package main

import (
	"fmt"
	"log"
	"net/http"

	"github.com/google/uuid"
)

func createCookie(w http.ResponseWriter, r *http.Request) {
	uuid := uuid.New().String()
	cookie := &http.Cookie{
		Name:  "keks",
		Value: uuid,
	}
	http.SetCookie(w, cookie)
	fmt.Fprintf(w, "Cookie gesetzt: keks = %s\n", uuid)
}

func showCookie(w http.ResponseWriter, r *http.Request) {
	cookie, err := r.Cookie("keks")
	if err != nil {
		http.Error(w, err.Error(), http.StatusBadRequest)
		return
	}
	fmt.Fprintf(w, "Cookie gefunden: keks = %s\n", cookie.Value)
}

func deleteCookie(w http.ResponseWriter, r *http.Request) {
	cookie, err := r.Cookie("keks")
	if err != nil {
		http.Error(w, err.Error(), http.StatusBadRequest)
		return
	}
	cookie.MaxAge = -1
	http.SetCookie(w, cookie)
	fmt.Fprintf(w, "Cookie gelöscht.\n")
}

func main() {
	http.HandleFunc("/create-cookie", createCookie)
	http.HandleFunc("/show-cookie", showCookie)
	http.HandleFunc("/delete-cookie", deleteCookie)
	log.Fatal(http.ListenAndServe("localhost:8080", nil))
}