package protocol

import (
	"io"
)

// ServerCodec creates a ServerRequestCodec to process each request.
type ServerCodec interface {
	NewRequest(r io.Reader) (ServerRequestCodec, error)
	WriteNotification(w io.Writer, method string, args []interface{}) error

	NewRequestB(buf []byte) (ServerRequestCodec, error)
	NewNotificationB(method string, args []interface{}) ([]byte, error)
}

// ServerRequestCodec decodes a request and encodes a response using a specific
// serialization scheme.
type ServerRequestCodec interface {
	RegistryCodec

	NewResponseB(reply interface{}) ([]byte, error)
	NewErrorB(status int, err error) ([]byte, error)

	WriteResponse(w io.Writer, reply interface{}) error
	WriteError(w io.Writer, status int, err error) error
}