functions/Get-WUGDeviceGroup.ps1

<#
.SYNOPSIS
Retrieves device groups from WhatsUp Gold based on specified criteria.
 
.DESCRIPTION
This function retrieves device groups from WhatsUp Gold using the REST API. It allows you to search for device groups by name, retrieve child groups of a parent group, and specify the view and limit of returned results.
 
.PARAMETER SearchValue
Specifies a search value to filter device groups by name.
 
.PARAMETER ParentGroupName
Specifies the name of the parent device group to retrieve child groups from.
 
.PARAMETER View
Specifies the view of the device group details to be returned. Options include "basic", "card", and "overview".
 
.PARAMETER Limit
Specifies the maximum number of device groups to return per page. Default is 25.
 
.EXAMPLE
Get-WUGDeviceGroup -SearchValue "Network" -Limit 50
Retrieves device groups with names containing "Network" and limits the results to 50.
 
.EXAMPLE
Get-WUGDeviceGroup -ParentGroupName "Main Office" -View card
Retrieves child device groups of the parent group named "Main Office" and returns details in card view.
 
.NOTES
Author: Jason Alberino (jason@wug.ninja)
Date: 2023-04-15
Modified: 2024-03-15
Reference: https://docs.ipswitch.com/NM/WhatsUpGold2022_1/02_Guides/rest_api/#operation/DeviceGroup_Get
#>

function Get-WUGDeviceGroup {
    param (
        [Parameter(Mandatory = $true, Position = 0)][string]$GroupId,
        [ValidateSet("summary", "detail")][string]$View = 'detail'
    )

    # Construct the URI
    $uri = "${global:WhatsUpServerBaseURI}/api/v1/device-groups/${GroupId}?view=${View}"
    
    # Write debug information
    Write-Debug "Function: Get-WUGDeviceGroup"
    Write-Debug "GroupId: ${GroupId}"
    Write-Debug "View: ${View}"
    
    # 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

    # Make the API request
    try {
        $response = Get-WUGAPIResponse -Uri $uri -Method 'GET'
        $deviceGroup = $response.data

        # Output in a format similar to Get-WUGDevices
        $result = [PSCustomObject]@{
            parentGroupId        = $deviceGroup.parentGroupId
            groupType            = $deviceGroup.details.groupType
            monitorState         = $deviceGroup.details.monitorState
            childrenCount        = $deviceGroup.details.childrenCount
            deviceChildrenCount  = $deviceGroup.details.deviceChildrenCount
            deviceDescendantCount = $deviceGroup.details.deviceDescendantCount
            name                 = $deviceGroup.name
            id                   = $deviceGroup.id
        }
        return $result
    }
    catch {
        Write-Error "Error getting device group: $_"
    }
}

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