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Pull channels lazily in the GUI

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Closes #1005
This commit is contained in:
Tyrrrz 2023-08-22 00:03:29 +03:00
parent 758fb26dad
commit d1a8f466f6
2 changed files with 76 additions and 29 deletions
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92
DiscordChatExporter.Gui/ViewModels/Components/DashboardViewModel.cs
View file

@ -38,17 +38,13 @@ public class DashboardViewModel : PropertyChangedBase
public string? Token { get; set; }
private IReadOnlyDictionary<Guild, IReadOnlyList<Channel>>? ChannelsByGuild { get; set; }
public IReadOnlyList<Guild>? AvailableGuilds => ChannelsByGuild?.Keys.ToArray();
public IReadOnlyList<Guild>? AvailableGuilds { get; private set; }
public Guild? SelectedGuild { get; set; }
public bool IsDirectMessageGuildSelected => SelectedGuild?.Id == Guild.DirectMessages.Id;
public IReadOnlyList<Channel>? AvailableChannels => SelectedGuild is not null
? ChannelsByGuild?[SelectedGuild]
: null;
public IReadOnlyList<Channel>? AvailableChannels { get; private set; }
public IReadOnlyList<Channel>? SelectedChannels { get; set; }
@ -82,7 +78,7 @@ public class DashboardViewModel : PropertyChangedBase
Token = _settingsService.LastToken;
}
public async void ShowSettings()
public async Task ShowSettingsAsync()
{
var dialog = _viewModelFactory.CreateSettingsViewModel();
await _dialogManager.ShowDialogAsync(dialog);
@ -90,9 +86,9 @@ public class DashboardViewModel : PropertyChangedBase
public void ShowHelp() => ProcessEx.StartShellExecute(App.DocumentationUrl);
public bool CanPopulate => !IsBusy && !string.IsNullOrWhiteSpace(Token);
public bool CanPullGuildsAsync => !IsBusy && !string.IsNullOrWhiteSpace(Token);
public async void Populate()
public async Task PullGuildsAsync()
{
IsBusy = true;
var progress = _progressMuxer.CreateInput();
@ -103,21 +99,21 @@ public class DashboardViewModel : PropertyChangedBase
if (string.IsNullOrWhiteSpace(token))
return;
AvailableGuilds = null;
SelectedGuild = null;
AvailableChannels = null;
SelectedChannels = null;
_discord = new DiscordClient(token);
_settingsService.LastToken = token;
var discord = new DiscordClient(token);
var guilds = await _discord.GetUserGuildsAsync();
var channelsByGuild = new Dictionary<Guild, IReadOnlyList<Channel>>();
await foreach (var guild in discord.GetUserGuildsAsync())
{
channelsByGuild[guild] = (await discord.GetGuildChannelsAsync(guild.Id))
.Where(c => c.Kind != ChannelKind.GuildCategory)
.ToArray();
}
AvailableGuilds = guilds;
SelectedGuild = guilds.FirstOrDefault();
_discord = discord;
ChannelsByGuild = channelsByGuild;
SelectedGuild = channelsByGuild.Keys.FirstOrDefault();
// Pull channels for the selected guild
await PullChannelsAsync();
}
catch (DiscordChatExporterException ex) when (!ex.IsFatal)
{
@ -128,7 +124,7 @@ public class DashboardViewModel : PropertyChangedBase
catch (Exception ex)
{
var dialog = _viewModelFactory.CreateMessageBoxViewModel(
"Error pulling guilds and channels",
"Error pulling guilds",
ex.ToString()
);
@ -141,13 +137,63 @@ public class DashboardViewModel : PropertyChangedBase
}
}
public bool CanExport =>
public bool CanPullChannelsAsync => !IsBusy && _discord is not null && SelectedGuild is not null;
public async Task PullChannelsAsync()
{
IsBusy = true;
var progress = _progressMuxer.CreateInput();
try
{
if (_discord is null || SelectedGuild is null)
return;
AvailableChannels = null;
SelectedChannels = null;
var channels = new List<Channel>();
await foreach (var channel in _discord.GetGuildChannelsAsync(SelectedGuild.Id))
{
if (channel.Kind == ChannelKind.GuildCategory)
continue;
channels.Add(channel);
}
AvailableChannels = channels;
SelectedChannels = null;
}
catch (DiscordChatExporterException ex) when (!ex.IsFatal)
{
_eventAggregator.Publish(
new NotificationMessage(ex.Message.TrimEnd('.'))
);
}
catch (Exception ex)
{
var dialog = _viewModelFactory.CreateMessageBoxViewModel(
"Error pulling channels",
ex.ToString()
);
await _dialogManager.ShowDialogAsync(dialog);
}
finally
{
progress.ReportCompletion();
IsBusy = false;
}
}
public bool CanExportAsync =>
!IsBusy &&
_discord is not null &&
SelectedGuild is not null &&
SelectedChannels?.Any() is true;
public async void Export()
public async Task ExportAsync()
{
IsBusy = true;

13
DiscordChatExporter.Gui/Views/Components/DashboardView.xaml
View file

@ -99,12 +99,12 @@
</controls:RevealablePasswordBox.Style>
</controls:RevealablePasswordBox>
<!-- Pull data button -->
<!-- Pull guilds button -->
<Button
Grid.Column="2"
Margin="0,6,6,6"
Padding="4"
Command="{s:Action Populate}"
Command="{s:Action PullGuildsAsync}"
IsDefault="True"
Style="{DynamicResource MaterialDesignFlatButton}"
ToolTip="Pull available guilds and channels (Enter)">
@ -121,7 +121,7 @@
Grid.Column="1"
Margin="6"
Padding="4"
Command="{s:Action ShowSettings}"
Command="{s:Action ShowSettingsAsync}"
Foreground="{DynamicResource MaterialDesignDarkForeground}"
Style="{DynamicResource MaterialDesignFlatButton}"
ToolTip="Settings">
@ -273,6 +273,7 @@
Margin="-8"
Background="Transparent"
Cursor="Hand"
MouseLeftButtonUp="{s:Action PullChannelsAsync}"
ToolTip="{Binding Name}">
<!-- Guild icon placeholder -->
<Ellipse
@ -348,7 +349,7 @@
<DataTemplate DataType="{x:Type data:Channel}">
<Grid Margin="-8" Background="Transparent">
<Grid.InputBindings>
<MouseBinding Command="{s:Action Export}" MouseAction="LeftDoubleClick" />
<MouseBinding Command="{s:Action ExportAsync}" MouseAction="LeftDoubleClick" />
</Grid.InputBindings>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
@ -410,9 +411,9 @@
Margin="32,24"
HorizontalAlignment="Right"
VerticalAlignment="Bottom"
Command="{s:Action Export}"
Command="{s:Action ExportAsync}"
Style="{DynamicResource MaterialDesignFloatingActionAccentButton}"
Visibility="{Binding CanExport, Converter={x:Static s:BoolToVisibilityConverter.Instance}}">
Visibility="{Binding CanExportAsync, Converter={x:Static s:BoolToVisibilityConverter.Instance}}">
<materialDesign:PackIcon
Width="32"
Height="32"