import { EMA, MACD } from 'technicalindicators';
import { Candle } from '../dao/candles';

export function analyze(candles: Candle[]): { ema34: number; ema200: number; macd: any } {
  let close = candles.map(c => c.close);
  const ema34 = EMA.calculate({ period: 34, values: close, reversedInput: true });
  const ema200 = EMA.calculate({ period: 200, values: close, reversedInput: true });
  const macd = MACD.calculate({
    values: close,
    fastPeriod: 45,
    slowPeriod: 90,
    signalPeriod: 9,
    SimpleMAOscillator: false,
    SimpleMASignal: false,
    reversedInput: true
  });
  const candle = candles[0];
  if (candle.low < ema200[0] && candle.high > ema200[0] && candle.close > ema200[0]) {
    console.log('Buy');
  }

  if (candle.high > ema200[0] && candle.low < ema200[0] && candle.close < ema200[0]) {
    console.log('Sell');
  }

  return { ema34: ema34[0], ema200: ema200[0], macd: macd[0] };
}