getClassData method

Implementation

Future<List<Course>> getClassData(cID) async{
  List<FileEntry> downloadedCourse = files.containsKey(cID) ? files[cID]! : [];
  logger(files);
  logger("Loaded downloaded courses");
  List<Course> courses = [];
  if (!loggedIn){
    logger("Not logged in, need to log in to Celene");
    bool result = await loginToCelene();
    if (!result){
      throw Exception("ERROR WHILE CONNECTING TO CELENE");
    }
    logger("Successfully logged in to Celene");
  }
  logger(_casAuth?.session.cookieStore.cookies);
  if (_casAuth != null){
    Uri classUrl = getClassUrl(cID);
    logger("Now retrieving class data : class url is ${classUrl}");
    //casAuth!.prepareRequest();
    logger("CAS AUTH HEADERS");
    Response classData;
    try{
      classData = await _casAuth!.session.get(classUrl, headers: _casAuth!.headers);
    }
    on ClientException{
      classData = await _casAuth!.session.get(classUrl, headers: _casAuth!.headers);
    }
    logger("Get response finished");
    if (classData.statusCode == 200){
      logger("GET RESPONSE 200 -> Now parsing the page");
      //casAuth!.session.updateCookies(classData);
      //casAuth!.prepareRequest();
      BeautifulSoup soup = BeautifulSoup(classData.body);
      //logger(soup.prettify());
      Bs4Element? topic = soup.find('ul', class_: 'topics');
      List<Bs4Element> sections = soup.findAll("li", class_: "section course-section main");
      for (Bs4Element i in sections){
        logger("SectionName");
        String? topic = i.find("h3", class_: "sectionname")?.text.trim();
        List<Bs4Element> li_elements = i.findAll("li", class_:"activity activity-wrapper");
        logger("Found ${li_elements.length} li_elements");
        for (Bs4Element i in li_elements){
          Course? newCourse = Course.constructFromCeleneInfo(i,parent: topic);
          if (newCourse != null){
            print("DOWNLOADED COURSES ARE ${downloadedCourse}");
            FileEntry? associatedFile = downloadedCourse.where((e) => e.entryName == newCourse.name).toList().firstOrNull;
            newCourse.downloaded = associatedFile != null;
            newCourse.associatedFile = associatedFile;
            if (newCourse.type == "Dossier" && newCourse.downloaded){
              logger("The folder is downloaded so we have to add all files in this folder");
              for (FileEntry j in (newCourse.associatedFile!.children)!){
                logger("Adding subCourse");
                Course subCourse = Course.constructFromFileInfo(j,topic: topic,parentFolder: newCourse.name);
                subCourse.setFile(j);
                courses.add(subCourse);
              }
            }
            else{
              courses.add(newCourse);
            }
          }
        }
      }
    }
    return courses;
  }
  return courses;
}