package main

import (
	"net/http"

	goaltcha "github.com/k42-software/go-altcha"
	altchahttp "github.com/k42-software/go-altcha/http"
)

func serveAltchaJS(w http.ResponseWriter, r *http.Request) {
	altchahttp.ServeJavascript(w, r)
}

func serveAltchaChallenge(w http.ResponseWriter, r *http.Request) {
	challenge := goaltcha.NewChallenge()
	w.Header().Set("Content-Type", "application/json")
	w.Header().Set("Cache-Control", "private, no-cache, no-store, must-revalidate")
	_, _ = w.Write([]byte(challenge.Encode()))
}

func validateAltcha(r *http.Request) bool {
	encoded := r.PostFormValue("altcha")
	if encoded == "" {
		return false
	}
	return goaltcha.ValidateResponse(encoded, true)
}