) {
            "{0} NOT INSTALLED." -f $name
            $count++
            if ($Mode -eq "Install") {
                "Attempting to install {0}."  -f $name
                try {
                Add-WindowsFeature -name $feature
                "{0} installed successfully!" -f $name
                }
                catch {"ERROR installing {0}" -f $name}

            }

            }
        }
      }
end
{
    "{0} missing roles or features found" -f $count
}