// Copyright 2014 Claudemiro Alves Feitosa Neto. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package main

import (
	_ "expvar"
	"net/http"
	"os"
	"strings"

	"github.com/goji/httpauth"
	"github.com/gorilla/handlers"
	"github.com/gorilla/mux"
)

// NewRouter is a function that returns a new configured Router
// It add the necessary middlewares
func NewRouter() *mux.Router {
	router := mux.NewRouter().StrictSlash(true)

	if Conf.Expvar {
		if len(strings.TrimSpace(Conf.User)) == 0 || len(strings.TrimSpace(Conf.Password)) == 0 {
			panic("Your are exporting debug variables and you are not defining an User and a Password")
		}

		router.Handle("/debug/vars", httpauth.SimpleBasicAuth(Conf.User, Conf.Password)(http.DefaultServeMux))
	}

	for _, route := range routes {
		var handler http.Handler

		handler = route.HandlerFunc

		if route.RequiresRestAuth {
			handler = RestAuthenticationHandler(handler)
			handler = RestCheckAppDisabledHandler(handler)
		}

		handler = handlers.CombinedLoggingHandler(os.Stdout, handler)

		router.Methods(route.Method).Path(route.Pattern).Name(route.Name).Handler(handler)
	}

	return router
}