import { CREDIT_RATING_SCALE } from '../../config/ScoringConfig.js';
import { Asset } from './Asset.js';

interface BondData {
  ticker?: string;
  currentPrice?: number;
  creditRating?: string;
  yieldToMaturity?: string | number;
  duration?: string | number;
  [key: string]: unknown;
}

export interface BondMetrics {
  ytm: number;
  duration: number;
  creditRating: string;
  creditRatingNumeric: number;
}

export class Bond extends Asset {
  metrics: BondMetrics;

  constructor(data: BondData) {
    super(data);

    const creditRating = data.creditRating || 'BBB';
    const creditRatingNumeric = CREDIT_RATING_SCALE[creditRating] ?? 7;

    this.metrics = {
      ytm: parseFloat(String(data.yieldToMaturity)) || 0,
      duration: parseFloat(String(data.duration)) || 0,
      creditRating,
      creditRatingNumeric,
    };
  }

  getDisplayMetrics(): Record<string, string> {
    return {
      Ticker: this.ticker,
      Type: 'BOND',
      Price: this.formatCurrency(this.currentPrice),
      'YTM%': `${this.metrics.ytm.toFixed(2)}%`,
      Duration: this.metrics.duration.toFixed(1),
      Rating: `${this.metrics.creditRating} (${this.metrics.creditRatingNumeric})`,
    };
  }
}