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

const ROOT = path.resolve(__dirname, '..');
const DEFAULT_OUTPUT = path.join(ROOT, 'outputs', 'manual-review-label-guide-latest');

const LABEL_ROWS = [
  {
    label: '可直接发客户',
    category: 'positive',
    whenToUse: '候选人符合 Brief 硬性条件、内容调性、主页证据和风险边界，商务可直接放入客户名单。',
    requiresAttribution: false,
    requiresFeedbackReason: false,
    blocksReviewMetricsStrict: false,
    blocksCustomerEffectAudit: false
  },
  {
    label: '商务复核',
    category: 'positive',
    whenToUse: '候选人大体匹配，但报价、档期、竞品合作、近期内容或平台风险仍需商务确认。',
    requiresAttribution: false,
    requiresFeedbackReason: false,
    blocksReviewMetricsStrict: false,
    blocksCustomerEffectAudit: false
  },
  {
    label: '跑偏',
    category: 'negative',
    whenToUse: '人群、品类、平台、预算、内容方向或合作场景明显偏离 Brief。',
    requiresAttribution: true,
    requiresFeedbackReason: true,
    blocksReviewMetricsStrict: true,
    blocksCustomerEffectAudit: true
  },
  {
    label: '硬性规则违约',
    category: 'negative',
    whenToUse: '命中必须剔除项，例如平台不符、预算超限、地域/粉丝量/类目硬约束不符、客户明确排除。',
    requiresAttribution: true,
    requiresFeedbackReason: true,
    blocksReviewMetricsStrict: true,
    blocksCustomerEffectAudit: true
  },
  {
    label: '调性不符',
    category: 'negative',
    whenToUse: '硬指标可用，但内容表达、视觉质感、语气、人设或参考账号风格明显不一致。',
    requiresAttribution: true,
    requiresFeedbackReason: true,
    blocksReviewMetricsStrict: true,
    blocksCustomerEffectAudit: true
  },
  {
    label: '主页质感不符',
    category: 'negative',
    whenToUse: '主页最近内容质量、封面、互动、更新频率、商业化痕迹或风险信号不支持强推荐。',
    requiresAttribution: true,
    requiresFeedbackReason: true,
    blocksReviewMetricsStrict: true,
    blocksCustomerEffectAudit: true
  },
  {
    label: '参考账号不像',
    category: 'negative',
    whenToUse: '客户给了参考账号或参考视频，但候选人与参考账号的人群、内容结构或风格相似度不足。',
    requiresAttribution: true,
    requiresFeedbackReason: true,
    blocksReviewMetricsStrict: true,
    blocksCustomerEffectAudit: true
  },
  {
    label: '待客户反馈',
    category: 'pending',
    whenToUse: '商务已发客户或准备发客户，但客户尚未给最终选择/拒绝结果。',
    requiresAttribution: false,
    requiresFeedbackReason: false,
    blocksReviewMetricsStrict: false,
    blocksCustomerEffectAudit: true
  },
  {
    label: '客户选中',
    category: 'customer_result',
    whenToUse: '客户最终确认选择该候选人，可用于 customer-effect:audit 的客户选中率统计。',
    requiresAttribution: false,
    requiresFeedbackReason: false,
    blocksReviewMetricsStrict: false,
    blocksCustomerEffectAudit: false
  },
  {
    label: '客户拒绝',
    category: 'customer_result',
    whenToUse: '客户最终拒绝该候选人，必须补拒绝原因或反馈原因，用于下一轮优化。',
    requiresAttribution: true,
    requiresFeedbackReason: true,
    blocksReviewMetricsStrict: false,
    blocksCustomerEffectAudit: true
  }
];

const ATTRIBUTION_ROWS = [
  ['需求解析错', 'Brief 里的品类、人群、预算、平台、地域或硬性限制被解析错。'],
  ['隐性规则漏', '客户偏好、历史排除项、风格禁区或团队经验规则没有进入本轮筛选。'],
  ['召回关键词错', '关键词召回方向太宽、太窄或平台搜索词不贴合真实场景。'],
  ['主页证据不足', '主页最近内容、封面、标题、互动、发布时间或风险证据不足。'],
  ['视频证据误判', '参考视频或候选视频风格、场景、口播、画面质感、ASR 被误判。'],
  ['排序权重错', '候选已召回但排序把弱相关、低质感或高风险账号排得过高。'],
  ['输出解释错', '推荐理由、风险提示或证据卡表达不清，导致商务难以判断。'],
  ['软件端表重复或排名不连续', '同一候选重复出现、重复键异常、排名断档或表格字段不稳定。']
];

function main() {
  const args = parseArgs(process.argv.slice(2));
  const outputDir = path.resolve(args.output || DEFAULT_OUTPUT);
  const summary = buildGuideSummary();
  fs.mkdirSync(outputDir, { recursive: true });

  const summaryPath = path.join(outputDir, 'manual-review-label-guide-summary.json');
  const reportPath = path.join(outputDir, 'manual-review-label-guide.md');
  const csvPath = path.join(outputDir, 'manual-review-label-guide.csv');
  fs.writeFileSync(summaryPath, JSON.stringify(summary, null, 2), 'utf8');
  fs.writeFileSync(reportPath, withBom(renderReport(summary)), 'utf8');
  fs.writeFileSync(csvPath, withBom(renderCsv(summary)), 'utf8');

  console.log(JSON.stringify({
    outputDir,
    summary: summaryPath,
    report: reportPath,
    csv: csvPath,
    passed: summary.passed,
    labelCount: summary.labelCount,
    attributionTypeCount: summary.attributionTypeCount
  }, null, 2));

  if (args.strict && !summary.passed) process.exitCode = 1;
}

function buildGuideSummary() {
  const negativeLabels = LABEL_ROWS.filter(item => item.category === 'negative' || item.label === '客户拒绝');
  const positiveLabels = LABEL_ROWS.filter(item => item.category === 'positive');
  const pendingLabels = LABEL_ROWS.filter(item => item.category === 'pending');
  const negativeLabelsMissingAttributionRule = negativeLabels.filter(item => !item.requiresAttribution);
  const rows = LABEL_ROWS.map((item, index) => ({
    id: `MRL-${String(index + 1).padStart(3, '0')}`,
    ...item,
    customerEffectBoundary: item.blocksCustomerEffectAudit
      ? '缺少客户最终选择、反馈原因或负样本归因时，不得进入客户效果证明。'
      : '只能作为复核/客户结果字段使用，仍需 customer-effect:audit 通过后才能宣称客户效果。'
  }));
  const attributionTypes = ATTRIBUTION_ROWS.map(([type, usage], index) => ({
    id: `ATR-${String(index + 1).padStart(3, '0')}`,
    type,
    usage,
    appliesTo: '负样本、客户拒绝、跑偏或调性不符候选'
  }));
  const summary = {
    generatedAt: new Date().toISOString(),
    directCustomerProof: false,
    proofLevel: 'smoke_or_local',
    passed: negativeLabelsMissingAttributionRule.length === 0 &&
      positiveLabels.length >= 2 &&
      negativeLabels.length >= 5 &&
      attributionTypes.length >= 8,
    labelCount: rows.length,
    positiveLabelCount: positiveLabels.length,
    negativeLabelCount: negativeLabels.length,
    pendingLabelCount: pendingLabels.length,
    attributionTypeCount: attributionTypes.length,
    negativeLabelsRequireAttribution: negativeLabelsMissingAttributionRule.length === 0,
    reviewMetricsStrictRules: [
      '人工复核标签不能为空。',
      '负样本标签必须填写归因类型。',
      '重复键必须为 0。',
      '同一 Brief 内排名必须连续。',
      '商务可用率、负样本率和归因覆盖率必须达到 review:metrics 门槛。'
    ],
    customerEffectAuditRules: [
      '客户选中率必须来自真实客户最终选择字段。',
      '客户拒绝样本必须填写拒绝原因或反馈原因。',
      '必须有历史人工补号量基线和本轮人工补号量。',
      '缺少 customer-effect-summary.json 或 overallPass=true 时，不得宣称客户效果。'
    ],
    labels: rows,
    attributionTypes
  };
  return summary;
}

function renderReport(summary) {
  return [
    '# 人工复核标签与归因填写指南',
    '',
    `- 生成时间：${summary.generatedAt}`,
    `- 标签数：${summary.labelCount}`,
    `- 归因类型数：${summary.attributionTypeCount}`,
    `- directCustomerProof：${summary.directCustomerProof}`,
    `- proofLevel：${summary.proofLevel}`,
    '',
    '## 使用边界',
    '',
    '- 本指南只规范商务复核字段、负样本归因和客户效果审计前置条件。',
    '- 它不证明命中率提升，也不证明客户效果完成。',
    '- 只有真实客户选择、历史人工补号基线、本轮人工补号量和 `customer-effect:audit` 同时通过，才能进入客户效果结论。',
    '',
    '## 人工复核标签',
    '',
    '| ID | 标签 | 分类 | 什么时候用 | 需要归因 | 需要反馈原因 | 会阻塞 review:metrics --strict | 会阻塞 customer-effect:audit | 边界 |',
    '| --- | --- | --- | --- | --- | --- | --- | --- | --- |',
    ...summary.labels.map(item => tableRow([
      item.id,
      item.label,
      item.category,
      item.whenToUse,
      yesNo(item.requiresAttribution),
      yesNo(item.requiresFeedbackReason),
      yesNo(item.blocksReviewMetricsStrict),
      yesNo(item.blocksCustomerEffectAudit),
      item.customerEffectBoundary
    ])),
    '',
    '## 负样本归因类型',
    '',
    '| ID | 归因类型 | 适用场景 | 说明 |',
    '| --- | --- | --- | --- |',
    ...summary.attributionTypes.map(item => tableRow([item.id, item.type, item.appliesTo, item.usage])),
    '',
    '## 严格复核门禁',
    '',
    ...summary.reviewMetricsStrictRules.map(item => `- ${item}`),
    '',
    '## 客户效果门禁',
    '',
    ...summary.customerEffectAuditRules.map(item => `- ${item}`),
    '',
    '## 建议填写顺序',
    '',
    '1. 先给每个候选填写 `人工复核标签`。',
    '2. 所有负样本和客户拒绝样本补 `归因类型`。',
    '3. 负样本补 `反馈原因`，写到能指导下一轮规则或权重调整。',
    '4. 客户有最终选择后，再填写 `客户选择`。',
    '5. 跑 `npm run review:metrics -- --input <已标注CSV> --output <复核指标输出目录> --strict`。',
    '6. 历史基线和本轮人工补号量到位后，再跑 `customer-effect:audit`。',
    ''
  ].join('\n');
}

function renderCsv(summary) {
  const header = [
    '类型',
    'ID',
    '名称',
    '分类',
    '说明',
    '需要归因',
    '需要反馈原因',
    '阻塞review_metrics_strict',
    '阻塞customer_effect_audit',
    '客户效果边界'
  ];
  const labelRows = summary.labels.map(item => [
    'label',
    item.id,
    item.label,
    item.category,
    item.whenToUse,
    yesNo(item.requiresAttribution),
    yesNo(item.requiresFeedbackReason),
    yesNo(item.blocksReviewMetricsStrict),
    yesNo(item.blocksCustomerEffectAudit),
    item.customerEffectBoundary
  ]);
  const attributionRows = summary.attributionTypes.map(item => [
    'attribution',
    item.id,
    item.type,
    'negative_attribution',
    item.usage,
    '是',
    '建议',
    '负样本缺失时阻塞',
    '负样本缺失时阻塞',
    '只作为归因字段，不证明客户效果'
  ]);
  return [header, ...labelRows, ...attributionRows].map(row => row.map(csvCell).join(',')).join('\n');
}

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 yesNo(value) {
  return value ? '是' : '否';
}

function csvCell(value) {
  const text = String(value ?? '');
  return /[",\n]/.test(text) ? `"${text.replace(/"/g, '""')}"` : text;
}

function tableRow(cells) {
  return `| ${cells.map(cell => String(cell ?? '').replace(/\|/g, '/').replace(/\r?\n/g, ' ')).join(' | ')} |`;
}

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

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

module.exports = {
  buildGuideSummary,
  renderReport,
  renderCsv
};