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Refactor click event handler for Delete Orphaned Downloads

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chylex 2025-02-09 09:47:15 +01:00
parent 50d5bdba97
commit e92aeb5a1b
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1 changed files with 37 additions and 39 deletions
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76
app/Desktop/Main/Pages/DownloadsPageModel.cs
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@ -165,48 +165,46 @@ sealed partial class DownloadsPageModel : ObservableObject, IAsyncDisposable {
downloadStatisticsTask.Post(cancellationToken => state.Db.Downloads.GetStatistics(currentDownloadFilter ?? new DownloadItemFilter(), cancellationToken));
}
private const string DeleteOrphanedDownloadsTitle = "Delete Orphaned Downloads";
public async Task OnClickDeleteOrphanedDownloads() {
await ProgressDialog.Show(window, DeleteOrphanedDownloadsTitle, DeleteOrphanedDownloads);
}
private async Task DeleteOrphanedDownloads(ProgressDialog dialog, IProgressCallback callback) {
await callback.UpdateIndeterminate("Searching for orphaned downloads...");
const string Title = "Delete Orphaned Downloads";
HashSet<string> reachableNormalizedUrls = [];
HashSet<string> orphanedNormalizedUrls = [];
await foreach (Download download in state.Db.Downloads.FindAllDownloadableUrls()) {
reachableNormalizedUrls.Add(download.NormalizedUrl);
}
await foreach (Download download in state.Db.Downloads.Get()) {
string normalizedUrl = download.NormalizedUrl;
if (!reachableNormalizedUrls.Contains(normalizedUrl)) {
orphanedNormalizedUrls.Add(normalizedUrl);
await ProgressDialog.Show(window, Title, async (_, callback) => {
await callback.UpdateIndeterminate("Searching for orphaned downloads...");
HashSet<string> reachableNormalizedUrls = [];
HashSet<string> orphanedNormalizedUrls = [];
await foreach (Download download in state.Db.Downloads.FindAllDownloadableUrls()) {
reachableNormalizedUrls.Add(download.NormalizedUrl);
}
}
if (orphanedNormalizedUrls.Count == 0) {
await Dialog.ShowOk(window, DeleteOrphanedDownloadsTitle, "No orphaned downloads found.");
return;
}
if (await Dialog.ShowYesNo(window, DeleteOrphanedDownloadsTitle, orphanedNormalizedUrls.Count + " orphaned download(s) will be removed from this database. This action cannot be undone. Proceed?") != DialogResult.YesNo.Yes) {
return;
}
await callback.UpdateIndeterminate("Deleting orphaned downloads...");
await state.Db.Downloads.Remove(orphanedNormalizedUrls);
RecomputeDownloadStatistics();
if (await Dialog.ShowYesNo(window, DeleteOrphanedDownloadsTitle, "Orphaned downloads deleted. Vacuum database now to reclaim space?") != DialogResult.YesNo.Yes) {
return;
}
await callback.UpdateIndeterminate("Vacuuming database...");
await state.Db.Vacuum();
await foreach (Download download in state.Db.Downloads.Get()) {
string normalizedUrl = download.NormalizedUrl;
if (!reachableNormalizedUrls.Contains(normalizedUrl)) {
orphanedNormalizedUrls.Add(normalizedUrl);
}
}
if (orphanedNormalizedUrls.Count == 0) {
await Dialog.ShowOk(window, Title, "No orphaned downloads found.");
return;
}
if (await Dialog.ShowYesNo(window, Title, orphanedNormalizedUrls.Count + " orphaned download(s) will be removed from this database. This action cannot be undone. Proceed?") != DialogResult.YesNo.Yes) {
return;
}
await callback.UpdateIndeterminate("Deleting orphaned downloads...");
await state.Db.Downloads.Remove(orphanedNormalizedUrls);
RecomputeDownloadStatistics();
if (await Dialog.ShowYesNo(window, Title, "Orphaned downloads deleted. Vacuum database now to reclaim space?") != DialogResult.YesNo.Yes) {
return;
}
await callback.UpdateIndeterminate("Vacuuming database...");
await state.Db.Vacuum();
});
}
private void UpdateStatistics(DownloadStatusStatistics statusStatistics) {