const test = require('node:test');
const assert = require('node:assert/strict');
const fs = require('node:fs');

function loadCpaApi(fetchImpl) {
  const source = fs.readFileSync('background/cpa-api.js', 'utf8');
  const scope = {};
  new Function('self', 'fetch', `${source}; return self.MultiPageBackgroundCpaApi;`)(scope, fetchImpl);
  return scope.MultiPageBackgroundCpaApi;
}

function base64UrlJson(value) {
  return Buffer.from(JSON.stringify(value), 'utf8')
    .toString('base64')
    .replace(/\+/g, '-')
    .replace(/\//g, '_')
    .replace(/=+$/g, '');
}

function jwt(payload) {
  return `${base64UrlJson({ alg: 'RS256', typ: 'JWT' })}.${base64UrlJson(payload)}.signature`;
}

test('buildCpaSessionAuthJson converts ChatGPT session to codex auth JSON', () => {
  const api = loadCpaApi(async () => {
    throw new Error('fetch should not be called');
  }).createCpaApi();
  const accessToken = jwt({
    exp: 1893456000,
    'https://api.openai.com/auth': {
      chatgpt_account_id: 'acct_123',
      chatgpt_user_id: 'user_123',
      chatgpt_plan_type: 'plus',
    },
    'https://api.openai.com/profile': {
      email: 'profile@example.com',
    },
  });

  const result = api.buildCpaSessionAuthJson({
    accessToken,
    session: {
      user: { email: 'session@example.com' },
      refresh_token: 'refresh-token',
      session_token: 'session-token',
    },
  }, {
    now: new Date('2026-05-21T00:00:00.000Z'),
  });

  assert.equal(result.fileName, 'codex-session@example.com-plus.json');
  assert.equal(result.email, 'session@example.com');
  assert.equal(result.accountId, 'acct_123');
  assert.equal(result.hasRefreshToken, true);
  assert.deepEqual(result.authJson, {
    type: 'codex',
    account_id: 'acct_123',
    chatgpt_account_id: 'acct_123',
    email: 'session@example.com',
    name: 'session@example.com',
    plan_type: 'plus',
    chatgpt_plan_type: 'plus',
    id_token: result.authJson.id_token,
    id_token_synthetic: true,
    access_token: accessToken,
    refresh_token: 'refresh-token',
    session_token: 'session-token',
    last_refresh: '2026-05-21T00:00:00.000Z',
    expired: '2030-01-01T00:00:00.000Z',
  });
  assert.match(result.authJson.id_token, /\.synthetic$/);
});

test('importCurrentChatGptSession posts auth JSON to CPA management endpoint', async () => {
  const calls = [];
  const fetchImpl = async (url, options = {}) => {
    calls.push({ url, options });
    return {
      ok: true,
      status: 200,
      json: async () => ({ ok: true }),
    };
  };
  const logs = [];
  const api = loadCpaApi(fetchImpl).createCpaApi({
    addLog: async (message, level) => logs.push({ message, level }),
    fetchImpl,
  });
  const accessToken = jwt({
    exp: 1893456000,
    'https://api.openai.com/auth': {
      chatgpt_account_id: 'acct_abc',
      chatgpt_plan_type: 'plus',
    },
    'https://api.openai.com/profile': {
      email: 'sync@example.com',
    },
  });

  const result = await api.importCurrentChatGptSession({
    vpsUrl: 'http://127.0.0.1:8317/management.html#/oauth',
    vpsPassword: 'management-secret',
    session: {
      accessToken,
      user: { email: 'sync@example.com' },
    },
  }, {
    logLabel: '步骤 10',
    now: new Date('2026-05-21T00:00:00.000Z'),
  });

  assert.equal(result.cpaImportedFileName, 'codex-sync@example.com-plus.json');
  assert.equal(result.cpaImportedEmail, 'sync@example.com');
  assert.equal(calls.length, 1);
  assert.equal(
    calls[0].url,
    'http://127.0.0.1:8317/v0/management/auth-files?name=codex-sync%40example.com-plus.json'
  );
  assert.equal(calls[0].options.method, 'POST');
  assert.equal(calls[0].options.headers.Authorization, 'Bearer management-secret');
  assert.equal(calls[0].options.headers['X-Management-Key'], 'management-secret');

  const body = JSON.parse(calls[0].options.body);
  assert.equal(body.type, 'codex');
  assert.equal(body.email, 'sync@example.com');
  assert.equal(body.access_token, accessToken);
  assert.equal(body.chatgpt_account_id, 'acct_abc');
  assert.equal(logs.some((entry) => /CPA 会话导入完成/.test(entry.message) && entry.level === 'ok'), true);
});