package api

import (
	"encoding/json"
	"net/http"
	"time"
)

func jsonMiddleware(next http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("Content-Type", "application/json")
		next.ServeHTTP(w, r)
	})
}

func decodeJSON(r *http.Request, dst any) error {
	defer r.Body.Close()
	dec := json.NewDecoder(r.Body)
	dec.DisallowUnknownFields()
	return dec.Decode(dst)
}

func writeJSON(w http.ResponseWriter, status int, value any) {
	w.WriteHeader(status)
	_ = json.NewEncoder(w).Encode(value)
}

func writeError(w http.ResponseWriter, status int, msg string) {
	writeJSON(w, status, map[string]string{"error": msg})
}

func nowUTC() time.Time {
	return time.Now().UTC().Truncate(time.Second)
}