module.exports = Self => {
    Self.remoteMethod('listPackaging', {
        description: 'Returns all packages including item',
        accessType: 'READ',
        accepts: [{
            arg: 'filter',
            type: 'Object',
            required: false,
            description: 'Filter defining where and paginated data',
            http: {source: 'query'}
        }],
        returns: {
            type: ["Object"],
            root: true
        },
        http: {
            path: `/listPackaging`,
            verb: 'get'
        }
    });

    Self.listPackaging = async filter => {
        let where = '';
        let limit = '';
        let order = '';
        let params;

        if (filter) {
            let connector = Self.dataSource.connector;
            if (filter.where) {
                if (filter.where.packagingFk) {
                    where = 'WHERE p.id = ?';
                    params = [filter.where.packagingFk];
                } else {
                    let search = filter.where.name.regexp;
                    where = 'WHERE i.id REGEXP ? OR i.name REGEXP ?';
                    params = [search, search];
                }
            }

            limit = connector._buildLimit(null, filter.limit, filter.offset);
            order = connector.buildOrderBy('Item', filter.order);
        }

        let query = `SELECT i.name, i.id, p.id packagingFk FROM
            item i JOIN packaging p ON i.id = p.itemFk ${where} ${order} ${limit}`;
        return await Self.rawSql(query, params);
    };
};