Better Events List Script - Convert SXA Events templates into searchable items

Convert-EventsToSearchable.ps1

$tenantTemplatesPath = "master:\templates\Project\Showcase"
$sitePath = "master:\content\Showcase\int"


function Assert-FeatureTemplateInProject {
     [CmdletBinding()]
    param(
        [parameter(Mandatory=$true)]
        [String[]] $TenantTemplateFolder,
        [parameter(Mandatory=$true)]
        [String[]] $FeatureTemplatePath,
        [parameter(Mandatory=$true)]
        [String[]] $FeatureTemplateName
        )
        
    # does the template exist?
    $projectTemplate = Get-Item "$tenantTemplateFolder\$featureTemplateName" -ErrorAction SilentlyContinue

    #if we haven't created tenant events yet - we need to do it
    if ($projectTemplate -eq $null){
        # create template
        $projectTemplate = New-Item "$tenantTemplateFolder\$featureTemplateName" -ItemType "System/Templates/Template"
        # add base feature template
        Add-BaseTemplate  -Item $projectTemplate -Template "$featureTemplatePath/$featureTemplateName"
        # copy template icon from the base template
        $projectTemplate.__Icon = (Get-Item "master:\templates\$featureTemplatePath/$featureTemplateName").__Icon
    }

    #create standard values if they don't exist
    [Sitecore.Data.Items.TemplateItem]$templateItem = $projectTemplate
    if($TemplateItem.StandardValues -eq $null){
        $standardValues = $TemplateItem.CreateStandardValues()
    }

    # return the template
    return $projectTemplate
}

function Add-ToStandardValues {
     [CmdletBinding()]
    param(
        [parameter(Mandatory=$true)]
        [Item] $Template,
        [parameter(Mandatory=$true)]
        [Item[]] $InsertTemplates
        )
        
    # let's get the standard values
    [Sitecore.Data.Items.TemplateItem]$templateItem = Get-Item "$($Template.ProviderPath)"
    #if we haven't created project calendar event yet - we need to do it
    if($TemplateItem.StandardValues -eq $null){
        $standardValues = $TemplateItem.CreateStandardValues()
    }else{
        $standardValues = Get-Item "$($Template.ProviderPath)\__Standard Values" -ErrorAction SilentlyContinue
    }
    $standardValues.__Masters = $InsertTemplates
}

$searchableTemplate = Get-Item 'master:\templates\Foundation\Experience Accelerator\Search\Computed Fields\_Searchable'

# copy templates to project
$CalendarEventTemplate = Assert-FeatureTemplateInProject -TenantTemplateFolder $tenantTemplatesPath -FeatureTemplatePath "Feature/Experience Accelerator/Events/Datasource" -FeatureTemplateName "Calendar Event"
$EventListTemplate = Assert-FeatureTemplateInProject -TenantTemplateFolder $tenantTemplatesPath -FeatureTemplatePath "Feature/Experience Accelerator/Events/Datasource" -FeatureTemplateName "Event List"
$EventsFolderTemplate = Assert-FeatureTemplateInProject -TenantTemplateFolder $tenantTemplatesPath -FeatureTemplatePath "Feature/Experience Accelerator/Events/Datasource" -FeatureTemplateName "Events Folder"

# make events searchable
Add-BaseTemplate -Item $CalendarEventTemplate -TemplateItem $searchableTemplate

# set insert options
Add-ToStandardValues -Template $EventsFolderTemplate -InsertTemplates $EventListTemplate
Add-ToStandardValues -Template $EventListTemplate -InsertTemplates $CalendarEventTemplate

Get-ChildItem "$sitePath\Data" -Recurse | ? { $_.TemplateName -eq "Calendar Event" } | % { Set-ItemTemplate -Item $_ -TemplateItem $CalendarEventTemplate;} 
Get-ChildItem "$sitePath\Data" -Recurse | ? { $_.TemplateName -eq "Event List" } | % { Set-ItemTemplate -Item $_ -TemplateItem $EventListTemplate; $_.__Masters = $CalendarEventTemplate } 
Get-ChildItem "$sitePath\Data" -Recurse | ? { $_.TemplateName -eq "Events Folder" } | % { Set-ItemTemplate -Item $_ -TemplateItem $EventsFolderTemplate; $_.__Masters = $EventListTemplate }