// ProcessSwipe handles the workflow for a student swiping their id
// card at the Learning Factory.
public String ProcessSwipe(String studentId)
{
String message = "";
StudentDataService sds = new StudentDataService();
AttendanceDataService ads = new AttendanceDataService();
Student student = sds.GetStudent(studentId);
if (student == null) // new student swipes id card
{
String house_assignment = HouseAssignment();
Console.WriteLine(house_assignment);
if (sds.CreateStudent(studentId, house_assignment) && ads.CreateAttendance(studentId))
{
message = "Welcome to the Learning Factory! " +
"Your house assignment is " + house_assignment +
". Please see our FAQ page if you have questions about this house " +
"assignment or the point tracking process.";
}
else
{
message = "An error occurred when processing your card. Please try again or " +
"find a staff member if error continues to occur.";
}
}
else // existing student swipes id card
{
Attendance attendance = ads.GetLatestAttendance(studentId);
if ((attendance.check_in != null) && (attendance.check_out != null))
{
if (ads.CreateAttendance(studentId))
{
message = "Hi " + student.first_name + ", you have signed " +
"into the Learning Factory. You currently have "
+ student.total_points + " points. Have fun building!";
}
else
{
message = "An error occurred when processing your card. Please try again or " +
"find a staff member if error continues to occur.";
}
}
else
{
if (ads.UpdateSession(attendance.session_id.ToString()))
{
message = "You have been signed out. You received " +
ads.GetLatestAttendance(studentId).session_points + " points for this visit, " +
" and you have " + sds.GetStudent(studentId).total_points + " points " +
"total. Thanks for coming " + student.first_name + "!";
}
else
{
message = "An error occurred when processing your card. Please try again or " +
"find a staff member if error continues to occur.";
}
}
}
return(message);
}