mirror of
https://github.com/Steffo99/greed.git
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241 lines
12 KiB
Python
241 lines
12 KiB
Python
import logging
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import os, sys
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import threading
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import sqlalchemy
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import sqlalchemy.ext.declarative as sed
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import telegram
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import database
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import duckbot
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import localization
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import nuconfig
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import worker
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try:
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import coloredlogs
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except ImportError:
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coloredlogs = None
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def main():
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"""The core code of the program. Should be run only in the main process!"""
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# Rename the main thread for presentation purposes
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threading.current_thread().name = "Core"
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# Start logging setup
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log = logging.getLogger("core")
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logging.root.setLevel("INFO")
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log.debug("Set logging level to INFO while the config is being loaded")
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# Ensure the template config file exists
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if not os.path.isfile("config/template_config.toml"):
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log.fatal("config/template_config.toml does not exist!")
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exit(254)
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# Check where the config path is located from the CONFIG_PATH environment variable
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config_path = os.environ.get("CONFIG_PATH", "config/config.toml")
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# If the config file does not exist, clone the template and exit
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if not os.path.isfile(config_path):
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log.debug("config/config.toml does not exist.")
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with open("config/template_config.toml", encoding="utf8") as template_cfg_file, \
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open(config_path, "w", encoding="utf8") as user_cfg_file:
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# Copy the template file to the config file
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user_cfg_file.write(template_cfg_file.read())
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log.fatal("A config file has been created."
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" Customize it, then restart greed!")
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exit(1)
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# Compare the template config with the user-made one
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with open("config/template_config.toml", encoding="utf8") as template_cfg_file, \
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open(config_path, encoding="utf8") as user_cfg_file:
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template_cfg = nuconfig.NuConfig(template_cfg_file)
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user_cfg = nuconfig.NuConfig(user_cfg_file)
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if not template_cfg.cmplog(user_cfg):
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log.fatal("There were errors while parsing the config file. Please fix them and restart greed!")
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exit(2)
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else:
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log.debug("Configuration parsed successfully!")
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# Finish logging setup
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logging.root.setLevel(user_cfg["Logging"]["level"])
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stream_handler = logging.StreamHandler()
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if coloredlogs is not None:
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stream_handler.formatter = coloredlogs.ColoredFormatter(user_cfg["Logging"]["format"], style="{")
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else:
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stream_handler.formatter = logging.Formatter(user_cfg["Logging"]["format"], style="{")
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logging.root.handlers.clear()
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logging.root.addHandler(stream_handler)
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log.debug("Logging setup successfully!")
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# Ignore most python-telegram-bot logs, as they are useless most of the time
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logging.getLogger("telegram").setLevel("ERROR")
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# Find the database URI
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# Through environment variables first
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if db_engine := os.environ.get("DB_ENGINE"):
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log.debug("Sqlalchemy engine overridden by the DB_ENGINE envvar.")
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# Then via the config file
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else:
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db_engine = user_cfg["Database"]["engine"]
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log.debug("Using sqlalchemy engine set in the configuration file.")
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# Create the database engine
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log.debug("Creating the sqlalchemy engine...")
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engine = sqlalchemy.create_engine(db_engine)
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log.debug("Binding metadata to the engine...")
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database.TableDeclarativeBase.metadata.bind = engine
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log.debug("Creating all missing tables...")
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database.TableDeclarativeBase.metadata.create_all()
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log.debug("Preparing the tables through deferred reflection...")
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sed.DeferredReflection.prepare(engine)
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# Create a bot instance
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bot = duckbot.factory(user_cfg)(request=telegram.utils.request.Request(user_cfg["Telegram"]["con_pool_size"]))
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# Test the specified token
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log.debug("Testing bot token...")
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me = bot.get_me()
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if me is None:
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logging.fatal("The token you have entered in the config file is invalid. Fix it, then restart greed.")
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sys.exit(1)
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log.debug("Bot token is valid!")
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# Finding default language
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default_language = user_cfg["Language"]["default_language"]
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# Creating localization object
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default_loc = localization.Localization(language=default_language, fallback=default_language)
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# Create a dictionary linking the chat ids to the Worker objects
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# {"1234": <Worker>}
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chat_workers = {}
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# Current update offset; if None it will get the last 100 unparsed messages
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next_update = None
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# Notify on the console that the bot is starting
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log.info(f"@{me.username} is starting!")
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# Main loop of the program
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while True:
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# Get a new batch of 100 updates and mark the last 100 parsed as read
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update_timeout = user_cfg["Telegram"]["long_polling_timeout"]
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log.debug(f"Getting updates from Telegram with a timeout of {update_timeout} seconds")
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updates = bot.get_updates(offset=next_update,
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timeout=update_timeout)
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# Parse all the updates
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for update in updates:
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# If the update is a message...
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if update.message is not None:
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# Ensure the message has been sent in a private chat
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if update.message.chat.type != "private":
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log.debug(f"Received a message from a non-private chat: {update.message.chat.id}")
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# Notify the chat
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bot.send_message(update.message.chat.id, default_loc.get("error_nonprivate_chat"))
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# Skip the update
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continue
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# If the message is a start command...
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if isinstance(update.message.text, str) and update.message.text.startswith("/start"):
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log.info(f"Received /start from: {update.message.chat.id}")
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# Check if a worker already exists for that chat
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old_worker = chat_workers.get(update.message.chat.id)
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# If it exists, gracefully stop the worker
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if old_worker:
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log.debug(f"Received request to stop {old_worker.name}")
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old_worker.stop("request")
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# Initialize a new worker for the chat
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new_worker = worker.Worker(bot=bot,
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chat=update.message.chat,
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telegram_user=update.message.from_user,
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cfg=user_cfg,
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engine=engine,
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daemon=True)
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# Start the worker
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log.debug(f"Starting {new_worker.name}")
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new_worker.start()
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# Store the worker in the dictionary
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chat_workers[update.message.chat.id] = new_worker
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# Skip the update
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continue
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# Otherwise, forward the update to the corresponding worker
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receiving_worker = chat_workers.get(update.message.chat.id)
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# Ensure a worker exists for the chat and is alive
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if receiving_worker is None:
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log.debug(f"Received a message in a chat without worker: {update.message.chat.id}")
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# Suggest that the user restarts the chat with /start
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bot.send_message(update.message.chat.id, default_loc.get("error_no_worker_for_chat"),
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reply_markup=telegram.ReplyKeyboardRemove())
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# Skip the update
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continue
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# If the worker is not ready...
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if not receiving_worker.is_ready():
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log.debug(f"Received a message in a chat where the worker wasn't ready yet: {update.message.chat.id}")
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# Suggest that the user restarts the chat with /start
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bot.send_message(update.message.chat.id, default_loc.get("error_worker_not_ready"),
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reply_markup=telegram.ReplyKeyboardRemove())
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# Skip the update
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continue
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# If the message contains the "Cancel" string defined in the strings file...
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if update.message.text == receiving_worker.loc.get("menu_cancel"):
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log.debug(f"Forwarding CancelSignal to {receiving_worker}")
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# Send a CancelSignal to the worker instead of the update
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receiving_worker.queue.put(worker.CancelSignal())
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else:
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log.debug(f"Forwarding message to {receiving_worker}")
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# Forward the update to the worker
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receiving_worker.queue.put(update)
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# If the update is a inline keyboard press...
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if isinstance(update.callback_query, telegram.CallbackQuery):
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# Forward the update to the corresponding worker
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receiving_worker = chat_workers.get(update.callback_query.from_user.id)
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# Ensure a worker exists for the chat
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if receiving_worker is None:
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log.debug(
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f"Received a callback query in a chat without worker: {update.callback_query.from_user.id}")
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# Suggest that the user restarts the chat with /start
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bot.send_message(update.callback_query.from_user.id, default_loc.get("error_no_worker_for_chat"))
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# Skip the update
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continue
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# Check if the pressed inline key is a cancel button
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if update.callback_query.data == "cmd_cancel":
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log.debug(f"Forwarding CancelSignal to {receiving_worker}")
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# Forward a CancelSignal to the worker
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receiving_worker.queue.put(worker.CancelSignal())
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# Notify the Telegram client that the inline keyboard press has been received
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bot.answer_callback_query(update.callback_query.id)
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else:
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log.debug(f"Forwarding callback query to {receiving_worker}")
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# Forward the update to the worker
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receiving_worker.queue.put(update)
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# If the update is a precheckoutquery, ensure it hasn't expired before forwarding it
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if isinstance(update.pre_checkout_query, telegram.PreCheckoutQuery):
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# Forward the update to the corresponding worker
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receiving_worker = chat_workers.get(update.pre_checkout_query.from_user.id)
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# Check if it's the active invoice for this chat
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if receiving_worker is None or \
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update.pre_checkout_query.invoice_payload != receiving_worker.invoice_payload:
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# Notify the user that the invoice has expired
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log.debug(f"Received a pre-checkout query for an expired invoice in: {update.pre_checkout_query.from_user.id}")
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try:
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bot.answer_pre_checkout_query(update.pre_checkout_query.id,
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ok=False,
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error_message=default_loc.get("error_invoice_expired"))
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except telegram.error.BadRequest:
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log.error("pre-checkout query expired before an answer could be sent!")
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# Go to the next update
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continue
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log.debug(f"Forwarding pre-checkout query to {receiving_worker}")
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# Forward the update to the worker
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receiving_worker.queue.put(update)
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# If there were any updates...
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if len(updates):
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# Mark them as read by increasing the update_offset
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next_update = updates[-1].update_id + 1
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# Run the main function only in the main process
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if __name__ == "__main__":
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main()
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