fix: resolve InputFile destruction exception during stream read

src/NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor

@@ -16,18 +16,16 @@
             </div>
 
             <div class="modal-body">
-                @if (IsParsing)
+                <div class="parsing-state shimmer" style="@(IsParsing ? "display:flex;" : "display:none;")">
-                {
-                    <div class="parsing-state shimmer">
                     <div class="shimmer-content">
                         <div class="spinner"></div>
                         <p>Scanning metadata...</p>
                     </div>
                 </div>
-                }
+                
-                else if (Metadata != null)
+                <div class="metadata-state" style="@(Metadata != null && !IsParsing ? "display:flex;" : "display:none;")">
+                    @if (Metadata != null)
                     {
-                    <div class="metadata-state">
                         <div class="metadata-info">
                             <h3>@Metadata.Title</h3>
                             <p class="author">@Metadata.Author</p>
@@ -36,23 +34,23 @@
                             <button class="btn btn-primary">Confirm & Upload</button>
                             <button class="btn btn-secondary" @onclick="Reset">Cancel</button>
                         </div>
-                    </div>
                     }
-                else
+                </div>
-                {
+                
                 <div class="upload-state @(_isDragging ? "drag-over" : "")" 
+                     style="@(!IsParsing && Metadata == null ? "display:flex;" : "display:none;")"
                      @ondragenter="OnDragEnter" 
                      @ondragleave="OnDragLeave">
-                        <label for="epub-upload" class="drop-zone">
+                    <div class="drop-zone">
+                        <InputFile id="epub-upload" OnChange="HandleFileSelected" accept=".epub" class="file-input-cover" />
                         <div class="drop-zone-content">
                             <svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"></path><polyline points="17 8 12 3 7 8"></polyline><line x1="12" y1="3" x2="12" y2="15"></line></svg>
                             <p>Drag and drop your .epub file here</p>
                             <span>or click to browse</span>
                         </div>
-                            <InputFile id="epub-upload" OnChange="HandleFileSelected" accept=".epub" class="file-input" />
-                        </label>
                     </div>
-                }
+                </div>
+
                 
                 @if (!string.IsNullOrEmpty(ErrorMessage))
                 {
@@ -138,7 +136,7 @@
         catch (Exception ex)
         {
             Logger.LogError(ex, "Error uploading EPUB");
-            ErrorMessage = "An unexpected error occurred.";
+            ErrorMessage = $"An unexpected error occurred: {ex.Message} \n {ex.StackTrace}";
         }
         finally
         {

src/NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor.css

@@ -77,6 +77,7 @@
     cursor: pointer;
     transition: all 0.3s ease;
     background: rgba(255, 255, 255, 0.02);
+    position: relative;
 }
 
 .drop-zone:hover, .upload-state.drag-over .drop-zone {
@@ -90,6 +91,7 @@
     align-items: center;
     gap: 1rem;
     color: var(--nexus-text-muted, #888);
+    pointer-events: none;
 }
 
 .drop-zone-content svg {
@@ -103,8 +105,15 @@
     color: var(--nexus-text);
 }
 
-.file-input {
+.file-input-cover {
-    display: none;
+    position: absolute;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    opacity: 0;
+    cursor: pointer;
+    z-index: 10;
 }
 
 /* Parsing State */

src/TestEpub/TestEpub.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="VersOne.Epub" Version="3.3.6" />
+  </ItemGroup>
+</Project>