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/***************************************************************************************************
Copyright (C) 2025 The Qt Company Ltd.
SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
***************************************************************************************************/
using Qt.DotNet;
using System.Collections;
using System.ComponentModel;
using UserViewLib;
namespace UserViewQml
{
public class UserListModel : ListModel, IUserList, INotifyPropertyChanged
{
public enum UserItemRoles
{
FullName = Roles.UserRole,
FirstName, LastName, Email, Thumbnail, Picture, BirthDate, Age
}
private readonly object CriticalSection = new();
public event PropertyChangedEventHandler PropertyChanged;
private UserList Users { get; set; } = new();
public int Count { get; private set; } = 0;
public void Add(User user, int index = -1)
{
if (user == null)
return;
if (index < 0 || index > Count)
index = Count;
BeginInsertRows(ModelIndex.Empty, index, index);
Users.Add(user, index);
Count = Users.Count;
EndInsertRows();
PropertyChanged?.Invoke(this, new(nameof(Count)));
}
public void AddRange(IList<User> users, int index = -1)
{
if (users is null or { Count: 0 })
return;
if (index < 0 || index > Count)
index = Count;
BeginInsertRows(ModelIndex.Empty, index, index + users.Count - 1);
foreach (var user in users)
Users.Add(user, index++);
Count = Users.Count;
EndInsertRows();
PropertyChanged?.Invoke(this, new(nameof(Count)));
}
public void RemoveAt(int index)
{
if (index < 0 || index >= Count)
return;
BeginRemoveRows(ModelIndex.Empty, index, index);
Users.RemoveAt(index);
Count = Users.Count;
EndRemoveRows();
PropertyChanged?.Invoke(this, new(nameof(Count)));
}
public User RemoveRandom(Random random)
{
User oldUser = null;
if (!Users.Any())
return null;
int index = random.Next(Users.Count);
if (index < 0 || index >= Count)
return null;
oldUser = Users.ElementAt(index);
BeginRemoveRows(ModelIndex.Empty, index, index);
Users.RemoveAt(index);
Count = Users.Count;
EndRemoveRows();
PropertyChanged?.Invoke(this, new(nameof(Count)));
return oldUser;
}
public int BinarySearch(User user, IComparer<User> comparer)
{
return Users.BinarySearch(user, comparer);
}
public IEnumerator<User> GetEnumerator()
{
return Users.GetEnumerator();
}
IEnumerator IEnumerable.GetEnumerator()
{
return Users.GetEnumerator();
}
public Dictionary<int, string> RoleMap { get; } = new()
{
{ (int)UserItemRoles.FullName, "fullName" },
{ (int)UserItemRoles.FirstName, "firstName" },
{ (int)UserItemRoles.LastName, "lastName" },
{ (int)UserItemRoles.Email, "email" },
{ (int)UserItemRoles.Thumbnail, "thumbnail" },
{ (int)UserItemRoles.Picture, "picture" },
{ (int)UserItemRoles.BirthDate, "birthDate" },
{ (int)UserItemRoles.Age, "age" }
};
public override Dictionary<int, string> RoleNames()
{
return RoleMap;
}
public override object Data(ModelIndex index, int role)
{
var users = Users.ToList();
if (index.Row >= users.Count)
return null;
var user = users.ElementAt(index.Row);
return role switch
{
(int)Roles.DisplayRole or
(int)UserItemRoles.FullName => user.Name.Full,
(int)UserItemRoles.FirstName => user.Name.First,
(int)UserItemRoles.LastName => user.Name.Last,
(int)UserItemRoles.Email => user.Email,
(int)UserItemRoles.Thumbnail => user.Picture.Thumbnail,
(int)UserItemRoles.Picture => user.Picture.Large,
(int)UserItemRoles.BirthDate => user.Birth.Date,
(int)UserItemRoles.Age => user.Age,
_ => null
};
}
public override int RowCount(ModelIndex parent)
{
return Count;
}
}
}
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