package json

import (
	"encoding/json"

	"git.loafle.net/commons/rpc-go/protocol"
)

// ----------------------------------------------------------------------------
// Codec
// ----------------------------------------------------------------------------

// NewClientCodec returns a new JSON Codec.
func NewClientCodec() protocol.ClientCodec {
	return &ClientCodec{}
}

// ClientCodec creates a ClientCodecRequest to process each request.
type ClientCodec struct {
}

func (cc *ClientCodec) NewRequest(method string, args []interface{}, id interface{}) ([]byte, error) {
	params, err := convertParamsToStringArray(args)
	if nil != err {
		return nil, err
	}

	req := &clientRequest{
		Version: Version,
		Method:  method,
		Params:  params,
		ID:      id,
	}

	return json.Marshal(req)
}

func (cc *ClientCodec) NewResponse(buf []byte) (protocol.ClientResponseCodec, error) {
	return newClientResponseCodec(buf)
}