functions/Invoke-WUGDevicePollNow.ps1

<#
.SYNOPSIS
Manages device polling configuration and triggers poll-now operations in WhatsUp Gold.
 
.DESCRIPTION
The Invoke-WUGDevicePollNow function triggers an immediate poll on one or more devices:
- Single device: PUT /api/v1/devices/{deviceId}/poll-now
- Batch devices: PATCH /api/v1/devices/-/poll-now
- Device group: PUT /api/v1/device-groups/{groupId}/poll-now
 
.PARAMETER DeviceId
One or more device IDs to poll immediately. Belongs to the 'ByDevice' parameter set.
 
.PARAMETER GroupId
The ID of a device group to poll immediately. Belongs to the 'ByGroup' parameter set.
 
.EXAMPLE
# Poll a single device now
Invoke-WUGDevicePollNow -DeviceId "123"
 
.EXAMPLE
# Poll multiple devices now
Invoke-WUGDevicePollNow -DeviceId 123, 456, 789
 
.EXAMPLE
# Poll all devices in a group
Invoke-WUGDevicePollNow -GroupId 101
 
.EXAMPLE
# Pipeline from Get-WUGDevice
Get-WUGDevice -DeviceGroupID 0 -SearchValue "Server" | Invoke-WUGDevicePollNow
 
.NOTES
Author: Jason Alberino (jason@wug.ninja)
Reference: https://docs.ipswitch.com/NM/WhatsUpGold2024/02_Guides/rest_api/index.html#tag/Device
#>

function Invoke-WUGDevicePollNow {
    [CmdletBinding(DefaultParameterSetName = 'ByDevice', SupportsShouldProcess = $true)]
    param(
        [Parameter(Mandatory = $true, Position = 0, ParameterSetName = 'ByDevice', ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)]
        [Alias('id')]
        [string[]]$DeviceId,

        [Parameter(Mandatory = $true, Position = 0, ParameterSetName = 'ByGroup')]
        [int]$GroupId
    )

    begin {
        Write-Debug "Starting Invoke-WUGDevicePollNow function."
        $baseUri = "${global:WhatsUpServerBaseURI}/api/v1"
        $allDeviceIds = @()
    }

    process {
        if ($PSCmdlet.ParameterSetName -eq 'ByDevice') {
            $allDeviceIds += $DeviceId
        }
    }

    end {
        $output = $null

        if ($PSCmdlet.ParameterSetName -eq 'ByGroup') {
            $uri = "${baseUri}/device-groups/${GroupId}/poll-now"
            Write-Debug "PUT URI: $uri"
            if (-not $PSCmdlet.ShouldProcess("Device group ${GroupId}", 'Poll now')) { return }
            try {
                $output = Get-WUGAPIResponse -Uri $uri -Method 'PUT'
                Write-Verbose "Successfully triggered poll for device group ${GroupId}."
            }
            catch {
                Write-Error "Error triggering poll for device group ${GroupId}: $_"
            }
        }
        else {
            if (-not $PSCmdlet.ShouldProcess("$($allDeviceIds.Count) device(s)", 'Poll now')) { return }

            if ($allDeviceIds.Count -eq 1) {
                # Single device poll-now
                $uri = "${baseUri}/devices/$($allDeviceIds[0])/poll-now"
                Write-Debug "PUT URI: $uri"
                try {
                    $output = Get-WUGAPIResponse -Uri $uri -Method 'PUT'
                    if ($output.data.success -or $output.success) {
                        Write-Verbose "Successfully triggered poll for device $($allDeviceIds[0])."
                    }
                }
                catch {
                    Write-Error "Error triggering poll for device $($allDeviceIds[0]): $_"
                }
            }
            else {
                # Batch poll-now
                $uri = "${baseUri}/devices/-/poll-now"
                $body = @{
                    devices = @($allDeviceIds | ForEach-Object { "$_" })
                } | ConvertTo-Json -Depth 4
                Write-Debug "PATCH URI: $uri, Body: $body"
                try {
                    $output = Get-WUGAPIResponse -Uri $uri -Method 'PATCH' -Body $body
                    if ($output.data) {
                        Write-Verbose "Triggered poll for $($allDeviceIds.Count) devices. Successful: $($output.data.successfulOperations)"
                    }
                }
                catch {
                    Write-Error "Error triggering batch poll: $_"
                }
            }
        }

        Write-Debug "Completed Invoke-WUGDevicePollNow function."
        return $output
    }
}

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