import { ScoringRules } from '../config/ScoringConfig.js';
import { MarketRegime } from '../market/MarketRegime.js';
import { SCORE_MODE } from '../config/constants.js';

export const RuleMerger = {
  getRulesForAsset(type, metrics, marketContext = {}, mode = SCORE_MODE.FUNDAMENTAL) {
    const base = ScoringRules[type];
    if (!base) throw new Error(`No rules configured for asset type: ${type}`);

    let rules = JSON.parse(JSON.stringify(base));

    if (type === 'STOCK' && metrics.sector) {
      const override = base.SECTOR_OVERRIDE?.[metrics.sector.toUpperCase()];
      if (override) {
        rules.gates = { ...rules.gates, ...override.gates };
        rules.weights = { ...rules.weights, ...override.weights };
        rules.thresholds = { ...rules.thresholds, ...override.thresholds };
      }
    }
    delete rules.SECTOR_OVERRIDE;

    if (mode === SCORE_MODE.INFLATED) {
      const { gates, thresholds } = new MarketRegime(marketContext).getInflatedOverrides(
        type,
        metrics.sector,
      );
      rules.gates = { ...rules.gates, ...gates };
      rules.thresholds = { ...rules.thresholds, ...thresholds };
    }

    return rules;
  },
};