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<?php

/**
 * ---------------------------------------------------------------------
 *
 * GLPI - Gestionnaire Libre de Parc Informatique
 *
 * http://glpi-project.org
 *
 * @copyright 2015-2022 Teclib' and contributors.
 * @copyright 2003-2014 by the INDEPNET Development Team.
 * @copyright 2010-2022 by the FusionInventory Development Team.
 * @licence   https://www.gnu.org/licenses/gpl-3.0.html
 *
 * ---------------------------------------------------------------------
 *
 * LICENSE
 *
 * This file is part of GLPI.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 * ---------------------------------------------------------------------
 */

namespace Glpi\Inventory\Asset;

use Computer_Item;
use Glpi\Inventory\Conf;
use Monitor as GMonitor;
use RuleImportAssetCollection;
use Toolbox;

class Monitor extends InventoryAsset
{
    private $import_monitor_on_partial_sn = false;

    public function prepare(): array
    {
        $serials = [];
        $mapping = [
            'caption'      => 'name',
            'manufacturer' => 'manufacturers_id',
            'description'  => 'comment',
            'type'         => 'monitortypes_id'
        ];

        foreach ($this->data as &$val) {
            foreach ($mapping as $origin => $dest) {
                if (property_exists($val, $origin)) {
                    $val->$dest = $val->$origin;
                }
            }
            $val->is_dynamic = 1;

            if (!property_exists($val, 'name')) {
                $val->name = '';
            }

            if (property_exists($val, 'caption')) {
                $val->monitormodels_id = $val->caption;
            }

            if (property_exists($val, 'comment')) {
                if ($val->name == '') {
                    $val->name = $val->comment;
                }
                unset($val->comment);
            }

            if (!property_exists($val, 'serial')) {
                $val->serial = '';
            }

            if (!property_exists($val, 'manufacturers_id')) {
                $val->manufacturers_id = '';
            }

            if (!isset($serials[$val->serial])) {
                $serials[$val->serial] = 1;
            }
        }

        return $this->data;
    }

    /**
     * Get existing entries from database
     *
     * @return array
     */
    protected function getExisting(): array
    {
        global $DB;

        $db_existing = [];

        $iterator = $DB->request([
            'SELECT'    => [
                'glpi_monitors.id',
                'glpi_computers_items.id AS link_id'
            ],
            'FROM'      => 'glpi_computers_items',
            'LEFT JOIN' => [
                'glpi_monitors' => [
                    'FKEY' => [
                        'glpi_monitors'         => 'id',
                        'glpi_computers_items'  => 'items_id'
                    ]
                ]
            ],
            'WHERE'     => [
                'itemtype'                          => 'Monitor',
                'computers_id'                      => $this->item->getID(),
                'entities_id'                       => $this->entities_id,
                'glpi_computers_items.is_dynamic'   => 1,
                'glpi_monitors.is_global'           => 0
            ]
        ]);

        foreach ($iterator as $data) {
            $idtmp = $data['link_id'];
            unset($data['link_id']);
            $db_existing[$idtmp] = $data['id'];
        }

        return $db_existing;
    }

    public function handle()
    {
        $entities_id = $this->entities_id;
        $monitor = new GMonitor();
        $computer_Item = new Computer_Item();
        $rule = new RuleImportAssetCollection();
        $monitors = [];

        foreach ($this->data as $key => $val) {
            $input = [
                'itemtype'     => 'Monitor',
                'name'         => $val->name,
                'serial'       => $val->serial ?? '',
                'entities_id'  => $entities_id
            ];
            $data = $rule->processAllRules($input, [], ['class' => $this, 'return' => true]);

            if (isset($data['found_inventories'])) {
                $items_id = null;
                $itemtype = 'Monitor';
                if ($data['found_inventories'][0] == 0) {
                    // add monitor
                    $val->entities_id = $entities_id;
                    $val->is_dynamic = 1;
                    $items_id = $monitor->add(Toolbox::addslashes_deep((array)$val));
                } else {
                    $items_id = $data['found_inventories'][0];
                    $monitor->update(Toolbox::addslashes_deep((array)$val + ['id' => $items_id]));
                }

                $monitors[] = $items_id;
                $rulesmatched = new \RuleMatchedLog();
                $agents_id = $this->agent->fields['id'];
                if (empty($agents_id)) {
                    $agents_id = 0;
                }
                $inputrulelog = [
                    'date'      => date('Y-m-d H:i:s'),
                    'rules_id'  => $data['rules_id'],
                    'items_id'  => $items_id,
                    'itemtype'  => $itemtype,
                    'agents_id' => $agents_id,
                    'method'    => 'inventory'
                ];
                $rulesmatched->add($inputrulelog, [], false);
                $rulesmatched->cleanOlddata($items_id, $itemtype);
            }
        }

        $db_monitors = $this->getExisting();
        if (count($db_monitors) == 0) {
            foreach ($monitors as $monitors_id) {
                $input = [
                    'computers_id' => $this->item->fields['id'],
                    'itemtype'     => 'Monitor',
                    'items_id'     => $monitors_id,
                    'is_dynamic'   => 1,
                ];
                $this->addOrMoveItem($input);
            }
        } else {
           // Check all fields from source:
            foreach ($monitors as $key => $monitors_id) {
                foreach ($db_monitors as $keydb => $monits_id) {
                    if ($monitors_id == $monits_id) {
                        unset($monitors[$key]);
                        unset($db_monitors[$keydb]);
                        break;
                    }
                }
            }

           // Delete monitors links in DB
            if (!$this->main_asset || !$this->main_asset->isPartial()) {
                foreach ($db_monitors as $idtmp => $monits_id) {
                    $computer_Item->delete(['id' => $idtmp], true);
                }
            }

            foreach ($monitors as $key => $monitors_id) {
                $input = [
                    'computers_id' => $this->item->fields['id'],
                    'itemtype'     => 'Monitor',
                    'items_id'     => $monitors_id,
                    'is_dynamic'   => 1,
                ];
                $this->addOrMoveItem($input);
            }
        }
    }

    public function checkConf(Conf $conf): bool
    {
        $this->import_monitor_on_partial_sn = $conf->import_monitor_on_partial_sn;
        return $conf->import_monitor == 1;
    }
}