package server

import (
	"crypto/sha256"
	"encoding/hex"
	"encoding/json"
	"net/http"
)

func jsonOK(w http.ResponseWriter, v interface{}) {
	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(v)
}

func jsonErr(w http.ResponseWriter, code int, msg string) {
	w.Header().Set("Content-Type", "application/json")
	w.WriteHeader(code)
	json.NewEncoder(w).Encode(map[string]string{"error": msg})
}

func sha256Hex(s string) string {
	h := sha256.Sum256([]byte(s))
	return hex.EncodeToString(h[:])
}