class.ilECSParticipantSettings.php

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<?php

declare(strict_types=1);

class ilECSParticipantSettings
{
    private static ?array $instances = null;

    private array $export = array();
    private array $import = array();

    private int $server_id;

    private ilDBInterface $db;

    private function __construct(int $a_server_id)
    {
        global $DIC;

        $this->db = $DIC['ilDB'];
        $this->server_id = $a_server_id;
        $this->read();
    }

    public static function getInstanceByServerId(int $a_server_id): ilECSParticipantSettings
    {
        return self::$instances[$a_server_id] ?? (self::$instances[$a_server_id] = new ilECSParticipantSettings($a_server_id));
    }

    public function getAvailabeMids(): array
    {
        $query = 'SELECT mid FROM ecs_part_settings ' .
            'WHERE sid = ' . $this->db->quote($this->server_id, 'integer');
        $res = $this->db->query($query);

        $mids = array();
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            $mids[] = (int) $row->mid;
        }
        return $mids;
    }



    public function lookupCmsMid(): int
    {
        $query = 'SELECT mid FROM ecs_part_settings ' .
                'WHERE sid = ' . $this->db->quote($this->server_id, 'integer') . ' ' .
                'AND import_type = ' . $this->db->quote(ilECSParticipantSetting::IMPORT_CMS);
        $res = $this->db->query($query);
        if ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            return (int) $row->mid;
        }
        return 0;
    }

    public function getServerId(): int
    {
        return $this->server_id;
    }

    private function read(): void
    {
        $query = 'SELECT * FROM ecs_part_settings ' .
            'WHERE sid = ' . $this->db->quote($this->getServerId(), 'integer') . ' ';
        $res = $this->db->query($query);
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            $this->export[$row->mid] = $row->export;
            $this->import[$row->mid] = $row->import;
        }
    }

    public function isImportAllowed(array $a_mids): bool
    {
        foreach ($a_mids as $mid) {
            if ($this->import[$mid]) {
                return true;
            }
        }
        return false;
    }

    public function getEnabledParticipants(): array
    {
        $ret = array();
        foreach ($this->export as $mid => $enabled) {
            if ($enabled) {
                $ret[] = $mid;
            }
        }
        return $ret;
    }

    public function isEnabled($a_mid): bool
    {
        return $this->export[$a_mid] ? true : false;
    }
}