#!/usr/bin/env node
/**
 * 每日健康快照 (Daily Health Snapshot)
 *
 * 由 Stop hook 触发，23h 冷却机制。
 * 运行 health-check --json，保存快照到 debug/health-snapshots/
 * 若 overall < 70，追加告警到 evolution-log.jsonl
 *
 * 用法:
 *   node scripts/daily-health-snapshot.js           # 正常运行 (23h 冷却)
 *   node scripts/daily-health-snapshot.js --force   # 强制运行，忽略冷却
 */

const fs = require('fs');
const path = require('path');
const { execFileSync } = require('child_process');

const detectClaudeRoot = () => require('./paths.config.js').PATHS.root;

const CLAUDE_ROOT = detectClaudeRoot();
const DEBUG_DIR = path.join(CLAUDE_ROOT, 'debug');
const SNAPSHOT_DIR = path.join(DEBUG_DIR, 'health-snapshots');
const STAMP_FILE = path.join(DEBUG_DIR, '.last-health-snapshot');
const COOLDOWN_MS = 23 * 3600 * 1000; // 23 小时冷却
const PREDICT_STAMP = path.join(DEBUG_DIR, '.last-predictive-audit');
const PREDICT_COOLDOWN_MS = 7 * 24 * 3600 * 1000; // 7 天冷却
/**
 * @param {object} [opts]
 * @param {boolean} [opts.force] - 强制运行，忽略冷却
 */
function main(opts) {
  const force = (opts && opts.force) || process.argv.includes('--force');
  try {
    // 冷却检查
    if (!force && fs.existsSync(STAMP_FILE)) {
      const lastRun = fs.statSync(STAMP_FILE).mtimeMs;
      if (Date.now() - lastRun < COOLDOWN_MS) {
        return; // 静默跳过
      }
    }

    // 运行 health-check --json
    const healthScript = path.join(CLAUDE_ROOT, 'scripts', 'health-check.js');
    if (!fs.existsSync(healthScript)) return;

    const result = execFileSync(process.execPath, [healthScript, '--json'], {
      timeout: 30000,
      encoding: 'utf8',
      stdio: ['pipe', 'pipe', 'pipe'],
    });

    let report;
    try { report = JSON.parse(result); } catch { return; }

    // 保存快照
    fs.mkdirSync(SNAPSHOT_DIR, { recursive: true });
    const dateStr = new Date().toISOString().slice(0, 10);
    fs.writeFileSync(
      path.join(SNAPSHOT_DIR, `health-${dateStr}.json`),
      JSON.stringify(report, null, 2)
    );

    // 更新冷却戳
    fs.mkdirSync(DEBUG_DIR, { recursive: true });
    fs.writeFileSync(STAMP_FILE, dateStr);

    // F2: 低频触发 predictive-audit (7天冷却)
    try {
      let runPredict = force;
      if (!runPredict) {
        if (!fs.existsSync(PREDICT_STAMP)) {
          runPredict = true;
        } else {
          const lastPredict = fs.statSync(PREDICT_STAMP).mtimeMs;
          if (Date.now() - lastPredict >= PREDICT_COOLDOWN_MS) runPredict = true;
        }
      }
      if (runPredict) {
        const predictScript = path.join(CLAUDE_ROOT, 'scripts', 'predictive-audit.js');
        if (fs.existsSync(predictScript)) {
          const predictResult = execFileSync(process.execPath, [predictScript, '--json'], {
            timeout: 15000, encoding: 'utf8', stdio: ['pipe', 'pipe', 'pipe'],
          });
          const predictReport = JSON.parse(predictResult);
          // 保存预测报告到健康快照目录
          fs.writeFileSync(
            path.join(SNAPSHOT_DIR, `predict-${dateStr}.json`),
            JSON.stringify(predictReport, null, 2)
          );
          fs.writeFileSync(PREDICT_STAMP, dateStr);
        }
      }
    } catch {}

    // [v6.1] 可选: 域容量分析 (domain-capacity-manager CLI 工具)
    // 在健康快照中附加域容量报告，不阻断主流程
    try {
      const dcm = require('./domain-capacity-manager.js');
      if (dcm && typeof dcm.analyze === 'function') {
        const dcmReport = dcm.analyze();
        if (dcmReport) {
          fs.writeFileSync(
            path.join(SNAPSHOT_DIR, `domain-capacity-${dateStr}.json`),
            JSON.stringify(dcmReport, null, 2)
          );
        }
      }
    } catch {}

    // [v6.1] 可选: 技能退役建议 (skill-retirement-advisor CLI 工具)
    // 在健康快照中附加退役建议报告，不阻断主流程
    try {
      const sra = require('./skill-retirement-advisor.js');
      if (sra && typeof sra.analyze === 'function') {
        const sraReport = sra.analyze();
        if (sraReport) {
          fs.writeFileSync(
            path.join(SNAPSHOT_DIR, `skill-retirement-${dateStr}.json`),
            JSON.stringify(sraReport, null, 2)
          );
        }
      }
    } catch {}


    // [v6.6] 可选: 记忆文件体检 (memory/_tools/memory-audit.js)
    // sentinel: MEMORY_AUDIT_SNAPSHOT_2026_04_25
    // 运行 memory-audit --json，保存快照到 health-snapshots/memory-audit-<date>.json
    // 若 orphan/ghost > 0 或 health.score < 80，追加告警到 evolution-log
    try {
      const memAuditScript = path.join(
        CLAUDE_ROOT, 'projects', 'C--Users-leesu', 'memory', '_tools', 'memory-audit.js'
      );
      if (fs.existsSync(memAuditScript)) {
        const memResult = execFileSync(process.execPath, [memAuditScript, '--json'], {
          timeout: 10000, encoding: 'utf8', stdio: ['pipe', 'pipe', 'pipe'],
        });
        const memReport = JSON.parse(memResult);
        fs.writeFileSync(
          path.join(SNAPSHOT_DIR, `memory-audit-${dateStr}.json`),
          JSON.stringify(memReport, null, 2)
        );

        // 告警: orphan/ghost 或 分数偏低
        const h = memReport.health || {};
        const needAlert = (h.orphanCount > 0) || (h.ghostCount > 0) || (h.score < 80);
        if (needAlert) {
          const logFile = path.join(CLAUDE_ROOT, 'evolution-log.jsonl');
          const existing = fs.existsSync(logFile)
            ? fs.readFileSync(logFile, 'utf8').trim().split('\n').filter(Boolean) : [];
          const lastSeq = existing.length
            ? (JSON.parse(existing[existing.length - 1]).seq || 0) : 0;
          const memEntry = {
            seq: lastSeq + 1,
            ts: dateStr,
            version: 'v6.6',
            scope: 'memory-audit',
            trigger: 'daily-health-snapshot',
            summary: `记忆健康 ${h.score}/100 — orphan=${h.orphanCount} ghost=${h.ghostCount} oversize=${h.oversizeCount}`,
            tags: ['memory-alert', 'auto-snapshot'],
          };
          fs.appendFileSync(logFile, JSON.stringify(memEntry) + '\n');
        }
      }
    } catch {}

    // 若 overall < 70，追加告警到 evolution-log
    if (report.overallScore != null && report.overallScore < 70) {
      const failedDims = (report.dimensions || [])
        .filter(d => d.status === 'FAIL')
        .map(d => d.id)
        .join(',');

      const logFile = path.join(CLAUDE_ROOT, 'evolution-log.jsonl');
      const lines = fs.existsSync(logFile)
        ? fs.readFileSync(logFile, 'utf8').trim().split('\n').filter(Boolean) : [];
      const lastSeq = lines.length > 0
        ? (JSON.parse(lines[lines.length - 1]).seq || 0) : 0;

      const entry = {
        seq: lastSeq + 1,
        ts: dateStr,
        version: 'v5.9',
        scope: 'health-snapshot',
        trigger: 'daily-health-snapshot',
        summary: `健康评分 ${report.overallScore}/100 (${report.overallStatus || 'DEGRADED'}) — 失败维度: ${failedDims || '无'}`,
        tags: ['health-alert', 'auto-snapshot'],
      };
      fs.appendFileSync(logFile, JSON.stringify(entry) + '\n');
    }
  } catch {
    // 不阻断 Stop hook
  }
}

// 模块导出 (供 dispatcher 和测试使用)
if (typeof module !== 'undefined') {
  module.exports = { main };
}

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