public ActionResult Schedule()
{
GPFSession session = (GPFSession)TempData["GPFSession"];
if (session == null)
{
return(RedirectToAction("Options", "GPF"));
}
session.Degree = _degreeService.GetDegreeById(session.Degree.Id);
session.Concentration = session.Degree.Concentrations.Find(x => x.Id == session.Concentration.Id);
GPFSchedule schedule = _gpfService.GetSessionSchedule(session);
GPFViewModel model = new GPFViewModel()
{
GPFSession = session,
GPFSchedule = schedule
};
return(View(model));
}
public GPFSchedule GetSessionSchedule(GPFSession session)
{
List <int> toTake = new List <int>();
List <int> missing = new List <int>();
List <Course> temp;
decimal hours = 0;
//add major courses based on session
CourseService crsServ = new CourseService();
List <Course> majorCourses = crsServ.GetCoursesRequiredByDegree(session.Degree.Id);
//populate course ids list from session
List <Course> courseids = new List <Course>(session.ConcentrationCoursesSelected.Count + session.ElectiveCoursesSelected.Count + majorCourses.Count);
courseids.AddRange(majorCourses);
courseids.AddRange(session.ConcentrationCoursesSelected);
courseids.AddRange(session.ElectiveCoursesSelected);
//list of full course objects
List <Course> courses = new List <Course>(courseids.Count);
//Convert each course from an id to a full course object
foreach (Course course in courseids)
{
courses.Add(crsServ.GetCoursesById(course.Id));
toTake.Add(course.Id);
}
foreach (Course course in courses)
{
course.Prerequisites = crsServ.GetCoursePrereqs(course.Id);
if (course.Prerequisites == null)
{
course.Prerequisites = new List <Course>();
}
}
//add any missing prereqs
foreach (Course course in courses)
{
foreach (Course pre in course.Prerequisites)
{
if (!toTake.Contains(pre.Id))
{
missing.Add(pre.Id);
}
}
}
while (missing.Count > 0)
{
foreach (int misId in missing.ToArray())
{
Course toAdd = crsServ.GetCoursesById(misId);
toAdd.Prerequisites = crsServ.GetCoursePrereqs(misId);
if (toAdd.Prerequisites == null)
{
toAdd.Prerequisites = new List <Course>();
}
courses.Add(toAdd);
toTake.Add(misId);
missing.Remove(misId);
}
foreach (Course course in courses)
{
foreach (Course pre in course.Prerequisites)
{
if (!toTake.Contains(pre.Id))
{
missing.Add(pre.Id);
}
}
}
}
//remove any duplicates
temp = new List <Course>();
foreach (Course course in courses)
{
if (!course.isContainedBy(temp))
{
temp.Add(course);
}
}
courses.Clear();
courses.AddRange(temp);
//determine number of hours being taken
foreach (Course course in courses)
{
hours += course.Units;
}
//if less than 48 are being taken, add new concentration classes until at least 48 hours worth of classes are there
if (hours < 48)
{
int count = 0;
List <Course> extras = crsServ.GetCoursesByConcentration(session.Concentration.Id);
foreach (Course course in extras)
{
course.Prerequisites = crsServ.GetCoursePrereqs(course.Id);
if (course.Prerequisites == null)
{
course.Prerequisites = new List <Course>();
}
}
while (hours < 48)
{
if (!extras[count].isContainedBy(courses) && extras[count].Prerequisites.Count == 0)
{
courses.Add(extras[count]);
toTake.Add(extras[count].Id);
hours += extras[count].Units;
}
count++;
}
}
//add any missing prereqs
foreach (Course course in courses)
{
foreach (Course pre in course.Prerequisites)
{
if (!toTake.Contains(pre.Id))
{
missing.Add(pre.Id);
}
}
}
while (missing.Count > 0)
{
foreach (int misId in missing.ToArray())
{
Course toAdd = crsServ.GetCoursesById(misId);
toAdd.Prerequisites = crsServ.GetCoursePrereqs(misId);
if (toAdd.Prerequisites == null)
{
toAdd.Prerequisites = new List <Course>();
}
courses.Add(toAdd);
toTake.Add(misId);
missing.Remove(misId);
}
foreach (Course course in courses)
{
foreach (Course pre in course.Prerequisites)
{
if (!toTake.Contains(pre.Id))
{
missing.Add(pre.Id);
}
}
}
}
//remove any duplicates
temp = new List <Course>();
foreach (Course course in courses)
{
if (!course.isContainedBy(temp))
{
temp.Add(course);
}
}
courses.Clear();
courses.AddRange(temp);
//sort courses using tree
CourseTree tree = new CourseTree(courses);
List <Course> sortedCourses = tree.GetList();
//get class history
List <Course> taken = crsServ.GetCourseHistory(session.Account.Id);
GPFSchedule schedule = new GPFSchedule(session, sortedCourses, taken);
return(schedule);
}
