flesh out the data scan UI, tweak selection table

UI/Dialogs/DataOpen.axaml.cs

@@ -1,95 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Threading.Tasks;
-using Avalonia.Controls;
-using Avalonia.Platform.Storage;
-using Avalonia.Threading;
-using MercuryConverter.Data;
-using UAssetAPI;
-using UAssetAPI.UnrealTypes;
-
-namespace MercuryConverter.UI.Dialogs;
-
-public partial class DataOpen : UserControl
-{
-    public static DataOpen? Instance { get; private set; }
-    public DataOpen()
-    {
-        Instance = this;
-        InitializeComponent();
-
-        if (!Design.IsDesignMode)
-            Run();
-    }
-
-    public void Run()
-    {
-        Task.Run(async () =>
-        {
-            var path = ""; // TODO: set to current data path
-
-            // Content selection
-            while (true)
-            {
-                var selectedPath = await BeginDirSelection();
-                Console.WriteLine($"selectedPath={selectedPath}");
-                if (selectedPath != "" && Directory.Exists(selectedPath))
-                {
-                    path = selectedPath;
-                    break;
-                }
-                // Display error message
-
-            }
-
-            BeginDataScan(path);
-        });
-    }
-
-    private async Task<string> BeginDirSelection()
-    {
-        IReadOnlyList<IStorageFolder>? dirSelection = null;
-
-        await Dispatcher.UIThread.Invoke(async () =>
-        {
-            // Update UI
-            ScanView.IsVisible = false;
-            SelectView.IsVisible = true;
-
-            await Task.Delay(200);
-
-            dirSelection = await TopLevel.GetTopLevel(MainWindow.Instance)!.StorageProvider.OpenFolderPickerAsync
-            (
-                new FolderPickerOpenOptions
-                {
-                    Title = "Locate Data Folder",
-                    AllowMultiple = false,
-                }
-            );
-        });
-
-        if (dirSelection!.Count <= 0)
-        {
-            return "";
-        }
-
-        return dirSelection!.First().TryGetLocalPath()!;
-    }
-
-    private void BeginDataScan(string dataPath)
-    {
-        Console.WriteLine(dataPath);
-        // Update UI
-        Dispatcher.UIThread.Invoke(() =>
-        {
-            SelectView.IsVisible = false;
-            ScanStatus.Text = "scanning...";
-            ScanPath.Text = dataPath;
-            ScanView.IsVisible = true;
-        });
-
-        Database.SetupNew(dataPath);
-    }
-}

UI/Dialogs/DataScanning.axaml

@@ -4,33 +4,39 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:MercuryConverter.UI.Dialogs"
         xmlns:progRing="clr-namespace:AvaloniaProgressRing;assembly=AvaloniaProgressRing"
-        x:Class="MercuryConverter.UI.Dialogs.DataOpen"
+        x:Class="MercuryConverter.UI.Dialogs.DataScanning"
 >
     <Panel Margin="12">
-        <StackPanel Name="SelectView" IsVisible="false">
-            <TextBlock FontSize="24" FontWeight="Light" Text="select your data folder..."/>
-            <progRing:ProgressRing Foreground="{DynamicResource SystemBaseMediumColor}"
-                Width="36" 
-                Height="36"
-                IsActive="True"
-                HorizontalAlignment="Center"
-                Margin="0,15,0,0"/>
-        </StackPanel>
-        <StackPanel Name="ScanView" IsVisible="true">
-            <TextBlock Name="ScanStatus" FontSize="24" FontWeight="Light" Text="scanning..."/>
-            <TextBlock Name="ScanPath" Text="/there/is/a/path/here or whatever it is askljdhflksahdfliuahleifhu"/>
-            <StackPanel Orientation="Horizontal" HorizontalAlignment="Stretch">
+        <StackPanel>
+            <TextBlock Name="ScanStatus" FontSize="24" FontWeight="Light" Text="select your data folder..."/>
+            <TextBlock Name="ScanPath" Text="/there/is/a/path/here" IsVisible="false"/>
+
+            <StackPanel Margin="0 6 0 0" Name="ScanError" IsVisible="False">
+                <TextBlock>
+                    <Run FontWeight="DemiBold" Text="ERROR" Foreground="Red"/>
+                    <LineBreak/>
+                    <Run Name="ErrorText" Text="Data pooped its pants"/>
+                </TextBlock>
+            </StackPanel>
+
+            <StackPanel Name="ScanInfo">
+                
+            </StackPanel>
+
+            <Grid ColumnDefinitions="Auto, *" HorizontalAlignment="Stretch">
                 <progRing:ProgressRing Foreground="{DynamicResource SystemBaseMediumColor}"
+                    Name="ProgressAnimation"
+                    Grid.Column="0"
                     Width="36" 
                     Height="36"
                     IsActive="True"
                     HorizontalAlignment="Left"
                     Margin="0,15,0,0"/>
-                <StackPanel Margin="0 12 0 0" Orientation="Horizontal" HorizontalAlignment="Right">
-                    <Button Margin="6 0 0 0" Content="Cancel" />
-                    <Button Margin="6 0 0 0" Content="Open Data Folder" />
+                <StackPanel Margin="0 12 0 0" Name="ButtonGroup" Orientation="Horizontal" Grid.Column="1" HorizontalAlignment="Right" IsVisible="false">
+                    <Button Name="BtnClose" Margin="6 0 0 0" Content="Close" Click="CloseHandler"/>
+                    <Button Name="BtnSelectFolder" Margin="6 0 0 0" Content="Open Data Folder" Click="OpenDataHandler"/>
                 </StackPanel>
-            </StackPanel>
+            </Grid>
         </StackPanel>
         <!-- <StackPanel Name="SelectErrorView" IsVisible="true">
             <TextBlock FontSize="24" FontWeight="Light" Text="couldn't fully open data folder"/>

UI/Dialogs/DataScanning.axaml.cs

@@ -0,0 +1,170 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Platform.Storage;
+using Avalonia.Threading;
+using MercuryConverter.Data;
+using UAssetAPI;
+using UAssetAPI.UnrealTypes;
+
+namespace MercuryConverter.UI.Dialogs;
+
+public partial class DataScanning : UserControl
+{
+    public static DataScanning? Instance { get; private set; }
+    public DataScanning()
+    {
+        Instance = this;
+        InitializeComponent();
+
+        ScanPath.Text = "";
+
+        if (!Design.IsDesignMode)
+            RunFlow();
+    }
+
+    public void RunFlow()
+    {
+        Task.Run(async () =>
+        {
+            var path = ""; // TODO: set to current/saved data path
+
+            // Content selection
+            var selectedPath = await BeginDirSelection();
+            Console.WriteLine($"selectedPath=[{selectedPath}]");
+
+            if (selectedPath == "") // cancelled opening folder
+            {
+                // TODO:
+                // return and go to completed mode if scan already completed
+                // continue if no scan has been completed
+                // break if we already have a path but somehow not scanned
+                UISetError("No data folder provided.");
+                return;
+            }
+            if (!Directory.Exists(selectedPath))
+            {
+                UISetError("Folder does not exist.");
+                return;
+            }
+            if (!(File.Exists(Path.Combine(selectedPath, "MusicParameterTable.uasset")) && File.Exists(Path.Combine(selectedPath, "MusicParameterTable.uexp"))))
+            {
+                UISetError("Missing MusicParameterTable asset files. Without them, we have nothing to work with.");
+                return;
+            }
+
+            path = selectedPath;
+
+            UIScanningMode(path);
+            Database.SetupNew(path);
+            UIScanCompletedMode();
+        });
+    }
+
+    private void UISelectMode()
+    {
+        UISetError();
+        Dispatcher.UIThread.Post(() =>
+        {
+            ScanStatus.Text = "select your data folder...";
+            ScanPath.IsVisible = false;
+            ButtonGroup.IsVisible = false;
+            ProgressAnimation.IsVisible = true;
+        });
+    }
+
+    private void UIScanningMode(string path)
+    {
+        UISetError();
+        Dispatcher.UIThread.Post(() =>
+        {
+            ScanStatus.Text = "scanning...";
+            ScanPath.IsVisible = true;
+            ScanPath.Text = path;
+            ScanInfo.IsVisible = true;
+            ButtonGroup.IsVisible = false;
+            ProgressAnimation.IsVisible = true;
+        });
+    }
+
+    private void UIScanCompletedMode()
+    {
+        Dispatcher.UIThread.Post(() =>
+        {
+            ScanStatus.Text = "scan complete";
+            ScanPath.IsVisible = true;
+            ScanInfo.IsVisible = true;
+            ButtonGroup.IsVisible = true;
+            ProgressAnimation.IsVisible = false;
+        });
+    }
+
+    /// <summary>
+    /// Use only when no other processes are running.
+    /// </summary>
+    /// <param name="error"></param>
+    private void UISetError(string? error = null)
+    {
+        Dispatcher.UIThread.Post(() =>
+        {
+            if (error == null)
+            {
+                ScanError.IsVisible = false;
+                return;
+            }
+
+            ScanError.IsVisible = true;
+            ErrorText.Text = error;
+            ProgressAnimation.IsVisible = false;
+            ButtonGroup.IsVisible = true;
+            ScanStatus.Text = "an error has occurred";
+        });
+
+    }
+
+    private async Task<string> BeginDirSelection(string? startDir = null)
+    {
+        IReadOnlyList<IStorageFolder>? dirSelection = null;
+
+        UISelectMode();
+
+        await Dispatcher.UIThread.Invoke(async () =>
+        {
+            await Task.Delay(250);
+            var tl = TopLevel.GetTopLevel(MainWindow.Instance)!;
+            dirSelection = await tl.StorageProvider.OpenFolderPickerAsync
+            (
+                new FolderPickerOpenOptions
+                {
+                    Title = "Locate Data Folder",
+                    AllowMultiple = false,
+                    SuggestedStartLocation = startDir == null ? null : await tl.StorageProvider.TryGetFolderFromPathAsync(startDir),
+                }
+            );
+        });
+
+        if (dirSelection!.Count <= 0)
+        {
+            return "";
+        }
+
+        return dirSelection!.First().TryGetLocalPath()!;
+    }
+
+    private void CloseHandler(object sender, RoutedEventArgs args)
+    {
+        Dispatcher.UIThread.Post(() =>
+        {
+            MainWindow.Instance!.Dialog.IsOpen = false;
+        });
+    }
+
+    private void OpenDataHandler(object sender, RoutedEventArgs args)
+    {
+        RunFlow();
+    }
+}

UI/Dialogs/Welcome.axaml.cs

@@ -14,6 +14,6 @@ public partial class Welcome : Window
 
     private void ClickHandler(object sender, RoutedEventArgs args)
     {
-        MainWindow.Instance!.Dialog.DialogContent = new DataOpen().Content;
+        MainWindow.Instance!.Dialog.DialogContent = new DataScanning().Content;
     }
 }