/**
 * ACT-WORK-05 差异评估的两枚纯工具 —— 「能算的不问 LLM」:同输入必同结论。
 * 用例逐条对应《ACT-WORK-05-活动流程与工单说明》§八的示例矩阵:
 * A XL2596S-5.0 条件推荐(使能阈值未披露 → UNKNOWN)/ B LM2596S-ADJ 备选(可调版靠外围配成 5V)/
 * C 国产 DCDC 不推荐(输入上限 32V < 客户 40V,硬约束 MISMATCH)。
 */
import { describe, expect, it } from 'vitest';
import { FIRST_PARTY_TOOLS } from '../tools/first-party.ts';

const handler = (name: string) => {
  const found = FIRST_PARTY_TOOLS.find(([n]) => n === name);
  if (found === undefined) throw new Error(`没有工具 ${name}`);
  return found[1];
};
/** ToolHandler 的入参形状见 `apps/api/src/modules/toolbox/internal/adapter/toolbox-store.ts`:纯工具不用连接目标 */
const call = async (name: string, input: Record<string, unknown>) => {
  const out = await handler(name)({ input, connection: {}, operation: undefined, idempotencyKey: undefined });
  if (!out.ok) throw new Error(`工具失败:${JSON.stringify(out)}`);
  return out.output as Record<string, unknown>;
};

type Item = { parameterName: string; compareResult: string; differenceStatus: string; riskLevel: string };
type Result = { candidateInternalPn: string; items: Item[]; counts: Record<string, number> };

const pair = (parameterName: string, originalValue: string, candidateValue: string, constraintType: 'hard' | 'soft', extra: Record<string, string> = {}) => ({
  parameterName,
  originalValue,
  candidateValue,
  constraintType,
  evidenceRef: 'P-08 · P-10 Rev H',
  ...extra,
});

describe('边界上的 null:模型给 null 不该把工具打崩', () => {
  it('**requirement / evidenceRef 给 null 照常算**(2026-08-27 W05 e2e 实测:模型写 `requirement: null` 而不是省掉,`null.trim()` 当场崩,整次调用记成「行动被拒」)', async () => {
    const out = await call('part-substitution-assessment.compare-parameters', {
      candidates: [
        {
          candidateInternalPn: 'LM2596S-ADJ',
          pairs: [
            { parameterName: '输出电压', originalValue: '5.0', candidateValue: '1.23~37', constraintType: 'hard', unit: 'V', requirement: null, evidenceRef: null },
            { parameterName: '输入电压范围', originalValue: '4.5~40', candidateValue: '4.5~40', constraintType: 'hard', unit: 'V', requirement: '>= 40', evidenceRef: 'P-10 Rev H' },
          ],
        },
      ],
    });
    const items = (out as { results: Array<{ items: Array<{ parameterName: string; differenceStatus: string }> }> }).results[0]!.items;
    expect(items.find((i) => i.parameterName === '输出电压')?.differenceStatus).toBe('conditional');
    expect(items.find((i) => i.parameterName === '输入电压范围')?.differenceStatus).toBe('match');
  });

  it('硬约束的 evidenceRef 给 null = 没给证据 → 不判 MATCH,退成 CONDITIONAL', async () => {
    const out = await call('part-substitution-assessment.compare-parameters', {
      candidates: [
        {
          candidateInternalPn: 'X',
          pairs: [{ parameterName: '输出电压', originalValue: '5.0', candidateValue: '5.0', constraintType: 'hard', evidenceRef: null }],
        },
      ],
    });
    expect((out as { results: Array<{ items: Array<{ differenceStatus: string }> }> }).results[0]!.items[0]!.differenceStatus).toBe('conditional');
  });
});

describe('compare-parameters:逐参数四态', () => {
  it('候选温域更宽 → covers → MATCH 低风险;固定 vs 可调 → configurable → CONDITIONAL;未披露 → UNKNOWN', async () => {
    const out = await call('part-substitution-assessment.compare-parameters', {
      candidates: [
        {
          candidateInternalPn: 'XL2596S-5.0',
          pairs: [
            pair('工作温度', '-40~+85', '-40~+125', 'hard', { unit: '℃' }),
            pair('输出电压', '5.0', '5.0', 'hard', { unit: 'V' }),
            pair('使能阈值', '1.4', '未披露', 'hard', { unit: 'V' }),
            pair('静态电流', '5', '4.2', 'soft', { unit: 'mA' }),
          ],
        },
        {
          candidateInternalPn: 'LM2596S-ADJ',
          pairs: [pair('输出电压', '5.0', '1.23~37', 'hard', { unit: 'V' })],
        },
      ],
    });
    const results = out['results'] as Result[];
    const a = results[0]!;
    const b = results[1]!;
    expect(out['ruleVersion']).toBe('R-2026.07');
    const by = (r: Result, name: string) => r.items.find((i) => i.parameterName === name);
    expect(by(a, '工作温度')).toMatchObject({ compareResult: 'covers', differenceStatus: 'match', riskLevel: 'low' });
    expect(by(a, '输出电压')).toMatchObject({ compareResult: 'equal', differenceStatus: 'match' });
    expect(by(a, '使能阈值')).toMatchObject({ compareResult: 'unknown', differenceStatus: 'unknown', riskLevel: 'medium' });
    expect(by(a, '静态电流')).toMatchObject({ differenceStatus: 'conditional' }); // 软约束数值不同 → 条件
    expect(a.counts).toMatchObject({ match: 2, unknown: 1, conditional: 1, mismatch: 0, hardMismatch: 0 });
    expect(by(b, '输出电压')).toMatchObject({ compareResult: 'configurable', differenceStatus: 'conditional' });
    expect(b.counts['configurable']).toBe(1);
  });

  it('硬约束范围变窄 → MISMATCH 高风险;客户约束(requirement)不满足也是 MISMATCH', async () => {
    const out = await call('part-substitution-assessment.compare-parameters', {
      candidates: [
        {
          candidateInternalPn: 'CN-DCDC-32V',
          pairs: [
            pair('输入电压范围', '4.5~40', '4.5~32', 'hard', { unit: 'V', requirement: '>= 40' }),
            pair('封装', 'TO-263-5', 'TO-263-5', 'hard'),
          ],
        },
      ],
    });
    const c = (out['results'] as Result[])[0]!;
    expect(c.items[0]).toMatchObject({ compareResult: 'narrower', differenceStatus: 'mismatch', riskLevel: 'high' });
    expect(c.items[1]).toMatchObject({ compareResult: 'equal', differenceStatus: 'match' });
    expect(c.counts).toMatchObject({ mismatch: 1, hardMismatch: 1, match: 1 });
  });

  it('硬约束相等但没有证据引用 → 不判 MATCH,降为 CONDITIONAL(硬约束项未经证据支持不得判 MATCH)', async () => {
    const out = await call('part-substitution-assessment.compare-parameters', {
      candidates: [{ candidateInternalPn: 'X', pairs: [{ parameterName: '封装', originalValue: 'TO-263-5', candidateValue: 'TO-263-5', constraintType: 'hard' }] }],
    });
    const x = (out['results'] as Result[])[0]!;
    expect(x.items[0]).toMatchObject({ compareResult: 'equal', differenceStatus: 'conditional' });
  });

  it('数值带单位/括号注记也认得:「5.0(固定)」「3A」「150 kHz」;生命周期按活跃度比', async () => {
    const out = await call('part-substitution-assessment.compare-parameters', {
      candidates: [{ candidateInternalPn: 'X', pairs: [pair('输出电压', '5.0(固定)', '5.0 V', 'hard'), pair('输出电流', '3A', '3', 'hard'), pair('开关频率', '150 kHz', '150', 'hard'), pair('生命周期', 'nrnd', 'active', 'soft')] }],
    });
    const x = (out['results'] as Result[])[0]!;
    // 生命周期不是数值:候选比原料更活(nrnd → active)算 covers → MATCH,替 NRND 料本就是为了这个
    expect(x.items.map((i) => i.differenceStatus)).toEqual(['match', 'match', 'match', 'match']);
    expect(x.items[3]?.compareResult).toBe('covers');
  });
});

describe('recommend:推荐等级四档', () => {
  it('硬约束 MISMATCH → 不推荐;有 UNKNOWN → 条件推荐;只有 configurable → 备选;全 MATCH → 推荐', async () => {
    const out = await call('part-substitution-assessment.recommend', {
      candidates: [
        { candidateInternalPn: 'C', counts: { match: 5, mismatch: 1, unknown: 0, conditional: 0, hardMismatch: 1, softMismatch: 0, configurable: 0 } },
        { candidateInternalPn: 'A', counts: { match: 5, mismatch: 0, unknown: 1, conditional: 0, hardMismatch: 0, softMismatch: 0, configurable: 0 } },
        { candidateInternalPn: 'B', counts: { match: 6, mismatch: 0, unknown: 0, conditional: 1, hardMismatch: 0, softMismatch: 0, configurable: 1 } },
        { candidateInternalPn: 'D', counts: { match: 7, mismatch: 0, unknown: 0, conditional: 0, hardMismatch: 0, softMismatch: 0, configurable: 0 } },
      ],
    });
    const results = out['results'] as Array<{ candidateInternalPn: string; recommendationLevel: string; riskLevel: string }>;
    expect(results.map((r) => [r.candidateInternalPn, r.recommendationLevel, r.riskLevel])).toEqual([
      ['C', 'not_recommended', 'high'],
      ['A', 'conditional', 'medium'],
      ['B', 'alternate', 'medium'],
      ['D', 'recommended', 'low'],
    ]);
  });

  it('既有 UNKNOWN 又有 configurable:UNKNOWN 优先 → 条件推荐(验证闭环前不给备选)', async () => {
    const out = await call('part-substitution-assessment.recommend', {
      candidates: [{ candidateInternalPn: 'E', counts: { match: 1, mismatch: 0, unknown: 1, conditional: 1, hardMismatch: 0, softMismatch: 0, configurable: 1 } }],
    });
    expect((out['results'] as Array<{ recommendationLevel: string }>)[0]?.recommendationLevel).toBe('conditional');
  });
});