vyndr/tests/unit/archetypeService.test.js

// Session 42 — archetype classification service.

const svc = require('../../src/services/archetypeService');

describe('archetypeService — registry', () => {
  it('exposes the full design archetype set (41: 15 NBA + 5 WNBA + 15 MLB + 6 soccer)', () => {
    expect(Object.keys(svc.ARCHETYPES).length).toBe(41);
    const bySport = {};
    for (const a of Object.values(svc.ARCHETYPES)) bySport[a.sport] = (bySport[a.sport] || 0) + 1;
    expect(bySport).toEqual({ nba: 15, wnba: 5, mlb: 15, soccer: 6 });
  });

  it('every archetype has name/tag/color/glyph/description/propDNA/education', () => {
    for (const [name, a] of Object.entries(svc.ARCHETYPES)) {
      expect(typeof a.tag).toBe('string');
      expect(a.color).toMatch(/^#[0-9A-Fa-f]{6}$/);
      expect(typeof a.glyph).toBe('string');
      expect(typeof a.description).toBe('string');
      expect(a.propDNA).toBeTruthy();
      expect(Array.isArray(a.propDNA.reliable)).toBe(true);
      expect(Array.isArray(a.propDNA.volatile)).toBe(true);
      expect(a.education.length).toBeGreaterThan(20);
      expect(name).toBe(name.toUpperCase());
    }
  });

  it('colors are unique WITHIN each sport (reused across sports by design)', () => {
    const bySport = {};
    for (const a of Object.values(svc.ARCHETYPES)) {
      bySport[a.sport] = bySport[a.sport] || [];
      bySport[a.sport].push(a.color);
    }
    for (const [sport, colors] of Object.entries(bySport)) {
      expect(new Set(colors).size).toBe(colors.length); // no dup within sport
    }
  });

  it('getArchetype is case-insensitive and returns null for unknown', () => {
    expect(svc.getArchetype('ace').name).toBe('ACE');
    expect(svc.getArchetype('Two-Way Anchor').name).toBe('TWO-WAY ANCHOR');
    expect(svc.getArchetype('not a real one')).toBeNull();
  });
});

describe('archetypeService — NBA classification', () => {
  it('classifies a volume scorer', () => {
    const r = svc.classifyNBA({ ppg: 30, rpg: 5, apg: 4, usg: 33, threes: 2.5, pos: 'G' });
    expect(r.primary.name).toBe('VOLUME SCORER');
    expect(r.sport).toBe('nba');
  });

  it('returns primary + secondary for a hybrid (Point Forward / Floor General)', () => {
    const r = svc.classifyNBA({ ppg: 22, rpg: 7, apg: 8, usg: 27, pos: 'F', threes: 1.5 });
    expect(r.primary).toBeTruthy();
    expect(r.secondary).toBeTruthy();
    expect(r.primary.name).not.toBe(r.secondary.name);
  });

  it('classifies a two-way anchor (Wembanyama-type)', () => {
    const r = svc.classifyNBA({ ppg: 24, rpg: 11, apg: 3, bpg: 3.2, usg: 31, threes: 1.5, pos: 'C' });
    expect(['TWO-WAY ANCHOR', 'POST SCORER', 'STRETCH BIG']).toContain(r.primary.name);
  });

  it('produces a normalized blend that sums to ~1', () => {
    const r = svc.classifyNBA({ ppg: 28, rpg: 8, apg: 7, usg: 30, pos: 'F' });
    const sum = r.blend.reduce((s, b) => s + b.weight, 0);
    expect(sum).toBeGreaterThan(0.98);
    expect(sum).toBeLessThan(1.02);
  });
});

describe('archetypeService — MLB classification', () => {
  it('differentiates an Ace from an Innings Eater', () => {
    const ace = svc.classifyMLB({ role: 'SP', era: 2.9, k9: 11.5, whip: 0.98, ip_per_start: 6.2 });
    const eater = svc.classifyMLB({ role: 'SP', era: 4.1, k9: 7.0, whip: 1.3, ip_per_start: 6.5 });
    expect(ace.primary.name).toBe('ACE');
    expect(eater.primary.name).toBe('INNINGS EATER');
  });

  it('classifies a closer', () => {
    const r = svc.classifyMLB({ role: 'CL', era: 2.2, k9: 12, saves: 24, ip_per_start: 1 });
    expect(r.primary.name).toBe('CLOSER');
  });

  it('classifies a contact hitter and a power-pull hitter differently', () => {
    const contact = svc.classifyMLB({ avg: 0.315, hr: 8, rbi: 40, k_rate: 12, ops: 0.82 });
    const power = svc.classifyMLB({ avg: 0.235, hr: 34, rbi: 88, k_rate: 30, ops: 0.86 });
    expect(contact.primary.name).toBe('CONTACT');
    expect(power.primary.name).toBe('POWER PULL');
  });
});

describe('archetypeService — WNBA classification', () => {
  it('classifies a dominant post / interior anchor (Wilson-type)', () => {
    const r = svc.classifyWNBA({ ppg: 27, rpg: 12, apg: 2, bpg: 2.3, usg: 31, pos: 'F' });
    expect(['INTERIOR ANCHOR', 'VOLUME SCORER', 'STRETCH FORWARD']).toContain(r.primary.name);
  });

  it('classifies a floor general', () => {
    const r = svc.classifyWNBA({ ppg: 16, rpg: 4, apg: 7, usg: 24, pos: 'G' });
    expect(r.primary.name).toBe('FLOOR GENERAL');
  });
});

describe('archetypeService — graceful fallback', () => {
  it('returns a fallback archetype for empty stats (never crashes)', () => {
    expect(svc.classifyNBA({}).primary).toBeTruthy();
    expect(svc.classifyMLB({}).primary).toBeTruthy();
    expect(svc.classify('badsport', {}).primary).toBeNull();
  });
});