Public/Get-DokuPageVersionInfo.ps1

function Get-DokuPageVersionInfo {
<#
    .SYNOPSIS
        Returns information about a specific version of a Wiki page

    .DESCRIPTION
        Returns information about a specific version of a Wiki page

    .PARAMETER FullName
        The full page name for which to return the data

    .PARAMETER VersionTimestamp
        The timestamp for which version to get the info from

    .EXAMPLE
        PS C:\> $PageInfo = Get-DokuPageVersionInfo -FullName "namespace:namespace:page" -VersionTimestamp 1497464418

    .OUTPUTS
        System.Management.Automation.PSObject

    .NOTES
        AndyDLP - 2018-05-26
#>


    [CmdletBinding()]
    [OutputType([psobject])]
    param
    (
        [Parameter(Mandatory = $true,
                   Position = 1,
                   ValueFromPipeline = $true,
                   ValueFromPipelineByPropertyName = $true,
                   HelpMessage = 'The full page name for which to return the data')]
        [ValidateNotNullOrEmpty()]
        [string[]]$FullName,
        [Parameter(Mandatory = $true,
                   Position = 2,
                   ValueFromPipeline = $true,
                   ValueFromPipelineByPropertyName = $true,
                   HelpMessage = 'The timestamp for which version to get the info from')]
        [ValidateNotNullOrEmpty()]
        [int]$VersionTimestamp
    )

    begin {}

    process {
        foreach ($PageName in $FullName) {
            $APIResponse = Invoke-DokuApiCall -MethodName 'wiki.getPageInfoVersion' -MethodParameters @($PageName,$VersionTimestamp)
            if ($APIResponse.CompletedSuccessfully -eq $true) {
                $ArrayValues = ($APIResponse.XMLPayloadResponse | Select-Xml -XPath "//struct").Node.Member.Value.Innertext
                $PageObject = New-Object PSObject -Property @{
                    FullName = $PageName
                    LastModified = Get-Date -Date ($ArrayValues[1])
                    Author = $ArrayValues[2]
                    VersionTimestamp = $ArrayValues[3]
                    PageName = ($PageName -split ":")[-1]
                    ParentNamespace = ($PageName -split ":")[-2]
                    RootNamespace = ($PageName -split ":")[0]
                }
                $PageObject
            } elseif ($null -eq $APIResponse.ExceptionMessage) {
                Write-Error "Fault code: $($APIResponse.FaultCode) - Fault string: $($APIResponse.FaultString)"
            } else {
                Write-Error "Exception: $($APIResponse.ExceptionMessage)"
            }
        }
    } # process

    end {}
}