// Irods implements minio.Gateway.
type Irods struct {
	host    string
	port    int
	zone    string
	colPath string
	user    string
	pass    string
}

// NewGatewayLayer initializes GoRODS client and returns iRODS-backed minio.ObjectLayer interface
func (g *Irods) NewGatewayLayer(creds auth.Credentials) (minio.ObjectLayer, error) {

	rodsCon, conErr := gorods.NewConnection(&gorods.ConnectionOptions{
		Type: gorods.UserDefined,

		Host: g.host,
		Port: g.port,
		Zone: g.zone,

		Username: creds.AccessKey,
		Password: creds.SecretKey,
	})
	if conErr != nil {
		return nil, conErr
	}

	col, err := rodsCon.Collection(gorods.CollectionOptions{
		Path: g.colPath,
	})
	if err != nil {
		return nil, err
	}

	return &irodsObjects{
		col: col,
	}, nil
}