package server

import (
	"errors"
	"fmt"
	"net"

	"git.loafle.net/commons_go/logging"
)

func NewServerHandler() ServerHandler {
	sh := &ServerHandlers{}
	return sh
}

type ServerHandlers struct {
	// Server name for sending in response headers.
	//
	// Default server name is used if left blank.
	Name string
}

func (sh *ServerHandlers) Init() error {

	return nil
}

func (sh *ServerHandlers) Listen() (net.Listener, error) {
	return nil, errors.New("Server: Handler method[Listen] of Server is not implement")
}

// OnStart invoked when server is stated
// If you override ths method, must call
func (sh *ServerHandlers) OnStart() {
	// no op
}

func (sh *ServerHandlers) OnConnect(conn net.Conn) (net.Conn, error) {
	return conn, nil
}

func (sh *ServerHandlers) Handle(conn net.Conn, stopChan <-chan struct{}, doneChan chan<- struct{}) {
}

func (sh *ServerHandlers) OnError(status int, reason error) {
	logging.Logger().Error(fmt.Sprintf("Server: error status: %d, reason: %v", status, reason))
}

// OnStop invoked when server is stopped
// If you override ths method, must call
func (sh *ServerHandlers) OnStop() {
	// no op
}

func (sh *ServerHandlers) GetName() string {
	return sh.Name
}

func (sh *ServerHandlers) Validate() {

}