import datetime import os import traceback from collections import Callable from string import Template from sh_edraft.hosting.application_host import ApplicationHost from sh_edraft.logging.base.logger_base import LoggerBase from sh_edraft.logging.model import LoggingSettings from sh_edraft.logging.model.logging_level import LoggingLevel from sh_edraft.time.model import TimeFormatSettings from sh_edraft.utils.console import Console class Logger(LoggerBase): def __init__(self, logging_settings: LoggingSettings, time_format: TimeFormatSettings, app_host: ApplicationHost): LoggerBase.__init__(self, logging_settings, time_format) self._app_host: ApplicationHost = app_host self._log = Template(self._log_settings.filename).substitute( date_time_now=self._app_host.date_time_now.strftime(self._time_format_settings.date_time_format), start_time=self._app_host.start_time.strftime(self._time_format_settings.date_time_log_format) ) self._path = self._log_settings.path self._level = self._log_settings.level self._console = self._log_settings.console def _get_datetime_now(self) -> str: try: return datetime.datetime.now().strftime(self._time_format_settings.date_time_format) except Exception as e: self.error(__name__, 'Cannot get time', ex=e) def _get_date(self) -> str: try: return datetime.datetime.now().strftime(self._time_format_settings.date_format) except Exception as e: self.error(__name__, 'Cannot get date', ex=e) def create(self) -> None: """ path """ try: # check if log file path exists if not os.path.exists(self._path): os.mkdir(self._path) except Exception as e: self.fatal(__name__, 'Cannot create log dir', ex=e) """ create new log file """ try: # open log file, create if not exists path = f'{self._path}{self._log}' f = open(path, "w+") Console.write_line(f'[{__name__}]: Using log file: {path}') f.close() except Exception as e: self.fatal(__name__, 'Cannot open log file', ex=e) def _append_log(self, string): try: # open log file and append always with open(self._path + self._log, "a+", encoding="utf-8") as f: f.write(string + '\n') f.close() except Exception as e: self.error(__name__, f'Cannot append log file, message: {string}', ex=e) def _get_string(self, name: str, level: LoggingLevel, message: str) -> str: log_level = level.name return f'<{self._get_datetime_now()}> [ {log_level} ] [ {name} ]: {message}' def header(self, string: str): # append log and print message self._append_log(string) Console.write_line(string, 'white') def trace(self, name: str, message: str): output = self._get_string(name, LoggingLevel.TRACE, message) # check if message can be written to log if self._level.value >= LoggingLevel.TRACE.value: self._append_log(output) # check if message can be shown in console if self._console.value >= LoggingLevel.TRACE.value: Console.write_line(output, 'green') def debug(self, name: str, message: str): output = self._get_string(name, LoggingLevel.DEBUG, message) # check if message can be written to log if self._level.value >= LoggingLevel.DEBUG.value: self._append_log(output) # check if message can be shown in console if self._console.value >= LoggingLevel.DEBUG.value: Console.write_line(output, 'green') def info(self, name: str, message: str): output = self._get_string(name, LoggingLevel.INFO, message) # check if message can be written to log if self._level.value >= LoggingLevel.INFO.value: self._append_log(output) # check if message can be shown in console if self._console.value >= LoggingLevel.INFO.value: Console.write_line(output, 'green') def warn(self, name: str, message: str): output = self._get_string(name, LoggingLevel.WARN, message) # check if message can be written to log if self._level.value >= LoggingLevel.WARN.value: self._append_log(output) # check if message can be shown in console if self._console.value >= LoggingLevel.WARN.value: Console.write_line(output, 'yellow') def error(self, name: str, message: str, ex: Exception = None): output = '' if ex is not None: tb = traceback.format_exc() self.error(name, message) output = self._get_string(name, LoggingLevel.ERROR, f'{ex} -> {tb}') else: output = self._get_string(name, LoggingLevel.ERROR, message) # check if message can be written to log if self._level.value >= LoggingLevel.ERROR.value: self._append_log(output) # check if message can be shown in console if self._console.value >= LoggingLevel.ERROR.value: Console.write_line(output, 'red') def fatal(self, name: str, message: str, ex: Exception = None): output = '' if ex is not None: tb = traceback.format_exc() self.error(name, message) output = self._get_string(name, LoggingLevel.ERROR, f'{ex} -> {tb}') else: output = self._get_string(name, LoggingLevel.ERROR, message) # check if message can be written to log if self._level.value >= LoggingLevel.FATAL.value: self._append_log(output) # check if message can be shown in console if self._console.value >= LoggingLevel.FATAL.value: Console.write_line(output, 'red') exit()