#!/usr/bin/env node
const fs = require('fs');
const path = require('path');
const {
  PACKAGE_ROOT,
  OUTPUT_CATEGORIES,
  OUTPUT_PERSISTENT_STORES,
  outputsRoot
} = require('../mcp/src/core/output-paths');

const DOCS_ALLOWED = new Set(['OUTPUT-STANDARD.md', 'DASHBOARD-DEV-LOG.md', 'RELEASE.md', 'specs', 'guides', 'generated']);
const RUN_DIR_RE = /^\d{6}-[a-z0-9\u4e00-\u9fa5-]+$/;
const DATE_DIR_RE = /^\d{4}-\d{2}-\d{2}$/;

const problems = [];

function listEntries(dir) {
  if (!fs.existsSync(dir)) return [];
  return fs.readdirSync(dir, { withFileTypes: true });
}

function checkOutputs() {
  const root = outputsRoot();
  for (const entry of listEntries(root)) {
    if (!entry.isDirectory()) {
      problems.push(`outputs 根目录不允许直接放文件：outputs/${entry.name}`);
      continue;
    }
    if (!OUTPUT_CATEGORIES.includes(entry.name)) {
      problems.push(`outputs 下存在未注册类别：outputs/${entry.name}（允许：${OUTPUT_CATEGORIES.join(', ')}）`);
      continue;
    }
    checkCategory(path.join(root, entry.name), entry.name);
  }
}

function checkCategory(dir, category) {
  const persistentStores = new Set(OUTPUT_PERSISTENT_STORES[category] || []);
  for (const entry of listEntries(dir)) {
    if (!entry.isDirectory()) continue; // latest 模式文件
    if (persistentStores.has(entry.name)) continue; // 注册的持续知识库
    if (!DATE_DIR_RE.test(entry.name)) {
      problems.push(`outputs/${category}/${entry.name} 不是 YYYY-MM-DD 日期目录`);
      continue;
    }
    const dateDir = path.join(dir, entry.name);
    for (const run of listEntries(dateDir)) {
      const rel = `outputs/${category}/${entry.name}/${run.name}`;
      if (!run.isDirectory()) {
        problems.push(`${rel} 应为 run 目录而不是文件`);
        continue;
      }
      if (!RUN_DIR_RE.test(run.name)) {
        problems.push(`${rel} 不符合 HHmmss-<slug> 命名`);
      }
      if (!fs.existsSync(path.join(dateDir, run.name, 'manifest.json'))) {
        problems.push(`${rel} 缺少 manifest.json`);
      }
    }
  }
}

function checkDocs() {
  const docsDir = path.join(PACKAGE_ROOT, 'docs');
  for (const entry of listEntries(docsDir)) {
    if (!DOCS_ALLOWED.has(entry.name)) {
      problems.push(`docs 第一层存在未注册条目：docs/${entry.name}（允许：${[...DOCS_ALLOWED].join(', ')}）`);
    }
  }
}

checkOutputs();
checkDocs();

if (problems.length) {
  console.error('输出目录标准校验失败：');
  for (const problem of problems) console.error(`  - ${problem}`);
  process.exit(1);
}
console.log('输出目录标准校验通过（outputs 与 docs 均符合 docs/OUTPUT-STANDARD.md）。');