vyndr/tests/unit/espnStatsAdapter.test.js

// Session 45 — ESPN NBA/WNBA stats fallback. parseAthleteStats is pure; the
// fetch path is exercised with an injected http client.

const espn = require('../../src/services/adapters/espnStatsAdapter');
const svc = require('../../src/services/playerIntelService');

describe('parseAthleteStats (defensive)', () => {
  it('pulls per-game averages from the ESPN categories shape', () => {
    const payload = {
      statistics: { splits: { categories: [
        { stats: [
          { name: 'avgPoints', value: 28.1 },
          { name: 'avgRebounds', value: 8.2 },
          { name: 'avgAssists', value: 6.4 },
        ] },
      ] } },
    };
    const ci = espn.parseAthleteStats(payload);
    expect(ci.ppg).toBe(28.1);
    expect(ci.rpg).toBe(8.2);
    expect(ci.apg).toBe(6.4);
  });

  it('returns null for an unrecognized / empty shape (graceful)', () => {
    expect(espn.parseAthleteStats(null)).toBeNull();
    expect(espn.parseAthleteStats({ nonsense: true })).toBeNull();
    expect(espn.parseAthleteStats({ statistics: { splits: { categories: [{ stats: [{ name: 'foo', value: 1 }] }] } } })).toBeNull();
  });
});

describe('getSeasonAverages (injected http)', () => {
  it('resolves an athlete and parses stats', async () => {
    const http = {
      get: async (url) => {
        if (url.includes('/search')) return { data: { items: [{ id: 123, displayName: 'Luka Doncic', team: { abbreviation: 'DAL' }, position: { abbreviation: 'G' } }] } };
        return { data: { statistics: { splits: { categories: [{ stats: [{ name: 'avgPoints', value: 33 }, { name: 'avgAssists', value: 9 }] }] } } } };
      },
    };
    const r = await espn.getSeasonAverages('Luka Doncic', 'nba', { http });
    expect(r.found).toBe(true);
    expect(r.team).toBe('DAL');
    expect(r.classifierInput.ppg).toBe(33);
    // Wave 2A — the REAL ESPN athlete id is surfaced (headshot CDN), not discarded.
    expect(r.espnId).toBe('123');
  });

  it('Wave 2A — a non-numeric uid degrades espnId to null (never fabricated)', async () => {
    const http = {
      get: async (url) => {
        if (url.includes('/search')) return { data: { items: [{ uid: 's:40~l:46~a:999', displayName: 'X', team: {}, position: {} }] } };
        return { data: { statistics: { splits: { categories: [{ stats: [{ name: 'avgPoints', value: 10 }] }] } } } };
      },
    };
    const r = await espn.getSeasonAverages('X', 'nba', { http });
    expect(r.found).toBe(true);
    expect(r.espnId).toBeNull();
  });

  it('degrades to found:false when ESPN errors', async () => {
    const http = { get: async () => { throw new Error('espn down'); } };
    expect((await espn.getSeasonAverages('X', 'nba', { http })).found).toBe(false);
  });

  it('returns found:false for non-basketball sports', async () => {
    expect((await espn.getSeasonAverages('X', 'mlb')).found).toBe(false);
  });
});

describe('resolvePlayerStats wires the ESPN fallback for NBA', () => {
  it('falls back to ESPN when nbaStatsClient is offline → classifies', async () => {
    const r = await svc.resolvePlayerStats('Luka Doncic', 'nba', {
      nbaClient: { getSeasonAvg: async () => { throw new Error('python offline'); } },
      espnStats: { getSeasonAverages: async () => ({ found: true, team: 'DAL', position: 'G', classifierInput: { ppg: 33, apg: 9, rpg: 8 }, espnId: '3945274' }) },
    });
    expect(r.found).toBe(true);
    expect(r.team).toBe('DAL');
    expect(r.classifierInput.ppg).toBe(33);
    // Wave 2A — espnId surfaces through resolvePlayerStats → the snapshot grade.
    expect(r.espnId).toBe('3945274');
  });

  it('found:false when both sources are empty', async () => {
    const r = await svc.resolvePlayerStats('Nobody', 'nba', {
      nbaClient: { getSeasonAvg: async () => null },
      espnStats: { getSeasonAverages: async () => ({ found: false }) },
    });
    expect(r.found).toBe(false);
  });
});