Burak Kaan Köse
122 lines
3.5 KiB
C#
122 lines
3.5 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using CommunityToolkit.Mvvm.ComponentModel;
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using Wino.Core.Domain.Interfaces;
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namespace Wino.Mail.ViewModels.Data;
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/// <summary>
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/// Thread mail item (multiple IMailItem) view model representation.
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/// </summary>
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public partial class ThreadMailItemViewModel : ObservableRecipient, IDisposable, IMailListItem
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{
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private readonly string _threadId;
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private readonly List<MailItemViewModel> _threadEmails = [];
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private bool _disposed;
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[ObservableProperty]
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[NotifyPropertyChangedRecipients]
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public partial bool IsThreadExpanded { get; set; }
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[ObservableProperty]
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public partial bool IsSelected { get; set; }
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/// <summary>
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/// Gets the number of emails in this thread
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/// </summary>
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public int EmailCount => _threadEmails.Count;
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/// <summary>
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/// Gets the latest email's subject for display
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/// </summary>
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public string Subject => _threadEmails
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.OrderByDescending(e => e.MailCopy?.CreationDate)
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.FirstOrDefault()?.MailCopy?.Subject;
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/// <summary>
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/// Gets the latest email's sender name for display
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/// </summary>
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public string FromName => _threadEmails
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.OrderByDescending(e => e.MailCopy?.CreationDate)
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.FirstOrDefault()?.MailCopy?.SenderContact.Name;
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/// <summary>
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/// Gets the latest email's creation date for sorting
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/// </summary>
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public DateTime CreationDate => _threadEmails
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.OrderByDescending(e => e.MailCopy?.CreationDate)
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.FirstOrDefault()?.MailCopy?.CreationDate ?? DateTime.MinValue;
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/// <summary>
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/// Gets all emails in this thread (read-only)
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/// </summary>
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public IReadOnlyList<MailItemViewModel> ThreadEmails => _threadEmails.AsReadOnly();
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public MailItemViewModel LatestMailViewModel => _threadEmails.OrderByDescending(e => e.MailCopy?.CreationDate).FirstOrDefault()!;
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public ThreadMailItemViewModel(string threadId)
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{
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_threadId = threadId;
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}
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protected virtual void Dispose(bool disposing)
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{
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if (_disposed)
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return;
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if (disposing)
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{
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_threadEmails.Clear();
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}
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_disposed = true;
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}
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public void Dispose()
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{
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Dispose(true);
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GC.SuppressFinalize(this);
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}
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public void NotifyPropertyChanges()
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{
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OnPropertyChanged(nameof(Subject));
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OnPropertyChanged(nameof(FromName));
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OnPropertyChanged(nameof(CreationDate));
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OnPropertyChanged(nameof(LatestMailViewModel));
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}
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/// <summary>
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/// Adds an email to this thread
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/// </summary>
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public void AddEmail(MailItemViewModel email)
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{
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if (email.MailCopy.ThreadId != _threadId)
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throw new ArgumentException($"Email ThreadId '{email.MailCopy.ThreadId}' does not match expander ThreadId '{_threadId}'");
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_threadEmails.Add(email);
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NotifyPropertyChanges();
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}
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/// <summary>
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/// Removes an email from this thread
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/// </summary>
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public void RemoveEmail(MailItemViewModel email)
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{
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if (_threadEmails.Remove(email))
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{
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NotifyPropertyChanges();
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}
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}
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/// <summary>
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/// Checks if this thread contains an email with the specified unique ID
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/// </summary>
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public bool HasUniqueId(Guid uniqueId) => _threadEmails.Any(email => email.MailCopy.UniqueId == uniqueId);
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public IEnumerable<Guid> GetContainingIds() => ThreadEmails.Select(a => a.MailCopy.UniqueId);
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}
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