import assert from 'node:assert/strict';
import fs from 'node:fs';
import { createServer } from 'node:http';
import os from 'node:os';
import path from 'node:path';
import test from 'node:test';
import {
  buildVisionPayload,
  createTkmindProxy,
  sanitizePublicHtmlLinksInText,
  sanitizeSessionConversationPublicHtmlLinks,
} from './tkmind-proxy.mjs';
import { createMemoryV2 } from './memory-v2.mjs';

async function withFakeGoosedSession(handler) {
  const workingDir = fs.mkdtempSync(path.join(os.tmpdir(), 'memind-memory-v2-'));
  const harnessEntries = [];
  let server;

  try {
    server = createServer(async (req, res) => {
      const chunks = [];
      for await (const chunk of req) chunks.push(chunk);
      const rawBody = Buffer.concat(chunks).toString('utf8');
      const body = rawBody ? JSON.parse(rawBody) : {};

      if (req.method === 'POST' && req.url === '/agent/start') {
        res.writeHead(200, { 'Content-Type': 'application/json' });
        res.end(JSON.stringify({ id: 'session-1' }));
        return;
      }
      if (req.method === 'POST' && req.url === '/agent/update_session') {
        res.writeHead(200, { 'Content-Type': 'application/json' });
        res.end(JSON.stringify({ ok: true }));
        return;
      }
      if (req.method === 'GET' && req.url === '/sessions/session-1') {
        res.writeHead(200, { 'Content-Type': 'application/json' });
        res.end(JSON.stringify({
          id: 'session-1',
          working_dir: workingDir,
          goose_mode: 'chat',
        }));
        return;
      }
      if (req.method === 'GET' && req.url === '/sessions/session-1/extensions') {
        res.writeHead(200, { 'Content-Type': 'application/json' });
        res.end(JSON.stringify({
          extensions: [{ name: 'memory', available_tools: [] }],
        }));
        return;
      }
      if (req.method === 'POST' && req.url === '/sessions/session-1/reply') {
        res.writeHead(200, { 'Content-Type': 'application/json' });
        res.end(JSON.stringify({ ok: true }));
        return;
      }
      if (req.method === 'POST' && req.url === '/agent/harness_remember') {
        harnessEntries.push(body);
        res.writeHead(200, { 'Content-Type': 'application/json' });
        res.end(JSON.stringify({ ok: true }));
        return;
      }
      if (req.method === 'POST' && req.url === '/agent/harness_bootstrap') {
        res.writeHead(200, { 'Content-Type': 'application/json' });
        res.end(JSON.stringify({ ok: true }));
        return;
      }
      res.writeHead(404, { 'Content-Type': 'application/json' });
      res.end(JSON.stringify({ message: `unexpected ${req.method} ${req.url}` }));
    });

    await new Promise((resolve) => server.listen(0, '127.0.0.1', resolve));
    const { port } = server.address();
    return await handler({
      apiTarget: `http://127.0.0.1:${port}`,
      workingDir,
      harnessEntries,
    });
  } finally {
    if (server?.listening) {
      await new Promise((resolve) => server.close(resolve));
    }
    fs.rmSync(workingDir, { recursive: true, force: true });
  }
}

function createMemoryTestUserAuth(workingDir) {
  return {
    async resolveWorkingDir() {
      return workingDir;
    },
    async getAgentSessionPolicy() {
      return {
        gooseMode: 'chat',
        enableContextMemory: true,
        extensionOverrides: [{ name: 'memory', available_tools: [] }],
      };
    },
    async getUserPublishLayout() {
      return {
        displayName: 'John',
        username: 'john',
        slug: 'john',
      };
    },
    async registerAgentSession() {},
    async getSessionTarget() {
      return { target: null, node: 0 };
    },
  };
}

test('sanitizePublicHtmlLinksInText downgrades missing own markdown public html links', () => {
  const owner = `test-user-${Date.now()}-markdown-missing`;
  const publicRoot = path.join(process.cwd(), 'MindSpace', owner, 'public');
  try {
    fs.mkdirSync(publicRoot, { recursive: true });
    const text =
      `[夏日随笔](https://m.tkmind.cn/MindSpace/${owner}/public/summer-essay.html)`;
    const next = sanitizePublicHtmlLinksInText(text, { id: owner, username: 'john' });
    assert.doesNotMatch(next, new RegExp(`https://m\\.tkmind\\.cn/MindSpace/${owner}/public/summer-essay\\.html`));
    assert.match(next, /页面生成未完成/);
  } finally {
    fs.rmSync(path.join(process.cwd(), 'MindSpace', owner), { recursive: true, force: true });
  }
});

test('sanitizePublicHtmlLinksInText downgrades missing own public html links', () => {
  const owner = `test-user-${Date.now()}-missing`;
  const publicRoot = path.join(process.cwd(), 'MindSpace', owner, 'public');
  try {
    fs.mkdirSync(publicRoot, { recursive: true });
    const text =
      `页面在这里：\nhttps://m.tkmind.cn/MindSpace/${owner}/public/hello.html`;
    const next = sanitizePublicHtmlLinksInText(text, { id: owner, username: 'john' });
    assert.doesNotMatch(next, new RegExp(`https://m\\.tkmind\\.cn/MindSpace/${owner}/public/hello\\.html`));
    assert.match(next, /页面生成未完成/);
    assert.match(next, /hello\.html/);
  } finally {
    fs.rmSync(path.join(process.cwd(), 'MindSpace', owner), { recursive: true, force: true });
  }
});

test('sanitizePublicHtmlLinksInText keeps existing own public html links', () => {
  const owner = `test-user-${Date.now()}-existing`;
  const htmlPath = path.join(process.cwd(), 'MindSpace', owner, 'public', 'hello.html');
  try {
    fs.mkdirSync(path.dirname(htmlPath), { recursive: true });
    fs.writeFileSync(htmlPath, '<!doctype html><title>Hello</title>');
    const text =
      `页面在这里：\nhttps://m.tkmind.cn/MindSpace/${owner}/public/hello.html`;
    const next = sanitizePublicHtmlLinksInText(text, { id: owner, username: 'john' });
    assert.match(next, new RegExp(`https://m\\.tkmind\\.cn/MindSpace/${owner}/public/hello\\.html`));
    assert.doesNotMatch(next, /页面生成未完成/);
  } finally {
    fs.rmSync(path.join(process.cwd(), 'MindSpace', owner), { recursive: true, force: true });
  }
});

test('sanitizeSessionConversationPublicHtmlLinks updates text items inside conversation messages', () => {
  const owner = `test-user-${Date.now()}-conversation`;
  const publicRoot = path.join(process.cwd(), 'MindSpace', owner, 'public');
  try {
    fs.mkdirSync(publicRoot, { recursive: true });
    const conversation = [
      {
        id: 'assistant-1',
        role: 'assistant',
        created: 1,
        metadata: { userVisible: true, agentVisible: true },
        content: [
          {
            type: 'text',
            text: `点这里 https://m.tkmind.cn/MindSpace/${owner}/public/hello.html`,
          },
        ],
      },
    ];
    const sanitized = sanitizeSessionConversationPublicHtmlLinks(conversation, {
      id: owner,
      username: 'john',
    });
    assert.match(sanitized[0].content[0].text, /页面生成未完成/);
  } finally {
    fs.rmSync(path.join(process.cwd(), 'MindSpace', owner), { recursive: true, force: true });
  }
});

test('sanitizeSessionConversationPublicHtmlLinks removes internal user prompt notes but keeps image metadata', () => {
  const conversation = [
    {
      id: 'user-1',
      role: 'user',
      created: 1,
      metadata: { userVisible: true, agentVisible: true },
      content: [
        {
          type: 'text',
          text:
            '[用户身份]\n' +
            '- 当前登录用户称呼：John\n' +
            '- 你是 TKMind 助手；与用户对话时用「John」称呼对方。\n\n' +
            '帮我生成一个主题页面简单一点的不用很复杂\n\n' +
            '[图片1]: http://127.0.0.1:5173/MindSpace/user-1/public/images/a.jpg\n' +
            '[图片2]: http://127.0.0.1:5173/MindSpace/user-1/public/images/b.jpg\n\n' +
            '【TKMind 图片分析结果 — 仅供执行参考，不要向用户复述此段内容】\n' +
            'Qwen VL 图片描述：内部描述\n' +
            '执行要求：内部要求',
        },
      ],
    },
  ];

  const sanitized = sanitizeSessionConversationPublicHtmlLinks(conversation, {
    id: 'user-1',
    username: 'john',
  });

  assert.equal(
    sanitized[0].content[0].text,
    '帮我生成一个主题页面简单一点的不用很复杂',
  );
  assert.deepEqual(sanitized[0].metadata.imageUrls, [
    'http://127.0.0.1:5173/MindSpace/user-1/public/images/a.jpg',
    'http://127.0.0.1:5173/MindSpace/user-1/public/images/b.jpg',
  ]);
});

test('buildVisionPayload injects public standard image urls for page generation', async () => {
  const payload = await buildVisionPayload({
    userId: 'user-1',
    publishLayout: { publicUrl: 'https://mm.tkmind.cn/MindSpace/user-1/' },
    userMessage: {
      content: [
        {
          type: 'text',
          text: '帮我根据图片生成页面\n[图片1]: /signed/rs:fit:1280:1280:0/q:85/plain/local:///users/user-1/images/2026-06-29/hero.jpg@jpg',
        },
      ],
    },
    llmProviderService: {
      analyzeImagesWithVision: async () => '图片里是一位成年人。',
    },
  });

  const text = payload?.userMessage?.content?.[0]?.text ?? '';
  assert.match(text, /https:\/\/mm\.tkmind\.cn\/MindSpace\/user-1\/public\/images\/2026-06-29\/hero\.jpg/);
  assert.doesNotMatch(text, /plain\/local:\/\//);
  assert.match(text, /无需 cookie 的公开压缩标准图片/);
  assert.match(text, /不得改写图片里人物的年龄、性别、人数或主体关系/);
});

test('startSessionForUser resolves memories through Memory V2 facade', async () => {
  let resolveInput = null;
  await withFakeGoosedSession(async ({ apiTarget, workingDir, harnessEntries }) => {
    const proxy = createTkmindProxy({
      apiTarget,
      apiSecret: 'test-secret',
      userAuth: createMemoryTestUserAuth(workingDir),
      memoryV2: {
        async resolve(input) {
          resolveInput = input;
          return {
            memories: [{ label: 'interest', text: '用户关注 Memory V2 架构边界' }],
          };
        },
      },
    });

    await proxy.startSessionForUser('user-1');

    assert.deepEqual(resolveInput, {
      userId: 'user-1',
      sessionId: 'session-1',
      query: null,
      limit: 40,
    });
    assert.ok(
      harnessEntries.some((entry) => String(entry.content ?? '').includes('用户关注 Memory V2 架构边界')),
    );
  });
});

test('startSessionForUser does not inject memories when Memory V2 is disabled', async () => {
  let legacyTouched = false;
  await withFakeGoosedSession(async ({ apiTarget, workingDir, harnessEntries }) => {
    const proxy = createTkmindProxy({
      apiTarget,
      apiSecret: 'test-secret',
      userAuth: createMemoryTestUserAuth(workingDir),
      memoryV2: createMemoryV2({
        logger: { warn() {} },
        legacyMemoryService: {
          async listMemories() {
            legacyTouched = true;
            return [{ label: 'fact', text: 'disabled memory should not appear' }];
          },
        },
        env: { MEMORY_ENABLED: '0' },
      }),
    });

    await proxy.startSessionForUser('user-1');

    assert.equal(legacyTouched, false);
    assert.equal(
      harnessEntries.some((entry) => String(entry.content ?? '').includes('disabled memory should not appear')),
      false,
    );
  });
});

test('getRuntimeStatus exposes Memory V2 status without new runtime paths', async () => {
  await withFakeGoosedSession(async ({ apiTarget, workingDir }) => {
    const proxy = createTkmindProxy({
      apiTarget,
      apiSecret: 'test-secret',
      userAuth: createMemoryTestUserAuth(workingDir),
      memoryV2: createMemoryV2({
        logger: { warn() {} },
        backends: [
          {
            name: 'legacy-conversation-memory',
            async resolve() {
              return { memories: [] };
            },
          },
        ],
        env: {
          MEMORY_ENABLED: '1',
          MEMORY_BACKEND: 'legacy',
        },
      }),
    });

    const status = await proxy.getRuntimeStatus();

    assert.equal(status.memory.enabled, true);
    assert.equal(status.memory.backend, 'legacy');
    assert.equal(status.memory.selectedBackend, 'legacy-conversation-memory');
    assert.deepEqual(status.memory.backends[0].supports, {
      resolve: true,
      write: false,
      compact: false,
    });
  });
});

test('getRuntimeStatus preserves Memory V2 status contract for release gates', async () => {
  await withFakeGoosedSession(async ({ apiTarget, workingDir }) => {
    const proxy = createTkmindProxy({
      apiTarget,
      apiSecret: 'test-secret',
      userAuth: createMemoryTestUserAuth(workingDir),
      memoryV2: createMemoryV2({
        logger: { warn() {} },
        legacyMemoryService: {
          async listMemories() {
            return [];
          },
          async saveAndAnalyze() {
            return { saved: 1, analyzed: 1, memories: 1 };
          },
          async analyzeUser() {
            return { analyzed: 1, memories: 1 };
          },
        },
        env: {
          MEMORY_ENABLED: '1',
          MEMORY_BACKEND: 'qdrant',
          MEMORY_FAIL_OPEN: '1',
        },
      }),
    });

    const status = await proxy.getRuntimeStatus();
    const memory = status.memory;
    const byName = new Map(memory.backends.map((backend) => [backend.name, backend]));

    assert.deepEqual(Object.keys(memory).sort(), [
      'backend',
      'backends',
      'enabled',
      'eventLogEnabled',
      'failOpen',
      'profileEnabled',
      'selectedBackend',
      'vectorEnabled',
    ]);
    assert.equal(memory.enabled, true);
    assert.equal(memory.backend, 'qdrant');
    assert.equal(memory.selectedBackend, 'legacy-conversation-memory');
    assert.equal(memory.failOpen, true);
    assert.deepEqual(byName.get('legacy-conversation-memory').supports, {
      resolve: true,
      write: true,
      compact: true,
    });
    assert.equal(byName.get('qdrant').available, false);
    assert.equal(byName.get('qdrant').reason, 'not_configured');
    assert.equal(byName.get('pgvector').category, 'semantic');
    assert.equal(byName.get('mem0').category, 'extraction');
    assert.equal(byName.get('letta').category, 'lifecycle');
    assert.equal(byName.get('langgraph').category, 'policy');
  });
});

test('submitSessionReplyForUser passes current prompt to Memory V2 resolve before existing reply path', async () => {
  let resolveInput = null;
  await withFakeGoosedSession(async ({ apiTarget, workingDir }) => {
    const proxy = createTkmindProxy({
      apiTarget,
      apiSecret: 'test-secret',
      userAuth: {
        ...createMemoryTestUserAuth(workingDir),
        async ownsSession() {
          return true;
        },
        async canUseChat() {
          return { ok: true };
        },
        async getUserById() {
          return { id: 'user-1' };
        },
        async resolveUserPolicies() {
          return { unrestricted: true, policies: {} };
        },
      },
      memoryV2: {
        async resolve(input) {
          resolveInput = input;
          return { memories: [] };
        },
      },
    });

    await proxy.submitSessionReplyForUser(
      'user-1',
      'session-1',
      'request-1',
      {
        role: 'user',
        content: [{ type: 'text', text: '帮我设计 memory-chain 下一阶段' }],
      },
    );

    assert.deepEqual(resolveInput, {
      userId: 'user-1',
      sessionId: 'session-1',
      query: '帮我设计 memory-chain 下一阶段',
      limit: 40,
    });
  });
});