# mysql_writer.py
import mysql.connector
from mysql.connector import Error
import threading

# =============================
# CONFIGURATION DE LA BD
# =============================
 
DB_CONFIG = {
    "host": "serveur-prod.progiweb.net",
    "user": "ms1reader_bd",             # ajuste au besoin
    "password": "X~=v]lg-l]4,T2FF",             # ajuste au besoin
    "database": "ms1reader_centrale"
}

TABLE_NAME = "reader_lectures"
# =============================
# CONNEXION PERSISTANTE
# =============================
_conn = None
_lock = threading.Lock()


def _get_connection():
    """Retourne une connexion MySQL persistante, reconnecte si nécessaire."""
    global _conn
    if _conn is None or not _conn.is_connected():
        _conn = mysql.connector.connect(**DB_CONFIG)
    return _conn


def write_chrinfo(row: dict):
  

    insert_sql = f"""
    INSERT IGNORE INTO `{TABLE_NAME}` (
        chrinfo_feed_ip,
        chrinfo_feed_port,
        chrinfo_event_id,
        chrinfo_event_name,
        chrinfo_event_desc,
        chrinfo_type_transaction,
        chrinfo_format_id,
        chrinfo_sequence,
        chrinfo_location,
        chrinfo_tag,
        chrinfo_time,
        chrinfo_time_iso,
        chrinfo_gatornumber,
        chrinfo_readerid,
        chrinfo_lap,
        chrinfo_received_at_iso
    ) VALUES (
        %(chrinfo_feed_ip)s,
        %(chrinfo_feed_port)s,
        %(chrinfo_event_id)s,
        %(chrinfo_event_name)s,
        %(chrinfo_event_desc)s,
        %(chrinfo_type_transaction)s,
        %(chrinfo_format_id)s,
        %(chrinfo_sequence)s,
        %(chrinfo_location)s,
        %(chrinfo_tag)s,
        %(chrinfo_time)s,
        %(chrinfo_time_iso)s,
        %(chrinfo_gatornumber)s,
        %(chrinfo_readerid)s,
        %(chrinfo_lap)s,
        %(chrinfo_received_at_iso)s
    )
"""
 

    with _lock:
        cursor = None
        try:
            conn = _get_connection()
            cursor = conn.cursor()
 

            # 2) Pas de doublon → on insère
            cursor.execute(insert_sql, row)
            conn.commit()

        except Error as e:
          print(f"❌ Erreur MySQL: {e}")
        except Exception as e:
           print(f"❌ Erreur write_chrinfo: {e}")
        finally:
            if cursor is not None:
                cursor.close()




def write_log(log_type: str, message: str):
    """
    Écrit une ligne dans la table log.
    Aucun impact sur la logique existante.
    """
    sql = """
        INSERT INTO log (log_created_at, log_type, log_message)
        VALUES (NOW(), %s, %s)
    """
    print( sql)
      
    with _lock:
        cursor = None
        try:
            conn = _get_connection()
            cursor = conn.cursor()
            cursor.execute(sql, (log_type, message))
            conn.commit()
        except Exception as e:
            print(f"❌ Erreur MySQL (write_log): {e}")
        finally:
            if cursor:
                cursor.close()