functions/Get-WUGDeviceGroups.ps1

<#
.SYNOPSIS
Retrieves a list of device groups from WhatsUp Gold API.
 
.DESCRIPTION
The Get-WUGDeviceGroups function retrieves device groups from the WhatsUp Gold API
based on the specified parameters such as search value, view type, group type, and limit.
 
.PARAMETER SearchValue
Specifies the search text to filter device groups. Case-insensitive search by display name.
 
.PARAMETER View
Specifies the view type for the returned data. Valid values are "summary" or "detail". Default is "detail".
 
.PARAMETER GroupType
Specifies the type of device groups to retrieve. Valid values are "all", "static_group", "dynamic_group", or "layer2".
Default is "all".
 
.PARAMETER Limit
Specifies the maximum number of device groups to retrieve per page. Must be between 1 and 200. Default is 25.
 
.NOTES
Author: Jason Alberino (jason@wug.ninja)
Date: 2024-03-15
Modified: 2024-03-29
 
Reference: https://docs.ipswitch.com/NM/WhatsUpGold2022_1/02_Guides/rest_api/#operation/DeviceGroup_Get
#>

function Get-WUGDeviceGroups {
    param (
       [string]$SearchValue,
       [ValidateSet("summary", "detail")][string]$View = 'detail',
       [ValidateSet("all", "static_group", "dynamic_group", "layer2")][string]$GroupType = 'all',
       [ValidateRange(0, 250)][int]$Limit
    )

    # Write debug information
    Write-Debug "Function: Get-WUGDeviceGroups"
    Write-Debug "SearchValue: ${SearchValue}"
    Write-Debug "View: ${View}"
    Write-Debug "GroupType: ${GroupType}"
    Write-Debug "Limit: ${Limit}"

    # Global variables error checking
    if (-not $global:WUGBearerHeaders) { Write-Error -Message "Authorization header not set, running Connect-WUGServer";Connect-WUGServer}
    if ((Get-Date) -ge $global:expiry) {Write-Error -Message "Token expired, running Connect-WUGServer";Connect-WUGServer} else {Request-WUGAuthToken}
    if (-not $global:WhatsUpServerBaseURI) {Write-Error "Base URI not found. running Connect-WUGServer";Connect-WUGServer}
    # End global variables error checking
    
    $uri = $global:WhatsUpServerBaseURI + "/api/v1/device-groups/-?view=${View}&groupType=${GroupType}&limit=${Limit}"
    if ($SearchValue) {$uri += "&search=$SearchValue"}

    $allGroups = @()
    do {
        $result = Get-WUGAPIResponse -uri $uri -method 'GET'
        $groups = $result.data.groups

        foreach ($group in $groups) {
            $groupObject = [PSCustomObject]@{
                Id = $group.id
                ParentGroupId = $group.parentGroupId
                Name = $group.name
                Description = $group.description
                GroupType = $group.details.groupType
                MonitorState = $group.details.monitorState
                ChildrenCount = $group.details.childrenCount
                DeviceChildrenCount = $group.details.deviceChildrenCount
                DeviceDescendantCount = $group.details.deviceDescendantCount
            }
            $allGroups += $groupObject
        }

        $pageInfo = $result.paging

        if ($pageInfo.nextPageId) {
            $uri = $global:WhatsUpServerBaseURI + "/api/v1/device-groups/-?view=${View}&groupType=${GroupType}&limit=${Limit}&pageId=$($pageInfo.nextPageId)"
            if ($SearchValue) {
                $uri += "&search=$SearchValue"
            }
            $percentComplete = ($allGroups.Count / $pageInfo.size) * 100
            Write-Progress -Activity "Retrieved $($allGroups.Count) device groups already, wait for more." -PercentComplete $percentComplete -Status "Page $($pageInfo.nextPageId) of ?? (${Limit} per page)"
        }
    } while ($pageInfo.nextPageId)

    return $allGroups
}

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