""" PagerMaid Plugin Coin by Pentacene """
#   ______          _
#   | ___ \        | |
#   | |_/ /__ _ __ | |_ __ _  ___ ___ _ __   ___
#   |  __/ _ \ '_ \| __/ _` |/ __/ _ \ '_ \ / _ \
#   | | |  __/ | | | || (_| | (_|  __/ | | |  __/
#   \_|  \___|_| |_|\__\__,_|\___\___|_| |_|\___|
#

from asyncio import sleep
from json.decoder import JSONDecodeError
from time import strftime
import json
import urllib.request
import time
from telethon.tl.custom.message import Message
from pagermaid import log
from pagermaid.listener import listener
from pagermaid.utils import execute

imported = True
try:
    from binance.client import Client
    import xmltodict
except ImportError:
    imported = False

API = "https://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml"
CURRENCIES = []
DATA = {}
BINANCE_API_KEY = '8PDfQ2lSIyHPWdNAHNIaIoNy3MiiMuvgwYADbmtsKo867B0xnIhIGjPULsOtvMRk'
BINANCE_API_SECRET = 'tbUiyZ94l0zpYOlKs3eO1dvLNMOSbOb2T1T0eT0I1eogH9Fh8Htvli05eZ1iDvra'


def init() -> None:
    """ INIT """
    with urllib.request.urlopen(API) as response:
        result = response.read()
        try:
            global CURRENCIES, DATA
            rate_data = xmltodict.parse(result)
            rate_data = rate_data['gesmes:Envelope']['Cube']['Cube']['Cube']
            for i in rate_data:
                CURRENCIES.append(i['@currency'])
                DATA[i['@currency']] = float(i['@rate'])
            CURRENCIES.sort()
        except Exception as e:
            raise e


@listener(is_plugin=True,
          outgoing=True,
          command="bc",
          description="coins",
          parameters="<num> <coin1> <coin2>")
async def coin(context: Message) -> None:
    """ coin change """
    if not imported:
        await context.edit("支持库 `python-binance` `xmltodict` 未安装...\n正在尝试自动安装...")
        await execute('python3 -m pip install python-binance')
        await execute('python3 -m pip install xmltodict')
        await sleep(10)
        result = await execute('python3 show python-binance')
        result1 = await execute('python3 show xmltodict')
        if len(result) > 0 and len(result1) > 0:
            await context.edit('支持库 `python-binance` `xmltodict` 安装成功...\n正在尝试自动重启...')
            await context.client.disconnect()
        else:
            await context.edit("自动安装失败..请尝试手动安装 `python3 -m pip install python-binance`\n\n`python3 -m pip install xmltodict`\n随后，请重启 PagerMaid")
        return
    init()
    action = context.arguments.split()
    binanceclient = Client(BINANCE_API_KEY, BINANCE_API_SECRET)
    if len(action) < 3:
        await context.edit('输入错误.\n-bc 数量 币种1 币种2')
        return
    else:
        prices = binanceclient.get_all_tickers()
        number = float(action[0])
        _from = action[1].upper().strip()
        _to = action[2].upper().strip()
        front_text = ''
        text = ''
        rear_text = ''
        price = 0.0

        if ((CURRENCIES.count(_from) != 0) and (CURRENCIES.count(_to) != 0)):
            # both are real currency
            text = f'{action[0]} {action[1].upper().strip()} = {float(action[0])*DATA[_to]/DATA[_from]:.2f} {action[2].upper().strip()}'

        else:
            if CURRENCIES.count(_from) != 0:
                # from virtual currency to real currency
                number = number * DATA["USD"] / DATA[_from]
                _from = 'USDT'
                front_text = f'{action[0]} {action[1]} = \n'

            if CURRENCIES.count(_to) != 0:
                # from real currency to virtual currency
                _to_USD_rate = DATA[_to] / DATA["USD"]
                _to = 'USDT'

            for _a in prices:
                if _a['symbol'] == str(f'{_from}{_to}'):
                    price = _a['price']
                    if _to == 'USDT':
                        if action[2].upper().strip() == 'USDT':
                            rear_text = f'\n= {number * float(price) * DATA["CNY"]/DATA["USD"]:.2f} CNY'
                        else:
                            rear_text = f'\n= {number * float(price) * _to_USD_rate:.2f} {action[2].upper().strip()}'
                    if float(price) < 1:
                        text = f'{number} {_from} = {number * float(price):.8f} {_to}'
                    else:
                        text = f'{number} {_from} = {number * float(price):.2f} {_to}'
                    break
                elif _a['symbol'] == str(f'{_to}{_from}'):
                    price = 1 / float(_a['price'])
                    text = f'{number} {_from} = {number * float(price):.8f} {_to}'
                    break
                else:
                    price = None

        if price is None:
            text = f'Cannot find coinpair {action[1].upper().strip()}{action[2].upper().strip()} or {action[2].upper().strip()}{action[1].upper().strip()}'

    await context.edit(f'{front_text}{text}{rear_text}')