ytptube/app/Config.py

150 lines
4.8 KiB
Python

import json
import logging
import os
import re
import sys
import coloredlogs
from version import APP_VERSION
class Config:
__instance = None
config_path: str = '.'
download_path: str = '.'
temp_path: str = '{download_path}'
temp_keep: bool = False
db_file: str = '{config_path}/ytptube.db'
url_host: str = ''
url_prefix: str = ''
url_socketio: str = '{url_prefix}socket.io'
output_template: str = '%(title)s.%(ext)s'
output_template_chapter: str = '%(title)s - %(section_number)s %(section_title)s.%(ext)s'
ytdl_options: dict | str = {}
ytdl_debug: bool = False
host: str = '0.0.0.0'
port: int = 8081
keep_archive: bool = False
base_path: str = ''
logging_level: str = 'info'
version: str = APP_VERSION
_boolean_vars: tuple = ('keep_archive', 'ytdl_debug', 'temp_keep',)
_immutable: tuple = ('version', '__instance', 'ytdl_options',)
@staticmethod
def get_instance():
""" Static access method. """
return Config() if not Config.__instance else Config.__instance
def __init__(self):
""" Virtually private constructor. """
if Config.__instance is not None:
raise Exception(
"This class is a singleton!. Use Config.getInstance() instead.")
else:
Config.__instance = self
baseDefualtPath: str = os.path.dirname(os.path.dirname(__file__))
self.config_path = os.path.join(baseDefualtPath, 'var', 'config')
self.download_path = os.path.join(baseDefualtPath, 'var', 'downloads')
self.temp_path = os.path.join(baseDefualtPath, 'var', 'tmp')
for k, v in self._getAttributes().items():
if k.startswith('_'):
continue
# If the variable is not updateable, set it to the default value.
if k in self._immutable:
setattr(self, k, v)
continue
lookUpKey: str = f'YTP_{k}'.upper()
setattr(
self, k,
os.environ[lookUpKey] if lookUpKey in os.environ else v
)
for k, v in self.__dict__.items():
if k.startswith('_') or k in self._immutable:
continue
if isinstance(v, str) and '{' in v and '}' in v:
for key in re.findall(r'\{.*?\}', v):
localKey: str = key[1:-1]
if localKey not in self.__dict__:
logging.error(
f'Config variable "{k}" had non exisitng config reference "{key}"')
sys.exit(1)
v = v.replace(key, getattr(self, localKey))
setattr(self, k, v)
if k in self._boolean_vars:
if str(v).lower() not in (True, False, 'true', 'false', 'on', 'off', '1', '0'):
raise ValueError(
f'Config variable "{k}" is set to a non-boolean value "{v}".')
setattr(self, k, str(v).lower() in (True, 'true', 'on', '1'))
if not self.url_prefix.endswith('/'):
self.url_prefix += '/'
numeric_level = getattr(
logging, self.logging_level.upper(), None)
if not isinstance(numeric_level, int):
raise ValueError(f"Invalid log level: {self.logging_level}")
logging.basicConfig(
force=True,
level=numeric_level,
format="%(asctime)s [%(threadName)-12.12s] [%(levelname)-5.5s] %(message)s"
)
log = logging.getLogger('config')
coloredlogs.install()
optsFile: str = os.path.join(self.config_path, 'ytdlp.json')
if os.path.exists(optsFile) and os.path.getsize(optsFile) > 0:
log.info(f'Loading yt-dlp custom options from "{optsFile}"')
try:
with open(optsFile) as json_data:
opts = json.load(json_data)
assert isinstance(opts, dict)
self.ytdl_options.update(opts)
except (json.decoder.JSONDecodeError, AssertionError) as e:
log.error(
f'JSON error in "{optsFile}": {e}')
sys.exit(1)
else:
log.info(f'No custom yt-dlp options found in "{self.config_path}"')
if self.keep_archive:
log.info(f'keep archive: {self.keep_archive}')
self.ytdl_options['download_archive'] = os.path.join(
self.config_path, 'archive.log')
def _getAttributes(self) -> dict:
attrs: dict = {}
vclass: str = self.__class__
for attribute in vclass.__dict__.keys():
if attribute.startswith('_'):
continue
value = getattr(vclass, attribute)
if not callable(value):
attrs[attribute] = value
return attrs