package socket

import (
	"net"

	"git.loafle.net/commons_go/rpc"
	"git.loafle.net/commons_go/rpc/protocol"
)

type ServletHandlers struct {
}

func (sh *ServletHandlers) ReadRequest(servletCTX rpc.ServletContext, codec protocol.ServerCodec, conn interface{}) (protocol.ServerRequestCodec, error) {
	nConn := conn.(net.Conn)
	requestCodec, err := codec.NewRequest(nConn)

	return requestCodec, err
}

func (sh *ServletHandlers) WriteResponse(servletCTX rpc.ServletContext, conn interface{}, requestCodec protocol.ServerRequestCodec, result interface{}, err error) error {
	nConn := conn.(net.Conn)

	if nil != err {
		if wErr := requestCodec.WriteError(nConn, 500, err); nil != wErr {
			return wErr
		}
	} else {
		if wErr := requestCodec.WriteResponse(nConn, result); nil != wErr {
			return wErr
		}
	}

	return nil
}

func (sh *ServletHandlers) WriteNotification(servletCTX rpc.ServletContext, conn interface{}, codec protocol.ServerCodec, method string, args []interface{}) error {
	nConn := conn.(net.Conn)

	if wErr := codec.WriteNotification(nConn, method, args); nil != wErr {
		return wErr
	}

	return nil
}