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18/6 #32

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32 changes: 23 additions & 9 deletions GradeBook/GradeBooks/BaseGradeBook.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -9,15 +9,19 @@

namespace GradeBook.GradeBooks
{
public class BaseGradeBook
public abstract class BaseGradeBook
{
public GradeBookType Enum { get; set; }
public GradeBookType Type { get; set; }
public string Name { get; set; }
public List<Student> Students { get; set; }
public bool IsWeighted { get; set; }

public BaseGradeBook(string name)
public BaseGradeBook(string name, bool isWeighted)
{
Name = name;
Students = new List<Student>();
IsWeighted = isWeighted;
}

public void AddStudent(Student student)
Expand Down Expand Up @@ -106,20 +110,30 @@ public void Save()

public virtual double GetGPA(char letterGrade, StudentType studentType)
{
double gpa = 0;
switch (letterGrade)
{
case 'A':
return 4;
gpa = 4;
break;
case 'B':
return 3;
gpa = 3;
break;
case 'C':
return 2;
gpa = 2;
break;
case 'D':
return 1;
gpa = 1;
break;
case 'F':
return 0;
gpa = 0;
break;
default:
throw new ArgumentException("Invalid letter date");
}
return 0;
if (IsWeighted && (studentType == StudentType.Honors || studentType == StudentType.DualEnrolled))
gpa += 1;
return gpa;
}

public virtual void CalculateStatistics()
Expand Down Expand Up @@ -247,7 +261,7 @@ from type in assembly.GetTypes()
if (string.IsNullOrEmpty(gradeBookType))
gradeBookType = "Standard";
else
gradeBookType = Enum.GetName(gradebookEnum, int.Parse(gradeBookType));
gradeBookType = Enums.GradeBookType.GetName(gradebookEnum, int.Parse(gradeBookType));
}

// Get GradeBook from the GradeBook.GradeBooks namespace
Expand Down
61 changes: 61 additions & 0 deletions GradeBook/GradeBooks/GradeBooks.cs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,61 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace GradeBook.GradeBooks
{
public class StandardGradeBook : BaseGradeBook
{
public StandardGradeBook(string name, bool isWeighted) : base(name, isWeighted)
{
Type = Enums.GradeBookType.Standard;
}
}
public class RankedGradeBook : BaseGradeBook
{
public RankedGradeBook(string name, bool isWeighted) : base(name, isWeighted)
{
Type = Enums.GradeBookType.Ranked;
}

public override char GetLetterGrade(double averageGrade)
{
if (Students.Count < 5)
{
throw new InvalidOperationException("Ranked grading requires at least 5 students.");
}
var sortedGrades = Students.Select(s => s.AverageGrade).OrderByDescending(g => g).ToList();
int threshold = (int)Math.Ceiling(Students.Count * 0.2);
if (averageGrade >= sortedGrades[threshold - 1])
return 'A';
if (averageGrade >= sortedGrades[threshold *2 - 1])
return 'B';
if (averageGrade >= sortedGrades[threshold *3 - 1])
return 'C';
if (averageGrade >= sortedGrades[threshold * 4 - 1])
return 'D';
return 'F';
}
public override void CalculateStatistics()
{
if (Students.Count < 5)
{
Console.WriteLine("Ranked grading requires at least 5 students.");
return;
}
else base.CalculateStatistics();
}
public override void CalculateStudentStatistics(string name)
{
if (Students.Count < 5)
{
Console.WriteLine("Ranked grading requires at least 5 students.");
return;
}
else base.CalculateStudentStatistics(name);
}

}
}
30 changes: 24 additions & 6 deletions GradeBook/UserInterfaces/StartingUserInterface.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -34,15 +34,31 @@ public static void CommandRoute(string command)
public static void CreateCommand(string command)
{
var parts = command.Split(' ');
if (parts.Length != 2)
if (parts.Length != 4)
{
Console.WriteLine("Command not valid, Create requires a name.");
Console.WriteLine("Command not valid, Create requires a name, type of gradebook, if it's weighted (true / false).");
return;
}
var name = parts[1];
BaseGradeBook gradeBook = new BaseGradeBook(name);
Console.WriteLine("Created gradebook {0}.", name);
GradeBookUserInterface.CommandLoop(gradeBook);
string type = parts[2].ToLower();
bool isWeighted = bool.Parse(parts[3].ToLower());
if (type == "standard")
{
BaseGradeBook gradeBook = new StandardGradeBook(name, isWeighted);
Console.WriteLine($"Created {type} gradebook named {name} (weighted: {isWeighted})");
GradeBookUserInterface.CommandLoop(gradeBook);
}
else if (type == "ranked")
{
BaseGradeBook gradeBook = new RankedGradeBook(name, isWeighted);
Console.WriteLine($"Created {type} gradebook named {name} (weighted: {isWeighted})");
GradeBookUserInterface.CommandLoop(gradeBook);
}
else
{
Console.WriteLine($"{type} is not a supported type of gradebook, please try again");
return;
}
}

public static void LoadCommand(string command)
Expand All @@ -67,7 +83,9 @@ public static void HelpCommand()
Console.WriteLine();
Console.WriteLine("GradeBook accepts the following commands:");
Console.WriteLine();
Console.WriteLine("Create 'Name' - Creates a new gradebook where 'Name' is the name of the gradebook.");
Console.WriteLine("Create 'Name' 'Type' 'Weighted' - Creates a new gradebook where 'Name' is the name of the gradebook, " +
"'Type' is what type of grading it should use, " +
"and 'Weighted' is whether or not grades should be weighted (true or false).");
Console.WriteLine();
Console.WriteLine("Load 'Name' - Loads the gradebook with the provided 'Name'.");
Console.WriteLine();
Expand Down