Excel-Import

2026-05-29 16:10:20 +02:00
parent 12f10a44c4
commit 80b74d1ded
4 changed files with 160 additions and 1 deletions
@@ -0,0 +1,114 @@
+@page "/workspace/{*WorkspaceId}"
+@using ZahlenAnalyse.Web.Models
+@using ZahlenAnalyse.Web.Services
+@inject WorkspaceService DbService
+@inject ISnackbar Snackbar
+@inject NavigationManager NavManager
+
+<MudContainer MaxWidth="MaxWidth.Large" Class="mt-8 mb-8">
+    @if (_workspace == null)
+    {
+        <MudProgressCircular Indeterminate="true" />
+    }
+    else
+    {
+        <MudText Typo="Typo.h3" Class="mb-6">@_workspace.Name</MudText>
+
+        <MudGrid>
+            <MudItem xs="12" md="6">
+                <MudPaper Class="pa-6" Elevation="1">
+                    <MudText Typo="Typo.h6" Class="mb-4">Daten importieren</MudText>
+                    <MudText Typo="Typo.body2" Class="mb-4">Lade eine Excel-Datei hoch, um Fakten in diesen Workspace zu importieren.</MudText>
+                    
+                    <MudFileUpload T="IBrowserFile" FilesChanged="@(e => UploadFile(e))" Accept=".xlsx">
+                        <CustomContent>
+                            <MudButton Variant="Variant.Filled" 
+                                    Color="Color.Primary" 
+                                    StartIcon="@Icons.Material.Filled.CloudUpload"
+                                    OnClick="@context.OpenFilePickerAsync">
+                                Excel hochladen
+                            </MudButton>
+                        </CustomContent>
+                    </MudFileUpload>
+                </MudPaper>
+            </MudItem>
+
+            <MudItem xs="12" md="6">
+                <MudPaper Class="pa-6" Elevation="1">
+                    <MudText Typo="Typo.h6" Class="mb-4">Dimensionen</MudText>
+                    <MudStack Row="true" Wrap="Wrap.Wrap">
+                        @foreach (var dim in _workspace.Dimensions)
+                        {
+                            <MudChip T="string" Variant="Variant.Outlined" Color="Color.Info">@dim.Name</MudChip>
+                        }
+                    </MudStack>
+                </MudPaper>
+            </MudItem>
+
+            <MudItem xs="12">
+                <MudPaper Class="pa-6" Elevation="1">
+                    <MudText Typo="Typo.h6" Class="mb-4">Letzte Importe / Einträge</MudText>
+                    <MudTable Items="_recentFakten" Hover="true" Breakpoint="Breakpoint.Sm">
+                        <HeaderContent>
+                            <MudTh>Datum</MudTh>
+                            <MudTh>Betrag</MudTh>
+                            <MudTh>Details</MudTh>
+                        </HeaderContent>
+                        <RowTemplate>
+                            <MudTd>@context.Date.ToShortDateString()</MudTd>
+                            <MudTd>@context.Amount.ToString("N2") €</MudTd>
+                            <MudTd>@string.Join(" | ", context.Dimensions.Values)</MudTd>
+                        </RowTemplate>
+                    </MudTable>
+                </MudPaper>
+            </MudItem>
+        </MudGrid>
+    }
+</MudContainer>
+
+@code {
+    [Parameter] public string WorkspaceId { get; set; } = string.Empty;
+    private Workspace? _workspace;
+    private List<AnalysisFakt> _recentFakten = new();
+
+    protected override async Task OnInitializedAsync()
+    {
+        _workspace = await DbService.GetWorkspaceAsync(WorkspaceId);
+        if (_workspace != null)
+        {
+            _recentFakten = await DbService.GetFaktenForWorkspaceAsync(WorkspaceId);
+            _recentFakten = _recentFakten.Take(5).ToList();
+        }
+    }
+
+    private async Task UploadFile(Microsoft.AspNetCore.Components.Forms.IBrowserFile e)
+    {
+        var file = e;
+        if (file == null) return;
+
+        try
+        {
+            // 1. Datenstrom vom Browser öffnen
+            using var browserStream = file.OpenReadStream(maxAllowedSize: 1024 * 1024 * 10); // 10MB
+            
+            // 2. Den Stream komplett in den "Eimer" (Arbeitsspeicher) laden
+            using var memoryStream = new MemoryStream();
+            await browserStream.CopyToAsync(memoryStream);
+            
+            // 3. WICHTIG: Den Lese-Zeiger im Eimer wieder nach ganz oben setzen!
+            memoryStream.Position = 0;
+
+            // 4. Den fertigen MemoryStream an den Service übergeben
+            await DbService.ImportFromExcelAsync(WorkspaceId, memoryStream);
+            
+            Snackbar.Add("Import erfolgreich!", Severity.Success);
+            
+            // Die Tabelle mit den neuen Daten aktualisieren
+            _recentFakten = (await DbService.GetFaktenForWorkspaceAsync(WorkspaceId)).Take(5).ToList();
+        }
+        catch (Exception ex)
+        {
+            Snackbar.Add($"Fehler beim Import: {ex.Message}", Severity.Error);
+        }
+    }
+}