/**
 * Property 36: 报告章节完备 的属性化测试（Report_Generator，Req 10.1）。
 *
 * 属性陈述：对任意风险评分、红线校验、费用测算与可接受性结论均已完成的评估，
 * `generate` 产出的报告*必*包含全部规定章节（项目概要与业务类型判定、风险总分与分级、
 * 风险热力图、各维度风险明细、Top 关键风险与红线校验结果、可接受性结论、应对方案、
 * 假设与信息缺口说明）；且未命中任一红线时，红线校验结果*必*明确标注为"无红线命中"。
 *
 * 本测试在生成器中构造"完整 Assessment"（评分/红线/费用/可接受性结论均已产生），
 * 覆盖启用/停用维度与指标、混合数据来源（含"智能体假设"）、有/无红线命中等形态，
 * 对 `generate` 施加上述章节完备性与"无红线命中"标注约束。
 *
 * Feature: outsourcing-risk-assessment, Property 36: 报告章节完备
 * Validates: Requirements 10.1
 */

import { describe, expect, it } from 'vitest';
import fc from 'fast-check';
import {
  ACCEPTABILITY_VALUES,
  REDLINE_STATUS_VALUES,
  type Acceptability,
  type Assessment,
  type RedlineResult,
  type RedlineStatus,
  type ScoringItem,
} from '../../domain/assessment.js';
import {
  DATA_PROVENANCE_VALUES,
  RISK_GRADE_VALUES,
  RISK_LEVEL_VALUES,
  type DataProvenance,
  type RiskGrade,
  type RiskLevel,
} from '../../domain/common.js';
import type { CostEstimate } from '../../domain/cost.js';
import type { Dimension, Indicator, Redline, RiskModel, ScoringRule } from '../../domain/model.js';
import { REGION_CN } from '../../domain/region.js';
import { generate, NO_REDLINE_HIT_LABEL } from '../report.js';

// ----------------------------------------------------------------------------
// 生成器：构造"评分/红线/费用/可接受性结论均已完成"的 Assessment
// ----------------------------------------------------------------------------

/** 合法 Indicator 须覆盖 Risk_Level 1-5（Req 11.3）；报告不读取规则文本。 */
const scoringRules: ScoringRule[] = (RISK_LEVEL_VALUES as readonly RiskLevel[]).map(
  (level) => ({ level, label: `L${level}`, description: `规则${level}` }),
);

const riskLevelArb = fc.constantFrom<RiskLevel>(...(RISK_LEVEL_VALUES as readonly RiskLevel[]));
const provenanceArb = fc.constantFrom<DataProvenance>(
  ...(DATA_PROVENANCE_VALUES as readonly DataProvenance[]),
);
const riskGradeArb = fc.constantFrom<RiskGrade>(...(RISK_GRADE_VALUES as readonly RiskGrade[]));
const acceptabilityArb = fc.constantFrom<Acceptability>(
  ...(ACCEPTABILITY_VALUES as readonly Acceptability[]),
);
const redlineStatusArb = fc.constantFrom<RedlineStatus>(
  ...(REDLINE_STATUS_VALUES as readonly RedlineStatus[]),
);

/** 置信度：[0,1] 两位小数（Req 4.6, 18.4）。 */
const confidenceArb = fc.integer({ min: 0, max: 100 }).map((n) => n / 100);
const weightArb = fc.double({ min: 0, max: 100, noNaN: true });
const moneyArb = fc.double({ min: 0, max: 1_000_000, noNaN: true });

interface RawIndicator {
  enabled: boolean;
  weight: number;
  riskLevel: RiskLevel;
  provenance: DataProvenance;
  confidence: number;
}

interface RawDimension {
  enabled: boolean;
  weight: number;
  indicators: RawIndicator[];
}

interface RawRedline {
  enabled: boolean;
  status: RedlineStatus;
}

const rawIndicatorArb: fc.Arbitrary<RawIndicator> = fc.record({
  enabled: fc.boolean(),
  weight: weightArb,
  riskLevel: riskLevelArb,
  provenance: provenanceArb,
  confidence: confidenceArb,
});

const rawDimensionArb: fc.Arbitrary<RawDimension> = fc.record({
  enabled: fc.boolean(),
  weight: weightArb,
  indicators: fc.array(rawIndicatorArb, { minLength: 0, maxLength: 4 }),
});

const rawRedlineArb: fc.Arbitrary<RawRedline> = fc.record({
  enabled: fc.boolean(),
  status: redlineStatusArb,
});

const costEstimateArb: fc.Arbitrary<CostEstimate> = fc
  .record({
    baseline: moneyArb,
    premiumLower: fc.double({ min: 0, max: 50, noNaN: true }),
    premiumDelta: fc.double({ min: 0, max: 50, noNaN: true }),
  })
  .map(({ baseline, premiumLower, premiumDelta }) => ({
    riskPremiumRange: { lower: premiumLower, upper: premiumLower + premiumDelta, unit: '百分比' },
    advanceInterest: 0,
    insuranceCost: 0,
    compensationReserve: 0,
    badDebtReserve: 0,
    baselineQuote: baseline,
    riskAdjustedQuote: baseline,
    breakdown: [],
  }));

interface AssessmentSpec {
  dimensions: RawDimension[];
  redlines: RawRedline[];
  riskScore: number;
  riskGrade: RiskGrade;
  acceptability: Acceptability;
  costEstimate: CostEstimate;
  /** 强制构造"无红线命中"情形，确保该分支被充分覆盖。 */
  forceNoHit: boolean;
}

const assessmentSpecArb: fc.Arbitrary<AssessmentSpec> = fc.record({
  dimensions: fc.array(rawDimensionArb, { minLength: 0, maxLength: 4 }),
  redlines: fc.array(rawRedlineArb, { minLength: 0, maxLength: 5 }),
  riskScore: fc.integer({ min: 0, max: 100 }),
  riskGrade: riskGradeArb,
  acceptability: acceptabilityArb,
  costEstimate: costEstimateArb,
  forceNoHit: fc.boolean(),
});

/**
 * 由随机规格构造一个"已完成"的 Assessment：
 * - 风险模型保留全部随机形态（启用/停用维度与指标、空指标维度、权重为 0 等）；
 * - 每个 Indicator 均有对应 ScoringItem（含来源/置信/三要素）；
 * - 每个**启用**红线均有对应的红线校验结果（满足红线校验完成条件）；
 * - riskScore/riskGrade/costEstimate/acceptability 均已产生。
 */
function buildAssessment(spec: AssessmentSpec): Assessment {
  const dimensions: Dimension[] = spec.dimensions.map((d, i) => ({
    id: `d${i}`,
    name: `维度${i}`,
    weight: d.weight,
    enabled: d.enabled,
    indicators: d.indicators.map(
      (ind, j): Indicator => ({
        id: `i${j}`,
        name: `指标${i}-${j}`,
        weight: ind.weight,
        enabled: ind.enabled,
        scoringRules,
        evidenceRequired: '',
        askPrompt: '',
      }),
    ),
  }));

  const redlines: Redline[] = spec.redlines.map((r, k) => ({
    id: `r${k}`,
    triggerCondition: `触发条件${k}`,
    consequence: `后果${k}`,
    enabled: r.enabled,
  }));

  const riskModel: RiskModel = {
    id: 'm1',
    name: '风险模型',
    businessType: '岗位外包',
    dimensions,
    redlines,
  };

  // 为每个指标构造评分项（含停用项；报告以对象引用映射，停用项不进入热力图/TopN）。
  const scoringItems: ScoringItem[] = spec.dimensions.flatMap((d, i) =>
    d.indicators.map((ind, j): ScoringItem => ({
      dimensionId: `d${i}`,
      indicatorId: `i${j}`,
      riskLevel: ind.riskLevel,
      score: ind.riskLevel * ind.weight,
      provenance: ind.provenance,
      confidence: ind.confidence,
      rationale: `判定依据${i}-${j}`,
      riskImpact: `风险影响${i}-${j}`,
      recommendation: `建议${i}-${j}`,
    })),
  );

  // 每个启用红线产生一个红线校验结果（满足红线校验完成条件）。
  const redlineResults: RedlineResult[] = spec.redlines
    .map((r, k): { enabled: boolean; result: RedlineResult } => {
      const status: RedlineStatus =
        spec.forceNoHit && r.status === '命中' ? '未命中' : r.status;
      const base: RedlineResult = { redlineId: `r${k}`, status };
      const result: RedlineResult =
        status === '命中'
          ? { ...base, triggeredCondition: `触发条件${k}`, evidenceData: `判定依据数据${k}` }
          : base;
      return { enabled: r.enabled, result };
    })
    .filter((entry) => entry.enabled)
    .map((entry) => entry.result);

  return {
    id: 'a1',
    projectDescription: '某外包项目风险评估',
    businessType: '岗位外包',
    industry: '制造业',
    region: REGION_CN,
    riskModel,
    scoringItems,
    riskScore: spec.riskScore,
    riskGrade: spec.riskGrade,
    redlineResults,
    costEstimate: spec.costEstimate,
    acceptability: spec.acceptability,
    metadata: {
      businessType: '岗位外包',
      industry: '制造业',
      region: REGION_CN,
      riskScore: spec.riskScore,
      riskGrade: spec.riskGrade,
      createdAt: '2024-01-01T00:00:00.000Z',
      assessorId: 'assessor-1',
    },
    createdAt: '2024-01-01T00:00:00.000Z',
    assessorId: 'assessor-1',
  };
}

// ----------------------------------------------------------------------------
// 属性测试
// ----------------------------------------------------------------------------

describe('Property 36: 报告章节完备 (Req 10.1)', () => {
  it('对任意已完成评估，报告含全部规定章节；未命中任一红线时明确标注"无红线命中"', () => {
    fc.assert(
      fc.property(assessmentSpecArb, (spec) => {
        const assessment = buildAssessment(spec);
        const report = generate(assessment);

        // 1) 全部八个规定章节均存在，且各章节标题非空。
        expect(report.projectOverview).toBeDefined();
        expect(report.projectOverview.title.length).toBeGreaterThan(0);
        expect(report.riskScoreGrade).toBeDefined();
        expect(report.riskScoreGrade.title.length).toBeGreaterThan(0);
        expect(report.heatmap).toBeDefined();
        expect(report.heatmap.title.length).toBeGreaterThan(0);
        expect(report.dimensionDetails).toBeDefined();
        expect(report.dimensionDetails.title.length).toBeGreaterThan(0);
        expect(report.keyRisksAndRedlines).toBeDefined();
        expect(report.keyRisksAndRedlines.title.length).toBeGreaterThan(0);
        expect(report.acceptabilityConclusion).toBeDefined();
        expect(report.acceptabilityConclusion.title.length).toBeGreaterThan(0);
        expect(report.responsePlan).toBeDefined();
        expect(report.responsePlan.title.length).toBeGreaterThan(0);
        expect(report.assumptionsAndGaps).toBeDefined();
        expect(report.assumptionsAndGaps.title.length).toBeGreaterThan(0);

        // 2) 章节内容与已完成评估一致的基本结构。
        expect(report.riskScoreGrade.riskScore).toBe(assessment.riskScore);
        expect(report.riskScoreGrade.riskGrade).toBe(assessment.riskGrade);
        expect(report.acceptabilityConclusion.acceptability).toBe(assessment.acceptability);
        expect(Array.isArray(report.heatmap.cells)).toBe(true);
        expect(report.dimensionDetails.dimensions.length).toBe(
          assessment.riskModel.dimensions.length,
        );
        expect(report.keyRisksAndRedlines.redlineResults.length).toBe(
          assessment.redlineResults.length,
        );
        expect(Array.isArray(report.assumptionsAndGaps.items)).toBe(true);

        // 3) 红线命中与"无红线命中"标注。
        const anyHit = assessment.redlineResults.some((r) => r.status === '命中');
        if (anyHit) {
          expect(report.keyRisksAndRedlines.hasRedlineHit).toBe(true);
          expect(report.keyRisksAndRedlines.hitRedlines.length).toBe(
            assessment.redlineResults.filter((r) => r.status === '命中').length,
          );
          expect(report.keyRisksAndRedlines.redlineSummary).not.toBe(NO_REDLINE_HIT_LABEL);
        } else {
          expect(report.keyRisksAndRedlines.hasRedlineHit).toBe(false);
          expect(report.keyRisksAndRedlines.hitRedlines.length).toBe(0);
          expect(report.keyRisksAndRedlines.redlineSummary).toBe(NO_REDLINE_HIT_LABEL);
        }
      }),
      { numRuns: 100 },
    );
  });
});