config.py

import json
from pathlib import Path
# from utils.utils import SingletonMeta


# class Config(metaclass=SingletonMeta):
class Config:
    def __init__(self, file_path=None):
        if hasattr(self, "initialized"):
            return
        self.initialized = True
        if file_path is None:
            return
        self.file_path = Path(file_path)
        if not self.file_path.exists():
            self.init_cfg()
        self.read_cfg()
        self.load_cfg(self.__cfg)
        self.check_cfg()
        self.sites = {}

    def read_cfg(self):
        with open("config.json", "r", encoding="utf-8") as f:
            self.__cfg = json.loads(f.read())
        return self.__cfg

    def load_cfg(self, cfg):
        for key, value in cfg.items():
            if isinstance(value, dict):
                setattr(self, key, self.load_cfg(value))
            elif isinstance(value, list):
                setattr(
                    self,
                    key,
                    [
                        self.load_cfg(item) if isinstance(item, dict) else item
                        for item in value
                    ],
                )
            else:
                setattr(self, key, value)
        return self

    def check_cfg(self):
        DATA_PATH = Path(self.PATHS.DATA_PATH)
        LOGS_PATH = Path(self.PATHS.LOGS_PATH)
        NOVELS_PATH = Path(self.PATHS.NOVELS_PATH)
        POSTERS_PATH = Path(self.PATHS.POSTERS_PATH)
        DB_PATH = Path(self.PATHS.DB_PATH)
        self.PATHS.DATA_PATH = DATA_PATH
        self.PATHS.LOGS_PATH = DATA_PATH / LOGS_PATH
        self.PATHS.NOVELS_PATH = DATA_PATH / NOVELS_PATH
        self.PATHS.POSTERS_PATH = DATA_PATH / POSTERS_PATH
        self.PATHS.DB_PATH = DB_PATH

        self.PATHS.DATA_PATH.mkdir(exist_ok=True)
        self.PATHS.LOGS_PATH.mkdir(exist_ok=True)
        self.PATHS.NOVELS_PATH.mkdir(exist_ok=True)
        self.PATHS.POSTERS_PATH.mkdir(exist_ok=True)

    def init_cfg(self):
        cfg_dict = {
            "PATHS": {
                "DATA_PATH": "./data",
                "NOVELS_PATH": "novels",
                "LOGS_PATH": "logs",
                "POSTERS_PATH": "posters",
                "DB_PATH": "cache.db",
            },
            "MAX_WORKERS": 7,
            "SLEEP_TIME": 3,
        }
        with open(self.file_path, "w", encoding="utf-8") as f:
            f.write(json.dumps(cfg_dict, indent=4))


if __name__ == "__main__":
    cfg = Config("config.json")
    cfg1 = Config("config.json")
    cfg.sites.append("test")
    print(cfg.sites)
    print(cfg1.sites)