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#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
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"""Kubernetes V1SecurityContext ↔ plain dict helpers for CRD pod specs."""

from typing import Any, Dict, Optional


def build_security_context_from_dict(
    security_context_dict: Dict[str, Any],
) -> Optional[Any]:
    """
    Convert a security context dict to ``V1SecurityContext``.

    Empty dict returns None.
    """
    if not security_context_dict:
        return None

    from kubernetes.client import V1SecurityContext, V1Capabilities

    capabilities = None
    if "capabilities" in security_context_dict:
        caps_dict = security_context_dict["capabilities"]
        add_caps = caps_dict.get("add", [])
        drop_caps = caps_dict.get("drop", [])
        capabilities = V1Capabilities(
            add=add_caps if add_caps else None,
            drop=drop_caps if drop_caps else None,
        )

    privileged = security_context_dict.get("privileged")

    if capabilities is None and privileged is None:
        return None

    return V1SecurityContext(
        capabilities=capabilities,
        privileged=privileged,
    )


def serialize_security_context_to_dict(
    security_context: Optional[Any],
) -> Optional[Dict[str, Any]]:
    """Serialize ``V1SecurityContext`` to a CRD-friendly dict."""
    if not security_context:
        return None

    result: Dict[str, Any] = {}

    if security_context.capabilities:
        caps: Dict[str, Any] = {}
        if security_context.capabilities.add:
            caps["add"] = security_context.capabilities.add
        if security_context.capabilities.drop:
            caps["drop"] = security_context.capabilities.drop
        if caps:
            result["capabilities"] = caps

    if security_context.privileged is not None:
        result["privileged"] = security_context.privileged

    if getattr(security_context, "seccomp_profile", None) is not None:
        sp = security_context.seccomp_profile
        profile_dict: Dict[str, Any] = {"type": sp.type}
        if getattr(sp, "localhost_profile", None) is not None:
            profile_dict["localhostProfile"] = sp.localhost_profile
        result["seccompProfile"] = profile_dict

    if getattr(security_context, "app_armor_profile", None) is not None:
        ap = security_context.app_armor_profile
        profile_dict = {"type": ap.type}
        if getattr(ap, "localhost_profile", None) is not None:
            profile_dict["localhostProfile"] = ap.localhost_profile
        result["appArmorProfile"] = profile_dict

    return result if result else None