package middleware

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

func WithValidatedPost[K any](
	fn func(request K, w http.ResponseWriter, r *http.Request),
) func(w http.ResponseWriter, r *http.Request) {
	return func(w http.ResponseWriter, r *http.Request) {
		request := new(K)

		body, err := io.ReadAll(r.Body)
		if err != nil {
			w.WriteHeader(http.StatusBadRequest)
			return
		}

		err = json.Unmarshal(body, request)
		if err != nil {
			w.WriteHeader(http.StatusBadRequest)
			return
		}

		fn(*request, w, r)
	}
}