package fasthttp

import (
	"io"

	"git.loafle.net/commons_go/logging"
	"git.loafle.net/commons_go/rpc/client"
	"git.loafle.net/commons_go/rpc/protocol"
	cwfc "git.loafle.net/commons_go/websocket_fasthttp/client"
	"git.loafle.net/commons_go/websocket_fasthttp/websocket"
)

func New(socketBuilder cwfc.SocketBuilder) client.ClientReadWriteCloseHandler {
	return &ClientReadWriteCloseHandlers{
		SocketBuilder: socketBuilder,
	}
}

type ClientReadWriteCloseHandlers struct {
	client.ClientReadWriteCloseHandlers

	SocketBuilder cwfc.SocketBuilder
}

func (crwch *ClientReadWriteCloseHandlers) Connect(clientCTX client.ClientContext) (interface{}, error) {

	return cwfc.NewSocket(crwch.SocketBuilder, clientCTX)
}

func (crwch *ClientReadWriteCloseHandlers) ReadResponse(clientCTX client.ClientContext, codec protocol.ClientCodec, conn interface{}) (protocol.ClientResponseCodec, error) {
	soc := conn.(cwfc.Socket)

	crwch.ReadMtx.RLock()
	_, r, err := soc.NextReader()
	resCodec, err := codec.NewResponse(r)
	crwch.ReadMtx.RUnlock()

	return resCodec, err
}

func (crwch *ClientReadWriteCloseHandlers) WriteRequest(clientCTX client.ClientContext, codec protocol.ClientCodec, conn interface{}, method string, params []interface{}, id interface{}) error {
	var (
		wc   io.WriteCloser
		wErr error
	)
	soc := conn.(cwfc.Socket)

	crwch.WriteMtx.RLock()
	wc, wErr = soc.NextWriter(websocket.TextMessage)
	if nil != wErr {
		crwch.WriteMtx.RUnlock()
		return wErr
	}
	defer func() {
		wc.Close()
	}()

	wErr = codec.WriteRequest(wc, method, params, id)

	crwch.WriteMtx.RUnlock()

	return wErr
}

func (crwch *ClientReadWriteCloseHandlers) Disconnect(clientCTX client.ClientContext, conn interface{}) {
	soc := conn.(cwfc.Socket)
	soc.Close()
}

func (crwch *ClientReadWriteCloseHandlers) Validate() {
	crwch.ClientReadWriteCloseHandlers.Validate()

	if nil == crwch.SocketBuilder {
		logging.Logger().Panicf("RPC Client: SocketBuilder must be specified")
	}

}