public dynamic readFiles(string fileName, string type)
{
string filePath = @"..\..\..\..\files\" + fileName;
List <string> lines;
try
{
lines = File.ReadAllLines(filePath).ToList();
}
catch
{
Console.WriteLine("File doesn't exist, try with right file path");
return(false);
}
List <dynamic> objectList = new List <dynamic>();
foreach (var line in lines)
{
if (type == "student")
{
Student obj = JsonConvert.DeserializeObject <Student>(line);
objectList.Add(obj);
}
else if (type == "semester")
{
Semester obj = JsonConvert.DeserializeObject <Semester>(line);
objectList.Add(obj);
}
else
{
Course obj = JsonConvert.DeserializeObject <Course>(line);
objectList.Add(obj);
}
}
return(objectList);
}
//Methods
public dynamic createDeepCopy()
{
Semester newSemesterObject = new Semester(semesterCode, year);
return(newSemesterObject);
}
static void Main(string[] args)
{
HandlerClass handler = new HandlerClass();
handler.processCompleted += eventHandlerFunction;
FileManager fileManager = new FileManager();
List <dynamic> studentList = fileManager.readFiles("students.json", "student");
List <dynamic> semesterList = fileManager.readFiles("semesters.json", "semester");
List <dynamic> courseList = fileManager.readFiles("courses.json", "course");
Console.WriteLine("Welcome to the Student Management System\n");
while (true)
{
StartLabel:
displayInformation(studentList, "student");
int option = firstWorkFlowInput();
if (option > 3)
{
break;
}
else
{
if (option == 1)
{
Student obj = handler.inputStudent();
studentList.Add(obj);
if (!semesterList.Any(item => item.semesterCode.ToLower() == obj.joiningBatch.semesterCode.ToLower() &&
item.year.ToLower() == obj.joiningBatch.year.ToLower()))
{
semesterList.Add(obj.joiningBatch);
}
}
else if (option == 2)
{
Console.WriteLine("Enter Student id.");
string id = Console.ReadLine();
int index = specificStudentIndex(studentList, id);
if (index == -1)
{
Console.WriteLine("Student not found.\n");
}
else
{
studentList[index].getFormatedOutput();
option = semesterOptionChooser();
if (option == 2)
{
goto StartLabel;
}
else if (option > 2)
{
break;
}
else
{
displayInformation(semesterList, "semester");
Console.WriteLine("(if semester not in list just give the new semester code and year).");
Semester obj = handler.inputSemester();
bool flag = true;
foreach (var semester in semesterList)
{
if (semester.semesterCode.ToLower() == obj.semesterCode.ToLower() && semester.year.ToLower() == obj.year.ToLower())
{
flag = false;
}
}
if (flag)
{
semesterList.Add(obj);
studentList[index].attendedSemester.Add(obj.createDeepCopy());
}
else if (studentList[index].attendedSemester.Count == 0)
{
studentList[index].attendedSemester.Add(obj.createDeepCopy());
}
}
displayInformation(courseList, "course");
Console.WriteLine("Enter number of courses be added");
int n = Convert.ToInt32(Console.ReadLine());
List <Course> chosenCourses = new List <Course>();
for (int i = 0; i < n; i++)
{
Console.WriteLine("Enter CourseID");
string courseId = Console.ReadLine();
bool isCourseFound = false;
foreach (var course in courseList)
{
if (course.courseID == courseId)
{
isCourseFound = true;
chosenCourses.Add(course.createDeepCopy());
}
}
if (!isCourseFound)
{
Console.WriteLine("Invalid Course Id, Please Enter a valid course Id.");
i--;
}
}
if (chosenCourses.Count != 0)
{
studentList[index].courseInEachSemester.Add(chosenCourses);
}
}
}
else
{
DeleteLabel:
Console.WriteLine("Enter Student id");
string id = Console.ReadLine();
int index = specificStudentIndex(studentList, id);
if (index != -1)
{
studentList.RemoveAt(index);
}
else
{
Console.WriteLine("Please Enter a Valid and existing student Id.");
goto DeleteLabel;
}
}
}
}
fileManager.writeFiles("semesters.json", semesterList);
fileManager.writeFiles("students.json", studentList);
Console.WriteLine("Thanks for using our service");
}
