KalBot/lib/strategies/bull-dip-buyer.js

import { BaseStrategy } from './base.js';

export class BullDipBuyer extends BaseStrategy {
  constructor(config = {}) {
    super('bull-dip-buyer', {
      maxYesPrice: config.maxYesPrice || 45, // Buy the dip when Yes is cheap
      minYesPrice: config.minYesPrice || 15, // Avoid completely dead markets
      betSize: config.betSize || 2,
      cooldownMs: config.cooldownMs || 60000,
      ...config
    });
    
    this.lastTradeTime = 0;
    this.lastTradeTicker = null;
  }

  evaluate(state) {
    if (!state || !this.enabled) return null;

    const now = Date.now();
    if (now - this.lastTradeTime < this.config.cooldownMs) return null;
    if (state.ticker === this.lastTradeTicker) return null;

    const { yesPct } = state;

    // Only buy YES when it dips into our target buy zone
    if (yesPct <= this.config.maxYesPrice && yesPct >= this.config.minYesPrice) {
      const signal = {
        strategy: this.name,
        side: 'yes',
        price: yesPct,
        size: this.config.betSize,
        reason: `Bullish dip buy: Yes dropped to ${yesPct}¢`,
        ticker: state.ticker
      };

      this.lastTradeTime = now;
      this.lastTradeTicker = state.ticker;
      return signal;
    }

    return null;
  }
}