SetBusinessHoursOnExistingAutoAttendant.ps1

# Author: Martin Heusser (@mozzeph)

Connect-MicrosoftTeams

$autoAttendantSelection = Get-CsAutoAttendant | Select-Object Name, Identity| Out-GridView -Title "Choose an Auto Attendant from the list." -PassThru

$tr1 = New-CsOnlineTimeRange -Start 08:15 -End 12:00
$tr2 = New-CsOnlineTimeRange -Start 13:30 -End 17:45
#$tr3 = New-CsOnlineTimeRange -Start 08:30 -End 16:00


$autoAttendant = Get-CsAutoAttendant -Identity $autoAttendantSelection.Identity

$autoAttendant.CallHandlingAssociations

$ExportCallFlow = $autoAttendant.Callflows | Where-Object {$_.Id -eq ($autoAttendant.CallHandlingAssociations | Where-Object {$_.Type -eq "AfterHours"}).CallFlowId}

$BuildCallFlow = New-Object psobject

$BuildCallFlow | Add-Member -MemberType NoteProperty -Name "Id" -Value $ExportCallFlow.Id
$BuildCallFlow | Add-Member -MemberType NoteProperty -Name "Name" -Value $ExportCallFlow.Name
$BuildCallFlow | Add-Member -MemberType NoteProperty -Name "Greetings" -Value $ExportCallFlow.Greetings
$BuildCallFlow | Add-Member -MemberType NoteProperty -Name "Menu" -Value $ExportCallFlow.Menu

$ExportCallHandlindAssociation = $autoAttendant.CallHandlingAssociations | Where-Object {$_.Type -match "AfterHours"}

$BuildCallHandlingAssociation = New-Object psobject

$BuildCallHandlingAssociation | Add-Member -MemberType NoteProperty -Name "Type" -Value $ExportCallHandlindAssociation.Type
$BuildCallHandlingAssociation | Add-Member -MemberType NoteProperty -Name "ScheduleId" -Value $ExportCallHandlindAssociation.ScheduleId
$BuildCallHandlingAssociation | Add-Member -MemberType NoteProperty -Name "CallFlowId" -Value $ExportCallHandlindAssociation.CallFlowId
$BuildCallHandlingAssociation | Add-Member -MemberType NoteProperty -Name "Enabled" -Value $ExportCallHandlindAssociation.Enabled

$autoAttendant.CallHandlingAssociations = $autoAttendant.CallHandlingAssociations | Where-Object {$_.Type -notmatch "AfterHours"}

$autoAttendant.CallFlows

$autoAttendant.CallFlows = $autoAttendant.CallFlows | Where-Object {$_.Name -notmatch "After hours Call Flow"}

$schedule = New-CsOnlineSchedule -Name "After Hours" -WeeklyRecurrentSchedule -MondayHours @($tr1,$tr2) -TuesdayHours @($tr1,$tr2) -WednesdayHours @($tr1,$tr2) -ThursdayHours @($tr1,$tr2) -FridayHours @($tr1,$tr2) -Complement
$scheduleId = $schedule.Id

$callHandlingAssociation = New-CsAutoAttendantCallHandlingAssociation -Type AfterHours -ScheduleId $ScheduleId -CallFlowId $BuildCallHandlingAssociation.CallFlowId

$autoAttendant.CallFlows += @($BuildCallFlow)
$autoAttendant.CallHandlingAssociations += @($CallHandlingAssociation)

Set-CsAutoAttendant -Instance $autoAttendant