package api

import (
	"context"
	"net/http"
)

type contextKey string

const authUserKey contextKey = "auth_user"

func withAuthUser(r *http.Request, username string) *http.Request {
	return r.WithContext(context.WithValue(r.Context(), authUserKey, username))
}

// AuthUsername returns the Basic-auth username for the current request, if any.
func AuthUsername(r *http.Request) string {
	if r == nil {
		return ""
	}
	if u, ok := r.Context().Value(authUserKey).(string); ok {
		return u
	}
	return ""
}