update refactor

src/services/indicatorService.ts

@@ -0,0 +1,27 @@
+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] };
+}