'use strict';

const assert = require('assert');
const fs = require('fs');
const path = require('path');
const vm = require('vm');

function jwt(payload) {
  const header = Buffer.from(JSON.stringify({ alg: 'none' })).toString('base64url');
  const body = Buffer.from(JSON.stringify(payload)).toString('base64url');
  return `${header}.${body}.signature`;
}

(async () => {
  const appSource = fs.readFileSync(path.join(__dirname, '..', 'public', 'app.js'), 'utf8');
  const indexSource = fs.readFileSync(path.join(__dirname, '..', 'public', 'index.html'), 'utf8');
  const objectUrls = new Map();
  const downloads = [];
  let objectUrlIndex = 0;

  class TestBlob {
    constructor(parts, options = {}) {
      this.parts = parts;
      this.type = options.type || '';
    }
  }

  const context = vm.createContext({
    console, Set, Map, Date, JSON, Math, String, Number, Object, Array, RegExp, Promise, Uint8Array,
    TextDecoder, setTimeout, clearTimeout,
    atob: value => Buffer.from(value, 'base64').toString('binary'),
    Blob: TestBlob,
    URL: {
      createObjectURL(blob) {
        const url = `blob:test/${++objectUrlIndex}`;
        objectUrls.set(url, blob);
        return url;
      },
      revokeObjectURL() {},
    },
    navigator: { clipboard: { async writeText() {} } },
    document: {
      createElement(tag) {
        if (tag === 'a') {
          return {
            href: '',
            download: '',
            click() {
              downloads.push({ filename: this.download, blob: objectUrls.get(this.href) });
            },
          };
        }
        return { value: '', select() {} };
      },
      body: { appendChild() {}, removeChild() {} },
      execCommand() { return true; },
    },
  });
  vm.runInContext(`${appSource}\nthis.__geminiApp = geminiApp;`, context, { filename: 'public/app.js' });

  const email = 'user@example.com';
  const accessToken = jwt({
    client_id: 'client-1',
    exp: 1893456000,
    'https://api.openai.com/profile': { email },
    'https://api.openai.com/auth': {
      chatgpt_account_id: 'account-1',
      chatgpt_user_id: 'chat-user-1',
      poid: 'organization-1',
      chatgpt_plan_type: 'plus',
    },
  });
  const idToken = jwt({
    email,
    'https://api.openai.com/auth': {
      chatgpt_account_id: 'account-1',
      chatgpt_user_id: 'chat-user-1',
      chatgpt_plan_type: 'plus',
      organizations: [{ id: 'organization-1', is_default: true }],
    },
  });
  const authJson = {
    access_token: accessToken,
    refresh_token: 'refresh-1',
    id_token: idToken,
    email,
  };

  const app = context.__geminiApp();
  assert.strictEqual(app.exportMode.sub2api_json, false, 'sub2api JSON导出默认应关闭');
  assert.match(
    indexSource,
    /x-model="exportMode\.sub2api_json"[^>]*>\s*导出 sub2api JSON/,
    '导出弹窗应显示sub2api JSON勾选项',
  );

  app.accounts = [{ email }];
  app.selectedEmails = new Set([email]);
  app.exportMode.sub2api_json = true;
  app.exportSelectedAccounts();
  assert.strictEqual(app.exportMode.sub2api_json, false, '重新打开导出弹窗应恢复sub2api默认状态');

  const built = app.buildSub2ApiExport(
    [{ email, openai_auth_json: JSON.stringify(authJson) }],
    new Date('2026-08-21T15:33:41Z'),
  );
  const payload = JSON.parse(JSON.stringify(built.data));
  assert.strictEqual(built.skippedCount, 0);
  assert.deepStrictEqual(Object.keys(payload), ['exported_at', 'proxies', 'accounts']);
  assert.strictEqual(payload.exported_at, '2026-08-21T15:33:41Z');
  assert.deepStrictEqual(payload.proxies, []);
  assert.strictEqual(payload.accounts.length, 1);
  const exportedAccount = payload.accounts[0];
  assert.strictEqual(exportedAccount.name, email);
  assert.strictEqual(exportedAccount.platform, 'openai');
  assert.strictEqual(exportedAccount.type, 'oauth');
  assert.strictEqual(exportedAccount.concurrency, 100);
  assert.strictEqual(exportedAccount.priority, 1);
  assert.strictEqual(exportedAccount.rate_multiplier, 1);
  assert.strictEqual(exportedAccount.auto_pause_on_expired, true);
  assert.strictEqual(exportedAccount.credentials.access_token, accessToken);
  assert.strictEqual(exportedAccount.credentials.refresh_token, 'refresh-1');
  assert.strictEqual(exportedAccount.credentials.id_token, idToken);
  assert.strictEqual(exportedAccount.credentials.client_id, 'client-1');
  assert.strictEqual(exportedAccount.credentials.email, email);
  assert.strictEqual(exportedAccount.credentials.expires_at, 1893456000);
  assert.strictEqual(exportedAccount.credentials.chatgpt_account_id, 'account-1');
  assert.strictEqual(exportedAccount.credentials.chatgpt_user_id, 'chat-user-1');
  assert.strictEqual(exportedAccount.credentials.organization_id, 'organization-1');
  assert.strictEqual(exportedAccount.credentials.plan_type, 'plus');
  assert.deepStrictEqual(exportedAccount.extra, { email });
  assert.strictEqual('subscription_expires_at' in exportedAccount.credentials, false, '不得伪造订阅到期时间');
  assert.strictEqual('codex_usage_updated_at' in exportedAccount.extra, false, '不得伪造用量统计');

  const mixed = app.buildSub2ApiExport([
    { email: 'broken-json@example.com', openai_auth_json: '{invalid' },
    { email: 'missing-refresh@example.com', openai_auth_json: JSON.stringify({ access_token: accessToken }) },
    { email, openai_auth_json: authJson },
  ]);
  assert.strictEqual(mixed.skippedCount, 2, '损坏或缺少关键令牌的账号必须跳过');
  assert.strictEqual(mixed.data.accounts.length, 1);

  const numericExpiry = app.buildSub2ApiExport([{
    email,
    openai_auth_json: {
      access_token: 'opaque-access-token',
      refresh_token: 'opaque-refresh-token',
      expires_at: 1893456000000,
    },
  }]);
  assert.strictEqual(numericExpiry.data.accounts[0].credentials.expires_at, 1893456000);
  assert.strictEqual(
    'client_id' in numericExpiry.data.accounts[0].credentials,
    false,
    '授权数据没有client_id时不得写入固定值',
  );

  Object.keys(app.exportFields).forEach(key => { app.exportFields[key] = false; });
  app._exportList = [{ email }];
  app.exportMode = {
    file: false, csv: false, sub2api_json: true, clipboard: false, staging: false,
  };
  app.showExportModal = true;
  const logs = [];
  app.addLog = (message, type) => logs.push({ message, type });
  let authLoadCount = 0;
  app.loadOpenAIAuthForExport = async accounts => {
    authLoadCount++;
    return {
      accounts: accounts.map(account => ({ ...account, openai_auth_json: JSON.stringify(authJson) })),
      missingCount: 0,
    };
  };

  await app.confirmExport();
  assert.strictEqual(authLoadCount, 1, '只选sub2api时应读取一次授权JSON');
  assert.strictEqual(downloads.length, 1, '只选sub2api且未选字段时也应下载');
  assert.match(downloads[0].filename, /^sub2api-account-\d{14}\.json$/);
  assert.strictEqual(downloads[0].blob.type, 'application/json;charset=utf-8');
  const downloaded = JSON.parse(downloads[0].blob.parts.join(''));
  assert.strictEqual(downloaded.accounts.length, 1);
  assert.strictEqual(downloaded.accounts[0].credentials.email, email);
  assert.strictEqual(app.showExportModal, false);
  assert.ok(logs.some(item => item.type === 'success' && /sub2api JSON/.test(item.message)));

  downloads.length = 0;
  authLoadCount = 0;
  logs.length = 0;
  app.exportFields.email = true;
  app.showExportModal = true;
  app.exportMode = {
    file: false, csv: true, sub2api_json: true, clipboard: false, staging: false,
  };
  await app.confirmExport();
  assert.strictEqual(authLoadCount, 1, 'CSV与sub2api同时导出时授权数据只读取一次');
  assert.deepStrictEqual(
    downloads.map(item => path.extname(item.filename)).sort(),
    ['.csv', '.json'],
  );

  downloads.length = 0;
  logs.length = 0;
  app.showExportModal = true;
  Object.keys(app.exportFields).forEach(key => { app.exportFields[key] = false; });
  app.exportMode = {
    file: false, csv: false, sub2api_json: true, clipboard: false, staging: false,
  };
  app.loadOpenAIAuthForExport = async accounts => ({
    accounts: accounts.map(account => ({ ...account, openai_auth_json: '' })),
    missingCount: accounts.length,
  });
  await app.confirmExport();
  assert.strictEqual(downloads.length, 0, '没有有效授权账号时不得生成空sub2api文件');
  assert.strictEqual(app.showExportModal, true, '未生成文件时应保留弹窗供用户调整');
  assert.ok(logs.some(item => item.type === 'error' && /未生成 sub2api 文件/.test(item.message)));

  console.log('account_sub2api_export.test.js: PASS');
})().catch(error => {
  console.error(error);
  process.exitCode = 1;
});