#
# Copyright 2024 Centreon (http://www.centreon.com/)
#
# Centreon is a full-fledged industry-strength solution that meets
# the needs in IT infrastructure and application monitoring for
# service performance.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

package centreon::common::powershell::wsus::computersstatus;

use strict;
use warnings;
use centreon::common::powershell::functions;

sub get_powershell {
    my (%options) = @_;

    my $ps = '
$culture = new-object "System.Globalization.CultureInfo" "en-us"    
[System.Threading.Thread]::CurrentThread.CurrentUICulture = $culture
';

    $ps .= centreon::common::powershell::functions::escape_jsonstring(%options);
    $ps .= centreon::common::powershell::functions::convert_to_json(%options);

    $ps .= '
$wsusServer = "' . $options{wsus_server} . '"
$useSsl = ' . $options{use_ssl} . '
$wsusPort = ' . $options{wsus_port} . '
$notUpdatedSince = ' . $options{not_updated_since} . '

Try {
    [void][reflection.assembly]::LoadWithPartialName("Microsoft.UpdateServices.Administration") 
} Catch {
    Write-Host $Error[0].Exception
    exit 1
}

$ProgressPreference = "SilentlyContinue"

Try {
    $ErrorActionPreference = "Stop"

    $wsusObject = [Microsoft.UpdateServices.Administration.AdminProxy]::getUpdateServer($wsusServer, $useSsl, $wsusPort)

    $computerTargetScope = New-object Microsoft.UpdateServices.Administration.ComputerTargetScope
    $computerTargetScope.IncludeDownstreamComputerTargets = $true
    $updateSource = "All"
    $wsusStatus = $wsusObject.GetComputerStatus($computerTargetScope, $updateSource)

    $notUpdatedSinceTimespan = new-object TimeSpan($notUpdatedSince, 0, 0, 0)
    $computerTargetScopeNotContactedSince = new-object Microsoft.UpdateServices.Administration.ComputerTargetScope
    $computerTargetScopeNotContactedSince.ToLastReportedStatusTime = [DateTime]::UtcNow.Subtract($notUpdatedSinceTimespan)
    $computerTargetScopeNotContactedSince.IncludeDownstreamComputerTargets = $true
    $computersNotContactedSinceCount = $wsusObject.GetComputerTargetCount($computerTargetScopeNotContactedSince)

    $computerTargetScopeUnassigned = new-object Microsoft.UpdateServices.Administration.ComputerTargetScope
    $computerTargetScopeUnassigned.IncludeDownstreamComputerTargets = $true
    $group = $wsusObject.GetComputerTargetGroups() | ? {$_.Name -like "Unassigned Computers"}
    $computerTargetScopeUnassigned.ComputerTargetGroups.Add($group) >$null
    $unassignedComputersCount = $wsusObject.GetComputerTargetCount($computerTargetScopeUnassigned)

    $item = @{
        ComputerTargetsNeedingUpdatesCount = $wsusStatus.ComputerTargetsNeedingUpdatesCount;
        ComputerTargetsWithUpdateErrorsCount = $wsusStatus.ComputerTargetsWithUpdateErrorsCount;
        ComputersUpToDateCount = $wsusStatus.ComputersUpToDateCount;
        ComputersNotContactedSinceCount = $computersNotContactedSinceCount;
        UnassignedComputersCount = $unassignedComputersCount
    } 

    $jsonString = $item | ConvertTo-JSON-20
    Write-Host $jsonString
} Catch {
    Write-Host $Error[0].Exception
    exit 1
}

exit 0
';

    return $ps;
}

1;

__END__

=head1 DESCRIPTION

Method to get WSUS computers informations.

=cut
