package web

import (
	"crypto/x509"
	"encoding/json"
	"encoding/pem"
	"net/http"

	"github.com/lestrrat-go/jwx/v2/jwk"
)

func (h *HttpContext) JsonWebKeySets(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Type", "application/json")
	privatePem, _ := pem.Decode(h.cfg.KeyData)
	parsedKey, _ := x509.ParsePKCS1PrivateKey(privatePem.Bytes)
	key, _ := jwk.FromRaw(parsedKey)
	pubKey, _ := jwk.PublicKeyOf(key)
	pubKey.Set(jwk.KeyIDKey, "X")
	pubKey.Set(jwk.KeyUsageKey, "sig")

	set := jwk.NewSet()
	set.Add(pubKey)
	json.NewEncoder(w).Encode(set)
}