from pymongo import MongoClient
from configparser import ConfigParser
import os, sys
import logging

# 로거 인스턴스 가져오기
logger = logging.getLogger('default_logger')
class MongoConfig:
    _instance = None  # 클래스 레벨의 인스턴스 변수
    def __new__(cls):
        if cls._instance is None:
            cls._instance = super(MongoConfig, cls).__new__(cls)
            cls._instance.init_config()
        return cls._instance
    
    def get_config_path(self):
        if getattr(sys, 'frozen', False):
            # PyInstaller가 생성한 임시 폴더에서 실행 중
            application_path = sys._MEIPASS
        else:
            # 일반 Python 환경에서 실행 중
            application_path = os.path.dirname(os.path.abspath(__file__))
        return os.path.join(application_path, 'config.ini')

    def init_config(self):
        config_path = self.get_config_path()
        self.config = ConfigParser()
        self.config.read(config_path)

        # config_path = os.path.join(os.path.dirname(__file__), 'config.ini')
        self.config.read(config_path)
        logger.debug(f"{config_path}")
        self.client = None  # MongoDB 클라이언트 초기화
        self.load_config()
        
    def load_config(self):
        if not self.config.has_section('MongoDB'):
            raise Exception('서버 설정파일이 없습니다.config.ini 파일을 체크하세요.')
        if self.config.has_section('MongoDB'):
            address = self.config.get('MongoDB', 'address', fallback='localhost')
            port = self.config.get('MongoDB', 'port', fallback='27017')
            user = self.config.get('MongoDB', 'user', fallback='')
            password = self.config.get('MongoDB', 'password', fallback='')
            if not all([address, port, user, password]):
                raise Exception('Incomplete MongoDB configuration. Please check your config.ini file.')
            return address, port, user, password


    # def connect(self):
    #     self.client = MongoClient(f'mongodb://{self.user}:{self.password}@{self.address}:{self.port}/')
    #     self.db = self.client['taobao_project']

    @staticmethod
    def get_db():
        return MongoConfig()._instance.db

    def save_config(self, address, port, user, password):
        self.config['MongoDB'] = {
            'address': address,
            'port': port,
            'user': user,
            'password': password
        }
        with open('config.ini', 'w') as configfile:
            self.config.write(configfile)
            
    def try_connect(self, address, port, user, password):
        address, port, user, password = self.load_config()
        # logger.debug(f"{address},{port},{user},{password}")
        if not all([address, port, user, password]):
            logger.debug("Configuration missing. Please check your config.ini file.")
            return False
        try:
            self.client = MongoClient(f'mongodb://{user}:{password}@{address}:{port}/')
            self.db = self.client['taobao_project']  # 여기에서 추가 연결 확인 작업을 수행할 수 있습니다.
            logger.debug("MongoDB 연결 성공.")
            return True
        except Exception as e:
            logger.debug(f"MongoDB 연결 실패: {e}", exc_info=True)
            return False