from django.contrib.auth.models import Permission


def set_permissions(subject, permission_filters):
    if subject is None or permission_filters is None:
        return
    subject.clear()
    for permission_filter in permission_filters:
        if "*" in permission_filter:
            permission_filter_regex = "^" + permission_filter.replace("*", ".*") + "$"
            permissions = Permission.objects.filter(codename__iregex=permission_filter_regex)
            print(
                "  ⚿ Granting",
                permissions.count(),
                "permissions matching '" + permission_filter + "'",
            )
        else:
            permissions = Permission.objects.filter(codename=permission_filter)
            print("  ⚿ Granting permission", permission_filter)

        for permission in permissions:
            subject.add(permission)
