import { describe, expect, it } from 'bun:test';
import {
  DEFAULT_GRAPH_TICKERS,
  buildGraphingHref,
  metricsForSurfaceAndCadence,
  normalizeGraphTickers,
  parseGraphingParams
} from '@/lib/graphing/catalog';

describe('graphing catalog', () => {
  it('normalizes compare set tickers with dedupe and max five', () => {
    expect(normalizeGraphTickers(' msft, aapl, msft, nvda, amd, goog, meta ')).toEqual([
      'MSFT',
      'AAPL',
      'NVDA',
      'AMD',
      'GOOG'
    ]);
  });

  it('falls back to defaults when params are missing or invalid', () => {
    const state = parseGraphingParams(new URLSearchParams('surface=invalid&metric=made_up&chart=nope'));

    expect(state.tickers).toEqual([...DEFAULT_GRAPH_TICKERS]);
    expect(state.surface).toBe('income_statement');
    expect(state.metric).toBe('revenue');
    expect(state.chart).toBe('line');
    expect(state.scale).toBe('millions');
  });

  it('filters annual-only ratio metrics for non-annual views', () => {
    const quarterlyMetricKeys = metricsForSurfaceAndCadence('ratios', 'quarterly').map((metric) => metric.key);

    expect(quarterlyMetricKeys).not.toContain('3y_revenue_cagr');
    expect(quarterlyMetricKeys).not.toContain('5y_eps_cagr');
    expect(quarterlyMetricKeys).toContain('gross_margin');
  });

  it('includes other operating expense in the income statement metric catalog', () => {
    const metricKeys = metricsForSurfaceAndCadence('income_statement', 'annual').map((metric) => metric.key);

    expect(metricKeys).toContain('operating_expenses');
    expect(metricKeys).toContain('selling_general_and_administrative');
    expect(metricKeys).toContain('research_and_development');
    expect(metricKeys).toContain('other_operating_expense');
  });

  it('replaces invalid metrics after surface and cadence normalization', () => {
    const state = parseGraphingParams(new URLSearchParams('surface=ratios&cadence=quarterly&metric=5y_revenue_cagr&tickers=msft,aapl'));

    expect(state.surface).toBe('ratios');
    expect(state.cadence).toBe('quarterly');
    expect(state.metric).toBe('gross_margin');
    expect(state.tickers).toEqual(['MSFT', 'AAPL']);
  });

  it('builds graphing hrefs with the primary ticker leading the compare set', () => {
    expect(buildGraphingHref('amd')).toContain('tickers=AMD%2CMSFT%2CAAPL%2CNVDA');
  });
});