#!/usr/bin/env node
/**
 * Full local E2E: john login → agent run → routing → session reply quality.
 * Usage: JOHN_PASSWORD=888888 node scripts/verify-world-cup-flow-e2e.mjs
 */
import crypto from 'node:crypto';
import { loadH5Environment } from './load-env.mjs';
import { createDbPool } from '../db.mjs';
import { createUserAuth, USER_COOKIE } from '../user-auth.mjs';
import {
  CHAT_INTENT_ROUTE,
  classifyWithRules,
  resolveChatIntentRouterPolicy,
} from '../chat-intent-router.mjs';

loadH5Environment(import.meta.dirname);

const PORTAL = `http://127.0.0.1:${process.env.H5_PORT ?? 8081}`;
const USERNAME = 'john';
const PASSWORD = process.env.JOHN_PASSWORD ?? process.env.H5_ACCESS_PASSWORD ?? '888888';
const QUERY = '世界杯现在赛况如何';
const MAX_RUN_WAIT_MS = Number(process.env.E2E_RUN_WAIT_MS ?? 300_000);
const MAX_REPLY_WAIT_MS = 120_000;

const issues = [];
const checks = [];

function pass(label, detail = '') {
  checks.push({ ok: true, label, detail });
  console.log(`✔ ${label}${detail ? `: ${detail}` : ''}`);
}

function fail(label, detail = '') {
  issues.push({ label, detail });
  checks.push({ ok: false, label, detail });
  console.error(`✘ ${label}${detail ? `: ${detail}` : ''}`);
}

function sleep(ms) {
  return new Promise((resolve) => setTimeout(resolve, ms));
}

async function loginViaApi() {
  const response = await fetch(`${PORTAL}/auth/login`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ username: USERNAME, password: PASSWORD }),
  });
  const body = await response.json().catch(() => ({}));
  if (!response.ok || !body?.authenticated) {
    throw new Error(`HTTP 登录失败 ${response.status}: ${JSON.stringify(body)}`);
  }
  const setCookie = response.headers.getSetCookie?.() ?? [];
  const cookieLine = setCookie.find((line) => line.startsWith(`${USER_COOKIE}=`))
    ?? response.headers.get('set-cookie');
  const match = String(cookieLine ?? '').match(new RegExp(`${USER_COOKIE}=([^;]+)`));
  if (match?.[1]) return decodeURIComponent(match[1]);

  const pool = await createDbPool();
  const auth = createUserAuth(pool);
  const result = await auth.login({ username: USERNAME, password: PASSWORD, ip: '127.0.0.1' });
  await pool.end();
  if (!result.ok) {
    throw new Error(`登录 cookie 解析失败，且 DB login 失败: ${result.message ?? 'unknown'}`);
  }
  return result.token;
}

async function createRun(token) {
  const requestId = crypto.randomUUID();
  const response = await fetch(`${PORTAL}/api/agent/runs`, {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      Cookie: `${USER_COOKIE}=${token}`,
    },
    body: JSON.stringify({
      request_id: requestId,
      user_message: {
        id: crypto.randomUUID(),
        role: 'user',
        content: [{ type: 'text', text: QUERY }],
        metadata: { userVisible: true, displayText: QUERY },
      },
    }),
  });
  const payload = await response.json().catch(() => ({}));
  if (!response.ok) {
    throw new Error(`POST /agent/runs ${response.status}: ${JSON.stringify(payload)}`);
  }
  const run = payload.run ?? payload;
  return { runId: run.id, requestId, status: run.status };
}

async function getRun(token, runId) {
  const response = await fetch(`${PORTAL}/api/agent/runs/${runId}`, {
    headers: { Cookie: `${USER_COOKIE}=${token}` },
  });
  const payload = await response.json().catch(() => ({}));
  const run = payload.run ?? payload;
  if (!response.ok) {
    throw new Error(`GET run ${response.status}: ${JSON.stringify(payload)}`);
  }
  return run;
}

async function getSession(token, sessionId) {
  const response = await fetch(`${PORTAL}/api/sessions/${encodeURIComponent(sessionId)}`, {
    headers: { Cookie: `${USER_COOKIE}=${token}` },
  });
  const payload = await response.json().catch(() => ({}));
  if (!response.ok) {
    return { ok: false, status: response.status, payload };
  }
  return { ok: true, session: payload };
}

async function readRunEvents(runId) {
  const pool = await createDbPool();
  const [rows] = await pool.query(
    `SELECT event_type, data_json, created_at
       FROM h5_agent_run_events
      WHERE run_id = ?
      ORDER BY created_at ASC`,
    [runId],
  );
  await pool.end();
  return rows;
}

async function readSessionStreamCount(sessionId) {
  const pool = await createDbPool();
  const [[row]] = await pool.query(
    `SELECT COUNT(*) AS cnt FROM h5_session_stream_events WHERE agent_session_id = ?`,
    [sessionId],
  );
  await pool.end();
  return Number(row?.cnt ?? 0);
}

function extractAssistantTexts(sessionPayload) {
  const conversation = sessionPayload?.conversation
    ?? sessionPayload?.session?.conversation
    ?? sessionPayload?.messages
    ?? [];
  const texts = [];
  for (const message of conversation) {
    if (message?.role !== 'assistant') continue;
    const content = message?.content;
    if (typeof content === 'string') texts.push(content);
    else if (Array.isArray(content)) {
      texts.push(
        content
          .map((item) => (item?.type === 'text' ? item.text ?? '' : ''))
          .join(''),
      );
    }
  }
  return texts.filter(Boolean);
}

function verifyStaticRouter() {
  const rule = classifyWithRules({
    text: QUERY,
    llmRouterEnabled: true,
    userMessage: {
      role: 'user',
      content: [{ type: 'text', text: QUERY }],
      metadata: { displayText: QUERY },
    },
  });
  if (rule?.route !== CHAT_INTENT_ROUTE.AGENT) {
    fail('规则快路径', `期望 agent_orchestration，实际 ${rule?.route ?? 'null'}`);
    return;
  }
  pass('规则快路径', `${rule.source} / ${rule.reason}`);

  const policy = resolveChatIntentRouterPolicy({
    env: { MEMIND_CHAT_ROUTER_FALLBACK_ROUTE: 'direct_chat' },
  });
  if (policy.fallbackRoute !== CHAT_INTENT_ROUTE.AGENT) {
    fail('fallback 策略', `direct_chat 未被纠正，实际 ${policy.fallbackRoute}`);
    return;
  }
  pass('fallback 策略', 'timeout 强制 agent_orchestration');
}

async function verifyAdminConfig() {
  const pool = await createDbPool();
  const [[row]] = await pool.query(
    `SELECT config_json FROM h5_memory_v2_admin_config WHERE config_scope = 'global' LIMIT 1`,
  );
  await pool.end();
  const router = row?.config_json?.chatIntentRouter ?? {};
  if (router.fallbackRoute !== 'agent_orchestration') {
    fail('Admin DB fallbackRoute', String(router.fallbackRoute ?? 'missing'));
  } else {
    pass('Admin DB fallbackRoute', router.fallbackRoute);
  }
  if (Number(router.timeoutMs) < 2000) {
    fail('Admin DB timeoutMs', String(router.timeoutMs ?? 'missing'));
  } else {
    pass('Admin DB timeoutMs', `${router.timeoutMs}ms`);
  }
}

async function waitForAssistantReply(token, sessionId) {
  const started = Date.now();
  while (Date.now() - started < MAX_REPLY_WAIT_MS) {
    const result = await getSession(token, sessionId);
    if (result.ok) {
      const texts = extractAssistantTexts(result.session);
      const combined = texts.join('\n').trim();
      if (combined.length > 20) {
        return { texts, combined, elapsedMs: Date.now() - started };
      }
    }
    await sleep(2000);
  }
  return null;
}

async function main() {
  console.log('==> 世界杯链路 E2E 验证');
  console.log(`    Portal: ${PORTAL}`);
  console.log(`    用户: ${USERNAME}\n`);

  console.log('--- 静态检查 ---');
  verifyStaticRouter();
  await verifyAdminConfig();

  console.log('\n--- HTTP 链路 ---');
  const token = await loginViaApi();
  pass('HTTP 登录', USERNAME);

  const { runId } = await createRun(token);
  pass('POST /agent/runs', runId);

  let run = null;
  const runStarted = Date.now();
  const terminalRunWaitMs = Number(process.env.E2E_RUN_WAIT_MS ?? 300_000);
  while (Date.now() - runStarted < terminalRunWaitMs) {
    run = await getRun(token, runId);
    if (['succeeded', 'failed'].includes(run.status)) break;
    await sleep(2000);
  }
  if (!run || !['succeeded', 'failed'].includes(run.status)) {
    fail('run 终态', `超时未完成，最后状态 ${run?.status ?? 'unknown'}`);
  } else if (run.status === 'failed') {
    fail('run 终态', run.error ?? 'failed');
  } else {
    pass('run 终态', `succeeded (${Date.now() - runStarted}ms)`);
  }

  const events = await readRunEvents(runId);
  let routed = events.find((row) => row.event_type === 'intent_routed');
  let route = routed?.data_json?.route ?? null;
  let source = routed?.data_json?.source ?? null;
  let reason = routed?.data_json?.reason ?? null;

  if (route === CHAT_INTENT_ROUTE.AGENT) {
    pass('intent_routed', `${source} / ${reason}`);
  } else {
    fail('intent_routed', `route=${route}, source=${source}, reason=${reason}`);
  }

  const suggestedSkill = routed?.data_json?.suggestedSkill ?? null;
  if (suggestedSkill === 'web') {
    pass('强制 web skill', suggestedSkill);
  } else {
    fail('强制 web skill', `期望 web，实际 ${suggestedSkill ?? 'missing'}`);
  }

  if (events.some((row) => row.event_type === 'direct_chat_completed')) {
    fail('通道', '出现 direct_chat_completed，不应走 direct chat');
  } else {
    pass('通道', '无 direct_chat_completed');
  }

  const sessionId = run?.sessionId ?? run?.agent_session_id;
  if (!sessionId) {
    fail('session', 'run 未回填 sessionId');
  } else {
    pass('session 创建', sessionId);
    if (events.some((row) => row.event_type === 'session_started')) {
      pass('agent 派发', 'session_started 已记录');
    } else {
      fail('agent 派发', '缺少 session_started');
    }

    const streamCount = await readSessionStreamCount(sessionId);
    if (streamCount > 0) {
      pass('session SSE 落库', `${streamCount} 条 stream events`);
    } else {
      fail('session SSE 落库', 'h5_session_stream_events 为空（4c replay 可能未生效或 agent 未流式输出）');
    }

    console.log('\n--- 等待 assistant 回复（最长 120s）---');
    const reply = await waitForAssistantReply(token, sessionId);
    if (!reply) {
      fail('assistant 回复', '超时未从 GET /sessions 读到 assistant 文本');
    } else {
      pass('assistant 回复', `${reply.combined.length} 字 / ${reply.elapsedMs}ms`);
      console.log('\n--- 回复摘要 ---');
      console.log(reply.combined.slice(0, 800));
      if (/无法实时获取|无法获取.*最新赛况|建议你打开体育新闻/i.test(reply.combined)) {
        fail('回复质量', '仍是 direct chat 式拒答，未实际搜索赛况');
      } else if (/(世界杯|赛程|比分|淘汰赛|小组赛|FIFA|2026)/i.test(reply.combined)) {
        pass('回复质量', '包含赛况/世界杯相关内容');
      } else {
        fail('回复质量', '未检测到赛况关键词，请人工查看完整回复');
      }
    }
  }

  if (run && !['succeeded', 'failed'].includes(run.status)) {
    const extraWaitStarted = Date.now();
    while (Date.now() - extraWaitStarted < MAX_REPLY_WAIT_MS) {
      run = await getRun(token, runId);
      if (['succeeded', 'failed'].includes(run.status)) break;
      await sleep(2000);
    }
    if (['succeeded', 'failed'].includes(run.status)) {
      pass('run 终态（延后）', `${run.status}`);
    }
  }

  const finalEvents = await readRunEvents(runId);
  routed = finalEvents.find((row) => row.event_type === 'intent_routed') ?? routed;
  route = routed?.data_json?.route ?? route;
  source = routed?.data_json?.source ?? source;
  reason = routed?.data_json?.reason ?? reason;
  const sessionFinishedIdx = finalEvents.findIndex((row) => row.event_type === 'session_finished');
  const succeededIdx = finalEvents.findIndex((row) => row.event_type === 'succeeded');
  if (sessionFinishedIdx >= 0 && succeededIdx > sessionFinishedIdx) {
    pass('run 与 Finish 对齐', 'session_finished 在 succeeded 之前');
  } else if (run?.status === 'running') {
    fail('run 与 Finish 对齐', 'run 仍在 running，可能 await Finish 尚未完成');
  } else if (run?.status === 'succeeded') {
    fail('run 与 Finish 对齐', '缺少 session_finished 或顺序不对');
  }

  console.log('\n=== 汇总 ===');
  console.log(`通过: ${checks.filter((c) => c.ok).length}/${checks.length}`);
  if (issues.length) {
    console.log('待修复:');
    for (const item of issues) {
      console.log(`  - ${item.label}: ${item.detail}`);
    }
    process.exit(1);
  }
  console.log('全部检查通过');
}

main().catch((err) => {
  console.error(err instanceof Error ? err.stack ?? err.message : err);
  process.exit(1);
});