public override bool Perform()
{
List<Slots> missing = CourseConstructor.ContainsScheduledCourseData(Semantics);
if (missing.Count > 0)
{
PromptForMissing(Semantics, missing);
return false;
}
Course = CourseConstructor.ContructScheduledCourse(Semantics);
if (Course == null)
{
correctCourse();
return false;
}
else
{
List<IFilter<Course>> missingClasses = Student.Schedule.GetMissingPreReqs(Course);
if (missingClasses.Count > 0)
{
DialogManager.Instance.InformPreReqs(Course, missingClasses);
return false;
}
else
{
if (!CourseConstructor.IsSemesterValid(Course.Semester, Course.Year)) {
RecoManager.Instance.Say("That semester is past your graduation date! Please install a flux capacitor and accelerate to 88 miles per hour.");
return false;
}
switch (Course.Semester)
{
case Semester.Fall:
if (!Course.Course.fall)
{
DialogManager.Instance.notOffered(Semantics, Course.Semester);
return false;
}
break;
case Semester.Spring:
if (!Course.Course.spring)
{
DialogManager.Instance.notOffered(Semantics, Course.Semester);
return false;
}
break;
default:
return false;
}
Student.AddCourse(Course);
Student.RemoveBookmark(Course.Course);
return true;
}
}
}
public List<ScheduledCourse> GetBeforeClass(ScheduledCourse course)
{
List<ScheduledCourse> beforeCourses = new List<ScheduledCourse>();
foreach(ScheduledCourse c in Courses){
if(course.isPreviousCourse(c)){
beforeCourses.Add(c);
}
}
return beforeCourses;
}
public MissingPrereqArgs(ScheduledCourse course, List<IFilter<Course>> prereqs)
{
this.prereqs = course.Course.GetAllPrereqs().Distinct().ToList();
this.prereqs.Sort();
List<IFilter<Course>> missing = new List<IFilter<Course>>();
//TODO: BrianR get prereqs using course requirements and registered courses
foreach (var prereq in prereqs)
{
int count = (from c in DialogManager.Instance.CurrStudent.Schedule.Courses
where prereq.Matches(c.Course)
select c.Course).Count();
if (count == 0)
{
missing.Add(prereq);
}
}
this.prereqs = missing;
this.Course = course;
}
public List<IFilter<Course>> GetMissingPreReqs(ScheduledCourse course)
{
List<IFilter<Course>> missing = new List<IFilter<Course>>();
List<ScheduledCourse> previousCourses = this.GetBeforeClass(course);
System.Console.WriteLine("PreviousCourses");
foreach (ScheduledCourse c in previousCourses)
{
System.Console.WriteLine("Previous: " + c.Course.DeptAbv + c.Course.Number);
}
//TODO: BrianR get prereqs using course requirements and registered courses
foreach (var prereq in course.Course.Prerequisites)
{
int count = (from c in previousCourses
where prereq.Matches(c.Course)
select c.Course).Count();
if (count == 0)
{
missing.Add(prereq);
}
}
return missing;
}
private void OnMissingPreReqs(ScheduledCourse course, List<IFilter<Course>> missing)
{
var evt = missingPrereqs;
if (evt != null)
evt(this, new MissingPrereqArgs(course, missing));
}
public void InformPreReqs(ScheduledCourse course, List<IFilter<Course>> missing)
{
OnMissingPreReqs(course, missing);
List<IFilter<Course>> scheduledTooLate = new List<IFilter<Course>>();
foreach (var prereq in missing)
{
int count = (from c in CurrStudent.Schedule.Courses
where prereq.Matches(c.Course)
select c.Course).Count();
if (count > 0)
{
scheduledTooLate.Add(prereq);
}
}
if (scheduledTooLate.Count == 0)
{
RecoManager.Instance.Say("You are missing prerequisites for " + course.Course.ToString());
}
else {
string str = "";
foreach (IFilter<Course> filter in scheduledTooLate)
{
str += Filter<Course>.toSpokenString(filter) + " ";
}
RecoManager.Instance.Say("You must schedule " + course.Course.ToString() + " after " + str);
}
}
public void AddCourse(ScheduledCourse course)
{
Schedule.Courses.Add(course);
foreach (DegreeRequirement req in Degree.Requirements.Where(c => c.Fulfillment == null))
{
if (req.CourseRequirement.Matches(course.Course))
{
req.Fulfillment = course;
break;
}
}
OnScheduleChanged();
}
public ScheduledCourse MoveCourse(ScheduledCourse course)
{
//Remove existing course then add the new course
//Return exiting course for undo
ScheduledCourse existing = FindCourse(course.Course);
if (existing != null)
{
RemoveCourse(existing.Course);
}
AddCourse(course);
OnScheduleChanged();
return existing;
}
public void LoadSchedule(String filepath)
{
using (StreamReader readFile = new StreamReader(filepath))
{
string line;
string[] data;
while ((line = readFile.ReadLine()) != null)
{
data = line.Split(',');
if (data.Length >= 4)
{
Department dept = CourseCatalog.Instance.GetDepartment(data[0]);
bool success = dept != null;
int number;
success &= int.TryParse(data[1], out number);
Semester sem;
success &= Enum.TryParse(data[2], out sem);
int year;
success &= int.TryParse(data[3], out year);
if (success)
{
Course course = CourseCatalog.Instance.GetCourse(dept, number);
ScheduledCourse scheduled_course = new ScheduledCourse(course, sem, year);
AddCourse(scheduled_course);
}
}
}
}
}
public Boolean isPreviousCourse(ScheduledCourse otherCourse)
{
//Returns true of otherCourse has been finished before this starts.
if (this.Year > otherCourse.Year) {
return true;
}
else if (this.Year == otherCourse.Year)
{
return (this.Semester == Semester.Fall && otherCourse.Semester == Semester.Spring);
}
else
{
return false;
}
}
/// <summary>
/// Contructs the scheduled course, will get the year and semester from the ActionManager
/// if they are not part of the semantic value
/// </summary>
/// <param name="semantics">The semantics.</param>
/// <returns></returns>
public static ScheduledCourse ContructScheduledCourse(SemanticValueDict semantics)
{
Course course = ContructCourse(semantics);
if (course == null)
{
return null;
}
Semester? sem = GetSemester(semantics, DialogManager.Instance.CurrentSemester);
int? year = GetYear(semantics, DialogManager.Instance.CurrentYear);
if (year == null)
throw new InvalidOperationException("Should not be call without valid year information");
if (sem == null)
throw new InvalidOperationException("Should not be called without semester information");
ScheduledCourse sCourse = new ScheduledCourse(course, sem.Value, year.Value);
return sCourse;
}
