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73 lines
2.3 KiB
Python
73 lines
2.3 KiB
Python
from utils.format_number import format_number
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import yaml
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import aiohttp
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import json
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import re
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from datetime import datetime
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from http import HTTPStatus
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from decimal import Decimal, ROUND_DOWN
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from utils.format_number import format_number
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config = yaml.safe_load(open('config.yaml'))
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class Converter:
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def __init__(self):
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self.amount: float = 1.0
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self.conv_amount: float = 0.0
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self.from_currency: str = ''
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self.conv_currency: str = ''
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async def convert(self) -> None:
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if not await self.kekkai():
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await self.ddg()
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number = Decimal(str(self.conv_amount))
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self.conv_amount = format_number(number.quantize(Decimal('1.0000'), rounding=ROUND_DOWN))
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async def kekkai(self) -> bool:
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date = datetime.today().strftime('%Y-%m-%d')
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async with aiohttp.ClientSession(timeout=aiohttp.ClientTimeout(total=3)) as session:
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async with session.get(f'{config['kekkai_instance']}/api/getRate/', params={
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'from_currency': self.from_currency,
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'conv_currency': self.conv_currency,
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'date': date,
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'conv_amount': self.amount
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}) as res:
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if not HTTPStatus(res.status).is_success:
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return False
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data = await res.json()
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self.conv_amount = data.get('conv_amount', 0.0)
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return True
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async def ddg(self) -> None:
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async with aiohttp.ClientSession(timeout=aiohttp.ClientTimeout(total=3)) as session:
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async with session.get(
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'https://duckduckgo.com/js/spice/currency/'
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f'{self.amount}/{self.from_currency}/{self.conv_currency}'
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) as res:
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data_text = await res.text()
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data = json.loads(re.findall(r'\(\s*(.*)\s*\);$', data_text)[0])
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for key in ['terms', 'privacy', 'timestamp']:
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data.pop(key, None)
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if len(data.get('to')) == 0:
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raise RuntimeError('Failed to get the exchange rate from DuckDuckGo')
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conv = data.get('to')[0]
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conv_amount = conv.get('mid')
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if conv_amount is None:
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raise RuntimeError('Error when converting currency via DuckDuckGo')
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self.conv_amount = float(conv_amount)
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