Get a report of which cameras are in which views on an XProtect VMS

Get-ViewReport.ps1

function Resolve-VmsViewGroupPath {
    [CmdletBinding()]
    [MilestonePSTools.RequiresVmsConnection()]
    param(
        [Parameter(Mandatory, ValueFromPipeline)]
        [Alias('DeviceGroup')]
        [MilestonePSTools.ValidateVmsItemType('ViewGroup')]
        [VideoOS.Platform.ConfigurationItems.IConfigurationItem]
        $Group
    )

    begin {
        Assert-VmsRequirementsMet
        $ctor = $null
        $sb = [text.stringbuilder]::new()
    }

    process {
        if ($null -eq $ctor -or $ctor.ReflectedType -ne $Group.GetType()) {
            $ctor = $Group.GetType().GetConstructor(@([videoos.platform.serverid], [string]))
        }
        try {
            $current = $Group
            $null = $sb.Clear().Insert(0, "/$($current.Name -replace '(?<!`)/', '`/')")
            while ($current.ParentItemPath -ne '/') {
                $current = $ctor.Invoke(@($current.ServerId, $current.ParentItemPath))
                $null = $sb.Insert(0, "/$($current.Name -replace '(?<!`)/', '`/')")
            }
            $sb.ToString()
        } catch {
            throw
        }
    }
}


$resolvedPaths = @{}
Get-VmsViewGroup -Recurse | Get-VmsView | ForEach-Object {
    if (!$resolvedPaths.ContainsKey($_.ParentItemPath)) {
        $resolvedPaths[$_.ParentItemPath] = $_ | Get-VmsParentItem | Resolve-VmsViewGroupPath
    }
    $viewLocation = $resolvedPaths[$_.ParentItemPath] + '/' + $_.Name
    $record = [ordered]@{
        View         = $_.Name
        Location     = $viewLocation
        Position     = $null
        Camera       = $null
        CameraId     = $null
        ViewItemType = $null
    }
    $_.ViewItemChildItems | ForEach-Object {
        $id = $cam = $null
        $xml = [xml]$_.ViewItemDefinitionXml
        $camera = switch ($xml.viewitem.displayname) {
            'Camera ViewItem' {
                $id = $xml.viewitem.iteminfo.cameraid
                if (![string]::IsNullOrEmpty($id)) {
                    $cam = Get-VmsCamera -Id $xml.viewitem.iteminfo.cameraid -ErrorAction SilentlyContinue
                }
                if ($null -eq $cam) {
                    [pscustomobject]@{
                        Name = 'Not found'
                        Id   = $xml.viewitem.iteminfo.cameraid
                    }
                } else {
                    $cam
                }
            }

            'Access monitor' {
                $config = [xml]($xml.viewitem.iteminfo.viewitem.properties.property | Where-Object name -eq 'Configuration').value
                $id = $config.configuration.Camera -as [guid]
                if ($id) {
                    $cam = Get-VmsCamera -Id $id -ErrorAction SilentlyContinue
                } else {
                    Write-Error "Failed to extract the camera ID from Access monitor view item configuration. Inspect the XML document in this ErrorRecord's TargetObject." -TargetObject $xml.OuterXml
                }
                if ($null -eq $cam) {
                    [pscustomobject]@{
                        Name = 'Not found'
                        Id   = ''
                    }
                } else {
                    $cam
                }
            }

            'Empty ViewItem' {
                [pscustomobject]@{
                    Name = 'Empty'
                    Id   = ''
                }
            }

            default {
                [pscustomobject]@{
                    Name = ''
                    Id   = ''
                }
            }
        }

        $record.Position = $_.ViewItemPosition
        $record.Camera = $camera.Name
        $record.CameraId = $camera.Id
        $record.ViewItemType = (($xml.viewitem.type -split ',')[0] -split '\.')[-1]
        [pscustomobject]$record
    }
}