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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,200 @@ | ||
| using LangLang.Core.Model; | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.ComponentModel; | ||
| using System.Data; | ||
| using System.Linq; | ||
| using System.Reflection; | ||
| using System.Text; | ||
| using System.Text.RegularExpressions; | ||
| using System.Threading.Tasks; | ||
| using System.Xml.Linq; | ||
|
|
||
| namespace LangLang.DTO | ||
| { | ||
| public class ExamSlotDTO : INotifyPropertyChanged, IDataErrorInfo | ||
| { | ||
| public ExamSlotDTO() { } | ||
| public int Id { get; set; } | ||
|
|
||
| private int _courseId; | ||
| private int _maxStudents; | ||
| private DateTime _examDate; | ||
| private string _time; | ||
| private int _numberOfStudents; | ||
| private DateTime _examDateTime; | ||
|
|
||
| public int CourseId | ||
| { | ||
| get { return _courseId; } | ||
| set | ||
| { | ||
| _courseId = value; | ||
| } | ||
| } | ||
|
|
||
| public string MaxStudents | ||
| { | ||
| get { return _maxStudents.ToString(); ; } | ||
| set | ||
| { | ||
| if (int.TryParse(value, out int result) && result >= 0) | ||
| { | ||
| _maxStudents = result; | ||
| } | ||
| else | ||
| { | ||
| throw new ArgumentException("Max number of students must be a non-negative integer."); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public DateTime ExamDate | ||
| { | ||
| get { return _examDate; } | ||
| set | ||
| { | ||
| _examDate = value; | ||
| } | ||
| } | ||
|
|
||
| public int NumberOfStudents | ||
| { | ||
| get { return _numberOfStudents; } | ||
| set | ||
| { | ||
| _numberOfStudents = value; | ||
| } | ||
| } | ||
|
|
||
| public string Time | ||
| { | ||
| get { return _time; } | ||
| set | ||
| { | ||
| _time = value; | ||
| } | ||
| } | ||
|
|
||
| public DateTime ExamDateTime | ||
| { | ||
| get { return _examDateTime; } | ||
| set | ||
| { | ||
| _examDateTime = value; | ||
| } | ||
| } | ||
|
|
||
| private readonly Regex _TimeRegex = new("^(?:[01]\\d|2[0-3]):(?:[0-5]\\d)$"); | ||
|
|
||
|
|
||
| public string this[string columnName] | ||
| { | ||
| get | ||
| { | ||
|
|
||
| if (columnName == "MaxStudents") | ||
| { | ||
|
|
||
| if (string.IsNullOrEmpty(MaxStudents)) return "Max number of students is required"; | ||
| if (!int.TryParse(MaxStudents, out int maxStudents) || maxStudents <= 0) return "Must input a positive integer for max number of students."; | ||
| else return ""; | ||
| } | ||
|
|
||
| if (columnName == "ExamDate") | ||
| { | ||
| if (_examDate <= DateTime.Now) return "Please enter a future date."; | ||
| if (_examDate == default) return "Exam date is required"; | ||
| else return ""; | ||
| } | ||
|
|
||
| if (columnName == "ExamTime") | ||
| { | ||
| if (string.IsNullOrEmpty(Time)) return "Time is required"; | ||
| if (!_TimeRegex.Match(Time).Success) return "Time must be of format hh:mm ."; | ||
| else return ""; | ||
| } | ||
| return ""; | ||
| } | ||
| } | ||
|
|
||
| private readonly string[] _validatedProperties = { "MaxStudents", "ExamDate", "ExamTime" }; | ||
|
|
||
| // checks if all properties are valid | ||
| public bool IsValid | ||
| { | ||
| get | ||
| { | ||
| foreach (var property in _validatedProperties) | ||
| { | ||
| if (this[property] != null) | ||
| return true; | ||
| } | ||
|
|
||
| return true; | ||
| } | ||
| } | ||
|
|
||
|
|
||
|
|
||
| public ExamSlotDTO(ExamSlot examSlot) | ||
| { | ||
| this.Id = examSlot.Id; | ||
| this.MaxStudents = examSlot.MaxStudents.ToString(); | ||
| this.NumberOfStudents = examSlot.NumberOfStudents; | ||
| this.CourseId = examSlot.CourseId; | ||
| this.ExamDate = examSlot.ExamDateTime.Date; | ||
| this.Time = examSlot.ExamDateTime.ToString("HH:mm"); | ||
| this.ExamDateTime = examSlot.ExamDateTime; | ||
| } | ||
|
|
||
| private DateTime ToDateTime(DateTime date, string time) | ||
| { | ||
|
|
||
| string[] timeComponents = time.Split(':'); | ||
|
|
||
| if (timeComponents.Length == 2) | ||
| { | ||
| // Parse hour component | ||
| if (int.TryParse(timeComponents[0], out int hours)) | ||
| { | ||
| // Parse minute component | ||
| if (int.TryParse(timeComponents[1], out int minutes)) | ||
| { | ||
| // Create a new DateTime object with the combined date and time components | ||
| DateTime combinedDateTime = new DateTime(date.Year, date.Month, date.Day, hours, minutes, 0); | ||
|
|
||
| } | ||
| else | ||
| { | ||
| Console.WriteLine("Invalid minute component."); | ||
| } | ||
| } | ||
| else | ||
| { | ||
| Console.WriteLine("Invalid hour component."); | ||
| } | ||
| } | ||
| else | ||
| { | ||
| Console.WriteLine("Invalid time format."); | ||
| } | ||
| return DateTime.Now; | ||
| } | ||
|
|
||
| public ExamSlot ToExamSlot() | ||
| { | ||
| return new ExamSlot(Id, _courseId, _maxStudents, ToDateTime(_examDate,_time) , 0); | ||
| } | ||
|
|
||
| public string Error => throw new NotImplementedException(); | ||
|
|
||
| public event PropertyChangedEventHandler? PropertyChanged; | ||
|
|
||
| protected virtual void OnPropertyChanged(string name) | ||
| { | ||
| PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(name)); | ||
| } | ||
|
|
||
| } | ||
| } |
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