const chai          = require('chai');
const should        = chai.should();
const httpMocks     = require('node-mocks-http');
const cheerio       = require('cheerio');
const ExampleStore  = require('../../lib/ExampleStore');
const exStore       = new ExampleStore(__dirname + '/test-examples');
const indexHandlers = require('../../lib/indexHandlers')(exStore);

function invokeHandler(url, handler, options) {
  options = options || {};
  method = options.method || 'GET';

  // Prepare request&response
  var request  = httpMocks.createRequest({
    method: 'GET',
    url: '/'
  });
  var response = httpMocks.createResponse();

  // Invoke route handler, get returned html and load it with cheerio
  handler(request, response);
  var html = response._getData();
  return cheerio.load(html);
}

describe('render index', () => {

  before(() => exStore.init());

  it('without selected repo or example', () => {

    const $ = invokeHandler('/', indexHandlers.getIndexBare);
    const inlineJsData = "let window = {};" +
      $('#inline-js-data').html();
    try {
      eval(inlineJsData);
    } catch(e) {
      throw new Error('injected script in #inline-js-data throws an error: "' + e.message + '');
    }

    const $menuRepoItems = $('#menu-repo li');
    $menuRepoItems.length.should.equal(2);
    const repo1Link = $($menuRepoItems[0]).html();
    const repo2Link = $($menuRepoItems[1]).html();
    repo1Link.should.equal('<a href="/example-repo1">Example Repo 1</a>');
    repo2Link.should.equal('<a href="/example-repo2">Example Repo 2</a>');

  });

});