from hub import methods, Global

import threading
import time
import json


class MessageListener(object):
    """
    """

    @staticmethod
    def decorate_method(client, userdata, message):
        """消息处理方法"""
        file_name = methods.now_string('%Y-%m-%d.log')
        log_file_path = f"/home/server/logs/{file_name}"
        log_dict = json.loads(message.payload)
        # methods.debug_log(f"MessageListener.20", f"#log_dict: {log_dict}")

        log_list = list()
        for i in range(1, 5):
            v = str(log_dict.get(str(i)))
            log_list.append(v)
        methods.write_text(log_file_path, '|'.join(log_list) + '\n', 'a')
        methods.debug_log(f"MessageListener.24", f"#message.payload: {json.loads(message.payload)}")

    @classmethod
    def start_check_loop(cls):

        # --- check ---
        save_dir = f"/home/server/logs"
        if not methods.is_dir(save_dir):
            out = methods.run_command(f'mkdir -p {save_dir}', callback=True)
            methods.debug_log('MessageListener.33', f"#out: {out}")

        Global.emqx.start_subscribe_loop(
            decorate_method=MessageListener.decorate_method,
            subscribe_topic='bg/log'
        )

    @classmethod
    def run_background(cls, background_is=True):
        """"""
        p1 = threading.Thread(target=cls.start_check_loop)
        p1.start()


if __name__ == '__main__':
    # --- test ---
    MessageListener.run_background()