public string MakeStudentReport(string firstName, string lastName,
Func <IEnumerable <Attendance>, string> serializer = null)
{
var students = _studentService.Find(s =>
s.FirstName == firstName && s.LastName == lastName).ToList();
if (students.Count == 0)
{
_logger?.LogWarning($"Entered student {firstName} {lastName} doesn't exist");
throw new ValidationException($"Entered student {firstName} {lastName} doesn't exist");
}
if (serializer == null)
{
var jsonSerializer = new JsonAttendanceSerializer();
serializer = jsonSerializer.Serialize;
}
var attendance = from student in students
from homework in student.StudentHomework
select new Attendance()
{
LectureName = _lectureService.GetAsync(homework.LectureId).Result.Name,
ProfessorName = $"{_professorService.GetAsync(_lectureService.GetAsync(homework.LectureId).Result.ProfessorId).Result.FirstName} " +
$"{_professorService.GetAsync(_lectureService.GetAsync(homework.LectureId).Result.ProfessorId).Result.LastName}",
StudentName = $"{student.FirstName} {student.LastName}",
StudentPresence = homework.StudentPresence,
HomeworkPresence = homework.HomeworkPresence,
Mark = homework.Mark,
Date = homework.Date
};
return(serializer(attendance));
}
public string MakeLectureReport(string lectureName, Func <IEnumerable <Attendance>, string> serializer = null)
{
var lectures = _lectureService.Find(l => l.Name == lectureName).ToList();
if (lectures.Count == 0)
{
_logger?.LogWarning($"Entered lecture {lectureName} doesn't exist");
throw new ValidationException($"Entered lecture {lectureName} doesn't exist");
}
if (serializer == null)
{
var jsonSerializer = new JsonAttendanceSerializer();
serializer = jsonSerializer.Serialize;
}
var attendance = from lecture in lectures
from homework in lecture.LectureHomework
select new Attendance()
{
LectureName = lecture.Name,
ProfessorName = $"{_professorService.GetAsync(lecture.ProfessorId).Result.FirstName} " +
$"{_professorService.GetAsync(lecture.ProfessorId).Result.LastName}",
StudentName = $"{_studentService.GetAsync(homework.StudentId).Result.FirstName} " +
$"{_studentService.GetAsync(homework.StudentId).Result.LastName}",
StudentPresence = homework.StudentPresence,
HomeworkPresence = homework.HomeworkPresence,
Mark = homework.Mark,
Date = homework.Date
};
return(serializer(attendance));
}
public IActionResult GetLectureReport(FileType type, string lectureName)
{
if (string.IsNullOrEmpty(lectureName))
{
return(BadRequest());
}
ISerializer serializer;
switch (type)
{
case FileType.JSON:
{
serializer = new JsonAttendanceSerializer();
break;
}
case FileType.XML:
{
serializer = new XmlAttendanceSerializer();
break;
}
default:
return(BadRequest());
}
var content = _reportService.MakeLectureReport(lectureName, serializer.Serialize);
return(File(Encoding.UTF8.GetBytes(content),
System.Net.Mime.MediaTypeNames.Application.Json,
$"{DateTime.Now.ToShortDateString()} - {lectureName} Attendance {type}.txt"));
}
private static string MakeJsonReportData()
{
var attendance = new List <Attendance>()
{
new Attendance()
{
LectureName = "Math",
ProfessorName = "Kirill Kononov",
StudentName = "Kirill Kononov",
HomeworkPresence = true,
StudentPresence = true,
Mark = 4,
Date = DateTime.Now
}
};
var serializer = new JsonAttendanceSerializer();
return(serializer.Serialize(attendance));
}