Kazuma
44 lines
1.5 KiB
TypeScript
44 lines
1.5 KiB
TypeScript
import { ScoringRules } from '../config/ScoringConfig';
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import { MarketRegime } from './MarketRegime';
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import { SCORE_MODE } from '../config/constants';
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import type { AssetType, MarketContext, RuleSet } from '../types';
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export class RuleMerger {
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static getRulesForAsset(
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type: AssetType,
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metrics: { sector?: string },
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marketContext: Partial<MarketContext> = {},
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mode: string = SCORE_MODE.FUNDAMENTAL,
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): RuleSet {
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const base = ScoringRules[type as keyof typeof ScoringRules];
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if (!base) throw new Error(`No rules configured for asset type: ${type}`);
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// Deep clone to avoid mutating the source config
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const rules: RuleSet & { SECTOR_OVERRIDE?: unknown } = JSON.parse(JSON.stringify(base));
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if (type === 'STOCK' && metrics.sector) {
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const stockBase = ScoringRules.STOCK;
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const override =
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stockBase.SECTOR_OVERRIDE?.[
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metrics.sector.toUpperCase() as keyof typeof stockBase.SECTOR_OVERRIDE
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];
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if (override) {
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rules.gates = { ...rules.gates, ...override.gates };
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rules.weights = { ...rules.weights, ...override.weights };
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rules.thresholds = { ...rules.thresholds, ...override.thresholds };
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}
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}
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delete rules.SECTOR_OVERRIDE;
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if (mode === SCORE_MODE.INFLATED) {
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const { gates, thresholds } = new MarketRegime(
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marketContext as MarketContext,
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).getInflatedOverrides(type, metrics.sector);
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rules.gates = { ...rules.gates, ...gates };
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rules.thresholds = { ...rules.thresholds, ...thresholds };
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}
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return rules;
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}
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}
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