package main

import (
	"fmt"
	"net/http"

	"goji.io"
	"goji.io/pat"
	"golang.org/x/net/context"
)

func hello(ctx context.Context, w http.ResponseWriter, r *http.Request) {
	name := pat.Param(ctx, "name")
	fmt.Fprintf(w, "Hello, %s!", name)
}

var routes = []string{
	"/", "/hello", "/hello/:name",
}

// Middleware returns a http.Handler that does the actual permission setting.
func middleware(h goji.Handler) goji.Handler {
	fn := func(ctx context.Context, w http.ResponseWriter, r *http.Request) {
		for _, resource := range routes {
			p := pat.New(resource)

			if p.Match(ctx, r) != nil {
				fmt.Println("match!")
				break
			} else {
				fmt.Println("no match..")
			}
		}

		h.ServeHTTPC(ctx, w, r)
	}

	return goji.HandlerFunc(fn)
}

func main() {
	mux := goji.NewMux()
	mux.HandleFuncC(pat.Get("/hello/:name"), hello)
	mux.UseC(middleware)

	http.ListenAndServe("localhost:8000", mux)
}