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// QuaTick Strategy — EMA Crossover
import { Strategy, Indicator } from '@quatick/sdk';

export class EMACrossover extends Strategy {
  emaFast = new Indicator.EMA({ period: 9 });
  emaSlow = new Indicator.EMA({ period: 21 });

  onBar(bar) {
    const fast = this.emaFast.value;
    const slow = this.emaSlow.value;

    if (fast > slow && this.position === 0) {
      this.buy({ qty: this.calculateSize(bar.close) });
      this.setStopLoss(bar.close * 0.98);
      this.setTakeProfit(bar.close * 1.04);
    }
    
    if (fast < slow && this.position > 0) {
      this.sell({ qty: this.position });
    }
  }
}