/**
 * SSA Phase P — Tracer Bullet 测试脚本
 *
 * 验证范围：
 * 1. ConfigLoader 加载 + Zod 校验 3 个 JSON 配置文件
 * 2. DecisionTableService 四维匹配（6 种场景）
 * 3. FlowTemplateService 模板填充 + EPV 截断
 * 4. Q→P 集成：mock ParsedQuery → WorkflowPlan
 *
 * 运行方式：npx tsx scripts/test-ssa-planner-pipeline.ts
 * 不依赖：数据库、LLM、R 引擎
 */

import { toolsRegistryLoader, decisionTablesLoader, flowTemplatesLoader, reloadAllConfigs } from '../src/modules/ssa/config/index.js';
import { decisionTableService } from '../src/modules/ssa/services/DecisionTableService.js';
import { flowTemplateService } from '../src/modules/ssa/services/FlowTemplateService.js';
import type { ParsedQuery } from '../src/modules/ssa/types/query.types.js';
import type { DataProfile } from '../src/modules/ssa/services/DataProfileService.js';

// ────────────────────────────────────────────
// 工具函数
// ────────────────────────────────────────────

let passed = 0;
let failed = 0;

function assert(condition: boolean, testName: string, detail?: string) {
  if (condition) {
    console.log(`  ✅ ${testName}`);
    passed++;
  } else {
    console.log(`  ❌ ${testName}${detail ? ` — ${detail}` : ''}`);
    failed++;
  }
}

function section(title: string) {
  console.log(`\n${'─'.repeat(60)}`);
  console.log(`📋 ${title}`);
  console.log('─'.repeat(60));
}

// ────────────────────────────────────────────
// Mock 数据
// ────────────────────────────────────────────

function makeParsedQuery(overrides: Partial<ParsedQuery>): ParsedQuery {
  return {
    goal: 'comparison',
    outcome_var: 'BP',
    outcome_type: 'continuous',
    predictor_vars: ['Drug'],
    predictor_types: ['binary'],
    grouping_var: 'Drug',
    design: 'independent',
    confidence: 0.9,
    reasoning: 'test',
    needsClarification: false,
    ...overrides,
  };
}

function makeMockProfile(outcomeVar: string, minEventCount: number): DataProfile {
  return {
    totalRows: 200,
    totalColumns: 10,
    columns: [
      {
        name: outcomeVar,
        type: 'categorical',
        missing: 0,
        missingPercent: 0,
        unique: 2,
        topValues: [
          { value: '0', count: 200 - minEventCount },
          { value: '1', count: minEventCount },
        ],
      },
      { name: 'Age', type: 'numeric', missing: 0, missingPercent: 0, unique: 50 },
      { name: 'Sex', type: 'categorical', missing: 0, missingPercent: 0, unique: 2 },
      { name: 'BMI', type: 'numeric', missing: 5, missingPercent: 2.5, unique: 80 },
      { name: 'Smoking', type: 'categorical', missing: 0, missingPercent: 0, unique: 2 },
      { name: 'SBP', type: 'numeric', missing: 0, missingPercent: 0, unique: 100 },
    ],
  } as any;
}

// ────────────────────────────────────────────
// 测试 1: ConfigLoader + Zod 校验
// ────────────────────────────────────────────

function testConfigLoading() {
  section('测试 1: ConfigLoader 加载 + Zod 校验');

  try {
    const tools = toolsRegistryLoader.get();
    assert(!!tools, '工具注册表加载成功');
    assert(tools.tools.length >= 7, `工具数量 >= 7（实际 ${tools.tools.length}）`);
    assert(tools.tools.every(t => /^ST_[A-Z_]+$/.test(t.code)), '所有工具 code 格式正确 (ST_XXX)');
    
    const toolCodes = tools.tools.map(t => t.code);
    assert(toolCodes.includes('ST_DESCRIPTIVE'), '包含 ST_DESCRIPTIVE');
    assert(toolCodes.includes('ST_T_TEST_IND'), '包含 ST_T_TEST_IND');
    assert(toolCodes.includes('ST_LOGISTIC_BINARY'), '包含 ST_LOGISTIC_BINARY');
  } catch (e: any) {
    assert(false, '工具注册表加载失败', e.message);
  }

  try {
    const rules = decisionTablesLoader.get();
    assert(!!rules, '决策表加载成功');
    assert(rules.length >= 9, `规则数量 >= 9（实际 ${rules.length}）`);
    assert(rules.every(r => r.id && r.goal && r.primaryTool), '所有规则含必填字段');
    
    const ids = rules.map(r => r.id);
    assert(ids.includes('DESC_ANY'), '包含 DESC_ANY 兜底规则');
    assert(ids.includes('COHORT_STUDY'), '包含 COHORT_STUDY 队列研究规则');
  } catch (e: any) {
    assert(false, '决策表加载失败', e.message);
  }

  try {
    const templates = flowTemplatesLoader.get();
    assert(!!templates, '流程模板加载成功');
    assert(templates.templates.length >= 5, `模板数量 >= 5（实际 ${templates.templates.length}）`);
    
    const ids = templates.templates.map(t => t.id);
    assert(ids.includes('standard_analysis'), '包含 standard_analysis 模板');
    assert(ids.includes('cohort_study_standard'), '包含 cohort_study_standard 模板');
    assert(ids.includes('descriptive_only'), '包含 descriptive_only 模板');
  } catch (e: any) {
    assert(false, '流程模板加载失败', e.message);
  }

  // 热更新测试
  try {
    const results = reloadAllConfigs();
    assert(results.every(r => r.success), `热更新全部成功（${results.length} 个文件）`);
  } catch (e: any) {
    assert(false, '热更新失败', e.message);
  }
}

// ────────────────────────────────────────────
// 测试 2: DecisionTableService 四维匹配
// ────────────────────────────────────────────

function testDecisionTableMatching() {
  section('测试 2: DecisionTableService 四维匹配');

  // 场景 A: 两组连续变量差异比较（独立样本）→ T 检验 + Mann-Whitney fallback
  const queryA = makeParsedQuery({
    goal: 'comparison',
    outcome_type: 'continuous',
    predictor_types: ['binary'],
    design: 'independent',
  });
  const matchA = decisionTableService.match(queryA);
  assert(matchA.primaryTool === 'ST_T_TEST_IND', `场景 A: Primary = ST_T_TEST_IND（实际 ${matchA.primaryTool}）`);
  assert(matchA.fallbackTool === 'ST_MANN_WHITNEY', `场景 A: Fallback = ST_MANN_WHITNEY（实际 ${matchA.fallbackTool}）`);
  assert(matchA.switchCondition !== null, '场景 A: 有 switchCondition（正态性检验）');
  assert(matchA.templateId === 'standard_analysis', `场景 A: Template = standard_analysis（实际 ${matchA.templateId}）`);

  // 场景 B: 配对设计
  const queryB = makeParsedQuery({
    goal: 'comparison',
    outcome_type: 'continuous',
    predictor_types: ['binary'],
    design: 'paired',
  });
  const matchB = decisionTableService.match(queryB);
  assert(matchB.primaryTool === 'ST_T_TEST_PAIRED', `场景 B: Primary = ST_T_TEST_PAIRED（实际 ${matchB.primaryTool}）`);
  assert(matchB.templateId === 'paired_analysis', `场景 B: Template = paired_analysis（实际 ${matchB.templateId}）`);

  // 场景 C: 分类 vs 分类 → 卡方检验
  const queryC = makeParsedQuery({
    goal: 'comparison',
    outcome_type: 'categorical',
    predictor_types: ['categorical'],
    design: 'independent',
  });
  const matchC = decisionTableService.match(queryC);
  assert(matchC.primaryTool === 'ST_CHI_SQUARE', `场景 C: Primary = ST_CHI_SQUARE（实际 ${matchC.primaryTool}）`);

  // 场景 D: 相关分析（连续 vs 连续）
  const queryD = makeParsedQuery({
    goal: 'correlation',
    outcome_type: 'continuous',
    predictor_types: ['continuous'],
    design: 'independent',
  });
  const matchD = decisionTableService.match(queryD);
  assert(matchD.primaryTool === 'ST_CORRELATION', `场景 D: Primary = ST_CORRELATION（实际 ${matchD.primaryTool}）`);

  // 场景 E: Logistic 回归
  const queryE = makeParsedQuery({
    goal: 'regression',
    outcome_type: 'binary',
    predictor_types: ['continuous'],
    design: 'independent',
  });
  const matchE = decisionTableService.match(queryE);
  assert(matchE.primaryTool === 'ST_LOGISTIC_BINARY', `场景 E: Primary = ST_LOGISTIC_BINARY（实际 ${matchE.primaryTool}）`);

  // 场景 F: 描述统计 fallback
  const queryF = makeParsedQuery({
    goal: 'descriptive',
    outcome_type: null,
    predictor_types: [],
  });
  const matchF = decisionTableService.match(queryF);
  assert(matchF.primaryTool === 'ST_DESCRIPTIVE', `场景 F: Primary = ST_DESCRIPTIVE（实际 ${matchF.primaryTool}）`);

  // 场景 G: 队列研究
  const queryG = makeParsedQuery({
    goal: 'cohort_study',
    outcome_type: 'binary',
    predictor_types: ['categorical'],
    design: 'independent',
  });
  const matchG = decisionTableService.match(queryG);
  assert(matchG.templateId === 'cohort_study_standard', `场景 G: Template = cohort_study_standard（实际 ${matchG.templateId}）`);

  // 场景 H: 未知 goal → 应该 fallback 到描述统计
  const queryH = makeParsedQuery({
    goal: 'descriptive' as any, // 模拟未匹配场景
    outcome_type: 'datetime' as any,
    predictor_types: ['datetime' as any],
  });
  const matchH = decisionTableService.match(queryH);
  assert(matchH.primaryTool === 'ST_DESCRIPTIVE', `场景 H: 无精确匹配 → Fallback ST_DESCRIPTIVE（实际 ${matchH.primaryTool}）`);
}

// ────────────────────────────────────────────
// 测试 3: FlowTemplateService 模板填充
// ────────────────────────────────────────────

function testFlowTemplateFilling() {
  section('测试 3: FlowTemplateService 模板填充');

  // 场景 A: standard_analysis（有 fallback → 3 步）
  const queryA = makeParsedQuery({
    goal: 'comparison',
    outcome_type: 'continuous',
    predictor_types: ['binary'],
    outcome_var: 'BP',
    predictor_vars: ['Drug'],
    grouping_var: 'Drug',
  });
  const matchA = decisionTableService.match(queryA);
  const fillA = flowTemplateService.fill(matchA, queryA);
  assert(fillA.steps.length === 3, `场景 A: 3 步流程（实际 ${fillA.steps.length}）`);
  assert(fillA.steps[0].toolCode === 'ST_DESCRIPTIVE', `场景 A 步骤 1: ST_DESCRIPTIVE（实际 ${fillA.steps[0].toolCode}）`);
  assert(fillA.steps[1].toolCode === 'ST_T_TEST_IND', `场景 A 步骤 2: ST_T_TEST_IND（实际 ${fillA.steps[1].toolCode}）`);
  assert(fillA.steps[2].toolCode === 'ST_MANN_WHITNEY', `场景 A 步骤 3: ST_MANN_WHITNEY（实际 ${fillA.steps[2].toolCode}）`);
  assert(fillA.steps[2].isSensitivity === true, '场景 A 步骤 3: isSensitivity = true');
  assert(fillA.epvWarning === null, '场景 A: 无 EPV 警告');

  // 场景 B: descriptive_only（无 fallback → 1 步）
  const queryB = makeParsedQuery({
    goal: 'descriptive',
    outcome_type: null,
    predictor_types: [],
  });
  const matchB = decisionTableService.match(queryB);
  const fillB = flowTemplateService.fill(matchB, queryB);
  assert(fillB.steps.length === 1, `场景 B: 1 步流程（实际 ${fillB.steps.length}）`);
  assert(fillB.steps[0].toolCode === 'ST_DESCRIPTIVE', '场景 B: ST_DESCRIPTIVE');

  // 场景 C: 队列研究 → 3 步 (Table 1/2/3)
  const queryC = makeParsedQuery({
    goal: 'cohort_study',
    outcome_var: 'Event',
    outcome_type: 'binary',
    predictor_vars: ['Age', 'Sex', 'BMI', 'Smoking', 'SBP'],
    predictor_types: ['continuous', 'binary', 'continuous', 'binary', 'continuous'],
    grouping_var: 'Drug',
    design: 'independent',
  });
  const matchC = decisionTableService.match(queryC);
  const fillC = flowTemplateService.fill(matchC, queryC);
  assert(fillC.steps.length === 3, `场景 C: 队列研究 3 步（实际 ${fillC.steps.length}）`);
  assert(fillC.steps.length > 0 && fillC.steps[0].name.includes('表1'), `场景 C 步骤 1: 表1（实际 "${fillC.steps[0]?.name ?? 'N/A'}"）`);
  assert(fillC.steps.length > 1 && fillC.steps[1].name.includes('表2'), `场景 C 步骤 2: 表2（实际 "${fillC.steps[1]?.name ?? 'N/A'}"）`);
  assert(fillC.steps.length > 2 && fillC.steps[2].name.includes('表3'), `场景 C 步骤 3: 表3（实际 "${fillC.steps[2]?.name ?? 'N/A'}"）`);

  // 场景 D: EPV 截断 — 30 个事件 / 10 = 最多 3 个变量
  const queryD = makeParsedQuery({
    goal: 'cohort_study',
    outcome_var: 'Event',
    outcome_type: 'binary',
    predictor_vars: ['Age', 'Sex', 'BMI', 'Smoking', 'SBP', 'HR', 'Chol', 'LDL'],
    predictor_types: ['continuous', 'binary', 'continuous', 'binary', 'continuous', 'continuous', 'continuous', 'continuous'],
    grouping_var: 'Drug',
    design: 'independent',
  });
  const profileD = makeMockProfile('Event', 30); // 只有 30 个 event → max 3 vars
  const matchD = decisionTableService.match(queryD);
  const fillD = flowTemplateService.fill(matchD, queryD, profileD);

  const table3Step = fillD.steps.find(s => s.name.includes('表3'));
  if (table3Step) {
    const predictors = table3Step.params.predictors as string[] | undefined;
    if (predictors) {
      assert(predictors.length <= 3, `场景 D EPV 截断: 自变量 <= 3（实际 ${predictors.length}，原始 8）`);
    } else {
      assert(false, '场景 D EPV 截断: 未找到 predictors 参数');
    }
  } else {
    assert(false, '场景 D: 未找到表3 步骤');
  }
  assert(fillD.epvWarning !== null, `场景 D: 有 EPV 警告（${fillD.epvWarning?.substring(0, 40)}...）`);

  // 场景 E: 配对分析 → 2 步（无 sensitivity）
  const queryE = makeParsedQuery({
    goal: 'comparison',
    outcome_type: 'continuous',
    predictor_types: ['binary'],
    design: 'paired',
    outcome_var: 'BP_after',
    predictor_vars: ['BP_before'],
  });
  const matchE = decisionTableService.match(queryE);
  const fillE = flowTemplateService.fill(matchE, queryE);
  assert(fillE.steps.length === 2, `场景 E: 配对分析 2 步（实际 ${fillE.steps.length}）`);
  assert(fillE.steps.every(s => !s.isSensitivity), '场景 E: 无敏感性分析步骤');
}

// ────────────────────────────────────────────
// 测试 4: PlannedTrace 完整性
// ────────────────────────────────────────────

function testPlannedTrace() {
  section('测试 4: PlannedTrace 数据完整性');

  const query = makeParsedQuery({
    goal: 'comparison',
    outcome_type: 'continuous',
    predictor_types: ['binary'],
    design: 'independent',
    outcome_var: 'BP',
    predictor_vars: ['Drug'],
    grouping_var: 'Drug',
  });

  const match = decisionTableService.match(query);
  const fill = flowTemplateService.fill(match, query);

  // PlannedTrace 应具备的信息
  assert(match.rule.id !== '', 'PlannedTrace: matchedRule 非空');
  assert(match.primaryTool === 'ST_T_TEST_IND', `PlannedTrace: primaryTool = ST_T_TEST_IND`);
  assert(match.fallbackTool === 'ST_MANN_WHITNEY', `PlannedTrace: fallbackTool = ST_MANN_WHITNEY`);
  assert(match.switchCondition !== null, 'PlannedTrace: switchCondition 非空');
  assert(fill.templateId === 'standard_analysis', 'PlannedTrace: templateUsed = standard_analysis');
  assert(match.matchScore > 0, `PlannedTrace: matchScore > 0（实际 ${match.matchScore}）`);

  // 确认参数正确传递
  const primaryStep = fill.steps.find(s => s.role === 'primary_test');
  assert(!!primaryStep, 'Primary step 存在');
  if (primaryStep) {
    assert(primaryStep.params.group_var === 'Drug' || primaryStep.params.value_var === 'BP',
      `Primary step 参数包含正确变量`);
  }
}

// ────────────────────────────────────────────
// 运行所有测试
// ────────────────────────────────────────────

console.log('\n🧪 SSA Phase P — Tracer Bullet 测试\n');
console.log('测试范围：ConfigLoader → DecisionTable → FlowTemplate → PlannedTrace');
console.log('依赖项：无（不需要数据库、LLM、R 引擎）\n');

try {
  testConfigLoading();
  testDecisionTableMatching();
  testFlowTemplateFilling();
  testPlannedTrace();
} catch (e: any) {
  console.error(`\n💥 测试过程中发生未捕获异常：${e.message}`);
  console.error(e.stack);
  failed++;
}

// 汇总
console.log(`\n${'═'.repeat(60)}`);
console.log(`📊 测试结果汇总：${passed} 通过 / ${failed} 失败 / ${passed + failed} 总计`);
if (failed === 0) {
  console.log('🎉 全部通过！P 层 Pipeline 验证成功。');
} else {
  console.log(`⚠️ 有 ${failed} 个测试失败，请检查上方输出。`);
}
console.log('═'.repeat(60));

process.exit(failed > 0 ? 1 : 0);