#!/usr/bin/env node
const fs = require('fs');
const http = require('http');
const os = require('os');
const path = require('path');
const { analyzeFmodeImage } = require('../mcp/src/tools/fmode-image-analysis');

async function main() {
  const noToken = await analyzeFmodeImage({
    images: [tinyPngDataUrl()],
    prompt: '识别图片内容',
    allowEnvToken: false
  });
  assert(noToken.status === 'needs_token', 'missing token should return needs_token');
  assert(Array.isArray(noToken.errors) && noToken.errors.length === 0, 'missing token should keep errors empty');
  assert(!/Bearer\s+/i.test(JSON.stringify(noToken)), 'missing token output should not leak bearer headers');
  assert(/apig-pay/.test(noToken.assistantMessage), 'missing token output should include recharge link');

  const mock = await startMockFmode();
  try {
    const out = path.join(os.tmpdir(), `fmode-image-analysis-smoke-${Date.now()}`);
    const result = await analyzeFmodeImage({
      baseUrl: mock.url,
      path: 'v1/chat/completions',
      fmodeToken: 'mock-platform-token',
      images: [tinyPngDataUrl()],
      prompt: '请用中文识别图片中的文字和主体。',
      output: out,
      allowEnvToken: false
    });

    assert(result.status === 'ok', 'mock image analysis should return ok');
    assert(result.summary.model === 'doubao-seed-2-0-pro-260215', 'default model should be doubao-seed-2-0-pro-260215');
    assert(result.assistantMessage.includes('Fmode 图片分析结果'), 'assistant message should include result heading');
    assert(result.data.analysis.includes('测试图片'), 'analysis text should be parsed from mock response');
    assert(result.files.length === 2 && result.files.every(file => fs.existsSync(file)), 'output files should be written');

    const request = mock.requests[0];
    assert(request.headers.authorization === 'Bearer mock-platform-token', 'mock request should include platform token');
    assert(request.body.model === 'doubao-seed-2-0-pro-260215', 'request should use the configured default model');
    assert(Array.isArray(request.body.messages), 'request should use OpenAI-compatible messages');
    const userMessage = request.body.messages.find(item => item.role === 'user');
    assert(Array.isArray(userMessage.content), 'user content should be multimodal array');
    assert(userMessage.content.some(item => item.type === 'image_url'), 'user content should include image_url');
    assert(!JSON.stringify(result).includes('mock-platform-token'), 'public result should not leak token');
  } finally {
    await mock.close();
  }

  console.log('fmode image analysis smoke ok');
}

function startMockFmode() {
  const requests = [];
  const server = http.createServer((req, res) => {
    if (!req.url.startsWith('/v1/chat/completions')) {
      res.writeHead(404, { 'content-type': 'application/json' });
      res.end(JSON.stringify({ error: 'not_found' }));
      return;
    }
    let body = '';
    req.on('data', chunk => { body += chunk; });
    req.on('end', () => {
      requests.push({
        headers: req.headers,
        body: body ? JSON.parse(body) : {}
      });
      res.writeHead(200, { 'content-type': 'application/json' });
      res.end(JSON.stringify({
        choices: [
          {
            finish_reason: 'stop',
            message: {
              content: '这是一张测试图片，可见一个小色块；未发现明显风险。'
            }
          }
        ],
        usage: {
          prompt_tokens: 12,
          completion_tokens: 18,
          total_tokens: 30
        }
      }));
    });
  });
  return new Promise(resolve => {
    server.listen(0, '127.0.0.1', () => {
      resolve({
        url: `http://127.0.0.1:${server.address().port}`,
        requests,
        close: () => new Promise(done => server.close(done))
      });
    });
  });
}

function tinyPngDataUrl() {
  return 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mP8/x8AAwMCAO+/p9sAAAAASUVORK5CYII=';
}

function assert(condition, message) {
  if (!condition) throw new Error(message);
}

main().catch(error => {
  console.error(error && error.stack ? error.stack : String(error));
  process.exit(1);
});