Merge pull request #140 from Pentacene/master

新增货币转换插件-bc 数量 货币1 货币2

感谢 @iamfeiwu 提供的API KEY
使用方法：
-bc 数量 货币1 货币2
注：
货币可以是虚拟货币，如BTC、ETH等
也可以是实际货币，如USD、HKD等
如：
-bc 1 BTC HKD 为查询1BTC等价的HKD价格

bc.py

@@ -0,0 +1,119 @@
+""" 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 pagermaid import log
+from pagermaid.listener import listener
+from pagermaid.utils import execute
+
+imported = True
+try:
+    from binance.client import Client
+except ImportError:
+    imported = False
+
+API = "https://api.exchangeratesapi.io/latest"
+CURRENCIES = []
+DATA = {}
+BINANCE_API_KEY = '8PDfQ2lSIyHPWdNAHNIaIoNy3MiiMuvgwYADbmtsKo867B0xnIhIGjPULsOtvMRk'
+BINANCE_API_SECRET = 'tbUiyZ94l0zpYOlKs3eO1dvLNMOSbOb2T1T0eT0I1eogH9Fh8Htvli05eZ1iDvra'
+
+
+def init():
+    """ INIT """
+    with urllib.request.urlopen(API) as response:
+        result = response.read()
+        try:
+            global DATA
+            DATA = json.loads(result)
+            DATA["rates"][DATA["base"]] = 1.0
+            for key in list(enumerate(DATA["rates"])):
+                CURRENCIES.append(key[1])
+            CURRENCIES.sort()
+        except JSONDecodeError as _e:
+            raise _e
+
+
+@listener(is_plugin=True,
+          outgoing=True,
+          command="bc",
+          description="coins",
+          parameters="<num> <coin1> <coin2>")
+async def coin(context):
+    """ coin change """
+    if not imported:
+        await context.edit("支持库python-binance未安装...\n正在尝试自动安装...")
+        await execute('python3 -m pip install python-binance')
+        await sleep(10)
+        result = await execute('python3 show python-binance')
+        if len(result) > 0:
+            await context.edit('支持库python-binance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)):
+            text = f'{action[0]} {action[1].upper().strip()} = {round(float(action[0])*DATA["rates"][_to]/DATA["rates"][_from], 2)} {action[2].upper().strip()}'
+
+        else:
+            if CURRENCIES.count(_from) != 0:
+                number = number * DATA["rates"]["USD"] / DATA["rates"][_from]
+                _from = 'USDT'
+                front_text = f'{action[0]} {action[1]} = \n'
+
+            if CURRENCIES.count(_to) != 0:
+                _to_USD_rate = DATA["rates"][_to] / DATA["rates"]["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= {round(number * float(price) * DATA["rates"]["CNY"]/DATA["rates"]["USD"], 2)} CNY'
+                        else:
+                            rear_text = f'\n= {round(number * float(price) * _to_USD_rate, 2)} {action[2]}'
+                        _r = 2
+                    else:
+                        _r = 8
+                    text = f'{number} {_from} = {round(number * float(price), _r)} {_to}'
+                    break
+                elif _a['symbol'] == str(f'{_to}{_from}'):
+                    price = 1 / float(_a['price'])
+                    _r = 8
+                    text = f'{number} {_from} = {round(number * float(price), _r)} {_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}')

list.json

@@ -439,6 +439,16 @@
             "supported": true,
             "des-short": "发送ghs获取一张色图",
             "des": "命令：ghs"
+        },
+        {
+            "name": "bc",
+            "version": "1.0",
+            "section": "chat",
+            "maintainer": "Pentacene",
+            "size": "4.4 kb",
+            "supported": true,
+            "des-short": "查询含虚拟货币在内的货币价格",
+            "des": "命令：bc 数量 货币1 货币2"
         }
     ]
 }