<?php

class VigiloHooks

{

    // Callbacks pour différents événements

    // concernant les équipements supportés.

    public function preItemUpdate($item)

    {

        global $DB;

        $id = $item->getID();

        $query = <<<SQL

SELECT `template`

FROM glpi_plugin_vigilo_template

WHERE `id` = $id;

SQL;

        $item->fields['vigilo_template'] = 0;

        $result = $DB->query($query);

        if ($result) {

            $tpl        = $DB->result($result, 0, "template");

            $templates  = PluginVigiloTemplate::getTemplates();

            $index      = array_search($tpl, $templates, true);

            if (false !== $index) {

                $item->fields['vigilo_template'] = $index;

            }

        }

    }

    public function itemAddOrUpdate($item)

    {

        global $DB;

        $templates  = PluginVigiloTemplate::getTemplates();

        $tplId      = (int) $item->input['vigilo_template'];

        if ($tplId > 0 && $tplId < count($templates)) {

            $id         = $item->getID();

            $template   = $DB->escape($templates[$tplId]);

            $query      = <<<SQL

INSERT INTO `glpi_plugin_vigilo_template`(`id`, `template`)

VALUES ($id, '$template')

ON DUPLICATE KEY UPDATE `template` = '$template';

SQL;

            $DB->query($query);

            $item->fields['vigilo_template'] = $templates[$tplId];

        } else {

            $item->fields['vigilo_template'] = null;

        }

        $this->update($item);

    }

    public function itemPurge($item)

    {

        global $DB;

        $id         = $item->getID();

        $query      = "DELETE FROM `glpi_plugin_vigilo_template` WHERE `id` = $id;";

        $DB->query($query);

        $this->unmonitor($item->getField('name'));

    }

    // Méthodes outils / annexes

    public function writeVigiloConfig($obj, $objtype)

    {

        $dirs       = array(VIGILO_CONFDIR, $objtype, "managed");

        $confdir    = implode(DIRECTORY_SEPARATOR, $dirs);

        $file       = $confdir . DIRECTORY_SEPARATOR . $obj->getName() . ".xml";

        if (!file_exists($confdir)) {

            mkdir($confdir, 0770, true);

        }

        $res = file_put_contents($file, $obj, LOCK_EX);

        if (false !== $res) {

            chgrp($file, "vigiconf");

            chmod($file, 0660);

        }

    }

    // Méthodes d'ajout / mise à jour / suppression de la supervision

    // pour un objet équipement supporté.

    public function delete($computer)

    {

        global $DB;

        $this->unmonitor($computer->fields["name"]);

        $query = "UPDATE `glpi_plugin_vigilo_config` SET `value` = 1 WHERE `key` = 'needs_deploy';";

        $DB->query($query);

    }

    public function update($item)

    {

        global $DB;

        if (isset($item->oldvalues["name"])) {

            $this->unmonitor($item->oldvalues["name"]);

        }

        $query = "UPDATE `glpi_plugin_vigilo_config` SET `value` = 1 WHERE `key` = 'needs_deploy';";

        $DB->query($query);

        if ($item->getField("is_template")) {

            return;

        }

        $cls = "PluginVigiloMonitored" . $item->getType();

        if (class_exists($cls, true)) {

            $obj = new $cls($item);

            $this->writeVigiloConfig($obj, "hosts");

        }

    }

    public function unmonitor($host)

    {

        $dirs = array(VIGILO_CONFDIR, "hosts", "managed", $host . ".xml");

        $filename = implode(DIRECTORY_SEPARATOR, $dirs);

        if (file_exists($filename)) {

            unlink($filename);

        }

    }

    // Méthodes de mise à jour d'un équipement

    // lorsque l'un de ses composants change.

    public function refreshSoftwareVersion($version)

    {

        $computer = new Computer();

        $computer->getFromDB($version->getField("computers_id"));

        $this->update($computer);

    }

    public function refreshSoftware($software)

    {

        $softwareVer    = new SoftwareVersion();

        $versions       = $softwareVer->find('softwares_id=' . $software->getID());

        foreach ($versions as $version) {

            if (!$version['id']) {

                continue;

            }

            $installations  = new Computer_SoftwareVersion();

            $filter         = 'softwareversions_id=' . $version['id'];

            $installations  = $installations->find($filter);

            foreach ($installations as $installation) {

                if (-1 === $installation['computers_id']) {

                    continue;

                }

                $computer = new Computer();

                $computer->getFromDB($installation['computers_id']);

                $this->update($computer);

            }

        }

    }

    public function refreshDisk($disk)

    {

        $id = $disk->getField('computers_id');

        $computer = new Computer();

        $computer->getFromDB($id);

        $this->update($computer);

    }

    public function refreshAddress($address)

    {

        $id         = $address->getField('mainitems_id');

        $itemtype   = $address->getField('mainitemtype');

        $item       = new $itemtype();

        $item->getFromDB($id);

        $this->update($item);

    }

    public function refreshDevice($device)

    {

        $id         = $device->getField('items_id');

        $itemtype   = $device->getField('itemtype');

        $item       = new $itemtype();

        $item->getFromDB($id);

        $this->update($item);

    }

    // Méthode de mise à jour en cas d'évolution de l'emplacement,

    // de l'entité ou du fabricant d'un équipement.

    public function updateGroups($obj)

    {

        $groups = new PluginVigiloGroups();

        $this->writeVigiloConfig($groups, "groups");

    }

}