Fix charts crashing on initialization.

Aaru.Server/Components/Pages/Statistics/Devices.razor.cs

@@ -15,6 +15,7 @@ public partial class Devices
     List<long>       _devicesByManufacturerCounts = [];
     string[]         _devicesByManufacturerLabels = [];
     Carousel?        _devicesCarousel;
+    bool             _isAlreadyInitialized;
     List<DeviceItem> DevicesList { get; set; } = [];
 
     /// <inheritdoc />
@@ -29,6 +30,15 @@ public partial class Devices
                                  .ThenBy(static device => device.Revision)
                                  .ThenBy(static device => device.Bus)
                                  .ToList();
+    }
+
+    /// <inheritdoc />
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if(_isAlreadyInitialized) return;
+
+        _isAlreadyInitialized = true;
+        await using DbContext ctx = await DbContextFactory.CreateDbContextAsync();
 
         var data = await ctx.DeviceStats.Select(static d => d.Bus)
                             .Distinct()

Aaru.Server/Components/Pages/Statistics/Filesystems.razor.cs

@@ -10,6 +10,7 @@ public partial class Filesystems
     PieChart<long>?  _filesystemsChart;
     List<long>       _filesystemsCounts = [];
     string[]         _filesystemsLabels = [];
+    bool             _isAlreadyInitialized;
     List<Filesystem> FilesystemsList { get; set; } = [];
 
     /// <inheritdoc />
@@ -20,6 +21,15 @@ public partial class Filesystems
         await using DbContext ctx = await DbContextFactory.CreateDbContextAsync();
 
         FilesystemsList = await ctx.Filesystems.OrderBy(static filesystem => filesystem.Name).ToListAsync();
+    }
+
+    /// <inheritdoc />
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if(_isAlreadyInitialized) return;
+
+        _isAlreadyInitialized = true;
+        await using DbContext ctx = await DbContextFactory.CreateDbContextAsync();
 
         _filesystemsLabels = await ctx.Filesystems.OrderByDescending(static o => o.Count)
                                       .Take(10)

Aaru.Server/Components/Pages/Statistics/Filters.razor.cs

@@ -10,6 +10,7 @@ public partial class Filters
     PieChart<long>? _filtersChart;
     List<long>      _filtersCounts = [];
     string[]        _filtersLabels = [];
+    bool            _isAlreadyInitialized;
     List<Filter>    FiltersList { get; set; } = [];
 
     /// <inheritdoc />
@@ -20,6 +21,15 @@ public partial class Filters
         await using DbContext ctx = await DbContextFactory.CreateDbContextAsync();
 
         FiltersList = await ctx.Filters.OrderBy(static filter => filter.Name).ToListAsync();
+    }
+
+    /// <inheritdoc />
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if(_isAlreadyInitialized) return;
+
+        _isAlreadyInitialized = true;
+        await using DbContext ctx = await DbContextFactory.CreateDbContextAsync();
 
         _filtersLabels = await ctx.Filters.OrderByDescending(static o => o.Count)
                                   .Take(10)

Aaru.Server/Components/Pages/Statistics/Formats.razor.cs

@@ -10,6 +10,7 @@ public partial class Formats
     PieChart<long>?   _formatsChart;
     List<long>        _formatsCounts = [];
     string[]          _formatsLabels = [];
+    bool              _isAlreadyInitialized;
     List<MediaFormat> MediaImages { get; set; } = [];
 
     /// <inheritdoc />
@@ -18,7 +19,15 @@ public partial class Formats
         await base.OnInitializedAsync();
 
         await using DbContext ctx = await DbContextFactory.CreateDbContextAsync();
+    }
 
+    /// <inheritdoc />
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if(_isAlreadyInitialized) return;
+
+        _isAlreadyInitialized = true;
+        await using DbContext ctx = await DbContextFactory.CreateDbContextAsync();
 
         MediaImages = await ctx.MediaFormats.OrderBy(static format => format.Name).ToListAsync();
 

Aaru.Server/Components/Pages/Statistics/OperatingSystems.razor.cs

@@ -10,6 +10,7 @@ namespace Aaru.Server.Components.Pages.Statistics;
 
 public partial class OperatingSystems
 {
+    bool                 _isAlreadyInitialized;
     PieChart<long>?      _linuxChart;
     List<long>           _linuxCounts = [];
     string[]             _linuxLabels = [];
@@ -43,6 +44,17 @@ public partial class OperatingSystems
                                           })
                                          .ToListAsync()).OrderBy(static os => os.name)
                                                         .ToList();
+    }
+
+    /// <inheritdoc />
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if(_isAlreadyInitialized) return;
+
+        _isAlreadyInitialized = true;
+
+        // TODO: Cache real OS name in database, lookups would be much faster
+        await using DbContext ctx = await DbContextFactory.CreateDbContextAsync();
 
         var osQuery = ctx.OperatingSystems.GroupBy(static x => new
                                                    {

Aaru.Server/Components/Pages/Statistics/Partitions.razor.cs

@@ -7,6 +7,7 @@ namespace Aaru.Server.Components.Pages.Statistics;
 
 public partial class Partitions
 {
+    bool            _isAlreadyInitialized;
     PieChart<long>? _partitionsChart;
     List<long>      _partitionsCounts = [];
     string[]        _partitionsLabels = [];
@@ -18,6 +19,15 @@ public partial class Partitions
         await base.OnInitializedAsync();
 
         await using DbContext ctx = await DbContextFactory.CreateDbContextAsync();
+    }
+
+    /// <inheritdoc />
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if(_isAlreadyInitialized) return;
+
+        _isAlreadyInitialized = true;
+        await using DbContext ctx = await DbContextFactory.CreateDbContextAsync();
 
         PartitionsList = await ctx.Partitions.OrderBy(static partition => partition.Name).ToListAsync();
 

Aaru.Server/Components/Pages/Statistics/RealMedias.razor.cs

@@ -9,6 +9,7 @@ namespace Aaru.Server.Components.Pages.Statistics;
 
 public partial class RealMedias
 {
+    bool            _isAlreadyInitialized;
     PieChart<long>? _realMediaChart;
     List<long>      _realMediaCounts = [];
     string[]        _realMediaLabels = [];
@@ -20,6 +21,15 @@ public partial class RealMedias
         await base.OnInitializedAsync();
 
         await using DbContext ctx = await DbContextFactory.CreateDbContextAsync();
+    }
+
+    /// <inheritdoc />
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if(_isAlreadyInitialized) return;
+
+        _isAlreadyInitialized = true;
+        await using DbContext ctx = await DbContextFactory.CreateDbContextAsync();
 
         Media[] realMedias = await ctx.Medias.Where(static o => o.Real)
                                       .OrderByDescending(static o => o.Count)

Aaru.Server/Components/Pages/Statistics/Versions.razor.cs

@@ -7,6 +7,7 @@ namespace Aaru.Server.Components.Pages.Statistics;
 
 public partial class Versions
 {
+    bool                 _isAlreadyInitialized;
     PieChart<long>?      _versionsChart;
     List<long>           _versionsCounts = [];
     string[]             _versionsLabels = [];
@@ -26,6 +27,15 @@ public partial class Versions
                                   })
                                  .ToListAsync()).OrderBy(static version => version.name)
                                                 .ToList();
+    }
+
+    /// <inheritdoc />
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if(_isAlreadyInitialized) return;
+
+        _isAlreadyInitialized = true;
+        await using DbContext ctx = await DbContextFactory.CreateDbContextAsync();
 
         _versionsLabels = await ctx.Versions.OrderByDescending(static o => o.Count)
                                    .Take(10)

Aaru.Server/Components/Pages/Statistics/VirtualMedias.razor.cs

@@ -9,6 +9,7 @@ namespace Aaru.Server.Components.Pages.Statistics;
 
 public partial class VirtualMedias
 {
+    bool            _isAlreadyInitialized;
     PieChart<long>? _virtualMediaChart;
     List<long>      _virtualMediaCounts = [];
     string[]        _virtualMediaLabels = [];
@@ -20,6 +21,15 @@ public partial class VirtualMedias
         await base.OnInitializedAsync();
 
         await using DbContext ctx = await DbContextFactory.CreateDbContextAsync();
+    }
+
+    /// <inheritdoc />
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if(_isAlreadyInitialized) return;
+
+        _isAlreadyInitialized = true;
+        await using DbContext ctx = await DbContextFactory.CreateDbContextAsync();
 
         Media[] virtualMedias = await ctx.Medias.Where(static o => !o.Real)
                                          .OrderByDescending(static o => o.Count)