docs(FEAT-MO-005): 建立市场结构数据源探针

2026-08-25 01:27:41 +08:00
parent 4f5a56df3a
commit 50b5266903
11 changed files with 469 additions and 0 deletions
@@ -0,0 +1,283 @@
+#!/usr/bin/env node
+
+const candidates = Object.freeze([
+  'stock_board_industry_spot_em',
+  'stock_board_concept_spot_em',
+  'stock_sector_fund_flow_rank',
+  'stock_market_fund_flow',
+  'stock_zh_a_spot_em',
+]);
+const tdxSymbols = Object.freeze(['000001.SH', '399001.SZ', '899050.BJ']);
+const tdxPeriods = Object.freeze(['1m', '5m', '15m', '1d']);
+const DEFAULT_AKTOOLS_BASE_URL = 'http://127.0.0.1:8080';
+const DEFAULT_TDX_BASE_URL = 'http://127.0.0.1:17710';
+const TIMEOUT_MS = 10_000;
+const MAX_RESPONSE_BYTES = 2 * 1024 * 1024;
+
+function usage() {
+  return `市场结构能力探针（只读）\n\n用法：node tools/probes/market-structure-capability.mjs [--base-url http://127.0.0.1:8080]\n\n仅允许本机 AKTools（127.0.0.1:8080）及本机 TDX（127.0.0.1:17710）。输出不会包含原始行、凭据、请求体或异常详情。`;
+}
+
+function parseLocalBaseUrl(value, expectedPort, optionName) {
+  let parsed;
+  try {
+    parsed = new URL(value);
+  } catch {
+    throw new Error(`${optionName} 必须是有效 URL`);
+  }
+  if (
+    parsed.protocol !== 'http:' ||
+    parsed.hostname !== '127.0.0.1' ||
+    parsed.port !== expectedPort
+  ) {
+    throw new Error(`${optionName} 必须指向本机 127.0.0.1:${expectedPort}`);
+  }
+  if (parsed.pathname !== '' && parsed.pathname !== '/') {
+    throw new Error(`${optionName} 不得包含路径`);
+  }
+  return parsed.toString().replace(/\/$/, '');
+}
+
+function parseArguments(argv) {
+  let baseUrl = DEFAULT_AKTOOLS_BASE_URL;
+  for (let index = 0; index < argv.length; index += 1) {
+    if (argv[index] === '--help' || argv[index] === '-h') return { help: true };
+    if (argv[index] === '--base-url' && argv[index + 1]) {
+      baseUrl = argv[index + 1];
+      index += 1;
+      continue;
+    }
+    throw new Error(`不支持的参数：${argv[index]}`);
+  }
+  return {
+    aktoolsBaseUrl: parseLocalBaseUrl(baseUrl, '8080', '--base-url'),
+    tdxBaseUrl: parseLocalBaseUrl(
+      process.env.TDX_BASE_URL || DEFAULT_TDX_BASE_URL,
+      '17710',
+      'TDX_BASE_URL',
+    ),
+  };
+}
+
+function classifyError(error) {
+  if (error?.name === 'AbortError') return 'timeout';
+  if (typeof error?.message === 'string' && error.message.startsWith('http_')) return error.message;
+  if (error instanceof SyntaxError) return 'invalid_json';
+  return 'network';
+}
+
+function getRows(value) {
+  if (Array.isArray(value)) return value;
+  if (value && typeof value === 'object') {
+    for (const key of ['data', 'result', 'Value']) {
+      const candidate = value[key];
+      if (Array.isArray(candidate)) return candidate;
+    }
+  }
+  return [];
+}
+
+function getKeys(rows) {
+  return [
+    ...new Set(rows.flatMap((row) => (row && typeof row === 'object' ? Object.keys(row) : []))),
+  ].sort();
+}
+
+function getTimestamp(row) {
+  if (!row || typeof row !== 'object') return null;
+  for (const key of ['Date', 'date', 'datetime', 'time', '时间', '日期']) {
+    const value = row[key];
+    if (typeof value === 'string' || typeof value === 'number') return String(value);
+  }
+  return null;
+}
+
+function isIntradayTimestamp(timestamp) {
+  return typeof timestamp === 'string' && /(?:T|\s)\d{2}:\d{2}/.test(timestamp);
+}
+
+function isShanghaiTradingSession(now = new Date()) {
+  const parts = new Intl.DateTimeFormat('en-CA', {
+    timeZone: 'Asia/Shanghai',
+    weekday: 'short',
+    hour: '2-digit',
+    minute: '2-digit',
+    hourCycle: 'h23',
+  }).formatToParts(now);
+  const values = Object.fromEntries(parts.map((part) => [part.type, part.value]));
+  if (values.weekday === 'Sat' || values.weekday === 'Sun') return false;
+  const minutes = Number(values.hour) * 60 + Number(values.minute);
+  return (
+    (minutes >= 9 * 60 + 30 && minutes <= 11 * 60 + 30) ||
+    (minutes >= 13 * 60 && minutes <= 15 * 60)
+  );
+}
+
+async function fetchJson(url, options) {
+  const controller = new AbortController();
+  const timeout = setTimeout(() => controller.abort(), TIMEOUT_MS);
+  try {
+    const response = await fetch(url, { ...options, signal: controller.signal });
+    const contentLength = response.headers.get('content-length');
+    if (contentLength && Number(contentLength) > MAX_RESPONSE_BYTES)
+      throw new Error('http_response_too_large');
+    const text = await response.text();
+    if (Buffer.byteLength(text, 'utf8') > MAX_RESPONSE_BYTES)
+      throw new Error('http_response_too_large');
+    if (!response.ok) throw new Error(`http_${response.status}`);
+    return JSON.parse(text);
+  } finally {
+    clearTimeout(timeout);
+  }
+}
+
+function summarizeRows(rows) {
+  const firstTimestamp = getTimestamp(rows[0]);
+  const lastTimestamp = getTimestamp(rows.at(-1));
+  return {
+    rowCount: rows.length,
+    keys: getKeys(rows),
+    firstTimestamp,
+    lastTimestamp,
+  };
+}
+
+function summarizeTdxSeries(series) {
+  const dates = Array.isArray(series?.Date) ? series.Date : [];
+  return {
+    rowCount: dates.length,
+    keys: series && typeof series === 'object' ? Object.keys(series).sort() : [],
+    firstTimestamp: dates.length ? String(dates[0]) : null,
+    lastTimestamp: dates.length ? String(dates.at(-1)) : null,
+  };
+}
+
+async function probeAktools(baseUrl, endpoint) {
+  const startedAt = performance.now();
+  try {
+    const value = await fetchJson(`${baseUrl}/api/public/${endpoint}`, {
+      headers: { accept: 'application/json' },
+    });
+    const rows = getRows(value);
+    return {
+      source: 'aktools',
+      endpoint,
+      status: rows.length > 0 ? 'usable' : 'partial',
+      elapsedMs: Math.round(performance.now() - startedAt),
+      ...summarizeRows(rows),
+      errorClass: null,
+    };
+  } catch (error) {
+    return {
+      source: 'aktools',
+      endpoint,
+      status: 'unavailable',
+      elapsedMs: Math.round(performance.now() - startedAt),
+      rowCount: 0,
+      keys: [],
+      firstTimestamp: null,
+      lastTimestamp: null,
+      errorClass: classifyError(error),
+    };
+  }
+}
+
+function analyzeTdxRows(series) {
+  const dates = Array.isArray(series?.Date) ? series.Date : [];
+  const amounts = Array.isArray(series?.Amount) ? series.Amount : [];
+  return {
+    dateAmountAligned: dates.length > 0 && dates.length === amounts.length,
+    timestampsIntraday:
+      dates.length > 0 && dates.every((date) => isIntradayTimestamp(String(date))),
+  };
+}
+
+async function probeTdx(baseUrl, symbol, period) {
+  const startedAt = performance.now();
+  try {
+    const envelope = await fetchJson(`${baseUrl}/`, {
+      method: 'POST',
+      headers: { 'content-type': 'application/json' },
+      body: JSON.stringify({
+        id: 1,
+        method: 'get_market_data',
+        params: { stock_list: [symbol], count: 30, dividend_type: 'none', period },
+      }),
+    });
+    const series = envelope?.result?.Value?.[symbol];
+    const businessError =
+      envelope?.error !== undefined ||
+      !envelope?.result ||
+      (envelope.result.ErrorId !== undefined &&
+        envelope.result.ErrorId !== 0 &&
+        envelope.result.ErrorId !== '0');
+    const summary = summarizeTdxSeries(series);
+    return {
+      source: 'tdx',
+      symbol,
+      period,
+      status: businessError ? 'unavailable' : summary.rowCount > 0 ? 'usable' : 'partial',
+      elapsedMs: Math.round(performance.now() - startedAt),
+      ...summary,
+      ...analyzeTdxRows(series),
+      errorClass: businessError ? 'protocol' : null,
+    };
+  } catch (error) {
+    return {
+      source: 'tdx',
+      symbol,
+      period,
+      status: 'unavailable',
+      elapsedMs: Math.round(performance.now() - startedAt),
+      rowCount: 0,
+      keys: [],
+      firstTimestamp: null,
+      lastTimestamp: null,
+      dateAmountAligned: false,
+      timestampsIntraday: false,
+      errorClass: classifyError(error),
+    };
+  }
+}
+
+async function main() {
+  const options = parseArguments(process.argv.slice(2));
+  if (options.help) {
+    console.log(usage());
+    return;
+  }
+  const aktools = await Promise.all(
+    candidates.map((endpoint) => probeAktools(options.aktoolsBaseUrl, endpoint)),
+  );
+  const tdx = await Promise.all(
+    tdxSymbols.flatMap((symbol) =>
+      tdxPeriods.map((period) => probeTdx(options.tdxBaseUrl, symbol, period)),
+    ),
+  );
+  console.log(
+    JSON.stringify(
+      {
+        observedAt: new Date().toISOString(),
+        aktoolsBaseUrl: options.aktoolsBaseUrl,
+        tdxBaseUrl: options.tdxBaseUrl,
+        tradingSession: isShanghaiTradingSession(),
+        freshnessNote: isShanghaiTradingSession()
+          ? '盘中观测：最后时间可用于后续新鲜度判断。'
+          : '非盘中观测：最后一条记录仅表示收盘后最后记录，不能证明盘中新鲜度。',
+        aktools,
+        tdx,
+      },
+      null,
+      2,
+    ),
+  );
+}
+
+if (import.meta.url === `file://${process.argv[1]}`) {
+  main().catch((error) => {
+    console.error(JSON.stringify({ errorClass: 'configuration', message: error.message }));
+    process.exitCode = 1;
+  });
+}
+
+export { analyzeTdxRows, isShanghaiTradingSession, parseArguments, summarizeRows };