import talib
import numpy as np
import time,setting
import telegram_sender
from datasource import crypto
import dingding
import redis_helper
import discord_sender


# crossover 函数：检测上穿信号
def crossover(series1, series2):
    return (series1 > series2) & (series1.shift(1) <= series2.shift(1))

# crossunder 函数：检测下穿信号
def crossunder(series1, series2):
    return (series1 < series2) & (series1.shift(1) >= series2.shift(1))

## 检查信号
def stratergy_run(symbol, interval, df, debug):

    macd_fast_length = 12
    macd_slow_length = 26
    macd_signal_length = 9
    bollinger_length = 20
    bollinger_mult = 2.0

    # 计算EMA 144， 200
    fast_ema = talib.EMA(df['close'], timeperiod=144)
    slow_ema = talib.EMA(df['close'], timeperiod=200)

    # 计算 MACD
    macd, macd_signal, macd_hist = talib.MACD(df['close'], fastperiod=macd_fast_length, slowperiod=macd_slow_length, signalperiod=macd_signal_length)

    # 计算布林带
    upperband, middleband, lowerband = talib.BBANDS(df['close'], timeperiod=bollinger_length, nbdevup=bollinger_mult, nbdevdn=bollinger_mult, matype=0)

    # 生成交易信号
    long_condition = (macd.shift(1) <= 0) & (macd > 0) & (df['high'] < upperband) &  (df['close'] > fast_ema | df['close'] > slow_ema)
    short_condition = (macd.shift(1) >= 0) & (macd < 0) & (df['low'] > lowerband) &  (df['close'] < fast_ema | df['close'] < slow_ema)


    df['Long_Signal'] = np.where(long_condition, True, False)
    df['Short_Signal'] = np.where(short_condition,True, False)

    latest = df.iloc[-2]
    print(f"【{symbol} - {interval}】 is checked!")

    direction = ""
    if latest['Short_Signal'] == True:
        direction = '空'
    if latest['Long_Signal'] == True:
        direction = '多'
    if direction != "":
        message = f"策略:【MACD+BOLL策略V1.1】\r\n"
        message += f"品种: {symbol}\r\n"
        message += f"周期: {interval}\r\n"
        message += f"信号: 【{direction}】\r\n"
        message += f"收盘价: {latest['close']}\r\n"

        if debug == False:
            url = 'https://discordapp.com/api/webhooks/1286585288986198048/iQ-yr26ViW45GM48ql8rPu70Iumqcmn_XXAmxAcKGeiQBmTQoDPeq-TmlChvIHkw_HJ-'
            discord_sender.send_message(url,'🦄信号提醒🦄',message)

            print(f"【{symbol} - {interval}】 is singal fired!")
        else:
            print(message)


def run_crypto(interval, debug=False):
    print('Vegas策略运行.')
    time.sleep(5)
    for s in redis_helper.get_symbols():
        df = crypto.get_klines(s, interval, True)
        stratergy_run(s,interval, df, debug)
        
        time.sleep(1)