48 lines
1.8 KiB
C#
48 lines
1.8 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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namespace Zurnal.RemaDateBase.DateDao
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{
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public class GroupInfo
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{
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public int TotalStudents { get; set; }
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public int TotalLessons { get; set; }
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public double AttendancePercentage { get; set; }
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public List<StudentAttendance> StudentAttendances { get; set; }
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public GroupInfo(GroupDao group)
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{
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TotalStudents = group.Users.Count();
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TotalLessons = group.Users.SelectMany(u => u.Group.Users).Count();
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AttendancePercentage = CalculateAttendancePercentage(group);
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StudentAttendances = GetStudentAttendances(group);
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}
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private double CalculateAttendancePercentage(GroupDao group)
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{
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var totalAttendance = group.Users.Sum(u => u.Group.Users.Count(x => x.IsAttendensy));
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var totalClasses = group.Users.Count() * group.Users.FirstOrDefault()?.Group.Users.Count() ?? 0;
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return totalClasses > 0 ? (double)totalAttendance / totalClasses * 100 : 0;
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}
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private List<StudentAttendance> GetStudentAttendances(GroupDao group)
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{
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return group.Users.Select(u => new StudentAttendance
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{
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FIO = u.FIO,
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AttendedLessons = u.Group.Users.Count(x => x.UserGuid == u.UserGuid && x.IsAttendensy),
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MissedLessons = u.Group.Users.Count(x => x.UserGuid == u.UserGuid && !x.IsAttendensy),
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AttendancePercentage = (u.Group.Users.Count(x => x.UserGuid == u.UserGuid && x.IsAttendensy) / (double)TotalLessons) * 100
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}).ToList();
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}
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}
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public class StudentAttendance
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{
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public string FIO { get; set; }
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public int AttendedLessons { get; set; }
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public int MissedLessons { get; set; }
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public double AttendancePercentage { get; set; }
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}
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}
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