#!/usr/bin/env node
const fs = require('fs');
const path = require('path');

const ROOT = path.resolve(__dirname, '..');
const OUTPUTS = path.join(ROOT, 'outputs');

function main() {
  const args = parseArgs(process.argv.slice(2));
  const outputDir = path.resolve(args.output || process.env.TIHAO_PROOF_GAP_CLOSURE_OUTPUT || path.join(OUTPUTS, `proof-gap-closure-${Date.now()}`));
  const overnightFile = args.overnight || process.env.TIHAO_OVERNIGHT_AGGREGATE || bestOvernightAggregate(OUTPUTS) || latestFile(OUTPUTS, 'aggregate-summary.json');
  const historyFile = args.historyAudit || process.env.TIHAO_HISTORY_AUDIT || bestHistoryAudit(OUTPUTS) || latestFile(OUTPUTS, 'historical-dataset-audit.json');
  const customerEffectFile = args.customerEffect || process.env.TIHAO_CUSTOMER_EFFECT_SUMMARY || bestCustomerEffectSummary(OUTPUTS, historyFile, ROOT) || latestFile(OUTPUTS, 'customer-effect-summary.json');
  const videoAbFile = args.videoAb || process.env.TIHAO_VIDEO_AB_SUMMARY || latestFile(OUTPUTS, 'video-hit-rate-summary.json');
  const videoAbPreflightFile = args.videoAbPreflight || process.env.TIHAO_VIDEO_AB_PREFLIGHT_SUMMARY || latestFile(OUTPUTS, 'video-hit-rate-preflight-summary.json');
  const materialBridgeFile = args.materialBridge || process.env.TIHAO_MATERIAL_BRIDGE_SUMMARY || latestFile(OUTPUTS, 'local-seed-to-intake-worklist-summary.json');
  const summary = buildClosureSummary({
    root: ROOT,
    history: readJsonArg(historyFile),
    intakeReadiness: readJsonArg(args.intakeReadiness || process.env.TIHAO_INTAKE_READINESS_SUMMARY || latestFile(OUTPUTS, 'intake-readiness-summary.json')),
    videoReadiness: readJsonArg(args.videoReadiness || process.env.TIHAO_VIDEO_RESOURCE_READINESS_SUMMARY || latestFile(OUTPUTS, 'video-resource-readiness-summary.json')),
    videoAb: readJsonArg(videoAbFile),
    videoAbPreflight: readJsonArg(videoAbPreflightFile),
    overnight: readJsonArg(overnightFile),
    customerEffect: readJsonArg(customerEffectFile),
    materialBridge: readJsonArg(materialBridgeFile),
    sourceFiles: {
      overnight: relIfInside(ROOT, overnightFile),
      history: relIfInside(ROOT, historyFile),
      customerEffect: relIfInside(ROOT, customerEffectFile),
      videoAb: relIfInside(ROOT, videoAbFile),
      videoAbPreflight: relIfInside(ROOT, videoAbPreflightFile),
      materialBridge: relIfInside(ROOT, materialBridgeFile)
    }
  });

  fs.mkdirSync(outputDir, { recursive: true });
  const jsonPath = path.join(outputDir, 'proof-gap-closure-summary.json');
  const reportPath = path.join(outputDir, 'proof-gap-closure-report.md');
  fs.writeFileSync(jsonPath, JSON.stringify(summary, null, 2), 'utf8');
  fs.writeFileSync(reportPath, withBom(renderReport(summary)), 'utf8');
  console.log(JSON.stringify({
    outputDir,
    json: jsonPath,
    report: reportPath,
    complete: summary.complete,
    closedCount: summary.closedCount,
    openCount: summary.openCount
  }, null, 2));
  if ((args.strict || process.env.TIHAO_PROOF_GAP_CLOSURE_STRICT === 'true') && !summary.complete) {
    process.exitCode = 2;
  }
}

function buildClosureSummary({ root, history, intakeReadiness, videoReadiness, videoAb, videoAbPreflight, overnight, customerEffect, materialBridge, sourceFiles = {} }) {
  const intakeMissingRequirements = getIntakeMissingRequirements(intakeReadiness);
  const historyMissingRequirements = getHistoryMissingRequirements(history);
  const videoResourceMissingRequirements = getVideoResourceMissingRequirements(videoReadiness);
  const videoAbMissingRequirements = getVideoAbMissingRequirements(videoAb, videoAbPreflight);
  const customerEffectMissingRequirements = getCustomerEffectMissingRequirements(customerEffect, history, sourceFiles, root);
  const materialBridgeByGap = buildMaterialBridgeByGap(materialBridge);
  const rows = [
    closeRow({
      id: 'intake-readiness',
      title: '真实材料 Intake Readiness 预审',
      closed: intakeMissingRequirements.length === 0,
      evidence: intakeReadiness ? `overallReady=${Boolean(intakeReadiness.acceptance?.overallReady)}, failureCount=${intakeReadiness.failureCount ?? 'unknown'}, history=${Boolean(intakeReadiness.acceptance?.historyReady)}, video=${Boolean(intakeReadiness.acceptance?.videoReady)}, review=${Boolean(intakeReadiness.acceptance?.reviewMetricsReady)}, customerEffect=${Boolean(intakeReadiness.acceptance?.customerEffectReady)}` : 'missing intake-readiness-summary.json',
      required: 'intake:readiness 必须显示 overallReady=true 且 failureCount=0。',
      command: 'npm run intake:readiness -- --data-pack outputs\\data-intake-pack-latest --video-pack outputs\\video-intake-pack-latest --output outputs\\intake-readiness-latest',
      expectedArtifact: 'outputs/intake-readiness-latest/intake-readiness-summary.json',
      missingProofRequirements: intakeMissingRequirements
    }),
    closeRow({
      id: 'historical-dataset',
      title: '真实历史 Brief 数据集',
      closed: historyMissingRequirements.length === 0,
      evidence: history ? `briefCount=${history.briefCount || 0}, readyForCustomerEffectProof=${Boolean(history.acceptance?.readyForCustomerEffectProof)}` : 'missing historical-dataset-audit.json',
      required: 'history:audit 必须显示 readyForCustomerEffectProof=true。',
      command: 'npm run history:from-csv -- --input <历史数据CSV> --output <history-dataset目录>；npm run history:audit -- --input <history-dataset目录> --output <历史审计输出目录> --strict',
      expectedArtifact: '<历史审计输出目录>/historical-dataset-audit.json',
      missingProofRequirements: historyMissingRequirements,
      materialBridge: materialBridgeByGap['historical-dataset']
    }),
    closeRow({
      id: 'video-real-candidate',
      title: '真实候选视频资源',
      closed: videoResourceMissingRequirements.length === 0,
      evidence: videoReadiness ? `realReference=${videoReadiness.counts?.realReferenceRows || 0}, realCandidate=${videoReadiness.counts?.realCandidateRows || 0}, failureCount=${videoReadiness.failureCount ?? 'unknown'}` : 'missing video-resource-readiness-summary.json',
      required: 'video:resource-readiness 必须 readyForVideoAbPreflight=true 且 failureCount=0。',
      command: 'npm run video:resource-readiness -- --input <video-resource-template.csv> --output <视频资源审计输出目录> --strict',
      expectedArtifact: '<视频资源审计输出目录>/video-resource-readiness-summary.json',
      missingProofRequirements: videoResourceMissingRequirements
    }),
    closeRow({
      id: 'video-ab-live-proof',
      title: '真实视频 A/B live proof',
      closed: videoAbMissingRequirements.length === 0,
      evidence: formatVideoAbEvidence(videoAb, videoAbPreflight),
      required: 'acceptance:video-ab 必须在真实 provider 和真实视频资源下通过。',
      command: 'npm run acceptance:video-ab',
      expectedArtifact: '<视频A/B输出目录>/video-hit-rate-summary.json',
      missingProofRequirements: videoAbMissingRequirements,
      materialBridge: materialBridgeByGap['video-ab-live-proof']
    }),
    closeRow({
      id: 'live-provider-overnight-proof',
      title: '真实 live/provider 长跑证明',
      closed: isClosableOvernightAggregate(overnight),
      evidence: overnight ? `liveEnabled=${Boolean(overnight.manifest?.liveEnabled)}, overallPass=${Boolean(overnight.acceptance?.overallPass)}, failureCount=${overnight.failureCount ?? 'unknown'}, failedGateCount=${overnight.acceptance?.failedGateCount ?? overnight.failedGateCount ?? 'unknown'}, source=${sourceFiles.overnight || 'unknown'}` : 'missing aggregate-summary.json',
      required: 'overnight aggregate 必须 liveEnabled=true、overallPass=true、failureCount=0、failedGateCount=0。',
      command: 'npm run longrun:readiness；真实 provider 就绪后运行 npm run overnight:quality',
      expectedArtifact: '<overnight输出目录>/aggregate-summary.json',
      missingProofRequirements: getOvernightMissingRequirements(overnight)
    }),
    closeRow({
      id: 'manual-review-and-customer-effect',
      title: '商务复核和客户效果证明',
      closed: customerEffectMissingRequirements.length === 0,
      evidence: customerEffect ? `overallPass=${Boolean(customerEffect.acceptance?.overallPass)}, customerSelectedRate=${customerEffect.customerSelectedRate ?? 'unknown'}, referenceCustomerSelectedRate=${customerEffect.referenceCustomerSelectedRate ?? 'unknown'}, manualSupplementReductionRate=${customerEffect.manualSupplementReductionRate ?? 'unknown'}, historyAuditPath=${customerEffect.historyAuditPath || 'missing'}` : 'missing customer-effect-summary.json',
      required: 'customer-effect:audit 必须 overallPass=true，并绑定当前通过的 history:audit、客户选择、参考链路和人工补号量。',
      command: 'npm run review:metrics -- --input <已标注CSV> --output <复核指标输出目录> --strict；npm run customer-effect:audit -- --review-csv <已标注CSV> --history-audit <historical-dataset-audit.json> --current-manual-supplement-count <本轮人工补号量> --output <客户效果输出目录> --strict',
      expectedArtifact: '<客户效果输出目录>/customer-effect-summary.json',
      missingProofRequirements: customerEffectMissingRequirements,
      materialBridge: materialBridgeByGap['manual-review-and-customer-effect']
    })
  ];
  const precheckRows = rows.filter(row => row.id === 'intake-readiness');
  const businessRows = rows.filter(row => row.id !== 'intake-readiness');
  const businessClosedCount = businessRows.filter(row => row.status === 'closed').length;
  const businessOpenCount = businessRows.length - businessClosedCount;
  const precheckClosedCount = precheckRows.filter(row => row.status === 'closed').length;
  const precheckOpenCount = precheckRows.length - precheckClosedCount;
  return {
    generatedAt: new Date().toISOString(),
    root,
    sourceFiles,
    complete: businessOpenCount === 0,
    intakeReady: precheckOpenCount === 0,
    closedCount: businessClosedCount,
    openCount: businessOpenCount,
    businessClosedCount,
    businessOpenCount,
    totalRows: rows.length,
    businessGapCount: businessRows.length,
    precheckRowCount: precheckRows.length,
    precheckClosedCount,
    precheckOpenCount,
    videoAbPreflightReadyForVideoAb: Boolean(videoAbPreflight?.readyForVideoAb),
    videoAbPreflightFailureCount: videoAbPreflight ? Number(videoAbPreflight.failureCount ?? 0) : null,
    countSemantics: {
      openCount: 'business_gap_open_count_excludes_precheck_rows',
      closedCount: 'business_gap_closed_count_excludes_precheck_rows',
      businessOpenCount: 'same_as_openCount',
      businessClosedCount: 'same_as_closedCount',
      precheckOpenCount: 'precheck_rows_reported_separately'
    },
    rows,
    guardrails: [
      'closure 审计只承认真实审计产物，不承认 sample、smoke、模板或 provider fallback。',
      'intake readiness 是补证预审，不计入业务缺口 openCount；但未通过时会提示模板仍是半成品。',
      '任一缺口为 open 时，不得宣布长期优化目标完成。',
      '不得在任何输入、报告或日志中写入 sessionToken、Authorization、模型 token 或 npm token。'
    ]
  };
}

function isRealVideoAbProof(videoAb) {
  return getVideoAbMissingRequirements(videoAb).length === 0;
}

function buildMaterialBridgeByGap(materialBridge) {
  const result = {};
  for (const item of materialBridge?.proofGapMaterialBridge || []) {
    if (!item || !item.id) continue;
    result[item.id] = {
      materialFound: Boolean(item.materialFound),
      connectedDraft: item.connectedDraft || '',
      draftRowCount: item.draftRowCount ?? null,
      referenceSeedRowCount: item.referenceSeedRowCount ?? null,
      videoCandidateSeedRowCount: item.videoCandidateSeedRowCount ?? null,
      canCloseProofGap: Boolean(item.canCloseProofGap),
      whyNotClosed: Array.isArray(item.whyNotClosed) ? item.whyNotClosed : []
    };
  }
  return result;
}

function getVideoAbMissingRequirements(videoAb, videoAbPreflight = null) {
  const missing = [];
  if (!videoAb) {
    missing.push('missing video-hit-rate-summary.json');
  } else {
    if (!videoAb.acceptance?.passed) missing.push('acceptance.passed=true');
    const context = videoAb.proofContext || {};
    if (context.mode !== 'live') missing.push('proofContext.mode=live');
    if (context.collectionMode !== 'live') missing.push('proofContext.collectionMode=live');
    if (context.generatedBy !== 'acceptance:video-ab') missing.push('proofContext.generatedBy=acceptance:video-ab');
    if (context.requiresRuntimeCredential !== true) missing.push('proofContext.requiresRuntimeCredential=true');
    if (context.requiresVocSocialProvider !== true) missing.push('proofContext.requiresVocSocialProvider=true');
    if (context.requiresVideoAnalysisProvider !== true) missing.push('proofContext.requiresVideoAnalysisProvider=true');
    if (videoAb.enhanced?.provider?.evidence?.providerStatus !== 'ok') missing.push('enhanced.provider.evidence.providerStatus=ok');
  }
  if (missing.length) {
    missing.push(...getVideoAbPreflightMissingRequirements(videoAbPreflight));
  }
  return uniqueList(missing);
}

function getVideoAbPreflightMissingRequirements(videoAbPreflight) {
  if (!videoAbPreflight) return [];
  const missing = [];
  if (videoAbPreflight.proofLevel !== 'not_business_proof') missing.push('videoAbPreflight.proofLevel=not_business_proof');
  if (videoAbPreflight.canCloseProofGap !== false) missing.push('videoAbPreflight.canCloseProofGap=false');
  if (videoAbPreflight.proofContext?.generatedBy !== 'acceptance:video-ab-preflight') missing.push('videoAbPreflight.proofContext.generatedBy=acceptance:video-ab-preflight');
  if (videoAbPreflight.readyForVideoAb !== true) {
    missing.push('videoAbPreflight.readyForVideoAb=true');
    for (const requirement of videoAbPreflight.missingProofRequirements || []) {
      missing.push(`videoAbPreflight.${requirement}`);
    }
  }
  return missing;
}

function formatVideoAbEvidence(videoAb, videoAbPreflight) {
  const liveEvidence = videoAb
    ? `passed=${Boolean(videoAb.acceptance?.passed)}, mode=${videoAb.proofContext?.mode || 'unknown'}, collectionMode=${videoAb.proofContext?.collectionMode || 'unknown'}, generatedBy=${videoAb.proofContext?.generatedBy || 'unknown'}, provider=${videoAb.enhanced?.provider?.evidence?.providerStatus || 'unknown'}, strongDelta=${videoAb.delta?.strong ?? 'unknown'}, evidenceDelta=${videoAb.delta?.evidenceCards ?? 'unknown'}`
    : 'missing video-hit-rate-summary.json';
  if (!videoAbPreflight || getVideoAbMissingRequirements(videoAb).length === 0) return liveEvidence;
  const runtime = videoAbPreflight.runtime || {};
  const preflightEvidence = [
    `preflight.readyForVideoAb=${Boolean(videoAbPreflight.readyForVideoAb)}`,
    `preflight.failureCount=${videoAbPreflight.failureCount ?? 'unknown'}`,
    `preflight.generatedBy=${videoAbPreflight.proofContext?.generatedBy || 'unknown'}`,
    `preflight.proofLevel=${videoAbPreflight.proofLevel || 'unknown'}`,
    `preflight.canCloseProofGap=${Boolean(videoAbPreflight.canCloseProofGap)}`,
    `runtimeCredentialPresent=${Boolean(runtime.runtimeCredentialPresent)}`,
    `companyResolved=${Boolean(runtime.companyResolved)}`,
    `vocSocialProviderTokenPresent=${Boolean(runtime.vocSocialProviderTokenPresent)}`,
    `videoAnalysisTokenPresent=${Boolean(runtime.videoAnalysisTokenPresent)}`
  ].join(', ');
  return `${liveEvidence}; ${preflightEvidence}`;
}

function getIntakeMissingRequirements(intakeReadiness) {
  const missing = [];
  if (!intakeReadiness) return ['missing intake-readiness-summary.json'];
  const acceptance = intakeReadiness.acceptance || {};
  if (acceptance.overallReady !== true) missing.push('acceptance.overallReady=true');
  if (Number(intakeReadiness.failureCount || 0) !== 0) missing.push('failureCount=0');
  if (acceptance.historyReady !== true) missing.push('acceptance.historyReady=true');
  if (acceptance.videoReady !== true) missing.push('acceptance.videoReady=true');
  if (acceptance.reviewMetricsReady !== true) missing.push('acceptance.reviewMetricsReady=true');
  if (acceptance.customerEffectReady !== true) missing.push('acceptance.customerEffectReady=true');
  return missing;
}

function getHistoryMissingRequirements(history) {
  const missing = [];
  if (!history) return ['missing historical-dataset-audit.json'];
  const acceptance = history.acceptance || {};
  if (history.acceptance?.readyForCustomerEffectProof !== true) missing.push('acceptance.readyForCustomerEffectProof=true');
  if (Number(history.briefCount || 0) < 5) missing.push('briefCount>=5');
  if (acceptance.parseOk !== true) missing.push('acceptance.parseOk=true');
  if (acceptance.minBriefsMet !== true) missing.push('acceptance.minBriefsMet=true');
  if (acceptance.allHaveBriefText !== true) missing.push('acceptance.allHaveBriefText=true');
  if (acceptance.allHaveManualFinalList !== true) missing.push('acceptance.allHaveManualFinalList=true');
  if (acceptance.allHaveCustomerDecision !== true) missing.push('acceptance.allHaveCustomerDecision=true');
  if (acceptance.allHaveFeedbackReason !== true) missing.push('acceptance.allHaveFeedbackReason=true');
  if (acceptance.allHaveManualSupplementBaseline !== true) missing.push('acceptance.allHaveManualSupplementBaseline=true');
  if (acceptance.categoryCoverageMet !== true) missing.push('acceptance.categoryCoverageMet=true');
  if (Number(history.missingCriticalCount || 0) !== 0) missing.push('missingCriticalCount=0');
  if (!Array.isArray(history.items) || history.items.length < 5) missing.push('items.length>=5');
  if (Number(history.withManualFinalList || 0) < 5) missing.push('withManualFinalList>=5');
  if (Number(history.withCustomerDecision || 0) < 5) missing.push('withCustomerDecision>=5');
  if (Number(history.withRejectionReason || 0) < 1) missing.push('withRejectionReason>=1');
  if (Number(history.withManualSupplementBaseline || 0) < 5) missing.push('withManualSupplementBaseline>=5');
  return missing;
}

function getVideoResourceMissingRequirements(videoReadiness) {
  const missing = [];
  if (!videoReadiness) return ['missing video-resource-readiness-summary.json'];
  if (videoReadiness.acceptance?.readyForVideoAbPreflight !== true) missing.push('acceptance.readyForVideoAbPreflight=true');
  if (Number(videoReadiness.failureCount || 0) !== 0) missing.push('failureCount=0');
  if (Number(videoReadiness.counts?.realReferenceRows || 0) < 1) missing.push('counts.realReferenceRows>=1');
  if (Number(videoReadiness.counts?.realCandidateRows || 0) < 1) missing.push('counts.realCandidateRows>=1');
  if (Number(videoReadiness.counts?.videoUrlRows || 0) < 1) missing.push('counts.videoUrlRows>=1');
  return missing;
}

function getOvernightMissingRequirements(overnight) {
  const missing = [];
  if (!overnight) return ['missing aggregate-summary.json'];
  if (overnight.manifest?.liveEnabled !== true) missing.push('manifest.liveEnabled=true');
  if (overnight.acceptance?.overallPass !== true) missing.push('acceptance.overallPass=true');
  if (Number(overnight.failureCount || 0) !== 0) missing.push('failureCount=0');
  if (Number(overnight.acceptance?.failedGateCount ?? overnight.failedGateCount ?? 0) !== 0) missing.push('acceptance.failedGateCount=0');
  if (overnight.acceptance?.tokenLeak === true) missing.push('acceptance.tokenLeak=false');
  return missing;
}

function getCustomerEffectMissingRequirements(customerEffect, history, sourceFiles = {}, root = process.cwd()) {
  const missing = [];
  if (!customerEffect) return ['missing customer-effect-summary.json'];
  const acceptance = customerEffect.acceptance || {};
  if (acceptance.overallPass !== true) missing.push('acceptance.overallPass=true');
  if (acceptance.reviewMetricsOverallUsable !== true) missing.push('acceptance.reviewMetricsOverallUsable=true');
  if (acceptance.customerSelectedRateMeasured !== true) missing.push('acceptance.customerSelectedRateMeasured=true');
  if (acceptance.customerSelectedRate30Pass !== true) missing.push('acceptance.customerSelectedRate30Pass=true');
  if (acceptance.referenceCustomerSelectedRateMeasured !== true) missing.push('acceptance.referenceCustomerSelectedRateMeasured=true');
  if (acceptance.referenceCustomerSelectedRate40Pass !== true) missing.push('acceptance.referenceCustomerSelectedRate40Pass=true');
  if (acceptance.historyReadyForCustomerEffectProof !== true) missing.push('acceptance.historyReadyForCustomerEffectProof=true');
  if (acceptance.manualSupplementBaselineAvailable !== true) missing.push('acceptance.manualSupplementBaselineAvailable=true');
  if (acceptance.currentManualSupplementAvailable !== true) missing.push('acceptance.currentManualSupplementAvailable=true');
  if (acceptance.manualSupplementReduction50Pass !== true) missing.push('acceptance.manualSupplementReduction50Pass=true');
  if (!customerEffect.reviewPath) missing.push('reviewPath=provided');
  if (!customerEffect.historyAuditPath) missing.push('historyAuditPath=provided');
  if (sourceFiles.history && customerEffect.historyAuditPath && !samePath(root, customerEffect.historyAuditPath, sourceFiles.history)) {
    missing.push('historyAuditPath=current-history-audit');
  }
  if (!history) {
    missing.push('currentHistoryAudit=present');
  } else {
    for (const requirement of getHistoryMissingRequirements(history)) {
      missing.push(`currentHistoryAudit.${requirement}`);
    }
  }
  if (!Number.isFinite(Number(customerEffect.customerSelectedRate))) missing.push('customerSelectedRate=number');
  if (!Number.isFinite(Number(customerEffect.referenceCustomerSelectedRate))) missing.push('referenceCustomerSelectedRate=number');
  if (!Number.isFinite(Number(customerEffect.manualSupplementReductionRate))) missing.push('manualSupplementReductionRate=number');
  if (customerEffect.manualSupplementBaseline?.available !== true) missing.push('manualSupplementBaseline.available=true');
  if (customerEffect.currentManualSupplement?.available !== true) missing.push('currentManualSupplement.available=true');
  return uniqueList([...(customerEffect.missingEvidence || []), ...missing]);
}

function closeRow({ id, title, closed, evidence, required, command, expectedArtifact, missingProofRequirements = [], materialBridge = null }) {
  const normalizedMissing = closed ? [] : uniqueList(missingProofRequirements);
  return {
    id,
    title,
    status: closed ? 'closed' : 'open',
    evidence,
    missingProofRequirements: normalizedMissing,
    required,
    command,
    expectedArtifact,
    ...(materialBridge ? { materialBridge } : {}),
    next: closed ? '保持证据链并纳入 evidence:index。' : `${command}；产物：${expectedArtifact}`
  };
}

function uniqueList(values) {
  return Array.from(new Set((Array.isArray(values) ? values : []).map(value => String(value || '').trim()).filter(Boolean)));
}

function renderReport(summary) {
  return [
    '# 提号真实证明缺口关闭审计',
    '',
    `- 生成时间：${summary.generatedAt}`,
    `- 是否全部关闭：${summary.complete ? '是' : '否'}`,
    `- Intake 预审是否就绪：${summary.intakeReady ? '是' : '否'}`,
    `- 已关闭：${summary.closedCount}`,
    `- 未关闭：${summary.openCount}`,
    `- 业务证明缺口总数：${summary.businessGapCount ?? summary.openCount + summary.closedCount}`,
    `- 业务证明缺口已关闭：${summary.businessClosedCount ?? summary.closedCount}`,
    `- 业务证明缺口未关闭：${summary.businessOpenCount ?? summary.openCount}`,
    `- 预审行总数：${summary.precheckRowCount ?? 0}`,
    `- 预审未就绪行：${summary.precheckOpenCount ?? (summary.intakeReady ? 0 : 1)}`,
    '',
    '## 关闭状态',
    '',
    '| 缺口ID | 名称 | 状态 | 当前证据 | 缺失证明 | 关闭标准 | 验证命令 | 期望产物 | 下一步 |',
    '| --- | --- | --- | --- | --- | --- | --- | --- | --- |',
    ...summary.rows.map(row => `| ${row.id} | ${row.title} | ${row.status} | ${escapeCell(row.evidence)} | ${escapeCell((row.missingProofRequirements || []).join('；') || '-')} | ${escapeCell(row.required)} | \`${escapeCell(row.command)}\` | ${escapeCell(row.expectedArtifact)} | ${escapeCell(row.next)} |`),
    '',
    '## 边界',
    '',
    ...summary.guardrails.map(item => `- ${item}`)
  ].join('\n');
}

function latestFile(outputsDir, fileName) {
  if (!fs.existsSync(outputsDir)) return '';
  return fs.readdirSync(outputsDir, { withFileTypes: true })
    .filter(entry => entry.isDirectory())
    .map(entry => path.join(outputsDir, entry.name, fileName))
    .filter(file => fs.existsSync(file))
    .sort((a, b) => fs.statSync(b).mtimeMs - fs.statSync(a).mtimeMs)[0] || '';
}

function bestHistoryAudit(outputsDir) {
  return bestProofArtifact(outputsDir, 'historical-dataset-audit.json', {
    isClaimable: item => getHistoryMissingRequirements(item.json).length === 0
  });
}

function bestCustomerEffectSummary(outputsDir, historyFile = '', root = process.cwd()) {
  const history = readJsonArg(historyFile);
  const sourceFiles = { history: relIfInside(root, historyFile) };
  return bestProofArtifact(outputsDir, 'customer-effect-summary.json', {
    isClaimable: item => getCustomerEffectMissingRequirements(item.json, history, sourceFiles, root).length === 0,
    score: item => {
      if (!historyFile || !item.json?.historyAuditPath) return 0;
      return samePath(root, item.json.historyAuditPath, historyFile) ? 2 : 0;
    }
  });
}

function bestProofArtifact(outputsDir, fileName, { isClaimable = () => false, score = () => 0 } = {}) {
  const annotated = findFiles(outputsDir, fileName)
    .filter(file => isBusinessArtifactPath(outputsDir, file))
    .map(file => ({ file, json: readJsonArg(file), mtimeMs: fs.statSync(file).mtimeMs }))
    .filter(item => item.json);
  if (!annotated.length) return '';
  return annotated
    .sort((left, right) => {
      const rightClaimable = safePredicate(isClaimable, right) ? 1 : 0;
      const leftClaimable = safePredicate(isClaimable, left) ? 1 : 0;
      if (rightClaimable !== leftClaimable) return rightClaimable - leftClaimable;
      const rightScore = Number(score(right) || 0);
      const leftScore = Number(score(left) || 0);
      if (rightScore !== leftScore) return rightScore - leftScore;
      return right.mtimeMs - left.mtimeMs;
    })[0].file;
}

function safePredicate(predicate, item) {
  try {
    return Boolean(predicate(item));
  } catch (_error) {
    return false;
  }
}

function isBusinessArtifactPath(outputsDir, file) {
  const relative = path.relative(outputsDir, file).replace(/\\/g, '/').toLowerCase();
  const segments = relative.split('/').filter(Boolean);
  return !segments.some(segment =>
    segment.includes('smoke') ||
    segment.includes('sample') ||
    segment.includes('debug') ||
    segment === 'fixture' ||
    segment === 'fixtures' ||
    segment === '__tests__' ||
    segment === 'test' ||
    segment === 'tests' ||
    segment === 'tmp' ||
    segment.startsWith('tmp-') ||
    segment === 'temp' ||
    segment.startsWith('temp-')
  );
}

function bestOvernightAggregate(outputsDir) {
  const files = findFiles(outputsDir, 'aggregate-summary.json');
  const annotated = files
    .map(file => ({ file, json: readJsonArg(file), mtimeMs: fs.statSync(file).mtimeMs }))
    .filter(item => item.json);
  const closable = annotated
    .filter(item => isClosableOvernightAggregate(item.json))
    .sort((a, b) => b.mtimeMs - a.mtimeMs);
  if (closable.length) return closable[0].file;
  return annotated.sort((a, b) => b.mtimeMs - a.mtimeMs)[0]?.file || '';
}

function findFiles(dir, fileName) {
  if (!fs.existsSync(dir)) return [];
  const result = [];
  const stack = [dir];
  while (stack.length) {
    const current = stack.pop();
    for (const entry of fs.readdirSync(current, { withFileTypes: true })) {
      const full = path.join(current, entry.name);
      if (entry.isDirectory()) stack.push(full);
      else if (entry.isFile() && entry.name === fileName) result.push(full);
    }
  }
  return result;
}

function isClosableOvernightAggregate(aggregate) {
  return Boolean(
    aggregate?.manifest?.liveEnabled === true &&
    aggregate?.acceptance?.overallPass === true &&
    Number(aggregate?.failureCount || 0) === 0 &&
    Number(aggregate?.acceptance?.failedGateCount ?? aggregate?.failedGateCount ?? 0) === 0 &&
    aggregate?.acceptance?.tokenLeak !== true
  );
}

function readJsonArg(file) {
  if (!file) return null;
  const resolved = path.resolve(file);
  if (!fs.existsSync(resolved)) return null;
  return JSON.parse(fs.readFileSync(resolved, 'utf8').replace(/^\uFEFF/, ''));
}

function relIfInside(root, file) {
  if (!file) return '';
  const resolvedRoot = path.resolve(root);
  const resolvedFile = path.resolve(file);
  const relative = path.relative(resolvedRoot, resolvedFile);
  if (relative && (relative.startsWith('..') || path.isAbsolute(relative))) return resolvedFile.replace(/\\/g, '/');
  return relative.replace(/\\/g, '/');
}

function samePath(root, left, right) {
  const normalize = value => {
    const resolved = path.resolve(root || process.cwd(), value || '');
    return process.platform === 'win32' ? resolved.toLowerCase() : resolved;
  };
  return normalize(left) === normalize(right);
}

function parseArgs(argv) {
  const args = {};
  for (let index = 0; index < argv.length; index += 1) {
    const raw = argv[index];
    if (!raw.startsWith('--')) continue;
    const key = raw.slice(2).replace(/-([a-z])/g, (_, char) => char.toUpperCase());
    const next = argv[index + 1];
    if (!next || next.startsWith('--')) args[key] = true;
    else {
      args[key] = next;
      index += 1;
    }
  }
  return args;
}

function escapeCell(value) {
  return String(value ?? '').replace(/\|/g, '/').replace(/\r?\n/g, ' ');
}

function withBom(text) {
  return `\uFEFF${text}`;
}

if (require.main === module) main();

module.exports = {
  buildClosureSummary,
  renderReport,
  getVideoAbMissingRequirements,
  getIntakeMissingRequirements,
  getHistoryMissingRequirements,
  getVideoResourceMissingRequirements,
  getOvernightMissingRequirements,
  getCustomerEffectMissingRequirements,
  isRealVideoAbProof,
  getVideoAbPreflightMissingRequirements,
  formatVideoAbEvidence,
  bestHistoryAudit,
  bestCustomerEffectSummary,
  bestOvernightAggregate,
  isClosableOvernightAggregate
};