"""数据库连接（只读告警数据）。"""

import pymysql

from config import (
    DB_CONNECT_TIMEOUT,
    DB_HOST,
    DB_NAME,
    DB_PASSWORD,
    DB_PORT,
    DB_USER,
)


def connect():
    return pymysql.connect(
        host=DB_HOST,
        port=DB_PORT,
        user=DB_USER,
        password=DB_PASSWORD,
        database=DB_NAME,
        charset="utf8mb4",
        cursorclass=pymysql.cursors.DictCursor,
        connect_timeout=DB_CONNECT_TIMEOUT,
        read_timeout=600,
        autocommit=True,
    )