import logging
from logging.handlers import RotatingFileHandler
from typing import Optional
from helpers.os_environment import resolve_external_file_path
import os
import package

LOG_MAX_SIZE_MB = 20
LOG_BACKUP_COUNT = 4


class LoggingManager:

    logger: logging.Logger

    def __init__(self, name: str, debug: Optional[bool] = None):
        self.logger = logging.getLogger(name)

        logpath: str = resolve_external_file_path("/logs")
        if not os.path.isdir(logpath):
            try:
                # Try creating the directory.
                os.mkdir(logpath)
            except Exception:
                print("Failed to create log directory.")
                return

        filename: str = resolve_external_file_path("/logs/" + name + ".log")

        if not os.path.isfile(filename):
            try:
                # Try creating the file.
                file = open(filename, "x")
                file.close()
            except Exception:
                print("Failed to create log file.")
                return

        # Enable debug by default
        if (debug is None and package.BETA):
            debug = True

        self.logger.setLevel(logging.DEBUG if debug else logging.INFO)
        fh = RotatingFileHandler(
            filename,
            maxBytes=LOG_MAX_SIZE_MB * (1024 ** 2),
            backupCount=LOG_BACKUP_COUNT,
        )
        formatter = logging.Formatter("%(asctime)s  | %(levelname)s | %(message)s")
        fh.setFormatter(formatter)
        # add the handler to the logger
        self.logger.addHandler(fh)
        self.logger.info("** LOGGER STARTED **")

    # def __del__(self):
    # Can't seem to close logger properly
    # self.logger.info("** LOGGER EXITING **")

    @property
    def log(self) -> logging.Logger:
        return self.logger