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60 lines
1.7 KiB
Python
60 lines
1.7 KiB
Python
from db import database
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class Currency:
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def __init__(self, user_id):
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self.user_id = user_id
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(self.cash, self.special) = Currency.fetch_or_create_balance(self.user_id)
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def add_cash(self, amount):
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self.cash += abs(amount)
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def add_special(self, amount):
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self.special += abs(amount)
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def take_cash(self, amount):
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self.cash -= abs(amount)
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if self.cash < 0:
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self.cash = 0
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def take_special(self, amount):
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self.special -= abs(amount)
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if self.special < 0:
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self.special = 0
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def push(self):
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query = """
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UPDATE currency
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SET cash_balance = ?, special_balance = ?
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WHERE user_id = ?
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"""
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database.execute_query(query, (round(self.cash), round(self.special), self.user_id))
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@staticmethod
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def fetch_or_create_balance(user_id):
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query = """
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SELECT cash_balance, special_balance
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FROM currency
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WHERE user_id = ?
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"""
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try:
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(cash_balance, special_balance) = database.select_query(query, (user_id,))[0]
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except (IndexError, TypeError):
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(cash_balance, special_balance) = (None, None)
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# if the user doesn't have a balance yet -> create one
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# additionally if for some reason a balance becomes Null
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# re-generate the user's balance as fallback.
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if not cash_balance or not special_balance:
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query = """
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INSERT INTO currency (user_id, cash_balance, special_balance)
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VALUES (?, 50, 3)
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"""
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database.execute_query(query, (user_id,))
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return 50, 3
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return cash_balance, special_balance
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