import os


def nodedc_env_flag(name):
    return os.environ.get(name, "").strip().lower() in {"1", "true", "yes", "on"}


def nodedc_guest_read_all_issues_enabled():
    return nodedc_env_flag("PLANE_NODEDC_GUEST_READ_ALL_ISSUES") or nodedc_env_flag(
        "PLANE_NODEDC_ACCESS_ENFORCEMENT"
    )


def should_limit_guest_to_own_issues(project):
    return not project.guest_view_all_features and not nodedc_guest_read_all_issues_enabled()