public static void SplitStudentsWithLinkedList(string directory, string fileName, int count)
{
var path = Path.Combine(directory, fileName.Replace("{#count}", count.ToString()));
using var sr = new StreamReader(path);
var header = string.Empty;
var firstLine = true;
var line = string.Empty;
var students = new LinkedList <Student>();
var columns = new List <string>();
while ((line = sr.ReadLine()) != null)
{
if (firstLine)
{
columns = TextFormatter.FormatLineFromFileWithoutTabulation(line);
header = line;
firstLine = false;
continue;
}
students.AddFirst(Student.PrepareFromText(columns, TextFormatter.FormatLineFromFileWithoutTabulation(line)));
}
sr.Close();
var badStudentsPath = Path.Combine(directory, BadStudentsFileName
.Replace("{#count}", count.ToString())
.Replace("{#container}", "LinkedList"));
var goodStudentsPath = Path.Combine(directory, GoodStudentsFileName
.Replace("{#count}", count.ToString())
.Replace("{#container}", "LinkedList"));
if (File.Exists(goodStudentsPath))
{
File.Delete(goodStudentsPath);
}
if (File.Exists(badStudentsPath))
{
File.Delete(badStudentsPath);
}
using var gsw = new StreamWriter(goodStudentsPath, true, Encoding.UTF8);
using var bsw = new StreamWriter(badStudentsPath, true, Encoding.UTF8);
var minimumTabulation = students.Last().FirstName.Length > students.Last().LastName.Length
? Math.Ceiling(new decimal(students.Last().FirstName.Length) / 4)
.ToString(CultureInfo.InvariantCulture)
: Math.Ceiling(new decimal(students.Last().LastName.Length) / 4)
.ToString(CultureInfo.InvariantCulture);
gsw.WriteLine(header);
bsw.WriteLine(header);
foreach (var student in students.OrderBy(x => x.FirstName).ThenBy(x => x.LastName))
{
var rowText = TextFormatter.PrepareFileColumn($"{student.FirstName}", int.Parse(minimumTabulation) + 1);
rowText += TextFormatter.PrepareFileColumn($"{student.FirstName}", int.Parse(minimumTabulation) + 1);
rowText += TextFormatter.PrepareFileColumn($"{student.HomeworkGrades[0]}", 2);
rowText += TextFormatter.PrepareFileColumn($"{student.HomeworkGrades[1]}", 2);
rowText += TextFormatter.PrepareFileColumn($"{student.HomeworkGrades[2]}", 2);
rowText += TextFormatter.PrepareFileColumn($"{student.HomeworkGrades[3]}", 2);
rowText += TextFormatter.PrepareFileColumn($"{student.HomeworkGrades[4]}", 2);
rowText += TextFormatter.PrepareFileColumn($"{student.ExamGrade}", 2);
if (student.Average >= 5)
{
gsw.WriteLine(rowText);
}
else
{
bsw.WriteLine(rowText);
}
}
gsw.Close();
bsw.Close();
}