package middleware

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

	"git.coopcloud.tech/wiki-cafe/member-console/internal/logging"
)

// Recovery middleware catches panics and logs them with structured logging
func Recovery() Middleware {
	return func(next http.Handler) http.Handler {
		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
			defer func() {
				if err := recover(); err != nil {
					// Get logger from context
					logger := logging.FromContext(r.Context())

					// Get request ID from context
					requestID := GetRequestID(r.Context())

					// Log the panic with stack trace
					logger.Error("panic recovered",
						slog.String("request_id", requestID),
						slog.String("method", r.Method),
						slog.String("path", r.URL.Path),
						slog.Any("error", err),
						slog.String("stack", string(debug.Stack())),
					)

					// Return 500 Internal Server Error to the client
					http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
				}
			}()

			next.ServeHTTP(w, r)
		})
	}
}