package service

import (
	"io"
	"net/http"
)

func newWriteFlusher(w http.ResponseWriter) io.Writer {
	return writeFlusher{w.(interface {
		io.Writer
		http.Flusher
	})}
}

type writeFlusher struct {
	wf interface {
		io.Writer
		http.Flusher
	}
}

func (w writeFlusher) Write(p []byte) (int, error) {
	defer w.wf.Flush()
	return w.wf.Write(p)
}