// SPDX-License-Identifier: AGPL-3.0-or-later

package middleware

import (
	"log/slog"
	"net/http"
	"runtime/debug"
)

// Recovery catches panics in HTTP handlers and returns a 500 error
// instead of crashing the server.
func Recovery(next http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		defer func() {
			if err := recover(); err != nil {
				slog.Error("panic recovered",
					"error", err,
					"path", r.URL.Path,
					"stack", string(debug.Stack()),
				)
				http.Error(w, "Internal Server Error", http.StatusInternalServerError)
			}
		}()
		next.ServeHTTP(w, r)
	})
}