from __future__ import annotations

from .shared import *

def _normalize_review_content(raw: dict[str, Any] | None) -> dict[str, Any]:
    payload = dict(raw or {})
    summary = str(payload.get("summary") or "").strip()
    goals = payload.get("goals")
    if not isinstance(goals, list):
        goals = []
    what_went_well = payload.get("what_went_well")
    if not isinstance(what_went_well, list):
        what_went_well = []
    root_causes = payload.get("root_causes")
    if not isinstance(root_causes, list):
        root_causes = []
    improvements = payload.get("improvements")
    if not isinstance(improvements, list):
        improvements = []

    normalized_improvements: list[dict[str, Any]] = []
    def _optional_int(value: Any) -> int | None:
        if value in (None, ""):
            return None
        try:
            return int(value)
        except (TypeError, ValueError):
            return None

    for idx, item in enumerate(improvements):
        if isinstance(item, str):
            title = item.strip()
            if not title:
                continue
            normalized_improvements.append(
                {
                    "id": f"imp-{idx+1}",
                    "title": title,
                    "status": "pending",
                    "owner_id": None,
                    "due_date": None,
                    "task_id": None,
                }
            )
            continue
        if not isinstance(item, dict):
            continue
        title = str(item.get("title") or "").strip()
        if not title:
            continue
        normalized_improvements.append(
            {
                "id": str(item.get("id") or f"imp-{idx+1}"),
                "title": title,
                "status": str(item.get("status") or "pending"),
                "owner_id": _optional_int(item.get("owner_id")),
                "due_date": item.get("due_date"),
                "task_id": _optional_int(item.get("task_id")),
                "description": str(item.get("description") or "").strip() or None,
            }
        )

    return {
        "summary": summary,
        "goals": [str(x).strip() for x in goals if str(x).strip()],
        "what_went_well": [str(x).strip() for x in what_went_well if str(x).strip()],
        "root_causes": [str(x).strip() for x in root_causes if str(x).strip()],
        "improvements": normalized_improvements,
        "last_updated_at": now_cn_aware().isoformat(),
    }