import logging
from fastapi import HTTPException
from .. import database

logger = logging.getLogger(__name__)

def search_articles(query: str, limit: int = 20):
    """Search articles in NOM_ARTICOLE by codmat or denumire."""
    if database.pool is None:
        raise HTTPException(status_code=503, detail="Oracle unavailable")

    if not query or len(query) < 2:
        return []

    with database.pool.acquire() as conn:
        with conn.cursor() as cur:
            cur.execute("""
                SELECT id_articol, codmat, denumire, um
                FROM nom_articole
                WHERE (UPPER(codmat) LIKE UPPER(:q) || '%'
                    OR UPPER(denumire) LIKE '%' || UPPER(:q) || '%')
                AND sters = 0 AND inactiv = 0
                AND ROWNUM <= :lim
                ORDER BY CASE WHEN UPPER(codmat) LIKE UPPER(:q) || '%' THEN 0 ELSE 1 END, codmat
            """, {"q": query, "lim": limit})

            columns = [col[0].lower() for col in cur.description]
            return [dict(zip(columns, row)) for row in cur.fetchall()]