package main

import (
	"fmt"
	"net/http"
	"strconv"
)

func GetAndSetCookies(writer http.ResponseWriter, request *http.Request) {
	counterVal := 1

	counterCookie, err := request.Cookie("counter")
	if err == nil {
		counterVal, _ = strconv.Atoi(counterCookie.Value)
		counterVal++
	}
	http.SetCookie(writer, &http.Cookie{
		Name:  "counter",
		Value: strconv.Itoa(counterVal),
	})
	if len(request.Cookies()) == 0 {
		fmt.Fprintln(writer, "Request contains no cookies")
	} else {
		for _, cookie := range request.Cookies() {
			fmt.Fprintf(writer, "Cookie Name: %s , Value: %s \n", cookie.Name, cookie.Value)
		}
	}
	fmt.Fprintf(writer, "Total number of cookies: %d  counter Value: %v", len(request.Cookies()), counterVal)
}

func init() {
	http.HandleFunc("/cookies", GetAndSetCookies)
}