static void Main(string[] args)
{
//trigger start function to start the application.
int id = 0;
SchoolManagementService schoolManagementService = new SchoolManagementService();
Start(id, schoolManagementService);
}
static void Start(int id, SchoolManagementService schoolManagementService)
{
Console.WriteLine("Enter School Name :");
string schoolName = Console.ReadLine();
if (String.IsNullOrEmpty(schoolName))
{
Console.WriteLine("School name can't be left blank.");
NavigateMessage();
Start(id, schoolManagementService);
}
else if (!Helper.IsString(schoolName))
{
Console.WriteLine("School name can have only alphabets");
NavigateMessage();
Start(id, schoolManagementService);
}
else
{
if (!schoolManagementService.IsSchoolExist(schoolName))
{
Console.WriteLine("School doesn't exist, add a school.");
schoolName = Console.ReadLine();
School school = new School();
school.Id = ++id;
school.Name = schoolName;
schoolManagementService.Schools.Add(school);
}
else
{
id = schoolManagementService.FindSchool(schoolName);
}
schoolManagementService.JsonFileWriteAsync();
Option(id, schoolManagementService);
}
}
static void Option(int id, SchoolManagementService schoolManagementService)
{
var schoolName = schoolManagementService.GetSchoolName(id);
Console.WriteLine($"\nWelcome to {schoolName} Student information management\n");
Console.WriteLine("1. Add Student.");
Console.WriteLine("2. Add marks for student.");
Console.WriteLine("3. Show student's progress card.");
Console.WriteLine("4. Add another school.\n");
Console.WriteLine("Please provide valid input from menu options :");
string optionString = Console.ReadLine();
if (!String.IsNullOrEmpty(optionString))
{
if (Helper.IsOptionValid(optionString))
{
int option;
Int32.TryParse(optionString, out option);
switch (option)
{
case (int)EnumClass.Cases.one:
Console.WriteLine("Enter Student's Roll Number ");
string rollNumberString;
rollNumberString = Console.ReadLine();
if (IsRollNumberValid(rollNumberString))
{
int rollNumber;
Int32.TryParse(rollNumberString, out rollNumber);
Console.WriteLine("Enter Student's name :");
string name = Console.ReadLine();
if (String.IsNullOrEmpty(name))
{
Console.WriteLine("Field can't be left empty.");
}
else if (!Helper.IsString(name))
{
Console.WriteLine("Student's name can have alphabets only.");
}
else if (schoolManagementService.IsStudentExist(id, rollNumber))
{
Console.WriteLine("a student with same credentials already exist.");
}
else
{
schoolManagementService.AddStudent(id, rollNumber, name);
Console.WriteLine("Student added successfully");
}
NavigateMessage();
Option(id, schoolManagementService);
}
break;
case (int)EnumClass.Cases.two:
Console.WriteLine("Enter Student's Roll Number ");
rollNumberString = Console.ReadLine();
if (IsRollNumberValid(rollNumberString))
{
int rollNumber;
Int32.TryParse(rollNumberString, out rollNumber);
if (schoolManagementService.IsStudentExist(id, rollNumber))
{
int[] marksArray = new int[subjectCount];
int count = 0;
foreach (var sub in Enum.GetNames(typeof(EnumClass.Subjects)))
{
Console.WriteLine($"Enter marks scored in {sub} :");
string marksString = Console.ReadLine();
if (String.IsNullOrEmpty(marksString))
{
Console.WriteLine("Marks field can't be left empty.");
break;
}
else
{
if (!Helper.IsNumber(marksString))
{
Console.WriteLine("Marks can be a number only.");
break;
}
else
{
if (!Helper.IsMarksValid(marksString))
{
Console.WriteLine("Invalid marks.");
break;
}
else
{
int marksInt;
Int32.TryParse(marksString, out marksInt);
marksArray[count++] = marksInt;
}
}
}
}
if (count == subjectCount)
{
schoolManagementService.AddMarksToStudent(id, rollNumber, marksArray[0], marksArray[1], marksArray[2], marksArray[3], marksArray[4], marksArray[5]);
Console.WriteLine("Marks added Successfully");
}
}
else
{
Console.WriteLine("Roll number doesn't exist");
}
}
NavigateMessage();
Option(id, schoolManagementService);
break;
case (int)EnumClass.Cases.three:
Console.WriteLine("Enter Student's Roll Number ");
rollNumberString = Console.ReadLine();
if (IsRollNumberValid(rollNumberString))
{
int rollNumber;
Int32.TryParse(rollNumberString, out rollNumber);
if (schoolManagementService.IsStudentExist(id, rollNumber))
{
Student student = schoolManagementService.GetStudent(id, rollNumber);
Console.WriteLine("Student's Roll Number : " + student.RollNumber);
Console.WriteLine("Student's Name : " + student.Name + "\n");
Console.WriteLine("Student's Marks");
//display telugu marks.
Console.WriteLine("Telugu :" + student.ProgressCard.TeluguMarks);
//display telugu marks.
Console.WriteLine("Hindi :" + student.ProgressCard.HindiMarks);
//display english marks.
Console.WriteLine("English :" + student.ProgressCard.EnglishMarks);
//display maths marks.
Console.WriteLine("Maths :" + student.ProgressCard.MathsMarks);
//display Science marks.
Console.WriteLine("Science :" + student.ProgressCard.ScienceMarks);
//display Social marks.
Console.WriteLine("Social :" + student.ProgressCard.SocialMarks + "\n");
//display total marks.
Console.WriteLine("Total Marks :" + student.ProgressCard.TotalMarks);
//display Percentage upto 2 decimal points.
Console.WriteLine("Percentage :" + Math.Round(student.ProgressCard.Percentage, 2) + " %");
}
else
{
Console.WriteLine("Roll number doesn't exist");
}
}
break;
case (int)EnumClass.Cases.four:
NavigateMessage();
Console.WriteLine("Add another school.");
Start(id, schoolManagementService);
break;
default:
Console.WriteLine("Please select a valid option from the menu");
break;
}
}
else
{
Console.WriteLine("Select a valid option.");
}
}
else
{
Console.WriteLine("Field can't be left empty.");
}
NavigateMessage();
Option(id, schoolManagementService);
}
