from datetime import datetime, timezone
from typing import Any, Dict, List, Optional, cast

from app.core.supabase import get_supabase


def get_user_by_phone(phone: str) -> Optional[Dict[str, Any]]:
    supabase = get_supabase()
    result = supabase.table("users").select("*").eq("phone", phone).single().execute()
    return cast(Optional[Dict[str, Any]], result.data or None)


def get_user_by_id(user_id: str) -> Optional[Dict[str, Any]]:
    supabase = get_supabase()
    result = supabase.table("users").select("*").eq("id", user_id).single().execute()
    return cast(Optional[Dict[str, Any]], result.data or None)


def user_exists_by_phone(phone: str) -> bool:
    supabase = get_supabase()
    result = supabase.table("users").select("id").eq("phone", phone).execute()
    return bool(result.data)


def create_user(payload: Dict[str, Any]) -> List[Dict[str, Any]]:
    supabase = get_supabase()
    result = supabase.table("users").insert(payload).execute()
    return cast(List[Dict[str, Any]], result.data or [])


def list_users() -> List[Dict[str, Any]]:
    supabase = get_supabase()
    result = supabase.table("users").select("*").order("created_at", desc=True).execute()
    return cast(List[Dict[str, Any]], result.data or [])


def update_user(user_id: str, payload: Dict[str, Any]) -> List[Dict[str, Any]]:
    supabase = get_supabase()
    result = supabase.table("users").update(payload).eq("id", user_id).execute()
    return cast(List[Dict[str, Any]], result.data or [])


def _parse_expires_at(expires_at: Any) -> Optional[datetime]:
    try:
        expires_at_dt = datetime.fromisoformat(str(expires_at).replace("Z", "+00:00"))
    except Exception:
        return None

    if expires_at_dt.tzinfo is None:
        expires_at_dt = expires_at_dt.replace(tzinfo=timezone.utc)
    return expires_at_dt.astimezone(timezone.utc)


def deactivate_user_if_expired(user: Dict[str, Any]) -> bool:
    expires_at = user.get("expires_at")
    if not expires_at:
        return False

    expires_at_dt = _parse_expires_at(expires_at)
    if not expires_at_dt:
        return False

    if datetime.now(timezone.utc) <= expires_at_dt:
        return False

    user_id = user.get("id")
    if user.get("is_active") and user_id:
        update_user(cast(str, user_id), {"is_active": False})

    return True