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# database/users.py
import logging
from database.connection import get_conn

logger = logging.getLogger(__name__)


def register_user(
    user_id: int,
    username: str,
    first_name: str,
    last_name: str,
    referred_by: int | None = None,
) -> bool:
    """
    تسجيل المستخدم إذا لم يكن موجوداً.
    لا يُعدِّل بيانات المستخدم الحالي إن كان مسجلاً.
    يُعيد True إذا كان مستخدماً جديداً.
    """
    conn = get_conn()
    try:
        c = conn.cursor()
        if referred_by and referred_by == user_id:
            referred_by = None
        c.execute("""
            INSERT OR IGNORE INTO users
                (user_id, username, first_name, last_name, referred_by)
            VALUES (?, ?, ?, ?, ?)
        """, (user_id, username or "", first_name or "", last_name or "", referred_by))
        conn.commit()
        is_new = c.rowcount > 0
        if is_new:
            logger.info(f"[Users] مستخدم جديد: {user_id} (@{username})")
        return is_new
    except Exception as e:
        logger.error(f"register_user({user_id}): {e}", exc_info=True)
        return False
    finally:
        conn.close()


def get_user(user_id: int) -> dict | None:
    conn = get_conn()
    try:
        c = conn.cursor()
        c.execute("SELECT * FROM users WHERE user_id=?", (user_id,))
        row = c.fetchone()
        return dict(row) if row else None
    except Exception as e:
        logger.error(f"get_user({user_id}): {e}", exc_info=True)
        return None
    finally:
        conn.close()


def update_username(user_id: int, username: str, first_name: str, last_name: str) -> None:
    """تحديث بيانات المستخدم عند كل /start."""
    conn = get_conn()
    try:
        conn.execute("""
            UPDATE users SET username=?, first_name=?, last_name=?
            WHERE user_id=?
        """, (username or "", first_name or "", last_name or "", user_id))
        conn.commit()
    except Exception as e:
        logger.error(f"update_username({user_id}): {e}", exc_info=True)
    finally:
        conn.close()


def increment_search_count(user_id: int, last_game: str = "") -> None:
    conn = get_conn()
    try:
        if last_game:
            conn.execute("""
                UPDATE users
                SET search_count = search_count + 1, last_game = ?
                WHERE user_id = ?
            """, (last_game[:100], user_id))
        else:
            conn.execute("""
                UPDATE users
                SET search_count = search_count + 1
                WHERE user_id = ?
            """, (user_id,))
        conn.commit()
    except Exception as e:
        logger.error(f"increment_search_count({user_id}): {e}", exc_info=True)
    finally:
        conn.close()


def get_total_users() -> int:
    conn = get_conn()
    try:
        return conn.execute("SELECT COUNT(*) FROM users").fetchone()[0]
    except Exception:
        return 0
    finally:
        conn.close()


def is_banned(user_id: int) -> bool:
    conn = get_conn()
    try:
        c = conn.cursor()
        c.execute("SELECT is_banned FROM users WHERE user_id=?", (user_id,))
        row = c.fetchone()
        return bool(row and row[0])
    except Exception:
        return False
    finally:
        conn.close()