mirror of
https://github.com/Steffo99/greed.git
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305 lines
16 KiB
Python
305 lines
16 KiB
Python
import threading
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import typing
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import uuid
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import telegram
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import strings
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import configloader
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import sys
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import queue as queuem
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import database as db
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import re
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from decimal import Decimal
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class StopSignal:
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"""A data class that should be sent to the worker when the conversation has to be stopped abnormally."""
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def __init__(self, reason: str=""):
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self.reason = reason
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class ChatWorker(threading.Thread):
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"""A worker for a single conversation. A new one is created every time the /start command is sent."""
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def __init__(self, bot: telegram.Bot, chat: telegram.Chat, *args, **kwargs):
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# Initialize the thread
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super().__init__(name=f"ChatThread {chat.first_name}", *args, **kwargs)
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# Store the bot and chat info inside the class
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self.bot = bot
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self.chat = chat
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# Open a new database session
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self.session = db.Session()
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# Get the user db data from the users and admin tables
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self.user = None
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self.admin = None
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# The sending pipe is stored in the ChatWorker class, allowing the forwarding of messages to the chat process
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self.queue = queuem.Queue()
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# The current active invoice payload; reject all invoices with a different payload
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self.invoice_payload = None
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def run(self):
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"""The conversation code."""
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# TODO: catch all the possible exceptions
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# Welcome the user to the bot
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self.bot.send_message(self.chat.id, strings.conversation_after_start)
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# Get the user db data from the users and admin tables
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self.user = self.session.query(db.User).filter(db.User.user_id == self.chat.id).one_or_none()
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self.admin = self.session.query(db.Admin).filter(db.Admin.user_id == self.chat.id).one_or_none()
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# If the user isn't registered, create a new record and add it to the db
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if self.user is None:
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# Create the new record
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self.user = db.User(self.chat)
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# Add the new record to the db
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self.session.add(self.user)
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# Commit the transaction
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self.session.commit()
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# If the user is not an admin, send him to the user menu
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if self.admin is None:
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self.__user_menu()
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# If the user is an admin, send him to the admin menu
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else:
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self.__admin_menu()
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def stop(self, reason: str=""):
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"""Gracefully stop the worker process"""
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# Send a stop message to the thread
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self.queue.put(StopSignal(reason))
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# Wait for the thread to stop
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self.join()
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def __receive_next_update(self) -> telegram.Update:
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"""Get the next update from the queue.
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If no update is found, block the process until one is received.
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If a stop signal is sent, try to gracefully stop the thread."""
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# Pop data from the queue
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try:
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data = self.queue.get(timeout=int(configloader.config["Telegram"]["conversation_timeout"]))
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except queuem.Empty:
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# If the conversation times out, gracefully stop the thread
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self.__graceful_stop()
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# Check if the data is a stop signal instance
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if isinstance(data, StopSignal):
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# Gracefully stop the process
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self.__graceful_stop()
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# Return the received update
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return data
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def __wait_for_specific_message(self, items:typing.List[str]) -> str:
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"""Continue getting updates until until one of the strings contained in the list is received as a message."""
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while True:
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# Get the next update
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update = self.__receive_next_update()
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# Ensure the update contains a message
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if update.message is None:
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continue
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# Ensure the message contains text
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if update.message.text is None:
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continue
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# Check if the message is contained in the list
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if update.message.text not in items:
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continue
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# Return the message text
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return update.message.text
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def __wait_for_regex(self, regex:str) -> str:
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"""Continue getting updates until the regex finds a match in a message, then return the first capture group."""
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while True:
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# Get the next update
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update = self.__receive_next_update()
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# Ensure the update contains a message
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if update.message is None:
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continue
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# Ensure the message contains text
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if update.message.text is None:
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continue
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# Try to match the regex with the received message
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match = re.search(regex, update.message.text)
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# Ensure there is a match
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if match is None:
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continue
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# Return the first capture group
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return match.group(1)
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def __wait_for_precheckoutquery(self) -> telegram.PreCheckoutQuery:
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"""Continue getting updates until a precheckoutquery is received.
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The payload is checked by the core before forwarding the message."""
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while True:
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# Get the next update
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update = self.__receive_next_update()
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# Ensure the update contains a precheckoutquery
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if update.pre_checkout_query is None:
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continue
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# Return the precheckoutquery
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return update.pre_checkout_query
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def __wait_for_successfulpayment(self) -> telegram.SuccessfulPayment:
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"""Continue getting updates until a successfulpayment is received."""
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while True:
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# Get the next update
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update = self.__receive_next_update()
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# Ensure the update contains a message
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if update.message is None:
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continue
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# Ensure the message is a successfulpayment
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if update.message.successful_payment is None:
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continue
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# Return the successfulpayment
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return update.message.successful_payment
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def __user_menu(self):
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"""Function called from the run method when the user is not an administrator.
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Normal bot actions should be placed here."""
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# Loop used to returning to the menu after executing a command
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while True:
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# Create a keyboard with the user main menu
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keyboard = [[telegram.KeyboardButton(strings.menu_order)],
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[telegram.KeyboardButton(strings.menu_order_status)],
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[telegram.KeyboardButton(strings.menu_add_credit)],
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[telegram.KeyboardButton(strings.menu_bot_info)]]
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# Send the previously created keyboard to the user (ensuring it can be clicked only 1 time)
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self.bot.send_message(self.chat.id, strings.conversation_open_user_menu.format(username=str(self.user)),
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reply_markup=telegram.ReplyKeyboardMarkup(keyboard, one_time_keyboard=True))
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# Wait for a reply from the user
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selection = self.__wait_for_specific_message([strings.menu_order, strings.menu_order_status,
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strings.menu_add_credit, strings.menu_bot_info])
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# If the user has selected the Order option...
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if selection == strings.menu_order:
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# Open the order menu
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self.__order_menu()
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# If the user has selected the Order Status option...
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elif selection == strings.menu_order_status:
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# Display the order(s) status
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self.__order_status()
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# If the user has selected the Add Credit option...
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elif selection == strings.menu_add_credit:
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# Display the add credit menu
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self.__add_credit_menu()
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# If the user has selected the Bot Info option...
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elif selection == strings.menu_bot_info:
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# Display information about the bot
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self.__bot_info()
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def __order_menu(self):
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raise NotImplementedError()
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def __order_status(self):
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raise NotImplementedError()
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def __add_credit_menu(self):
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"""Add more credit to the account."""
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# TODO: a loop might be needed here
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# Create a payment methods keyboard
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keyboard = list()
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# Add the supported payment methods to the keyboard
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# Cash
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keyboard.append([telegram.KeyboardButton(strings.menu_cash)])
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# Telegram Payments
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if configloader.config["Credit Card"]["credit_card_token"] != "":
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keyboard.append([telegram.KeyboardButton(strings.menu_credit_card)])
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# Keyboard: go back to the previous menu
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keyboard.append([telegram.KeyboardButton(strings.menu_cancel)])
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# Send the keyboard to the user
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self.bot.send_message(self.chat.id, strings.conversation_payment_method,
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reply_markup=telegram.ReplyKeyboardMarkup(keyboard, one_time_keyboard=True))
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# Wait for a reply from the user
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selection = self.__wait_for_specific_message([strings.menu_cash, strings.menu_credit_card, strings.menu_cancel])
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# If the user has selected the Cash option...
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if selection == strings.menu_cash:
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# Go to the pay with cash function
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self.__add_credit_cash()
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# If the user has selected the Credit Card option...
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elif selection == strings.menu_credit_card:
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# Go to the pay with credit card function
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self.__add_credit_cc()
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# If the user has selected the Cancel option...
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elif selection == strings.menu_add_credit:
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# Send him back to the previous menu
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return
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def __add_credit_cash(self):
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"""Tell the user how to pay with cash at this shop."""
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self.bot.send_message(self.chat.id, strings.payment_cash)
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def __add_credit_cc(self):
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"""Ask the user how much money he wants to add to his wallet."""
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# Create a keyboard to be sent later
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keyboard = [[telegram.KeyboardButton(strings.currency_format_string.format(symbol=strings.currency_symbol, value="10"))],
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[telegram.KeyboardButton(strings.currency_format_string.format(symbol=strings.currency_symbol, value="25"))],
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[telegram.KeyboardButton(strings.currency_format_string.format(symbol=strings.currency_symbol, value="50"))],
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[telegram.KeyboardButton(strings.currency_format_string.format(symbol=strings.currency_symbol, value="100"))]]
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# Loop used to continue asking if there's an error during the input
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while True:
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# Send the message and the keyboard
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self.bot.send_message(self.chat.id, strings.payment_cc_amount,
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reply_markup=telegram.ReplyKeyboardMarkup(keyboard, one_time_keyboard=True))
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# Wait until a valid amount is sent
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# TODO: check and debug the regex
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selection = Decimal(self.__wait_for_regex(r"([0-9]{1,3}(?:[.,][0-9]{1,2})?)").replace(",", "."))
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# Ensure the amount is within the range
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if selection > Decimal(configloader.config["Payments"]["max_amount"]):
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self.bot.send_message(self.chat.id, strings.error_payment_amount_over_max.format(max_amount=strings.currency_format_string.format(symbol=strings.currency_symbol, value=configloader.config["Payments"]["max_amount"])))
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continue
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elif selection < Decimal(configloader.config["Payments"]["min_amount"]):
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self.bot.send_message(self.chat.id, strings.error_payment_amount_under_min.format(min_amount=strings.currency_format_string.format(symbol=strings.currency_symbol, value=configloader.config["Payments"]["min_amount"])))
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continue
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break
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# Set the invoice active invoice payload
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self.invoice_payload = str(uuid.uuid4())
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# Create the price array
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prices = [telegram.LabeledPrice(label=strings.payment_invoice_label, amount=int(selection * (10 ** int(configloader.config["Payments"]["currency_exp"]))))]
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# If the user has to pay a fee when using the credit card, add it to the prices list
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fee_percentage = Decimal(configloader.config["Credit Card"]["fee_percentage"])
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fee_fixed = Decimal(configloader.config["Credit Card"]["fee_fixed"])
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total_fee = (selection * fee_percentage + fee_fixed).quantize(Decimal("1.00"))
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prices.append(telegram.LabeledPrice(label=strings.payment_invoice_fee_label, amount=int(total_fee)))
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# The amount is valid, send the invoice
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self.bot.send_invoice(self.chat.id,
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title=strings.payment_invoice_title,
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description=strings.payment_invoice_description.format(amount=strings.currency_format_string.format(symbol=strings.currency_symbol, value=selection)),
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payload=self.invoice_payload,
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provider_token=configloader.config["Credit Card"]["credit_card_token"],
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start_parameter="tempdeeplink", # TODO: no idea on how deeplinks should work
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currency=configloader.config["Payments"]["currency"],
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prices=prices,
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need_name=configloader.config["Credit Card"]["name_required"] == "yes",
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need_email=configloader.config["Credit Card"]["email_required"] == "yes",
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need_phone_number=configloader.config["Credit Card"]["phone_required"] == "yes")
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# Wait for the invoice
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precheckoutquery = self.__wait_for_precheckoutquery()
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# TODO: ensure the bot doesn't die here!
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# Accept the checkout
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self.bot.answer_pre_checkout_query(precheckoutquery.id, ok=True)
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# Wait for the payment
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successfulpayment = self.__wait_for_successfulpayment()
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# Create a new database transaction
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transaction = db.Transaction(user=self.user,
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value=successfulpayment.total_amount - int(total_fee * (10 ** int(configloader.config["Payments"]["currency_exp"]))),
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provider="Credit Card",
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telegram_charge_id=successfulpayment.telegram_payment_charge_id,
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provider_charge_id=successfulpayment.provider_payment_charge_id)
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if successfulpayment.order_info is not None:
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transaction.payment_name = successfulpayment.order_info.name
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transaction.payment_email = successfulpayment.order_info.email
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transaction.payment_phone = successfulpayment.order_info.phone_number
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# Add the credit to the user account
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self.user.credit += (successfulpayment.total_amount - int(total_fee * (10 ** int(configloader.config["Payments"]["currency_exp"]))))
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# Add and commit the transaction
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self.session.add(transaction)
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self.session.commit()
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def __bot_info(self):
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"""Send information about the bot."""
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self.bot.send_message(self.chat.id, strings.bot_info, parse_mode="HTML")
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def __admin_menu(self):
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"""Function called from the run method when the user is an administrator.
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Administrative bot actions should be placed here."""
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raise NotImplementedError()
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def __graceful_stop(self):
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"""Handle the graceful stop of the thread."""
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# Notify the user that the session has expired and remove the keyboard
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self.bot.send_message(self.chat.id, strings.conversation_expired, reply_markup=telegram.ReplyKeyboardRemove())
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# Close the database session
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# End the process
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sys.exit(0)
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