// This method removes the class ID of the class a user attended,
// from the Bruger.csv file.
public void RemoveClassIDFromUserFile(FitnessClass classAttended)
{
List <string> lines = new List <string>();
string line;
User currentUser = FindUserFromLoginStatus();
var path = Directory.GetCurrentDirectory() + @"\Bruger.csv";
using (TextFieldParser csvParser = new TextFieldParser(path))
{
csvParser.SetDelimiters(new string[] { "," });
csvParser.HasFieldsEnclosedInQuotes = false;
while (!csvParser.EndOfData)
{
int i = 0;
string[] fields = csvParser.ReadFields();
string id = fields[0];
string firstname = fields[1];
string lastname = fields[2];
string password = fields[3];
Int32.TryParse(id, out int memberId);
int[] enrolledClasses = new int[fields.Length - 4];
string enrolledClassesString = "";
for (i = 4; i < fields.Length; i++)
{
string classID = fields[i];
Int32.TryParse(classID, out int enrolledClass);
if (currentUser.MemberId != memberId)
{
enrolledClasses[i - 4] = enrolledClass;
enrolledClassesString += "," + enrolledClass;
}
else if (currentUser.MemberId == memberId && classAttended.ClassID != enrolledClass)
{
enrolledClasses[i - 4] = enrolledClass;
enrolledClassesString += "," + enrolledClass;
}
else if (currentUser.MemberId == memberId && classAttended.ClassID == enrolledClass)
{
enrolledClassesString += "";
}
}
line = string.Join("", memberId, ',', firstname, ',', lastname, ',', password, enrolledClassesString);
lines.Add(line);
}
}
using (StreamWriter SW = new StreamWriter("Bruger.csv"))
{
foreach (string l in lines)
{
SW.WriteLine(l);
}
}
}
// This method finds and returns the class with the desired ID.
public FitnessClass FindClassFromID(int classID)
{
try
{
FitnessClass found = AllTeams.Find(c => c.ClassID == classID);
return(found);
}
catch
{
throw new ArgumentException("Class could not be found from classID");
}
}
// This method turns a string list into at FitnessClass list.
public List <FitnessClass> FindClassFromStringList(List <string> stringList)
{
try
{
List <FitnessClass> fitnessClassList = new List <FitnessClass>();
foreach (string s in stringList)
{
FitnessClass found = AllTeams.Find(t => t.Title == s);
fitnessClassList.Add(found);
}
return(fitnessClassList);
}
catch
{
throw new ArgumentException("Class could not be found from string list");
}
}
// This method removes the user ID of the user who attended a class,
// from the classes.csv file.
public void RemoveUserIDFromClassFile(FitnessClass classAttended)
{
List <string> lines = new List <string>();
string line;
User currentUser = FindUserFromLoginStatus();
var path = Directory.GetCurrentDirectory() + @"\classes.csv";
using (TextFieldParser csvParser = new TextFieldParser(path))
{
int i = 0;
csvParser.SetDelimiters(new string[] { ";" });
csvParser.HasFieldsEnclosedInQuotes = false;
while (!csvParser.EndOfData)
{
string[] fields = csvParser.ReadFields();
string classIDString = fields[0];
Int32.TryParse(classIDString, out int classID);
string teamtitle = fields[1];
string participantString = fields[2];
Int32.TryParse(participantString, out int numberofParticipants);
string time = fields[3];
string date = fields[4];
string roomString = fields[5];
Int32.TryParse(roomString, out int room);
string instructor = fields[6];
int[] participantsEnrolled = new int[fields.Length - 7];
string participantsClassesString = "";
for (i = 7; i < fields.Length; i++)
{
string participant = fields[i];
Int32.TryParse(participant, out int particpantEnrolled);
if (currentUser.MemberId != particpantEnrolled)
{
participantsEnrolled[i - 7] = particpantEnrolled;
participantsClassesString += ";" + particpantEnrolled;
}
else if (currentUser.MemberId == particpantEnrolled && classAttended.ClassID != classID)
{
participantsEnrolled[i - 7] = particpantEnrolled;
participantsClassesString += ";" + particpantEnrolled;
}
else if (currentUser.MemberId == particpantEnrolled && classAttended.ClassID == classID)
{
participantsClassesString += "";
}
}
line = string.Join("", classID, ';', teamtitle, ';', numberofParticipants, ';', time, ';', date, ';', room, ';', instructor, participantsClassesString);
lines.Add(line);
}
}
using (StreamWriter SW = new StreamWriter("classes.csv"))
{
foreach (string l in lines)
{
SW.WriteLine(l);
}
}
}