package myth

import (
	"encoding/json"
	"encoding/xml"
	"net/http"
)

func header(w http.ResponseWriter, contentType string) {
	w.Header().Set(`Content-Type`, contentType)
	w.Header().Set(`X-Powered-By`, LibName+`/`+LibVersion)
	w.WriteHeader(http.StatusOK)
}

// SetHeader set http response header
func SetHeader(w http.ResponseWriter, key, value string) {
	w.Header().Set(key, value)
}

// Redirect redirect
func Redirect(w http.ResponseWriter, r *http.Request, url string) {
	//w.Header().Set(`Location`, url)
	//w.WriteHeader(http.StatusFound)

	http.Redirect(w, r, url, http.StatusFound)
}

// WriteJSON response JSON data.
func WriteJSON(w http.ResponseWriter, response interface{}) error {
	header(w, `application/json; charset=utf-8`)
	return json.NewEncoder(w).Encode(response)
}

// WriteXML response XML data.
func WriteXML(w http.ResponseWriter, response interface{}) error {
	header(w, `application/xml; charset=utf-8`)
	return xml.NewEncoder(w).Encode(response)
}

// WriteBytes response bytes
func WriteBytes(w http.ResponseWriter, response interface{}) error {
	header(w, `text/html; charset=utf-8`)
	_, err := w.Write(response.([]byte))
	return err
}