<?PHP
/**
 * Contains a class of blacklists for unwanted terms.
 *
 * @author Joshua Ramon Enslin <joshua@museum-digital.de>
 */
declare(strict_types = 1);

/**
 * Contains lists of disallowed terms by language.
 */
final class NodaBlacklistedTerms {
    /**
     * A blacklist of disallowed tags. All entries are listed in full lowercase.
     */
    public const TAG_BLACKLIST = [
        'de' => [
            'andere',
            'anderes',
            'sonst',
            'sonst.',
            'sonstige',
            'sonstiges',
            'versch.',
            'verschiedenes',
            'unbekannt',
            'weitere',
            'weiteres',

            'objekt',
            'objekte',
            'noch nicht bestimmte objekte',
            'ding',
            'dinge',
            'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa',
            'nichtmünzliches',
            'unbestimmt',
            '-',
            '?',
        ],
        'en' => [
            'other',
            'others',
            'unknown',
            'various',
            '-',
            '?',
        ],
        'hu' => [
            'ism.',
            'ismeretlen',
            '-',
            '?',
        ],
    ];

    /**
     * Checks if an tag name is blacklisted.
     *
     * @param string $lang Input language.
     * @param string $name Input name to check.
     *
     * @return boolean
     */
    public static function tagIsInBlacklist(string $lang, string $name):bool {

        $toCheck = \strtolower($name);

        if (!isset(self::TAG_BLACKLIST[$lang])) {
            return false;
        }

        if (\in_array($toCheck, self::TAG_BLACKLIST[$lang], true)) {
            return true;
        }

        return false;

    }

    /**
     * Checks if a place name is blacklisted in the DB.
     *
     * @param MDMysqli $mysqli DB connection.
     * @param string   $lang   The user's currently used language.
     * @param string   $name   The name entered by the user.
     *
     * @return boolean
     */
    public static function checkPlaceBlacklistedInDb(MDMysqli $mysqli, string $lang, string $name):bool {

        $result = $mysqli->query_by_stmt("SELECT 1
            FROM `" . DATABASENAME_NODA . "`.`orte_blacklist`
            WHERE `language` = ?
                AND `ort_name` = ?
            LIMIT 1", "ss", $lang, $name);

        if ($result->num_rows === 0) {
            $result->close();
            return false;
        }

        $result->close();
        return true;

    }

    /**
     * Checks if an actor name is blacklisted in the DB.
     *
     * @param MDMysqli $mysqli DB connection.
     * @param string   $lang   The user's currently used language.
     * @param string   $name   The name entered by the user.
     *
     * @return boolean
     */
    public static function checkPersinstBlacklistedInDb(MDMysqli $mysqli, string $lang, string $name):bool {

        $result = $mysqli->query_by_stmt("SELECT 1
            FROM `" . DATABASENAME_NODA . "`.`persinst_blacklist`
            WHERE `language` = ?
                AND `persinst_name` = ?
            LIMIT 1", "ss", $lang, $name);

        if ($result->num_rows === 0) {
            $result->close();
            return false;
        }

        $result->close();
        return true;

    }

    /**
     * Checks if a time name is blacklisted in the DB.
     *
     * @param MDMysqli $mysqli DB connection.
     * @param string   $lang   The user's currently used language.
     * @param string   $name   The name entered by the user.
     *
     * @return boolean
     */
    public static function checkTimeBlacklistedInDb(MDMysqli $mysqli, string $lang, string $name):bool {

        $result = $mysqli->query_by_stmt("SELECT 1
            FROM `" . DATABASENAME_NODA . "`.`zeiten_blacklist`
            WHERE `language` = ?
                AND `zeit_name` = ?
            LIMIT 1", "ss", $lang, $name);

        if ($result->num_rows === 0) {
            $result->close();
            return false;
        }

        $result->close();
        return true;

    }
}