const request = require('supertest')
    , config = require('./config')
    , should = require('should')
    , cheerio = require('cheerio');

const baseURL = config.baseURL;

describe('Exercise 3. Directory Explorer ', function(){
  describe("When exploring root directory, we:", function(done){
    const files = [
      '0.txt',
      'UppeRCaSeLowerCASE.txt',
      'afox.gif',
      'asq.png',
      'bunny.mp4',
      'bunny.ogv',
      'ex-node.pdf',
      'foo.js',
      'freq.html',
      'freq.txt',
      'four-seasons.mp3',
      'hello world node.txt',
      'hello.txt',
      'identitycrisis',
      'images.json',
      'index.html',
      'myfiles.zip',
      'simple.txt',
      'style.css',
      'thing.jpg',
      'turing.txt' ];

    const dirs= [
      'level-1',
      'icons'
      ];

    let $, linksArr, links, dirFound;

    before(function(done){
      request(baseURL)
      .get('/explore/')
      .expect(200)
      .expect('Content-Type', /text\/html/)
      .end(function(err, res){
        if(err) return done(err);

        $ = cheerio.load(res.text);
        linksArr = [];
        $('a[href]').each(function(index, el){
         var href = $(el).attr('href').toString();
          linksArr.push(href);
        });
        links = linksArr.join(' ');
        done();
      });
    });

  
    it('should have proper links for files', function(){ 
      for (let i=0, l = files.length ; i<l; i++){
        links.should.containEql('file/'+files[i]);
      }
    });

    it('should have proper links for directories', function(){   
      for (let i=0, l = dirs.length ; i<l; i++){
        dirFound = false;
        // check for relative or absolute path
        if(links.indexOf('explore/'+dirs[i]) !== -1 ||
          links.indexOf(dirs[i]) !==-1){
          dirFound = true;
        }
        dirFound.should.equal(true)
      }
    });

    it('should have a link for current folder', function(){   
      var foundCurrent =false
        , currentURL = 'explore/';

      for (let i=0, l = linksArr.length, c = currentURL.length ; i<l; i++){
        // link should end with currentURL
        if(linksArr[i].indexOf(currentURL, linksArr[i].length - c) !== -1){
          foundCurrent =true;
        }
      }
      foundCurrent.should.equal(true);
    });

    it('should NOT have a link for the parent folder', function(){   
      let foundParent = false
      const parentURLs = [
          'explore/..',
          'explore/../'];

      for (let i=0, l = linksArr.length; i<l; i++){
        // link should end with currentURL
        
        for(let j=0; j<parentURLs.length; j++){
          if(linksArr[i].indexOf(parentURLs[j], linksArr[i].length - parentURLs[j].length) !== -1){
            foundParent =true;
          }
        }   
      }
      foundParent.should.equal(false);
    });

  });




  describe("When exploring a level 4 directory, we", function(done){
    const files = [
      'bunny-is-back.mp4',
      'dafiles.zip',
      'ex.pdf',
      'foo.js',
      'hello-level-4.txt',
      'identitycrisis-take2',
      'one-season.mp3',
      'screen.css',
      'strange.jpg',
      'test.html' ];

    const dirs=[
      'level-5',
      'a-dir',
      'another-dir'] 

    let $, linksArr, links, dirFound;
    const level4Path ='level-1/level-2/level-3/level-4/';

    before(function(done){
      request(baseURL)
      .get('/explore/' + level4Path)
      .expect(200)
      .expect('Content-Type', /text\/html/)
      .end(function(err, res){
        if(err) return done(err);

        $ = cheerio.load(res.text);
        linksArr = [];
        $('a[href]').each(function(index, el){
         var href = $(el).attr('href').toString();
          linksArr.push(href);
        });
        links = linksArr.join(' ');

        done();
      });
    });

  
    it('should have proper links for files', function(){   
      for (let i=0, l = files.length ; i<l; i++){
        links.should.containEql('file/' + level4Path + files[i]);
      }
    });

    it('should have proper links for directories', function(){   
      for (let i=0, l = dirs.length ; i<l; i++){
        dirFound = false;
        // check for relative or absolute path
        if(links.indexOf('explore/' + level4Path + dirs[i]) !== -1 ||
        links.indexOf(dirs[i]) !==-1){
          dirFound = true;
        }
        dirFound.should.equal(true)
      }
    });

    it('should have a link for the current folder', function(){   
      let foundCurrent =false;
      const currentURL = 'explore/' + level4Path;

      for (let i=0, l = linksArr.length, c = currentURL.length ; i<l; i++){
        // link should end with currentURL
        if(linksArr[i].indexOf(currentURL, linksArr[i].length - c) !== -1){
          foundCurrent =true;
        }
      }
      foundCurrent.should.equal(true);
    });

    it('should have link for the parent folder', function(){   
      let foundParent =false;
      const parentURLs = [
          'explore/level-1/level-2/level-3',
          'explore/level-1/level-2/level-3/',
          'explore/level-1/level-2/level-3/level-4/..',
          'explore/level-1/level-2/level-3/level-4/../'];

      for (let i=0, l = linksArr.length; i<l; i++){
        // link should end with currentURL
        
        for(let j=0; j<parentURLs.length; j++){
          if(linksArr[i].indexOf(parentURLs[j], linksArr[i].length - parentURLs[j].length) !== -1){
            foundParent =true;
          }
        }   
      }
      foundParent.should.equal(true);
    });

  });  
});