const { buildIdentifyPrompt, normalizeIdentifyResult } = require('../../server/lib/openai');
const { applyCatalogGrounding, isLikelyGermanCommonName } = require('../../server/lib/scanGrounding');

describe('scan language guards', () => {
  it('keeps the English AI common name when the catalog match is obviously German', () => {
    const aiResult = {
      name: 'Poinsettia',
      botanicalName: 'Euphorbia pulcherrima',
      confidence: 0.66,
      description: 'Poinsettia was identified with AI. Care guidance is shown below.',
      careInfo: {
        waterIntervalDays: 6,
        light: 'Bright indirect light',
        temp: '18-24C',
      },
    };

    const catalogEntries = [
      {
        name: 'Weihnachtsstern',
        botanicalName: 'Euphorbia pulcherrima',
        description: 'Deutscher Katalogeintrag',
        careInfo: {
          waterIntervalDays: 8,
          light: 'Bright indirect light',
          temp: '18-24C',
        },
      },
    ];

    const grounded = applyCatalogGrounding(aiResult, catalogEntries, 'en');

    expect(grounded.grounded).toBe(true);
    expect(grounded.result.name).toBe('Poinsettia');
    expect(grounded.result.botanicalName).toBe('Euphorbia pulcherrima');
    expect(grounded.result.description).toContain('identified with AI');
    expect(grounded.result.careInfo.light).toBe('Bright indirect light');
    expect(grounded.result.confidence).toBeGreaterThanOrEqual(0.78);
  });

  it('keeps a botanical fallback name for English scans when the catalog name is German', () => {
    const normalized = normalizeIdentifyResult({
      name: 'Euphorbia pulcherrima',
      botanicalName: 'Euphorbia pulcherrima',
      confidence: 0.52,
      description: 'Euphorbia pulcherrima was identified with AI. Care guidance is shown below.',
      careInfo: {
        waterIntervalDays: 7,
        light: 'Bright indirect light',
        temp: '18-24C',
      },
    }, 'en');

    const grounded = applyCatalogGrounding(normalized, [
      {
        name: 'Weihnachtsstern',
        botanicalName: 'Euphorbia pulcherrima',
        description: 'Deutscher Katalogeintrag',
        careInfo: {
          waterIntervalDays: 9,
          light: 'Bright indirect light',
          temp: '18-24C',
        },
      },
    ], 'en');

    expect(grounded.result.name).toBe('Euphorbia pulcherrima');
    expect(grounded.result.botanicalName).toBe('Euphorbia pulcherrima');
  });

  it('does not regress non-English grounding behavior for Spanish', () => {
    const aiResult = {
      name: 'Poinsettia',
      botanicalName: 'Euphorbia pulcherrima',
      confidence: 0.64,
      description: 'La planta fue identificada con IA.',
      careInfo: {
        waterIntervalDays: 6,
        light: 'Luz indirecta brillante',
        temp: '18-24C',
      },
    };

    const grounded = applyCatalogGrounding(aiResult, [
      {
        name: 'Flor de Pascua',
        botanicalName: 'Euphorbia pulcherrima',
        description: 'Entrada de catalogo',
        careInfo: {
          waterIntervalDays: 7,
          light: 'Luz indirecta brillante',
          temp: '18-24C',
        },
      },
    ], 'es');

    expect(grounded.result.name).toBe('Flor de Pascua');
    expect(grounded.result.description).toBe('La planta fue identificada con IA.');
    expect(grounded.result.careInfo.light).toBe('Luz indirecta brillante');
  });

  it('hardens the English identify prompt against non-English common names', () => {
    const prompt = buildIdentifyPrompt('en', 'primary');

    expect(prompt).toContain('English common name only');
    expect(prompt).toContain('Never return a German or other non-English common name');
    expect(prompt).toContain('use "botanicalName" as "name" instead');
  });

  it('detects obviously German common names for override protection', () => {
    expect(isLikelyGermanCommonName('Weihnachtsstern')).toBe(true);
    expect(isLikelyGermanCommonName('Weinachtsstern')).toBe(true);
    expect(isLikelyGermanCommonName('Poinsettia')).toBe(false);
  });
});