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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 System.ComponentModel;
namespace ColorPalette
{
public sealed partial class PaginatedResource : AbstractResource, INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
public string Path { get; set; }
private int _Page = 1;
public int Page
{
get => _Page;
set
{
if (_Page == value || value < 1)
return;
_Page = value;
PropertyChanged?.Invoke(this, new(nameof(Page)));
RefreshCurrentPage();
}
}
public int Pages { get; private set; } = 0;
public void RefreshCurrentPage()
{
if (ResourceApi == null) {
ErrorMsg("Service not ready");
return;
}
try {
var response = Task.Run(() => ResourceApi.RefreshAsync(Path, Page)).Result;
Pages = response.TotalPages;
_Page = response.CurrentPage;
RefreshData(response.Data);
PropertyChanged?.Invoke(this, new(nameof(Pages)));
PropertyChanged?.Invoke(this, new(nameof(Page)));
PropertyChanged?.Invoke(this, new(nameof(Data)));
} catch (Exception e) {
HandleRequestException(e, apiException =>
{
if (Page != 1) {
// A failed refresh. If we weren't on page 1, try that.
// Last resource on currentPage might have been deleted, causing a failure
Page = 1;
} else {
// Refresh failed and we're already on page 1 => clear data
ErrorMsg($"Refresh failed: {apiException.Message}");
Pages = 0;
PropertyChanged?.Invoke(this, new(nameof(Pages)));
if (Resources.Any()) {
Resources.Clear();
PropertyChanged?.Invoke(this, new(nameof(Data)));
}
}
});
}
}
public void Add(ResourceData resource)
{
if (ResourceApi == null) {
ErrorMsg("Service not ready");
return;
}
try {
_ = Task.Run(() => ResourceApi
.AddAsync(Path, resource))
.Result;
RefreshCurrentPage();
} catch (Exception e) {
HandleRequestException(e, apiException =>
{
ErrorMsg($"Add failed: {apiException.Message}");
});
}
}
public void Update(int resourceId, ResourceData resource)
{
if (ResourceApi == null) {
ErrorMsg("Service not ready");
return;
}
try {
_ = Task.Run(() => ResourceApi
.UpdateAsync(Path, resourceId, resource))
.Result;
RefreshCurrentPage();
} catch (Exception e) {
HandleRequestException(e, apiException =>
{
ErrorMsg($"Update failed: {apiException.Message}");
});
}
}
public void Remove(int resourceId)
{
if (ResourceApi == null) {
ErrorMsg("Service not ready");
return;
}
try {
_ = Task.Run(() => ResourceApi
.RemoveAsync(Path, resourceId))
.Result;
RefreshCurrentPage();
} catch (Exception e) {
HandleRequestException(e, apiException =>
{
ErrorMsg($"Remove failed: {apiException.Message}");
});
}
}
}
}
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