package tenant

import (
	"fmt"

	"github.com/google/uuid"
)

// ValidateDispatcherID requires a canonical lowercase UUID v4.
func ValidateDispatcherID(id string) error {
	parsed, err := uuid.Parse(id)
	if err != nil || parsed.Version() != 4 || parsed.Variant() != uuid.RFC4122 || parsed.String() != id {
		return fmt.Errorf("dispatcher_id must be a canonical lowercase UUID v4")
	}
	return nil
}