private void ManageCourse()
{
bool validSelection = false;
while (!validSelection)
{
Console.Clear();
Console.WriteLine("\t\t* You are working on course management *");
Console.WriteLine("\t\t* 1. Add course *");
Console.WriteLine("\t\t* 2. Modify course *");
Console.WriteLine("\t\t* 3. Delete course *");
Console.WriteLine("\t\t* 4. Display courses *");
Console.WriteLine("\t\t* 5. Back to main menu *");
Console.WriteLine("\t\t****************************************");
Console.Write("Enter an option(1-5): ");
int decision = 0;
try
{
decision = System.Int32.Parse(Console.ReadLine());
}
catch (Exception)
{
decision = 0;
}
//var decision = System.Int32.Parse(Console.ReadLine());
if (decision >= 1 && decision <= 5)
{
validSelection = true;
}
Console.WriteLine();
switch (decision)
{
case 1:
courseManagementView.AddCourse();
ManageCourse();
break;
case 2:
courseManagementView.EditCourse();
ManageCourse();
break;
case 3:
courseManagementView.DeleteCourse();
ManageCourse();
break;
case 4:
courseManagementView.DisplayCourses();
Console.Write("[Enter] to continue...");
Console.ReadLine();
ManageCourse();
break;
case 5:
Console.WriteLine("You select backing to main management selection");
ProcessManagementSelection();
break;
}
}
}
internal void AddClass()
{
Console.WriteLine("Add new class");
Course course = null;
Lecturer lecturer = null;
if (courseController.CourseCount() == 0)
{
Console.WriteLine("There are no courses yet. You should add some courses firstly.");
}
else if (lecturerController.LecturerCount() == 0)
{
Console.WriteLine("There are no lecturers yet. You should add some lecturers firstly.");
}
else if (roomController.RoomCount() == 0)
{
Console.WriteLine("There are no rooms yet. You should add some rooms firstly");
}
else
{
Console.WriteLine();
Console.WriteLine("\t\tCourse List\t\t");
cmv.DisplayCourses();
Console.Write("Enter course id: ");
string courseId = Console.ReadLine();
while (courseController.SearchCourse(courseId) == null)
{
Console.Write("This course never exists. Enter course id: ");
courseId = Console.ReadLine();
}
course = courseController.SearchCourse(courseId);
Console.WriteLine();
Console.WriteLine("\t\tLecturer List\t\t");
lmv.DisplayLecturer();
Console.Write("Enter lecturer id: ");
string lecturerId = Console.ReadLine();
while (lecturerController.SearchLecturer(lecturerId) == null)
{
Console.Write("This lecturer never exists. Enter lecturer id: ");
lecturerId = Console.ReadLine();
}
lecturer = lecturerController.SearchLecturer(lecturerId);
ClassPeriod classPeriod = CreateClassPeriod();
if (classController.ClassesCount() > 0)
{
while (true)
{
// check whether new class period will clash with others in classes list
if (classController.ConflictTime(classPeriod))
{
Console.WriteLine("Your chosen class Period has clashed with the others.");
Console.WriteLine("Please justify to other class period!");
classPeriod = CreateClassPeriod();
}
else if (classController.ConflictLecturer(lecturer.Id, classPeriod))
{
Console.WriteLine("Sorry! At your chosen class time, Lecturer has id \"{0}\" will teaching other class", lecturer.Id);
Console.WriteLine("Please justify to other class period!");
classPeriod = CreateClassPeriod();
}
else
{
break;
}
}
}
if (classController.CreateClass(course, lecturer, classPeriod))
{
Console.WriteLine("Congratulation! you added a new class.");
}
else
{
Console.WriteLine("Sorry! you failed to add a class.");
Console.WriteLine("This class is taken by other lecturer.");
}
}
Console.WriteLine("[Enter] to continue...");
Console.ReadLine();
}
internal void EnrolStudent()
{
if (courseController.CourseCount() == 0)
{
Console.WriteLine("Please add course!");
}
else if (lecturerController.LecturerCount() == 0)
{
Console.WriteLine("Please add lecture!");
}
else if (roomController.RoomCount() == 0)
{
Console.WriteLine("Please add room!");
}
else if (studentController.StudentCount() == 0)
{
Console.WriteLine("Please add some students!");
}
else if (classController.ClassesCount() == 0)
{
Console.WriteLine("Please add class!");
}
else
{
Console.WriteLine("\t\t** Student List **");
DisplayStudent();
Console.Write("\nSelect one student id: ");
string id = Console.ReadLine();
while (studentController.SearchStudent(id) == null)
{
Console.WriteLine("student not found!Please try again");
Console.Write("> ");
id = Console.ReadLine();
}
Student student = studentController.SearchStudent(id);
Console.WriteLine("\t\t** Course List **");
CourseManagementView coursemv = new CourseManagementView(courseController);
coursemv.DisplayCourses();
Console.Write("\nSelect one course id: ");
string crid = Console.ReadLine();
while (courseController.SearchCourse(crid) == null)
{
Console.WriteLine("\ncourse not found!Please try again");
Console.Write("> ");
crid = Console.ReadLine();
}
Course course = courseController.SearchCourse(crid);
ClassManagementView classmv = new ClassManagementView(classController, courseController, lecturerController, roomController);
classmv.PrintClassOfCourse(crid);
Console.Write("Please enter a class name to enrol in: ");
string className = Console.ReadLine();
//while (classController.SearchClass(className) == null)
//{
// Console.Write("\nClass not found. Try again");
// Console.Write("> ");
// className = Console.ReadLine();
//}
//Class enrolClass = classController.SearchClass(className);
Class enrolClass = null;
bool clashed = false;
while (true)
{
enrolClass = classController.SearchClass(className);
if (classController.SearchClass(className) == null)
{
Console.Write("\nClass not found. Try again");
Console.Write("> ");
className = Console.ReadLine();
if (className == "")
{
clashed = true;
break;
}
}
else if (studentController.CheckClashTime(enrolClass, student, classController))
{
Console.WriteLine("You select a class has period that clashed with your current classes.");
Console.Write("You should select different class: ");
className = Console.ReadLine();
if (className == "")
{
clashed = true;
break;
}
}
else
{
break;
}
}
//while (studentController.CheckClashTime(enrolClass, student, classController))
//{
// Console.WriteLine("You select a class has period that clashed with your current classes.");
// Console.Write("You should select different class [Enter] to exit: ");
// className = Console.ReadLine();
// if (className != "")
// {
// while (classController.SearchClass(className) == null)
// {
// Console.Write("\nClass not found. Try again");
// Console.Write("> ");
// className = Console.ReadLine();
// }
// enrolClass = classController.SearchClass(className);
// if (student.GetMyClasses().Count > 4)
// {
// Console.WriteLine("You are not allowed to add class any more.");
// }
// }
// else
// break;
//}
if (clashed)
{
Console.WriteLine("Student \"{0}\" failed to enrol class \"{1}\".", id, enrolClass.ToString());
}
else
{
if (studentController.EnrolClass(enrolClass, student, classController))
{
Console.WriteLine("Student \"{0}\" enrolled to class \"{1}\".", id, enrolClass.ToString());
}
}
}
Console.Write("[Enter] to continue...");
Console.ReadLine();
}
internal void EditClass()
{
if (classController.ClassesCount() == 0)
{
Console.WriteLine("No class found! you need to add class.");
Console.WriteLine("[Enter] to continue...");
Console.ReadLine();
}
else
{
DisplayClasses();
Console.Write("Enter only one class name as shown above: ");
string editClassName = Console.ReadLine();
Class expectedClass = classController.SearchClass(editClassName);
while (expectedClass == null)
{
Console.Write("\nNot class found! Enter class name again: ");
editClassName = Console.ReadLine();
expectedClass = classController.SearchClass(editClassName);
}
/* Backup information of class that will be updated.
* Recreate that class if something go wrong during update process
*/
var lecturerInfo = expectedClass.Lecturer;
var courseInfo = expectedClass.Course;
string className = expectedClass.ToString();
List <ClassPeriod> cpList = expectedClass.ClassPeriodList;
//Console.WriteLine("*******Lecturer id list******** ");
//List<Lecturer> lecturerList = lecturerController.GetLecturers();
//foreach (Lecturer l in lecturerList)
//{
// Console.WriteLine(l.Id);
//}
LecturerManagementView lmv = new LecturerManagementView(lecturerController);
Console.WriteLine("\n\t\t Lecturer list");
lmv.DisplayLecturer();
Console.Write("\nEnter one of above id to change \"{0}\"[Enter to keep]: ", lecturerInfo.Id);
string nLecId = Console.ReadLine();
Lecturer lecturer = null;
if (nLecId != "")
{
lecturer = lecturerController.SearchLecturer(nLecId);
while (lecturer == null)
{
Console.Write("\nNot found this lecture! Enter again: ");
nLecId = Console.ReadLine();
lecturer = lecturerController.SearchLecturer(nLecId);
}
lecturerInfo = lecturer;
}
//Console.WriteLine("*******Course id list******** ");
//List<Course> courseList = courseController.GetCourses();
//foreach (Course c in courseList)
//{
// Console.WriteLine(c.Id);
//}
CourseManagementView cmv = new CourseManagementView(courseController);
Console.WriteLine("\n\t\t Course list");
cmv.DisplayCourses();
Console.Write("\nEnter one of above id to change \"{0}\"[Enter to keep]: ", courseInfo.Id);
string nCourseId = Console.ReadLine();
Course course = null;
if (nCourseId != "")
{
course = courseController.SearchCourse(nCourseId);
while (course == null)
{
Console.Write("\nNot found this course! Enter again: ");
nCourseId = Console.ReadLine();
course = courseController.SearchCourse(nCourseId);
}
courseInfo = course;
}
Console.WriteLine();
Console.WriteLine("********** Class Periods ***********");
int classPeriodCount = cpList.Count;
for (int i = 0; i < classPeriodCount; i++)
{
Console.WriteLine("\nClass period number \"{0}\"", i + 1);
Console.WriteLine(cpList[i].ToString());
Console.WriteLine();
}
int number = 0;
bool valid = false;
while (!valid)
{
try
{
Console.Write("\nEnter period number to update: ");
number = int.Parse(Console.ReadLine());
valid = true;
}
catch (Exception)
{
Console.Write("\nUnexisted period number!Try again: ");
}
}
number -= 1;
ClassPeriod backupCP = cpList[number];
cpList.RemoveAt(number);
ClassPeriod nCp = CreateClassPeriod();
bool conflicted = true;
while (conflicted)
{
if (cpList.Count == 0)
{
conflicted = false;
}
foreach (ClassPeriod cp in cpList)
{
conflicted = nCp.TimeConflict(cp);
if (conflicted)
{
break;
}
}
if (conflicted)
{
Console.WriteLine("\nNew period has clashed with other remaining period of class to update.");
nCp = CreateClassPeriod();
}
}
while (true)
{
if (classController.ConflictTime(nCp))
{
Console.WriteLine("\nNew period has clashed with other period of different classes.");
nCp = CreateClassPeriod();
}
else if (classController.ConflictLecturer(nLecId, nCp))
{
Console.WriteLine("\nNew lecturer \"{0}\" teaches a class at the same time of new period.");
nCp = CreateClassPeriod();
}
else
{
break;
}
}
cpList.Add(nCp);
classController.DeleteClassName(editClassName);
if (classController.UpdateClass(lecturerInfo, courseInfo, nCp))
{
Console.WriteLine("\nUpdated class({0})", lecturerInfo.Id + courseInfo.Id);
Console.Write("[Enter] to continue...");
Console.ReadLine();
}
else
{
classController.CreateClass(expectedClass.Course, expectedClass.Lecturer, backupCP);
Console.WriteLine("\nUpdate failed!");
Console.Write("[Enter] to continue...");
Console.ReadLine();
}
}
}