package middleware

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

// Recovery middleware to catch panics, log them, and return a 500 error
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 {
					// Log the stack trace
					log.Printf("PANIC: %v\n%s", err, debug.Stack())
					
					// Return a 500 Internal Server Error response
					w.WriteHeader(http.StatusInternalServerError)
					w.Write([]byte("Internal Server Error"))
				}
			}()
			
			next.ServeHTTP(w, r)
		})
	}
}