import logging
from logging.config import dictConfig
from logging.handlers import TimedRotatingFileHandler
import os
import zipfile
from datetime import datetime, timedelta

class UTF8StreamHandler(logging.StreamHandler):
    def __init__(self, stream=None):
        super().__init__(stream)
        self.setStream(stream)

    def setStream(self, stream):
        super().setStream(stream)
        if hasattr(stream, 'reconfigure'):
            stream.reconfigure(encoding='utf-8')

class FilterByMessage(logging.Filter):
    def filter(self, record):
        # Фильтруем сообщения, содержащие 'Received 1 new updates'
        return 'Received ' not in record.getMessage()

class LogManager:
    def __init__(self, log_dir='logs', retention_days=30):
        self.log_dir = log_dir
        self.retention_days = retention_days
        self.log_files = {
            'flask': os.path.join(self.log_dir, 'flask.log'),
            'flask_error': os.path.join(self.log_dir, 'flask_error.log'),
            'app': os.path.join(self.log_dir, 'app.log'),
            'app_error': os.path.join(self.log_dir, 'app_error.log'),
            'debug': os.path.join(self.log_dir, 'debug.log'),
        }

        # Ensure the log directory exists
        if not os.path.exists(self.log_dir):
            os.makedirs(self.log_dir)

        # Setup logging configuration
        self.setup_logging()

    def setup_logging(self):
        dictConfig({
            'version': 1,
            'disable_existing_loggers': False,
            'formatters': {
                'default': {
                    'format': '[%(asctime)s] %(levelname)s %(module)s: %(message)s',
                },
                'error': {
                    'format': '[%(asctime)s] %(levelname)s %(module)s: %(message)s',
                },
                'werkzeug': {
                    'format': '[%(asctime)s] %(levelname)s %(message)s'
                },
                'debug': {
                    'format': '[%(asctime)s] %(levelname)s %(module)s [%(funcName)s:%(lineno)d]: %(message)s'
                }
            },
            'handlers': {
                'telebot_console': {
                    'class': 'log_manager.UTF8StreamHandler',
                    'stream': 'ext://sys.stdout',
                    'formatter': 'default',
                },
                'flask_console': {
                    'class': 'log_manager.UTF8StreamHandler',
                    'stream': 'ext://sys.stdout',
                    'formatter': 'werkzeug',
                },
                'flask_file': {
                    'class': 'logging.handlers.TimedRotatingFileHandler',
                    'filename': self.log_files['flask'],
                    'when': 'midnight',
                    'backupCount': self.retention_days,
                    'formatter': 'werkzeug',
                    'encoding': 'utf-8',
                },
                'flask_error_file': {
                    'class': 'logging.handlers.TimedRotatingFileHandler',
                    'filename': self.log_files['flask_error'],
                    'when': 'midnight',
                    'backupCount': self.retention_days,
                    'formatter': 'werkzeug',
                    'encoding': 'utf-8',
                    'level': 'ERROR',
                },
                'app_file': {
                    'class': 'logging.handlers.TimedRotatingFileHandler',
                    'filename': self.log_files['app'],
                    'when': 'midnight',
                    'backupCount': self.retention_days,
                    'formatter': 'default',
                    'encoding': 'utf-8',
                },
                'app_error_file': {
                    'class': 'logging.handlers.TimedRotatingFileHandler',
                    'filename': self.log_files['app_error'],
                    'when': 'midnight',
                    'backupCount': self.retention_days,
                    'formatter': 'error',
                    'encoding': 'utf-8',
                    'level': 'ERROR',
                },
                'debug_file': {
                    'class': 'logging.handlers.TimedRotatingFileHandler',
                    'filename': self.log_files['debug'],
                    'when': 'midnight',
                    'backupCount': self.retention_days,
                    'formatter': 'debug',
                    'encoding': 'utf-8',
                    'level': 'DEBUG',
                },
            },
            'loggers': {
                'flask': {
                    'level': 'INFO',
                    'handlers': ['flask_file', 'flask_error_file', 'flask_console'],
                    'propagate': False,
                },
                'telebot': {
                    'level': 'INFO',
                    'handlers': ['app_file', 'app_error_file', 'telebot_console'],
                    'propagate': False,
                },
                'werkzeug': {
                    'level': 'INFO',
                    'handlers': ['flask_file', 'flask_error_file', 'flask_console'],
                    'propagate': False,
                },
                'debug': {
                    'level': 'DEBUG',
                    'handlers': ['debug_file'],
                    'propagate': False,
                },
            }
            # 'root': {
            #     'level': 'DEBUG',
            #     'handlers': ['flask_console', 'telebot_console'],
            # }
        })

    def archive_old_logs(self):
        """Archives old log files and removes logs older than retention_days."""
        # Get yesterday's date
        yesterday_date = (datetime.now() - timedelta(days=1)).strftime('%Y-%m-%d')

        for log_name, log_file in self.log_files.items():
            if os.path.exists(log_file):
                archive_name = f"{log_name}_{yesterday_date}.zip"
                archive_path = os.path.join(self.log_dir, archive_name)

                # Archive the log file
                with zipfile.ZipFile(archive_path, 'w', zipfile.ZIP_DEFLATED) as zipf:
                    zipf.write(log_file, arcname=os.path.basename(log_file))

                # Remove the old log file after archiving
                os.remove(log_file)

        # Clean up old archives
        self.cleanup_old_archives()

    def configure_werkzeug_logging(self):
        """Отключаем встроенный логгер Werkzeug и задаём собственные настройки логирования."""
        werkzeug_logger = logging.getLogger('werkzeug')
        werkzeug_logger.handlers = []  # Удаляем существующие обработчики

        # Добавляем кастомный обработчик для форматирования логов
        handler = TimedRotatingFileHandler(self.log_files['flask'], when='midnight', backupCount=self.retention_days, encoding='utf-8')
        handler.setFormatter(logging.Formatter('[%(asctime)s] %(levelname)s %(message)s'))
        werkzeug_logger.addHandler(handler)

        # Отключаем дублирование логов
        werkzeug_logger.propagate = False

    def cleanup_old_archives(self):
        """Deletes archived logs older than retention_days."""
        now = datetime.now()
        cutoff = now - timedelta(days=self.retention_days)

        for file in os.listdir(self.log_dir):
            if file.endswith('.zip'):
                file_path = os.path.join(self.log_dir, file)
                file_time = datetime.fromtimestamp(os.path.getmtime(file_path))
                if file_time < cutoff:
                    os.remove(file_path)

    def schedule_log_rotation(self):
        """Schedules daily log rotation and archiving."""
        from threading import Timer
        now = datetime.now()
        next_midnight = now.replace(hour=0, minute=0, second=0, microsecond=0) + timedelta(days=1)
        delay = (next_midnight - now).total_seconds()

        Timer(delay, self.rotate_and_archive_logs).start()

    def rotate_and_archive_logs(self):
        """Rotates and archives logs."""
        self.archive_old_logs()
        self.schedule_log_rotation()  # Schedule the next rotation