package main

import (
	"fmt"
	"regexp"

	"github.com/google/uuid"
)

var (
	// nodeNameRegex validates node names (alphanumeric, dots, underscores, hyphens, 1-64 chars)
	nodeNameRegex = regexp.MustCompile(`^[a-zA-Z0-9._-]{1,64}$`)
)

// sanitizeCorrelationID validates and sanitizes a correlation ID
// Returns a valid UUID, generating a new one if input is missing or invalid
func sanitizeCorrelationID(id string) string {
	if id == "" {
		return uuid.NewString()
	}
	if _, err := uuid.Parse(id); err != nil {
		return uuid.NewString()
	}
	return id
}

// validateNodeName checks if a node name is in valid format
func validateNodeName(name string) error {
	if !nodeNameRegex.MatchString(name) {
		return fmt.Errorf("invalid node name")
	}
	return nil
}